http://git-wip-us.apache.org/repos/asf/hbase-site/blob/89b638a4/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/TestRegionMergeTransactionOnCluster.html ---------------------------------------------------------------------- diff --git a/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/TestRegionMergeTransactionOnCluster.html b/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/TestRegionMergeTransactionOnCluster.html index 1bdbf69..f83e138 100644 --- a/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/TestRegionMergeTransactionOnCluster.html +++ b/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/TestRegionMergeTransactionOnCluster.html @@ -86,478 +86,483 @@ <span class="sourceLineNo">078</span>import org.junit.Rule;<a name="line.78"></a> <span class="sourceLineNo">079</span>import org.junit.Test;<a name="line.79"></a> <span class="sourceLineNo">080</span>import org.junit.experimental.categories.Category;<a name="line.80"></a> -<span class="sourceLineNo">081</span>import org.junit.rules.TestRule;<a name="line.81"></a> -<span class="sourceLineNo">082</span><a name="line.82"></a> -<span class="sourceLineNo">083</span>import com.google.common.base.Joiner;<a name="line.83"></a> -<span class="sourceLineNo">084</span>import com.google.protobuf.RpcController;<a name="line.84"></a> -<span class="sourceLineNo">085</span>import com.google.protobuf.ServiceException;<a name="line.85"></a> -<span class="sourceLineNo">086</span><a name="line.86"></a> -<span class="sourceLineNo">087</span>/**<a name="line.87"></a> -<span class="sourceLineNo">088</span> * Like {@link TestRegionMergeTransaction} in that we're testing<a name="line.88"></a> -<span class="sourceLineNo">089</span> * {@link RegionMergeTransactionImpl} only the below tests are against a running<a name="line.89"></a> -<span class="sourceLineNo">090</span> * cluster where {@link TestRegionMergeTransaction} is tests against bare<a name="line.90"></a> -<span class="sourceLineNo">091</span> * {@link HRegion}.<a name="line.91"></a> -<span class="sourceLineNo">092</span> */<a name="line.92"></a> -<span class="sourceLineNo">093</span>@Category({RegionServerTests.class, LargeTests.class})<a name="line.93"></a> -<span class="sourceLineNo">094</span>public class TestRegionMergeTransactionOnCluster {<a name="line.94"></a> -<span class="sourceLineNo">095</span> private static final Log LOG = LogFactory<a name="line.95"></a> -<span class="sourceLineNo">096</span> .getLog(TestRegionMergeTransactionOnCluster.class);<a name="line.96"></a> -<span class="sourceLineNo">097</span> @Rule public final TestRule timeout = CategoryBasedTimeout.builder().withTimeout(this.getClass()).<a name="line.97"></a> -<span class="sourceLineNo">098</span> withLookingForStuckThread(true).build();<a name="line.98"></a> -<span class="sourceLineNo">099</span> private static final int NB_SERVERS = 3;<a name="line.99"></a> -<span class="sourceLineNo">100</span><a name="line.100"></a> -<span class="sourceLineNo">101</span> private static final byte[] FAMILYNAME = Bytes.toBytes("fam");<a name="line.101"></a> -<span class="sourceLineNo">102</span> private static final byte[] QUALIFIER = Bytes.toBytes("q");<a name="line.102"></a> -<span class="sourceLineNo">103</span><a name="line.103"></a> -<span class="sourceLineNo">104</span> private static byte[] ROW = Bytes.toBytes("testRow");<a name="line.104"></a> -<span class="sourceLineNo">105</span> private static final int INITIAL_REGION_NUM = 10;<a name="line.105"></a> -<span class="sourceLineNo">106</span> private static final int ROWSIZE = 200;<a name="line.106"></a> -<span class="sourceLineNo">107</span> private static byte[][] ROWS = makeN(ROW, ROWSIZE);<a name="line.107"></a> -<span class="sourceLineNo">108</span><a name="line.108"></a> -<span class="sourceLineNo">109</span> private static int waitTime = 60 * 1000;<a name="line.109"></a> +<span class="sourceLineNo">081</span>import org.junit.rules.TestName;<a name="line.81"></a> +<span class="sourceLineNo">082</span>import org.junit.rules.TestRule;<a name="line.82"></a> +<span class="sourceLineNo">083</span><a name="line.83"></a> +<span class="sourceLineNo">084</span>import com.google.common.base.Joiner;<a name="line.84"></a> +<span class="sourceLineNo">085</span>import com.google.protobuf.RpcController;<a name="line.85"></a> +<span class="sourceLineNo">086</span>import com.google.protobuf.ServiceException;<a name="line.86"></a> +<span class="sourceLineNo">087</span><a name="line.87"></a> +<span class="sourceLineNo">088</span>/**<a name="line.88"></a> +<span class="sourceLineNo">089</span> * Like {@link TestRegionMergeTransaction} in that we're testing<a name="line.89"></a> +<span class="sourceLineNo">090</span> * {@link RegionMergeTransactionImpl} only the below tests are against a running<a name="line.90"></a> +<span class="sourceLineNo">091</span> * cluster where {@link TestRegionMergeTransaction} is tests against bare<a name="line.91"></a> +<span class="sourceLineNo">092</span> * {@link HRegion}.<a name="line.92"></a> +<span class="sourceLineNo">093</span> */<a name="line.93"></a> +<span class="sourceLineNo">094</span>@Category({RegionServerTests.class, LargeTests.class})<a name="line.94"></a> +<span class="sourceLineNo">095</span>public class TestRegionMergeTransactionOnCluster {<a name="line.95"></a> +<span class="sourceLineNo">096</span> private static final Log LOG = LogFactory<a name="line.96"></a> +<span class="sourceLineNo">097</span> .getLog(TestRegionMergeTransactionOnCluster.class);<a name="line.97"></a> +<span class="sourceLineNo">098</span> @Rule public TestName name = new TestName();<a name="line.98"></a> +<span class="sourceLineNo">099</span> @Rule public final TestRule timeout = CategoryBasedTimeout.builder().withTimeout(this.getClass()).<a name="line.99"></a> +<span class="sourceLineNo">100</span> withLookingForStuckThread(true).build();<a name="line.100"></a> +<span class="sourceLineNo">101</span> private static final int NB_SERVERS = 3;<a name="line.101"></a> +<span class="sourceLineNo">102</span><a name="line.102"></a> +<span class="sourceLineNo">103</span> private static final byte[] FAMILYNAME = Bytes.toBytes("fam");<a name="line.103"></a> +<span class="sourceLineNo">104</span> private static final byte[] QUALIFIER = Bytes.toBytes("q");<a name="line.104"></a> +<span class="sourceLineNo">105</span><a name="line.105"></a> +<span class="sourceLineNo">106</span> private static byte[] ROW = Bytes.toBytes("testRow");<a name="line.106"></a> +<span class="sourceLineNo">107</span> private static final int INITIAL_REGION_NUM = 10;<a name="line.107"></a> +<span class="sourceLineNo">108</span> private static final int ROWSIZE = 200;<a name="line.108"></a> +<span class="sourceLineNo">109</span> private static byte[][] ROWS = makeN(ROW, ROWSIZE);<a name="line.109"></a> <span class="sourceLineNo">110</span><a name="line.110"></a> -<span class="sourceLineNo">111</span> static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();<a name="line.111"></a> +<span class="sourceLineNo">111</span> private static int waitTime = 60 * 1000;<a name="line.111"></a> <span class="sourceLineNo">112</span><a name="line.112"></a> -<span class="sourceLineNo">113</span> private static HMaster MASTER;<a name="line.113"></a> -<span class="sourceLineNo">114</span> private static Admin ADMIN;<a name="line.114"></a> -<span class="sourceLineNo">115</span><a name="line.115"></a> -<span class="sourceLineNo">116</span> @BeforeClass<a name="line.116"></a> -<span class="sourceLineNo">117</span> public static void beforeAllTests() throws Exception {<a name="line.117"></a> -<span class="sourceLineNo">118</span> // Start a cluster<a name="line.118"></a> -<span class="sourceLineNo">119</span> TEST_UTIL.startMiniCluster(1, NB_SERVERS, null, MyMaster.class, null);<a name="line.119"></a> -<span class="sourceLineNo">120</span> MiniHBaseCluster cluster = TEST_UTIL.getHBaseCluster();<a name="line.120"></a> -<span class="sourceLineNo">121</span> MASTER = cluster.getMaster();<a name="line.121"></a> -<span class="sourceLineNo">122</span> MASTER.balanceSwitch(false);<a name="line.122"></a> -<span class="sourceLineNo">123</span> ADMIN = TEST_UTIL.getConnection().getAdmin();<a name="line.123"></a> -<span class="sourceLineNo">124</span> }<a name="line.124"></a> -<span class="sourceLineNo">125</span><a name="line.125"></a> -<span class="sourceLineNo">126</span> @AfterClass<a name="line.126"></a> -<span class="sourceLineNo">127</span> public static void afterAllTests() throws Exception {<a name="line.127"></a> -<span class="sourceLineNo">128</span> TEST_UTIL.shutdownMiniCluster();<a name="line.128"></a> -<span class="sourceLineNo">129</span> if (ADMIN != null) ADMIN.close();<a name="line.129"></a> -<span class="sourceLineNo">130</span> }<a name="line.130"></a> -<span class="sourceLineNo">131</span><a name="line.131"></a> -<span class="sourceLineNo">132</span> @Test<a name="line.132"></a> -<span class="sourceLineNo">133</span> public void testWholesomeMerge() throws Exception {<a name="line.133"></a> -<span class="sourceLineNo">134</span> LOG.info("Starting testWholesomeMerge");<a name="line.134"></a> -<span class="sourceLineNo">135</span> final TableName tableName =<a name="line.135"></a> -<span class="sourceLineNo">136</span> TableName.valueOf("testWholesomeMerge");<a name="line.136"></a> -<span class="sourceLineNo">137</span><a name="line.137"></a> -<span class="sourceLineNo">138</span> // Create table and load data.<a name="line.138"></a> -<span class="sourceLineNo">139</span> Table table = createTableAndLoadData(MASTER, tableName);<a name="line.139"></a> -<span class="sourceLineNo">140</span> // Merge 1st and 2nd region<a name="line.140"></a> -<span class="sourceLineNo">141</span> mergeRegionsAndVerifyRegionNum(MASTER, tableName, 0, 1,<a name="line.141"></a> -<span class="sourceLineNo">142</span> INITIAL_REGION_NUM - 1);<a name="line.142"></a> -<span class="sourceLineNo">143</span><a name="line.143"></a> -<span class="sourceLineNo">144</span> // Merge 2nd and 3th region<a name="line.144"></a> -<span class="sourceLineNo">145</span> PairOfSameType<HRegionInfo> mergedRegions =<a name="line.145"></a> -<span class="sourceLineNo">146</span> mergeRegionsAndVerifyRegionNum(MASTER, tableName, 1, 2,<a name="line.146"></a> -<span class="sourceLineNo">147</span> INITIAL_REGION_NUM - 2);<a name="line.147"></a> -<span class="sourceLineNo">148</span><a name="line.148"></a> -<span class="sourceLineNo">149</span> verifyRowCount(table, ROWSIZE);<a name="line.149"></a> +<span class="sourceLineNo">113</span> static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();<a name="line.113"></a> +<span class="sourceLineNo">114</span><a name="line.114"></a> +<span class="sourceLineNo">115</span> private static HMaster MASTER;<a name="line.115"></a> +<span class="sourceLineNo">116</span> private static Admin ADMIN;<a name="line.116"></a> +<span class="sourceLineNo">117</span><a name="line.117"></a> +<span class="sourceLineNo">118</span> @BeforeClass<a name="line.118"></a> +<span class="sourceLineNo">119</span> public static void beforeAllTests() throws Exception {<a name="line.119"></a> +<span class="sourceLineNo">120</span> // Start a cluster<a name="line.120"></a> +<span class="sourceLineNo">121</span> TEST_UTIL.startMiniCluster(1, NB_SERVERS, null, MyMaster.class, null);<a name="line.121"></a> +<span class="sourceLineNo">122</span> MiniHBaseCluster cluster = TEST_UTIL.getHBaseCluster();<a name="line.122"></a> +<span class="sourceLineNo">123</span> MASTER = cluster.getMaster();<a name="line.123"></a> +<span class="sourceLineNo">124</span> MASTER.balanceSwitch(false);<a name="line.124"></a> +<span class="sourceLineNo">125</span> ADMIN = TEST_UTIL.getConnection().getAdmin();<a name="line.125"></a> +<span class="sourceLineNo">126</span> }<a name="line.126"></a> +<span class="sourceLineNo">127</span><a name="line.127"></a> +<span class="sourceLineNo">128</span> @AfterClass<a name="line.128"></a> +<span class="sourceLineNo">129</span> public static void afterAllTests() throws Exception {<a name="line.129"></a> +<span class="sourceLineNo">130</span> TEST_UTIL.shutdownMiniCluster();<a name="line.130"></a> +<span class="sourceLineNo">131</span> if (ADMIN != null) ADMIN.close();<a name="line.131"></a> +<span class="sourceLineNo">132</span> }<a name="line.132"></a> +<span class="sourceLineNo">133</span><a name="line.133"></a> +<span class="sourceLineNo">134</span> @Test<a name="line.134"></a> +<span class="sourceLineNo">135</span> public void testWholesomeMerge() throws Exception {<a name="line.135"></a> +<span class="sourceLineNo">136</span> LOG.info("Starting testWholesomeMerge");<a name="line.136"></a> +<span class="sourceLineNo">137</span> final TableName tableName =<a name="line.137"></a> +<span class="sourceLineNo">138</span> TableName.valueOf("testWholesomeMerge");<a name="line.138"></a> +<span class="sourceLineNo">139</span><a name="line.139"></a> +<span class="sourceLineNo">140</span> // Create table and load data.<a name="line.140"></a> +<span class="sourceLineNo">141</span> Table table = createTableAndLoadData(MASTER, tableName);<a name="line.141"></a> +<span class="sourceLineNo">142</span> // Merge 1st and 2nd region<a name="line.142"></a> +<span class="sourceLineNo">143</span> mergeRegionsAndVerifyRegionNum(MASTER, tableName, 0, 1,<a name="line.143"></a> +<span class="sourceLineNo">144</span> INITIAL_REGION_NUM - 1);<a name="line.144"></a> +<span class="sourceLineNo">145</span><a name="line.145"></a> +<span class="sourceLineNo">146</span> // Merge 2nd and 3th region<a name="line.146"></a> +<span class="sourceLineNo">147</span> PairOfSameType<HRegionInfo> mergedRegions =<a name="line.147"></a> +<span class="sourceLineNo">148</span> mergeRegionsAndVerifyRegionNum(MASTER, tableName, 1, 2,<a name="line.148"></a> +<span class="sourceLineNo">149</span> INITIAL_REGION_NUM - 2);<a name="line.149"></a> <span class="sourceLineNo">150</span><a name="line.150"></a> -<span class="sourceLineNo">151</span> // Randomly choose one of the two merged regions<a name="line.151"></a> -<span class="sourceLineNo">152</span> HRegionInfo hri = RandomUtils.nextBoolean() ?<a name="line.152"></a> -<span class="sourceLineNo">153</span> mergedRegions.getFirst() : mergedRegions.getSecond();<a name="line.153"></a> -<span class="sourceLineNo">154</span> MiniHBaseCluster cluster = TEST_UTIL.getHBaseCluster();<a name="line.154"></a> -<span class="sourceLineNo">155</span> AssignmentManager am = cluster.getMaster().getAssignmentManager();<a name="line.155"></a> -<span class="sourceLineNo">156</span> RegionStates regionStates = am.getRegionStates();<a name="line.156"></a> -<span class="sourceLineNo">157</span> long start = EnvironmentEdgeManager.currentTime();<a name="line.157"></a> -<span class="sourceLineNo">158</span> while (!regionStates.isRegionInState(hri, State.MERGED)) {<a name="line.158"></a> -<span class="sourceLineNo">159</span> assertFalse("Timed out in waiting one merged region to be in state MERGED",<a name="line.159"></a> -<span class="sourceLineNo">160</span> EnvironmentEdgeManager.currentTime() - start > 60000);<a name="line.160"></a> -<span class="sourceLineNo">161</span> Thread.sleep(500);<a name="line.161"></a> -<span class="sourceLineNo">162</span> }<a name="line.162"></a> -<span class="sourceLineNo">163</span><a name="line.163"></a> -<span class="sourceLineNo">164</span> // We should not be able to assign it again<a name="line.164"></a> -<span class="sourceLineNo">165</span> am.assign(hri, true);<a name="line.165"></a> -<span class="sourceLineNo">166</span> assertFalse("Merged region can't be assigned",<a name="line.166"></a> -<span class="sourceLineNo">167</span> regionStates.isRegionInTransition(hri));<a name="line.167"></a> -<span class="sourceLineNo">168</span> assertTrue(regionStates.isRegionInState(hri, State.MERGED));<a name="line.168"></a> -<span class="sourceLineNo">169</span><a name="line.169"></a> -<span class="sourceLineNo">170</span> // We should not be able to unassign it either<a name="line.170"></a> -<span class="sourceLineNo">171</span> am.unassign(hri, null);<a name="line.171"></a> -<span class="sourceLineNo">172</span> assertFalse("Merged region can't be unassigned",<a name="line.172"></a> -<span class="sourceLineNo">173</span> regionStates.isRegionInTransition(hri));<a name="line.173"></a> -<span class="sourceLineNo">174</span> assertTrue(regionStates.isRegionInState(hri, State.MERGED));<a name="line.174"></a> -<span class="sourceLineNo">175</span><a name="line.175"></a> -<span class="sourceLineNo">176</span> table.close();<a name="line.176"></a> -<span class="sourceLineNo">177</span> }<a name="line.177"></a> -<span class="sourceLineNo">178</span><a name="line.178"></a> -<span class="sourceLineNo">179</span> /**<a name="line.179"></a> -<span class="sourceLineNo">180</span> * Not really restarting the master. Simulate it by clear of new region<a name="line.180"></a> -<span class="sourceLineNo">181</span> * state since it is not persisted, will be lost after master restarts.<a name="line.181"></a> -<span class="sourceLineNo">182</span> */<a name="line.182"></a> -<span class="sourceLineNo">183</span> @Test<a name="line.183"></a> -<span class="sourceLineNo">184</span> public void testMergeAndRestartingMaster() throws Exception {<a name="line.184"></a> -<span class="sourceLineNo">185</span> LOG.info("Starting testMergeAndRestartingMaster");<a name="line.185"></a> -<span class="sourceLineNo">186</span> final TableName tableName = TableName.valueOf("testMergeAndRestartingMaster");<a name="line.186"></a> -<span class="sourceLineNo">187</span><a name="line.187"></a> -<span class="sourceLineNo">188</span> // Create table and load data.<a name="line.188"></a> -<span class="sourceLineNo">189</span> Table table = createTableAndLoadData(MASTER, tableName);<a name="line.189"></a> -<span class="sourceLineNo">190</span><a name="line.190"></a> -<span class="sourceLineNo">191</span> try {<a name="line.191"></a> -<span class="sourceLineNo">192</span> MyMasterRpcServices.enabled.set(true);<a name="line.192"></a> -<span class="sourceLineNo">193</span><a name="line.193"></a> -<span class="sourceLineNo">194</span> // Merge 1st and 2nd region<a name="line.194"></a> -<span class="sourceLineNo">195</span> mergeRegionsAndVerifyRegionNum(MASTER, tableName, 0, 1, INITIAL_REGION_NUM - 1);<a name="line.195"></a> -<span class="sourceLineNo">196</span> } finally {<a name="line.196"></a> -<span class="sourceLineNo">197</span> MyMasterRpcServices.enabled.set(false);<a name="line.197"></a> -<span class="sourceLineNo">198</span> }<a name="line.198"></a> -<span class="sourceLineNo">199</span><a name="line.199"></a> -<span class="sourceLineNo">200</span> table.close();<a name="line.200"></a> -<span class="sourceLineNo">201</span> }<a name="line.201"></a> -<span class="sourceLineNo">202</span><a name="line.202"></a> -<span class="sourceLineNo">203</span> @Test<a name="line.203"></a> -<span class="sourceLineNo">204</span> public void testCleanMergeReference() throws Exception {<a name="line.204"></a> -<span class="sourceLineNo">205</span> LOG.info("Starting testCleanMergeReference");<a name="line.205"></a> -<span class="sourceLineNo">206</span> ADMIN.enableCatalogJanitor(false);<a name="line.206"></a> -<span class="sourceLineNo">207</span> try {<a name="line.207"></a> -<span class="sourceLineNo">208</span> final TableName tableName =<a name="line.208"></a> -<span class="sourceLineNo">209</span> TableName.valueOf("testCleanMergeReference");<a name="line.209"></a> -<span class="sourceLineNo">210</span> // Create table and load data.<a name="line.210"></a> -<span class="sourceLineNo">211</span> Table table = createTableAndLoadData(MASTER, tableName);<a name="line.211"></a> -<span class="sourceLineNo">212</span> // Merge 1st and 2nd region<a name="line.212"></a> -<span class="sourceLineNo">213</span> mergeRegionsAndVerifyRegionNum(MASTER, tableName, 0, 1,<a name="line.213"></a> -<span class="sourceLineNo">214</span> INITIAL_REGION_NUM - 1);<a name="line.214"></a> -<span class="sourceLineNo">215</span> verifyRowCount(table, ROWSIZE);<a name="line.215"></a> -<span class="sourceLineNo">216</span> table.close();<a name="line.216"></a> -<span class="sourceLineNo">217</span><a name="line.217"></a> -<span class="sourceLineNo">218</span> List<Pair<HRegionInfo, ServerName>> tableRegions = MetaTableAccessor<a name="line.218"></a> -<span class="sourceLineNo">219</span> .getTableRegionsAndLocations(MASTER.getConnection(), tableName);<a name="line.219"></a> -<span class="sourceLineNo">220</span> HRegionInfo mergedRegionInfo = tableRegions.get(0).getFirst();<a name="line.220"></a> -<span class="sourceLineNo">221</span> HTableDescriptor tableDescriptor = MASTER.getTableDescriptors().get(<a name="line.221"></a> -<span class="sourceLineNo">222</span> tableName);<a name="line.222"></a> -<span class="sourceLineNo">223</span> Result mergedRegionResult = MetaTableAccessor.getRegionResult(<a name="line.223"></a> -<span class="sourceLineNo">224</span> MASTER.getConnection(), mergedRegionInfo.getRegionName());<a name="line.224"></a> -<span class="sourceLineNo">225</span><a name="line.225"></a> -<span class="sourceLineNo">226</span> // contains merge reference in META<a name="line.226"></a> -<span class="sourceLineNo">227</span> assertTrue(mergedRegionResult.getValue(HConstants.CATALOG_FAMILY,<a name="line.227"></a> -<span class="sourceLineNo">228</span> HConstants.MERGEA_QUALIFIER) != null);<a name="line.228"></a> -<span class="sourceLineNo">229</span> assertTrue(mergedRegionResult.getValue(HConstants.CATALOG_FAMILY,<a name="line.229"></a> -<span class="sourceLineNo">230</span> HConstants.MERGEB_QUALIFIER) != null);<a name="line.230"></a> -<span class="sourceLineNo">231</span><a name="line.231"></a> -<span class="sourceLineNo">232</span> // merging regions' directory are in the file system all the same<a name="line.232"></a> -<span class="sourceLineNo">233</span> PairOfSameType<HRegionInfo> p = MetaTableAccessor.getMergeRegions(mergedRegionResult);<a name="line.233"></a> -<span class="sourceLineNo">234</span> HRegionInfo regionA = p.getFirst();<a name="line.234"></a> -<span class="sourceLineNo">235</span> HRegionInfo regionB = p.getSecond();<a name="line.235"></a> -<span class="sourceLineNo">236</span> FileSystem fs = MASTER.getMasterFileSystem().getFileSystem();<a name="line.236"></a> -<span class="sourceLineNo">237</span> Path rootDir = MASTER.getMasterFileSystem().getRootDir();<a name="line.237"></a> -<span class="sourceLineNo">238</span><a name="line.238"></a> -<span class="sourceLineNo">239</span> Path tabledir = FSUtils.getTableDir(rootDir, mergedRegionInfo.getTable());<a name="line.239"></a> -<span class="sourceLineNo">240</span> Path regionAdir = new Path(tabledir, regionA.getEncodedName());<a name="line.240"></a> -<span class="sourceLineNo">241</span> Path regionBdir = new Path(tabledir, regionB.getEncodedName());<a name="line.241"></a> -<span class="sourceLineNo">242</span> assertTrue(fs.exists(regionAdir));<a name="line.242"></a> -<span class="sourceLineNo">243</span> assertTrue(fs.exists(regionBdir));<a name="line.243"></a> -<span class="sourceLineNo">244</span><a name="line.244"></a> -<span class="sourceLineNo">245</span> HColumnDescriptor[] columnFamilies = tableDescriptor.getColumnFamilies();<a name="line.245"></a> -<span class="sourceLineNo">246</span> HRegionFileSystem hrfs = new HRegionFileSystem(<a name="line.246"></a> -<span class="sourceLineNo">247</span> TEST_UTIL.getConfiguration(), fs, tabledir, mergedRegionInfo);<a name="line.247"></a> -<span class="sourceLineNo">248</span> int count = 0;<a name="line.248"></a> -<span class="sourceLineNo">249</span> for(HColumnDescriptor colFamily : columnFamilies) {<a name="line.249"></a> -<span class="sourceLineNo">250</span> count += hrfs.getStoreFiles(colFamily.getName()).size();<a name="line.250"></a> -<span class="sourceLineNo">251</span> }<a name="line.251"></a> -<span class="sourceLineNo">252</span> ADMIN.compactRegion(mergedRegionInfo.getRegionName());<a name="line.252"></a> -<span class="sourceLineNo">253</span> // clean up the merged region store files<a name="line.253"></a> -<span class="sourceLineNo">254</span> // wait until merged region have reference file<a name="line.254"></a> -<span class="sourceLineNo">255</span> long timeout = System.currentTimeMillis() + waitTime;<a name="line.255"></a> -<span class="sourceLineNo">256</span> int newcount = 0;<a name="line.256"></a> -<span class="sourceLineNo">257</span> while (System.currentTimeMillis() < timeout) {<a name="line.257"></a> -<span class="sourceLineNo">258</span> for(HColumnDescriptor colFamily : columnFamilies) {<a name="line.258"></a> -<span class="sourceLineNo">259</span> newcount += hrfs.getStoreFiles(colFamily.getName()).size();<a name="line.259"></a> -<span class="sourceLineNo">260</span> }<a name="line.260"></a> -<span class="sourceLineNo">261</span> if(newcount > count) {<a name="line.261"></a> -<span class="sourceLineNo">262</span> break;<a name="line.262"></a> -<span class="sourceLineNo">263</span> }<a name="line.263"></a> -<span class="sourceLineNo">264</span> Thread.sleep(50);<a name="line.264"></a> -<span class="sourceLineNo">265</span> }<a name="line.265"></a> -<span class="sourceLineNo">266</span> assertTrue(newcount > count);<a name="line.266"></a> -<span class="sourceLineNo">267</span> List<RegionServerThread> regionServerThreads = TEST_UTIL.getHBaseCluster()<a name="line.267"></a> -<span class="sourceLineNo">268</span> .getRegionServerThreads();<a name="line.268"></a> -<span class="sourceLineNo">269</span> for (RegionServerThread rs : regionServerThreads) {<a name="line.269"></a> -<span class="sourceLineNo">270</span> CompactedHFilesDischarger cleaner = new CompactedHFilesDischarger(100, null,<a name="line.270"></a> -<span class="sourceLineNo">271</span> rs.getRegionServer(), false);<a name="line.271"></a> -<span class="sourceLineNo">272</span> cleaner.chore();<a name="line.272"></a> -<span class="sourceLineNo">273</span> Thread.sleep(1000);<a name="line.273"></a> -<span class="sourceLineNo">274</span> }<a name="line.274"></a> -<span class="sourceLineNo">275</span> while (System.currentTimeMillis() < timeout) {<a name="line.275"></a> -<span class="sourceLineNo">276</span> int newcount1 = 0;<a name="line.276"></a> -<span class="sourceLineNo">277</span> for(HColumnDescriptor colFamily : columnFamilies) {<a name="line.277"></a> -<span class="sourceLineNo">278</span> newcount1 += hrfs.getStoreFiles(colFamily.getName()).size();<a name="line.278"></a> -<span class="sourceLineNo">279</span> }<a name="line.279"></a> -<span class="sourceLineNo">280</span> if(newcount1 <= 1) {<a name="line.280"></a> -<span class="sourceLineNo">281</span> break;<a name="line.281"></a> -<span class="sourceLineNo">282</span> }<a name="line.282"></a> -<span class="sourceLineNo">283</span> Thread.sleep(50);<a name="line.283"></a> -<span class="sourceLineNo">284</span> }<a name="line.284"></a> -<span class="sourceLineNo">285</span> // run CatalogJanitor to clean merge references in hbase:meta and archive the<a name="line.285"></a> -<span class="sourceLineNo">286</span> // files of merging regions<a name="line.286"></a> -<span class="sourceLineNo">287</span> int cleaned = 0;<a name="line.287"></a> -<span class="sourceLineNo">288</span> while (cleaned == 0) {<a name="line.288"></a> -<span class="sourceLineNo">289</span> cleaned = ADMIN.runCatalogScan();<a name="line.289"></a> -<span class="sourceLineNo">290</span> LOG.debug("catalog janitor returned " + cleaned);<a name="line.290"></a> -<span class="sourceLineNo">291</span> Thread.sleep(50);<a name="line.291"></a> -<span class="sourceLineNo">292</span> }<a name="line.292"></a> -<span class="sourceLineNo">293</span> assertFalse(regionAdir.toString(), fs.exists(regionAdir));<a name="line.293"></a> -<span class="sourceLineNo">294</span> assertFalse(regionBdir.toString(), fs.exists(regionBdir));<a name="line.294"></a> -<span class="sourceLineNo">295</span> assertTrue(cleaned > 0);<a name="line.295"></a> -<span class="sourceLineNo">296</span><a name="line.296"></a> -<span class="sourceLineNo">297</span> mergedRegionResult = MetaTableAccessor.getRegionResult(<a name="line.297"></a> -<span class="sourceLineNo">298</span> TEST_UTIL.getConnection(), mergedRegionInfo.getRegionName());<a name="line.298"></a> -<span class="sourceLineNo">299</span> assertFalse(mergedRegionResult.getValue(HConstants.CATALOG_FAMILY,<a name="line.299"></a> -<span class="sourceLineNo">300</span> HConstants.MERGEA_QUALIFIER) != null);<a name="line.300"></a> -<span class="sourceLineNo">301</span> assertFalse(mergedRegionResult.getValue(HConstants.CATALOG_FAMILY,<a name="line.301"></a> -<span class="sourceLineNo">302</span> HConstants.MERGEB_QUALIFIER) != null);<a name="line.302"></a> -<span class="sourceLineNo">303</span><a name="line.303"></a> -<span class="sourceLineNo">304</span> } finally {<a name="line.304"></a> -<span class="sourceLineNo">305</span> ADMIN.enableCatalogJanitor(true);<a name="line.305"></a> -<span class="sourceLineNo">306</span> }<a name="line.306"></a> -<span class="sourceLineNo">307</span> }<a name="line.307"></a> -<span class="sourceLineNo">308</span><a name="line.308"></a> -<span class="sourceLineNo">309</span> /**<a name="line.309"></a> -<span class="sourceLineNo">310</span> * This test tests 1, merging region not online;<a name="line.310"></a> -<span class="sourceLineNo">311</span> * 2, merging same two regions; 3, merging unknown regions.<a name="line.311"></a> -<span class="sourceLineNo">312</span> * They are in one test case so that we don't have to create<a name="line.312"></a> -<span class="sourceLineNo">313</span> * many tables, and these tests are simple.<a name="line.313"></a> -<span class="sourceLineNo">314</span> */<a name="line.314"></a> -<span class="sourceLineNo">315</span> @Test<a name="line.315"></a> -<span class="sourceLineNo">316</span> public void testMerge() throws Exception {<a name="line.316"></a> -<span class="sourceLineNo">317</span> LOG.info("Starting testMerge");<a name="line.317"></a> -<span class="sourceLineNo">318</span> final TableName tableName = TableName.valueOf("testMerge");<a name="line.318"></a> -<span class="sourceLineNo">319</span><a name="line.319"></a> -<span class="sourceLineNo">320</span> try {<a name="line.320"></a> -<span class="sourceLineNo">321</span> // Create table and load data.<a name="line.321"></a> -<span class="sourceLineNo">322</span> Table table = createTableAndLoadData(MASTER, tableName);<a name="line.322"></a> -<span class="sourceLineNo">323</span> RegionStates regionStates = MASTER.getAssignmentManager().getRegionStates();<a name="line.323"></a> -<span class="sourceLineNo">324</span> List<HRegionInfo> regions = regionStates.getRegionsOfTable(tableName);<a name="line.324"></a> -<span class="sourceLineNo">325</span> // Fake offline one region<a name="line.325"></a> -<span class="sourceLineNo">326</span> HRegionInfo a = regions.get(0);<a name="line.326"></a> -<span class="sourceLineNo">327</span> HRegionInfo b = regions.get(1);<a name="line.327"></a> -<span class="sourceLineNo">328</span> regionStates.regionOffline(a);<a name="line.328"></a> -<span class="sourceLineNo">329</span> try {<a name="line.329"></a> -<span class="sourceLineNo">330</span> // Merge offline region. Region a is offline here<a name="line.330"></a> -<span class="sourceLineNo">331</span> ADMIN.mergeRegions(a.getEncodedNameAsBytes(), b.getEncodedNameAsBytes(), false);<a name="line.331"></a> -<span class="sourceLineNo">332</span> fail("Offline regions should not be able to merge");<a name="line.332"></a> -<span class="sourceLineNo">333</span> } catch (IOException ie) {<a name="line.333"></a> -<span class="sourceLineNo">334</span> System.out.println(ie);<a name="line.334"></a> -<span class="sourceLineNo">335</span> assertTrue("Exception should mention regions not online",<a name="line.335"></a> -<span class="sourceLineNo">336</span> StringUtils.stringifyException(ie).contains("regions not online")<a name="line.336"></a> -<span class="sourceLineNo">337</span> && ie instanceof MergeRegionException);<a name="line.337"></a> -<span class="sourceLineNo">338</span> }<a name="line.338"></a> -<span class="sourceLineNo">339</span> try {<a name="line.339"></a> -<span class="sourceLineNo">340</span> // Merge the same region: b and b.<a name="line.340"></a> -<span class="sourceLineNo">341</span> ADMIN.mergeRegions(b.getEncodedNameAsBytes(), b.getEncodedNameAsBytes(), true);<a name="line.341"></a> -<span class="sourceLineNo">342</span> fail("A region should not be able to merge with itself, even forcifully");<a name="line.342"></a> -<span class="sourceLineNo">343</span> } catch (IOException ie) {<a name="line.343"></a> -<span class="sourceLineNo">344</span> assertTrue("Exception should mention regions not online",<a name="line.344"></a> -<span class="sourceLineNo">345</span> StringUtils.stringifyException(ie).contains("region to itself")<a name="line.345"></a> -<span class="sourceLineNo">346</span> && ie instanceof MergeRegionException);<a name="line.346"></a> -<span class="sourceLineNo">347</span> }<a name="line.347"></a> -<span class="sourceLineNo">348</span> try {<a name="line.348"></a> -<span class="sourceLineNo">349</span> // Merge unknown regions<a name="line.349"></a> -<span class="sourceLineNo">350</span> ADMIN.mergeRegions(Bytes.toBytes("-f1"), Bytes.toBytes("-f2"), true);<a name="line.350"></a> -<span class="sourceLineNo">351</span> fail("Unknown region could not be merged");<a name="line.351"></a> -<span class="sourceLineNo">352</span> } catch (IOException ie) {<a name="line.352"></a> -<span class="sourceLineNo">353</span> assertTrue("UnknownRegionException should be thrown",<a name="line.353"></a> -<span class="sourceLineNo">354</span> ie instanceof UnknownRegionException);<a name="line.354"></a> -<span class="sourceLineNo">355</span> }<a name="line.355"></a> -<span class="sourceLineNo">356</span> table.close();<a name="line.356"></a> -<span class="sourceLineNo">357</span> } finally {<a name="line.357"></a> -<span class="sourceLineNo">358</span> TEST_UTIL.deleteTable(tableName);<a name="line.358"></a> -<span class="sourceLineNo">359</span> }<a name="line.359"></a> -<span class="sourceLineNo">360</span> }<a name="line.360"></a> -<span class="sourceLineNo">361</span><a name="line.361"></a> -<span class="sourceLineNo">362</span> @Test<a name="line.362"></a> -<span class="sourceLineNo">363</span> public void testMergeWithReplicas() throws Exception {<a name="line.363"></a> -<span class="sourceLineNo">364</span> final TableName tableName = TableName.valueOf("testMergeWithReplicas");<a name="line.364"></a> -<span class="sourceLineNo">365</span> // Create table and load data.<a name="line.365"></a> -<span class="sourceLineNo">366</span> createTableAndLoadData(MASTER, tableName, 5, 2);<a name="line.366"></a> -<span class="sourceLineNo">367</span> List<Pair<HRegionInfo, ServerName>> initialRegionToServers =<a name="line.367"></a> -<span class="sourceLineNo">368</span> MetaTableAccessor.getTableRegionsAndLocations(<a name="line.368"></a> -<span class="sourceLineNo">369</span> TEST_UTIL.getConnection(), tableName);<a name="line.369"></a> -<span class="sourceLineNo">370</span> // Merge 1st and 2nd region<a name="line.370"></a> -<span class="sourceLineNo">371</span> PairOfSameType<HRegionInfo> mergedRegions = mergeRegionsAndVerifyRegionNum(MASTER, tableName,<a name="line.371"></a> -<span class="sourceLineNo">372</span> 0, 2, 5 * 2 - 2);<a name="line.372"></a> -<span class="sourceLineNo">373</span> List<Pair<HRegionInfo, ServerName>> currentRegionToServers =<a name="line.373"></a> -<span class="sourceLineNo">374</span> MetaTableAccessor.getTableRegionsAndLocations(<a name="line.374"></a> -<span class="sourceLineNo">375</span> TEST_UTIL.getConnection(), tableName);<a name="line.375"></a> -<span class="sourceLineNo">376</span> List<HRegionInfo> initialRegions = new ArrayList<HRegionInfo>();<a name="line.376"></a> -<span class="sourceLineNo">377</span> for (Pair<HRegionInfo, ServerName> p : initialRegionToServers) {<a name="line.377"></a> -<span class="sourceLineNo">378</span> initialRegions.add(p.getFirst());<a name="line.378"></a> -<span class="sourceLineNo">379</span> }<a name="line.379"></a> -<span class="sourceLineNo">380</span> List<HRegionInfo> currentRegions = new ArrayList<HRegionInfo>();<a name="line.380"></a> -<span class="sourceLineNo">381</span> for (Pair<HRegionInfo, ServerName> p : currentRegionToServers) {<a name="line.381"></a> -<span class="sourceLineNo">382</span> currentRegions.add(p.getFirst());<a name="line.382"></a> -<span class="sourceLineNo">383</span> }<a name="line.383"></a> -<span class="sourceLineNo">384</span> assertTrue(initialRegions.contains(mergedRegions.getFirst())); //this is the first region<a name="line.384"></a> -<span class="sourceLineNo">385</span> assertTrue(initialRegions.contains(RegionReplicaUtil.getRegionInfoForReplica(<a name="line.385"></a> -<span class="sourceLineNo">386</span> mergedRegions.getFirst(), 1))); //this is the replica of the first region<a name="line.386"></a> -<span class="sourceLineNo">387</span> assertTrue(initialRegions.contains(mergedRegions.getSecond())); //this is the second region<a name="line.387"></a> -<span class="sourceLineNo">388</span> assertTrue(initialRegions.contains(RegionReplicaUtil.getRegionInfoForReplica(<a name="line.388"></a> -<span class="sourceLineNo">389</span> mergedRegions.getSecond(), 1))); //this is the replica of the second region<a name="line.389"></a> -<span class="sourceLineNo">390</span> assertTrue(!initialRegions.contains(currentRegions.get(0))); //this is the new region<a name="line.390"></a> -<span class="sourceLineNo">391</span> assertTrue(!initialRegions.contains(RegionReplicaUtil.getRegionInfoForReplica(<a name="line.391"></a> -<span class="sourceLineNo">392</span> currentRegions.get(0), 1))); //replica of the new region<a name="line.392"></a> -<span class="sourceLineNo">393</span> assertTrue(currentRegions.contains(RegionReplicaUtil.getRegionInfoForReplica(<a name="line.393"></a> -<span class="sourceLineNo">394</span> currentRegions.get(0), 1))); //replica of the new region<a name="line.394"></a> -<span class="sourceLineNo">395</span> assertTrue(!currentRegions.contains(RegionReplicaUtil.getRegionInfoForReplica(<a name="line.395"></a> -<span class="sourceLineNo">396</span> mergedRegions.getFirst(), 1))); //replica of the merged region<a name="line.396"></a> -<span class="sourceLineNo">397</span> assertTrue(!currentRegions.contains(RegionReplicaUtil.getRegionInfoForReplica(<a name="line.397"></a> -<span class="sourceLineNo">398</span> mergedRegions.getSecond(), 1))); //replica of the merged region<a name="line.398"></a> -<span class="sourceLineNo">399</span> }<a name="line.399"></a> -<span class="sourceLineNo">400</span><a name="line.400"></a> -<span class="sourceLineNo">401</span> private PairOfSameType<HRegionInfo> mergeRegionsAndVerifyRegionNum(<a name="line.401"></a> -<span class="sourceLineNo">402</span> HMaster master, TableName tablename,<a name="line.402"></a> -<span class="sourceLineNo">403</span> int regionAnum, int regionBnum, int expectedRegionNum) throws Exception {<a name="line.403"></a> -<span class="sourceLineNo">404</span> PairOfSameType<HRegionInfo> mergedRegions =<a name="line.404"></a> -<span class="sourceLineNo">405</span> requestMergeRegion(master, tablename, regionAnum, regionBnum);<a name="line.405"></a> -<span class="sourceLineNo">406</span> waitAndVerifyRegionNum(master, tablename, expectedRegionNum);<a name="line.406"></a> -<span class="sourceLineNo">407</span> return mergedRegions;<a name="line.407"></a> -<span class="sourceLineNo">408</span> }<a name="line.408"></a> -<span class="sourceLineNo">409</span><a name="line.409"></a> -<span class="sourceLineNo">410</span> private PairOfSameType<HRegionInfo> requestMergeRegion(<a name="line.410"></a> -<span class="sourceLineNo">411</span> HMaster master, TableName tablename,<a name="line.411"></a> -<span class="sourceLineNo">412</span> int regionAnum, int regionBnum) throws Exception {<a name="line.412"></a> -<span class="sourceLineNo">413</span> List<Pair<HRegionInfo, ServerName>> tableRegions = MetaTableAccessor<a name="line.413"></a> -<span class="sourceLineNo">414</span> .getTableRegionsAndLocations(<a name="line.414"></a> -<span class="sourceLineNo">415</span> TEST_UTIL.getConnection(), tablename);<a name="line.415"></a> -<span class="sourceLineNo">416</span> HRegionInfo regionA = tableRegions.get(regionAnum).getFirst();<a name="line.416"></a> -<span class="sourceLineNo">417</span> HRegionInfo regionB = tableRegions.get(regionBnum).getFirst();<a name="line.417"></a> -<span class="sourceLineNo">418</span> ADMIN.mergeRegions(<a name="line.418"></a> -<span class="sourceLineNo">419</span> regionA.getEncodedNameAsBytes(),<a name="line.419"></a> -<span class="sourceLineNo">420</span> regionB.getEncodedNameAsBytes(), false);<a name="line.420"></a> -<span class="sourceLineNo">421</span> return new PairOfSameType<HRegionInfo>(regionA, regionB);<a name="line.421"></a> -<span class="sourceLineNo">422</span> }<a name="line.422"></a> -<span class="sourceLineNo">423</span><a name="line.423"></a> -<span class="sourceLineNo">424</span> private void waitAndVerifyRegionNum(HMaster master, TableName tablename,<a name="line.424"></a> -<span class="sourceLineNo">425</span> int expectedRegionNum) throws Exception {<a name="line.425"></a> -<span class="sourceLineNo">426</span> List<Pair<HRegionInfo, ServerName>> tableRegionsInMeta;<a name="line.426"></a> -<span class="sourceLineNo">427</span> List<HRegionInfo> tableRegionsInMaster;<a name="line.427"></a> -<span class="sourceLineNo">428</span> long timeout = System.currentTimeMillis() + waitTime;<a name="line.428"></a> -<span class="sourceLineNo">429</span> while (System.currentTimeMillis() < timeout) {<a name="line.429"></a> -<span class="sourceLineNo">430</span> tableRegionsInMeta = MetaTableAccessor.getTableRegionsAndLocations(<a name="line.430"></a> -<span class="sourceLineNo">431</span> TEST_UTIL.getConnection(), tablename);<a name="line.431"></a> -<span class="sourceLineNo">432</span> tableRegionsInMaster = master.getAssignmentManager().getRegionStates()<a name="line.432"></a> -<span class="sourceLineNo">433</span> .getRegionsOfTable(tablename);<a name="line.433"></a> -<span class="sourceLineNo">434</span> if (tableRegionsInMeta.size() == expectedRegionNum<a name="line.434"></a> -<span class="sourceLineNo">435</span> && tableRegionsInMaster.size() == expectedRegionNum) {<a name="line.435"></a> -<span class="sourceLineNo">436</span> break;<a name="line.436"></a> -<span class="sourceLineNo">437</span> }<a name="line.437"></a> -<span class="sourceLineNo">438</span> Thread.sleep(250);<a name="line.438"></a> -<span class="sourceLineNo">439</span> }<a name="line.439"></a> -<span class="sourceLineNo">440</span><a name="line.440"></a> -<span class="sourceLineNo">441</span> tableRegionsInMeta = MetaTableAccessor.getTableRegionsAndLocations(<a name="line.441"></a> -<span class="sourceLineNo">442</span> TEST_UTIL.getConnection(), tablename);<a name="line.442"></a> -<span class="sourceLineNo">443</span> LOG.info("Regions after merge:" + Joiner.on(',').join(tableRegionsInMeta));<a name="line.443"></a> -<span class="sourceLineNo">444</span> assertEquals(expectedRegionNum, tableRegionsInMeta.size());<a name="line.444"></a> -<span class="sourceLineNo">445</span> }<a name="line.445"></a> -<span class="sourceLineNo">446</span><a name="line.446"></a> -<span class="sourceLineNo">447</span> private Table createTableAndLoadData(HMaster master, TableName tablename)<a name="line.447"></a> -<span class="sourceLineNo">448</span> throws Exception {<a name="line.448"></a> -<span class="sourceLineNo">449</span> return createTableAndLoadData(master, tablename, INITIAL_REGION_NUM, 1);<a name="line.449"></a> -<span class="sourceLineNo">450</span> }<a name="line.450"></a> -<span class="sourceLineNo">451</span><a name="line.451"></a> -<span class="sourceLineNo">452</span> private Table createTableAndLoadData(HMaster master, TableName tablename,<a name="line.452"></a> -<span class="sourceLineNo">453</span> int numRegions, int replication) throws Exception {<a name="line.453"></a> -<span class="sourceLineNo">454</span> assertTrue("ROWSIZE must > numregions:" + numRegions, ROWSIZE > numRegions);<a name="line.454"></a> -<span class="sourceLineNo">455</span> byte[][] splitRows = new byte[numRegions - 1][];<a name="line.455"></a> -<span class="sourceLineNo">456</span> for (int i = 0; i < splitRows.length; i++) {<a name="line.456"></a> -<span class="sourceLineNo">457</span> splitRows[i] = ROWS[(i + 1) * ROWSIZE / numRegions];<a name="line.457"></a> -<span class="sourceLineNo">458</span> }<a name="line.458"></a> -<span class="sourceLineNo">459</span><a name="line.459"></a> -<span class="sourceLineNo">460</span> Table table = TEST_UTIL.createTable(tablename, FAMILYNAME, splitRows);<a name="line.460"></a> -<span class="sourceLineNo">461</span> if (replication > 1) {<a name="line.461"></a> -<span class="sourceLineNo">462</span> HBaseTestingUtility.setReplicas(ADMIN, tablename, replication);<a name="line.462"></a> -<span class="sourceLineNo">463</span> }<a name="line.463"></a> -<span class="sourceLineNo">464</span> loadData(table);<a name="line.464"></a> -<span class="sourceLineNo">465</span> verifyRowCount(table, ROWSIZE);<a name="line.465"></a> -<span class="sourceLineNo">466</span><a name="line.466"></a> -<span class="sourceLineNo">467</span> // sleep here is an ugly hack to allow region transitions to finish<a name="line.467"></a> -<span class="sourceLineNo">468</span> long timeout = System.currentTimeMillis() + waitTime;<a name="line.468"></a> -<span class="sourceLineNo">469</span> List<Pair<HRegionInfo, ServerName>> tableRegions;<a name="line.469"></a> -<span class="sourceLineNo">470</span> while (System.currentTimeMillis() < timeout) {<a name="line.470"></a> -<span class="sourceLineNo">471</span> tableRegions = MetaTableAccessor.getTableRegionsAndLocations(<a name="line.471"></a> -<span class="sourceLineNo">472</span> TEST_UTIL.getConnection(), tablename);<a name="line.472"></a> -<span class="sourceLineNo">473</span> if (tableRegions.size() == numRegions * replication)<a name="line.473"></a> -<span class="sourceLineNo">474</span> break;<a name="line.474"></a> -<span class="sourceLineNo">475</span> Thread.sleep(250);<a name="line.475"></a> -<span class="sourceLineNo">476</span> }<a name="line.476"></a> -<span class="sourceLineNo">477</span><a name="line.477"></a> -<span class="sourceLineNo">478</span> tableRegions = MetaTableAccessor.getTableRegionsAndLocations(<a name="line.478"></a> -<span class="sourceLineNo">479</span> TEST_UTIL.getConnection(), tablename);<a name="line.479"></a> -<span class="sourceLineNo">480</span> LOG.info("Regions after load: " + Joiner.on(',').join(tableRegions));<a name="line.480"></a> -<span class="sourceLineNo">481</span> assertEquals(numRegions * replication, tableRegions.size());<a name="line.481"></a> -<span class="sourceLineNo">482</span> return table;<a name="line.482"></a> -<span class="sourceLineNo">483</span> }<a name="line.483"></a> -<span class="sourceLineNo">484</span><a name="line.484"></a> -<span class="sourceLineNo">485</span> private static byte[][] makeN(byte[] base, int n) {<a name="line.485"></a> -<span class="sourceLineNo">486</span> byte[][] ret = new byte[n][];<a name="line.486"></a> -<span class="sourceLineNo">487</span> for (int i = 0; i < n; i++) {<a name="line.487"></a> -<span class="sourceLineNo">488</span> ret[i] = Bytes.add(base, Bytes.toBytes(String.format("%04d", i)));<a name="line.488"></a> -<span class="sourceLineNo">489</span> }<a name="line.489"></a> -<span class="sourceLineNo">490</span> return ret;<a name="line.490"></a> -<span class="sourceLineNo">491</span> }<a name="line.491"></a> -<span class="sourceLineNo">492</span><a name="line.492"></a> -<span class="sourceLineNo">493</span> private void loadData(Table table) throws IOException {<a name="line.493"></a> -<span class="sourceLineNo">494</span> for (int i = 0; i < ROWSIZE; i++) {<a name="line.494"></a> -<span class="sourceLineNo">495</span> Put put = new Put(ROWS[i]);<a name="line.495"></a> -<span class="sourceLineNo">496</span> put.addColumn(FAMILYNAME, QUALIFIER, Bytes.toBytes(i));<a name="line.496"></a> -<span class="sourceLineNo">497</span> table.put(put);<a name="line.497"></a> -<span class="sourceLineNo">498</span> }<a name="line.498"></a> -<span class="sourceLineNo">499</span> }<a name="line.499"></a> -<span class="sourceLineNo">500</span><a name="line.500"></a> -<span class="sourceLineNo">501</span> private void verifyRowCount(Table table, int expectedRegionNum)<a name="line.501"></a> -<span class="sourceLineNo">502</span> throws IOException {<a name="line.502"></a> -<span class="sourceLineNo">503</span> ResultScanner scanner = table.getScanner(new Scan());<a name="line.503"></a> -<span class="sourceLineNo">504</span> int rowCount = 0;<a name="line.504"></a> -<span class="sourceLineNo">505</span> while (scanner.next() != null) {<a name="line.505"></a> -<span class="sourceLineNo">506</span> rowCount++;<a name="line.506"></a> -<span class="sourceLineNo">507</span> }<a name="line.507"></a> -<span class="sourceLineNo">508</span> assertEquals(expectedRegionNum, rowCount);<a name="line.508"></a> -<span class="sourceLineNo">509</span> scanner.close();<a name="line.509"></a> -<span class="sourceLineNo">510</span> }<a name="line.510"></a> -<span class="sourceLineNo">511</span><a name="line.511"></a> -<span class="sourceLineNo">512</span> // Make it public so that JVMClusterUtil can access it.<a name="line.512"></a> -<span class="sourceLineNo">513</span> public static class MyMaster extends HMaster {<a name="line.513"></a> -<span class="sourceLineNo">514</span> public MyMaster(Configuration conf, CoordinatedStateManager cp)<a name="line.514"></a> -<span class="sourceLineNo">515</span> throws IOException, KeeperException,<a name="line.515"></a> -<span class="sourceLineNo">516</span> InterruptedException {<a name="line.516"></a> -<span class="sourceLineNo">517</span> super(conf, cp);<a name="line.517"></a> -<span class="sourceLineNo">518</span> }<a name="line.518"></a> -<span class="sourceLineNo">519</span><a name="line.519"></a> -<span class="sourceLineNo">520</span> @Override<a name="line.520"></a> -<span class="sourceLineNo">521</span> protected RSRpcServices createRpcServices() throws IOException {<a name="line.521"></a> -<span class="sourceLineNo">522</span> return new MyMasterRpcServices(this);<a name="line.522"></a> +<span class="sourceLineNo">151</span> verifyRowCount(table, ROWSIZE);<a name="line.151"></a> +<span class="sourceLineNo">152</span><a name="line.152"></a> +<span class="sourceLineNo">153</span> // Randomly choose one of the two merged regions<a name="line.153"></a> +<span class="sourceLineNo">154</span> HRegionInfo hri = RandomUtils.nextBoolean() ?<a name="line.154"></a> +<span class="sourceLineNo">155</span> mergedRegions.getFirst() : mergedRegions.getSecond();<a name="line.155"></a> +<span class="sourceLineNo">156</span> MiniHBaseCluster cluster = TEST_UTIL.getHBaseCluster();<a name="line.156"></a> +<span class="sourceLineNo">157</span> AssignmentManager am = cluster.getMaster().getAssignmentManager();<a name="line.157"></a> +<span class="sourceLineNo">158</span> RegionStates regionStates = am.getRegionStates();<a name="line.158"></a> +<span class="sourceLineNo">159</span> long start = EnvironmentEdgeManager.currentTime();<a name="line.159"></a> +<span class="sourceLineNo">160</span> while (!regionStates.isRegionInState(hri, State.MERGED)) {<a name="line.160"></a> +<span class="sourceLineNo">161</span> assertFalse("Timed out in waiting one merged region to be in state MERGED",<a name="line.161"></a> +<span class="sourceLineNo">162</span> EnvironmentEdgeManager.currentTime() - start > 60000);<a name="line.162"></a> +<span class="sourceLineNo">163</span> Thread.sleep(500);<a name="line.163"></a> +<span class="sourceLineNo">164</span> }<a name="line.164"></a> +<span class="sourceLineNo">165</span><a name="line.165"></a> +<span class="sourceLineNo">166</span> // We should not be able to assign it again<a name="line.166"></a> +<span class="sourceLineNo">167</span> am.assign(hri, true);<a name="line.167"></a> +<span class="sourceLineNo">168</span> assertFalse("Merged region can't be assigned",<a name="line.168"></a> +<span class="sourceLineNo">169</span> regionStates.isRegionInTransition(hri));<a name="line.169"></a> +<span class="sourceLineNo">170</span> assertTrue(regionStates.isRegionInState(hri, State.MERGED));<a name="line.170"></a> +<span class="sourceLineNo">171</span><a name="line.171"></a> +<span class="sourceLineNo">172</span> // We should not be able to unassign it either<a name="line.172"></a> +<span class="sourceLineNo">173</span> am.unassign(hri, null);<a name="line.173"></a> +<span class="sourceLineNo">174</span> assertFalse("Merged region can't be unassigned",<a name="line.174"></a> +<span class="sourceLineNo">175</span> regionStates.isRegionInTransition(hri));<a name="line.175"></a> +<span class="sourceLineNo">176</span> assertTrue(regionStates.isRegionInState(hri, State.MERGED));<a name="line.176"></a> +<span class="sourceLineNo">177</span><a name="line.177"></a> +<span class="sourceLineNo">178</span> table.close();<a name="line.178"></a> +<span class="sourceLineNo">179</span> }<a name="line.179"></a> +<span class="sourceLineNo">180</span><a name="line.180"></a> +<span class="sourceLineNo">181</span> /**<a name="line.181"></a> +<span class="sourceLineNo">182</span> * Not really restarting the master. Simulate it by clear of new region<a name="line.182"></a> +<span class="sourceLineNo">183</span> * state since it is not persisted, will be lost after master restarts.<a name="line.183"></a> +<span class="sourceLineNo">184</span> */<a name="line.184"></a> +<span class="sourceLineNo">185</span> @Test<a name="line.185"></a> +<span class="sourceLineNo">186</span> public void testMergeAndRestartingMaster() throws Exception {<a name="line.186"></a> +<span class="sourceLineNo">187</span> final TableName tableName = TableName.valueOf("testMergeAndRestartingMaster");<a name="line.187"></a> +<span class="sourceLineNo">188</span><a name="line.188"></a> +<span class="sourceLineNo">189</span> // Create table and load data.<a name="line.189"></a> +<span class="sourceLineNo">190</span> Table table = createTableAndLoadData(MASTER, tableName);<a name="line.190"></a> +<span class="sourceLineNo">191</span><a name="line.191"></a> +<span class="sourceLineNo">192</span> try {<a name="line.192"></a> +<span class="sourceLineNo">193</span> MyMasterRpcServices.enabled.set(true);<a name="line.193"></a> +<span class="sourceLineNo">194</span><a name="line.194"></a> +<span class="sourceLineNo">195</span> // Merge 1st and 2nd region<a name="line.195"></a> +<span class="sourceLineNo">196</span> mergeRegionsAndVerifyRegionNum(MASTER, tableName, 0, 1, INITIAL_REGION_NUM - 1);<a name="line.196"></a> +<span class="sourceLineNo">197</span> } finally {<a name="line.197"></a> +<span class="sourceLineNo">198</span> MyMasterRpcServices.enabled.set(false);<a name="line.198"></a> +<span class="sourceLineNo">199</span> }<a name="line.199"></a> +<span class="sourceLineNo">200</span><a name="line.200"></a> +<span class="sourceLineNo">201</span> table.close();<a name="line.201"></a> +<span class="sourceLineNo">202</span> }<a name="line.202"></a> +<span class="sourceLineNo">203</span><a name="line.203"></a> +<span class="sourceLineNo">204</span> @Test<a name="line.204"></a> +<span class="sourceLineNo">205</span> public void testCleanMergeReference() throws Exception {<a name="line.205"></a> +<span class="sourceLineNo">206</span> LOG.info("Starting testCleanMergeReference");<a name="line.206"></a> +<span class="sourceLineNo">207</span> ADMIN.enableCatalogJanitor(false);<a name="line.207"></a> +<span class="sourceLineNo">208</span> try {<a name="line.208"></a> +<span class="sourceLineNo">209</span> final TableName tableName =<a name="line.209"></a> +<span class="sourceLineNo">210</span> TableName.valueOf("testCleanMergeReference");<a name="line.210"></a> +<span class="sourceLineNo">211</span> // Create table and load data.<a name="line.211"></a> +<span class="sourceLineNo">212</span> Table table = createTableAndLoadData(MASTER, tableName);<a name="line.212"></a> +<span class="sourceLineNo">213</span> // Merge 1st and 2nd region<a name="line.213"></a> +<span class="sourceLineNo">214</span> mergeRegionsAndVerifyRegionNum(MASTER, tableName, 0, 1,<a name="line.214"></a> +<span class="sourceLineNo">215</span> INITIAL_REGION_NUM - 1);<a name="line.215"></a> +<span class="sourceLineNo">216</span> verifyRowCount(table, ROWSIZE);<a name="line.216"></a> +<span class="sourceLineNo">217</span> table.close();<a name="line.217"></a> +<span class="sourceLineNo">218</span><a name="line.218"></a> +<span class="sourceLineNo">219</span> List<Pair<HRegionInfo, ServerName>> tableRegions = MetaTableAccessor<a name="line.219"></a> +<span class="sourceLineNo">220</span> .getTableRegionsAndLocations(MASTER.getConnection(), tableName);<a name="line.220"></a> +<span class="sourceLineNo">221</span> HRegionInfo mergedRegionInfo = tableRegions.get(0).getFirst();<a name="line.221"></a> +<span class="sourceLineNo">222</span> HTableDescriptor tableDescriptor = MASTER.getTableDescriptors().get(<a name="line.222"></a> +<span class="sourceLineNo">223</span> tableName);<a name="line.223"></a> +<span class="sourceLineNo">224</span> Result mergedRegionResult = MetaTableAccessor.getRegionResult(<a name="line.224"></a> +<span class="sourceLineNo">225</span> MASTER.getConnection(), mergedRegionInfo.getRegionName());<a name="line.225"></a> +<span class="sourceLineNo">226</span><a name="line.226"></a> +<span class="sourceLineNo">227</span> // contains merge reference in META<a name="line.227"></a> +<span class="sourceLineNo">228</span> assertTrue(mergedRegionResult.getValue(HConstants.CATALOG_FAMILY,<a name="line.228"></a> +<span class="sourceLineNo">229</span> HConstants.MERGEA_QUALIFIER) != null);<a name="line.229"></a> +<span class="sourceLineNo">230</span> assertTrue(mergedRegionResult.getValue(HConstants.CATALOG_FAMILY,<a name="line.230"></a> +<span class="sourceLineNo">231</span> HConstants.MERGEB_QUALIFIER) != null);<a name="line.231"></a> +<span class="sourceLineNo">232</span><a name="line.232"></a> +<span class="sourceLineNo">233</span> // merging regions' directory are in the file system all the same<a name="line.233"></a> +<span class="sourceLineNo">234</span> PairOfSameType<HRegionInfo> p = MetaTableAccessor.getMergeRegions(mergedRegionResult);<a name="line.234"></a> +<span class="sourceLineNo">235</span> HRegionInfo regionA = p.getFirst();<a name="line.235"></a> +<span class="sourceLineNo">236</span> HRegionInfo regionB = p.getSecond();<a name="line.236"></a> +<span class="sourceLineNo">237</span> FileSystem fs = MASTER.getMasterFileSystem().getFileSystem();<a name="line.237"></a> +<span class="sourceLineNo">238</span> Path rootDir = MASTER.getMasterFileSystem().getRootDir();<a name="line.238"></a> +<span class="sourceLineNo">239</span><a name="line.239"></a> +<span class="sourceLineNo">240</span> Path tabledir = FSUtils.getTableDir(rootDir, mergedRegionInfo.getTable());<a name="line.240"></a> +<span class="sourceLineNo">241</span> Path regionAdir = new Path(tabledir, regionA.getEncodedName());<a name="line.241"></a> +<span class="sourceLineNo">242</span> Path regionBdir = new Path(tabledir, regionB.getEncodedName());<a name="line.242"></a> +<span class="sourceLineNo">243</span> assertTrue(fs.exists(regionAdir));<a name="line.243"></a> +<span class="sourceLineNo">244</span> assertTrue(fs.exists(regionBdir));<a name="line.244"></a> +<span class="sourceLineNo">245</span><a name="line.245"></a> +<span class="sourceLineNo">246</span> HColumnDescriptor[] columnFamilies = tableDescriptor.getColumnFamilies();<a name="line.246"></a> +<span class="sourceLineNo">247</span> HRegionFileSystem hrfs = new HRegionFileSystem(<a name="line.247"></a> +<span class="sourceLineNo">248</span> TEST_UTIL.getConfiguration(), fs, tabledir, mergedRegionInfo);<a name="line.248"></a> +<span class="sourceLineNo">249</span> int count = 0;<a name="line.249"></a> +<span class="sourceLineNo">250</span> for(HColumnDescriptor colFamily : columnFamilies) {<a name="line.250"></a> +<span class="sourceLineNo">251</span> count += hrfs.getStoreFiles(colFamily.getName()).size();<a name="line.251"></a> +<span class="sourceLineNo">252</span> }<a name="line.252"></a> +<span class="sourceLineNo">253</span> ADMIN.compactRegion(mergedRegionInfo.getRegionName());<a name="line.253"></a> +<span class="sourceLineNo">254</span> // clean up the merged region store files<a name="line.254"></a> +<span class="sourceLineNo">255</span> // wait until merged region have reference file<a name="line.255"></a> +<span class="sourceLineNo">256</span> long timeout = System.currentTimeMillis() + waitTime;<a name="line.256"></a> +<span class="sourceLineNo">257</span> int newcount = 0;<a name="line.257"></a> +<span class="sourceLineNo">258</span> while (System.currentTimeMillis() < timeout) {<a name="line.258"></a> +<span class="sourceLineNo">259</span> for(HColumnDescriptor colFamily : columnFamilies) {<a name="line.259"></a> +<span class="sourceLineNo">260</span> newcount += hrfs.getStoreFiles(colFamily.getName()).size();<a name="line.260"></a> +<span class="sourceLineNo">261</span> }<a name="line.261"></a> +<span class="sourceLineNo">262</span> if(newcount > count) {<a name="line.262"></a> +<span class="sourceLineNo">263</span> break;<a name="line.263"></a> +<span class="sourceLineNo">264</span> }<a name="line.264"></a> +<span class="sourceLineNo">265</span> Thread.sleep(50);<a name="line.265"></a> +<span class="sourceLineNo">266</span> }<a name="line.266"></a> +<span class="sourceLineNo">267</span> assertTrue(newcount > count);<a name="line.267"></a> +<span class="sourceLineNo">268</span> List<RegionServerThread> regionServerThreads = TEST_UTIL.getHBaseCluster()<a name="line.268"></a> +<span class="sourceLineNo">269</span> .getRegionServerThreads();<a name="line.269"></a> +<span class="sourceLineNo">270</span> for (RegionServerThread rs : regionServerThreads) {<a name="line.270"></a> +<span class="sourceLineNo">271</span> CompactedHFilesDischarger cleaner = new CompactedHFilesDischarger(100, null,<a name="line.271"></a> +<span class="sourceLineNo">272</span> rs.getRegionServer(), false);<a name="line.272"></a> +<span class="sourceLineNo">273</span> cleaner.chore();<a name="line.273"></a> +<span class="sourceLineNo">274</span> Thread.sleep(1000);<a name="line.274"></a> +<span class="sourceLineNo">275</span> }<a name="line.275"></a> +<span class="sourceLineNo">276</span> while (System.currentTimeMillis() < timeout) {<a name="line.276"></a> +<span class="sourceLineNo">277</span> int newcount1 = 0;<a name="line.277"></a> +<span class="sourceLineNo">278</span> for(HColumnDescriptor colFamily : columnFamilies) {<a name="line.278"></a> +<span class="sourceLineNo">279</span> newcount1 += hrfs.getStoreFiles(colFamily.getName()).size();<a name="line.279"></a> +<span class="sourceLineNo">280</span> }<a name="line.280"></a> +<span class="sourceLineNo">281</span> if(newcount1 <= 1) {<a name="line.281"></a> +<span class="sourceLineNo">282</span> break;<a name="line.282"></a> +<span class="sourceLineNo">283</span> }<a name="line.283"></a> +<span class="sourceLineNo">284</span> Thread.sleep(50);<a name="line.284"></a> +<span class="sourceLineNo">285</span> }<a name="line.285"></a> +<span class="sourceLineNo">286</span> // run CatalogJanitor to clean merge references in hbase:meta and archive the<a name="line.286"></a> +<span class="sourceLineNo">287</span> // files of merging regions<a name="line.287"></a> +<span class="sourceLineNo">288</span> int cleaned = 0;<a name="line.288"></a> +<span class="sourceLineNo">289</span> while (cleaned == 0) {<a name="line.289"></a> +<span class="sourceLineNo">290</span> cleaned = ADMIN.runCatalogScan();<a name="line.290"></a> +<span class="sourceLineNo">291</span> LOG.debug("catalog janitor returned " + cleaned);<a name="line.291"></a> +<span class="sourceLineNo">292</span> Thread.sleep(50);<a name="line.292"></a> +<span class="sourceLineNo">293</span> }<a name="line.293"></a> +<span class="sourceLineNo">294</span> assertFalse(regionAdir.toString(), fs.exists(regionAdir));<a name="line.294"></a> +<span class="sourceLineNo">295</span> assertFalse(regionBdir.toString(), fs.exists(regionBdir));<a name="line.295"></a> +<span class="sourceLineNo">296</span> assertTrue(cleaned > 0);<a name="line.296"></a> +<span class="sourceLineNo">297</span><a name="line.297"></a> +<span class="sourceLineNo">298</span> mergedRegionResult = MetaTableAccessor.getRegionResult(<a name="line.298"></a> +<span class="sourceLineNo">299</span> TEST_UTIL.getConnection(), mergedRegionInfo.getRegionName());<a name="line.299"></a> +<span class="sourceLineNo">300</span> assertFalse(mergedRegionResult.getValue(HConstants.CATALOG_FAMILY,<a name="line.300"></a> +<span class="sourceLineNo">301</span> HConstants.MERGEA_QUALIFIER) != null);<a name="line.301"></a> +<span class="sourceLineNo">302</span> assertFalse(mergedRegionResult.getValue(HConstants.CATALOG_FAMILY,<a name="line.302"></a> +<span class="sourceLineNo">303</span> HConstants.MERGEB_QUALIFIER) != null);<a name="line.303"></a> +<span class="sourceLineNo">304</span><a name="line.304"></a> +<span class="sourceLineNo">305</span> } finally {<a name="line.305"></a> +<span class="sourceLineNo">306</span> ADMIN.enableCatalogJanitor(true);<a name="line.306"></a> +<span class="sourceLineNo">307</span> }<a name="line.307"></a> +<span class="sourceLineNo">308</span> }<a name="line.308"></a> +<span class="sourceLineNo">309</span><a name="line.309"></a> +<span class="sourceLineNo">310</span> /**<a name="line.310"></a> +<span class="sourceLineNo">311</span> * This test tests 1, merging region not online;<a name="line.311"></a> +<span class="sourceLineNo">312</span> * 2, merging same two regions; 3, merging unknown regions.<a name="line.312"></a> +<span class="sourceLineNo">313</span> * They are in one test case so that we don't have to create<a name="line.313"></a> +<span class="sourceLineNo">314</span> * many tables, and these tests are simple.<a name="line.314"></a> +<span class="sourceLineNo">315</span> */<a name="line.315"></a> +<span class="sourceLineNo">316</span> @Test<a name="line.316"></a> +<span class="sourceLineNo">317</span> public void testMerge() throws Exception {<a name="line.317"></a> +<span class="sourceLineNo">318</span> LOG.info("Starting testMerge");<a name="line.318"></a> +<span class="sourceLineNo">319</span> final TableName tableName = TableName.valueOf("testMerge");<a name="line.319"></a> +<span class="sourceLineNo">320</span><a name="line.320"></a> +<span class="sourceLineNo">321</span> try {<a name="line.321"></a> +<span class="sourceLineNo">322</span> // Create table and load data.<a name="line.322"></a> +<span class="sourceLineNo">323</span> Table table = createTableAndLoadData(MASTER, tableName);<a name="line.323"></a> +<span class="sourceLineNo">324</span> RegionStates regionStates = MASTER.getAssignmentManager().getRegionStates();<a name="line.324"></a> +<span class="sourceLineNo">325</span> List<HRegionInfo> regions = regionStates.getRegionsOfTable(tableName);<a name="line.325"></a> +<span class="sourceLineNo">326</span> // Fake offline one region<a name="line.326"></a> +<span class="sourceLineNo">327</span> HRegionInfo a = regions.get(0);<a name="line.327"></a> +<span class="sourceLineNo">328</span> HRegionInfo b = regions.get(1);<a name="line.328"></a> +<span class="sourceLineNo">329</span> regionStates.regionOffline(a);<a name="line.329"></a> +<span class="sourceLineNo">330</span> try {<a name="line.330"></a> +<span class="sourceLineNo">331</span> // Merge offline region. Region a is offline here<a name="line.331"></a> +<span class="sourceLineNo">332</span> ADMIN.mergeRegions(a.getEncodedNameAsBytes(), b.getEncodedNameAsBytes(), false);<a name="line.332"></a> +<span class="sourceLineNo">333</span> fail("Offline regions should not be able to merge");<a name="line.333"></a> +<span class="sourceLineNo">334</span> } catch (IOException ie) {<a name="line.334"></a> +<span class="sourceLineNo">335</span> System.out.println(ie);<a name="line.335"></a> +<span class="sourceLineNo">336</span> assertTrue("Exception should mention regions not online",<a name="line.336"></a> +<span class="sourceLineNo">337</span> StringUtils.stringifyException(ie).contains("regions not online")<a name="line.337"></a> +<span class="sourceLineNo">338</span> && ie instanceof MergeRegionException);<a name="line.338"></a> +<span class="sourceLineNo">339</span> }<a name="line.339"></a> +<span class="sourceLineNo">340</span> try {<a name="line.340"></a> +<span class="sourceLineNo">341</span> // Merge the same region: b and b.<a name="line.341"></a> +<span class="sourceLineNo">342</span> ADMIN.mergeRegions(b.getEncodedNameAsBytes(), b.getEncodedNameAsBytes(), true);<a name="line.342"></a> +<span class="sourceLineNo">343</span> fail("A region should not be able to merge with itself, even forcifully");<a name="line.343"></a> +<span class="sourceLineNo">344</span> } catch (IOException ie) {<a name="line.344"></a> +<span class="sourceLineNo">345</span> assertTrue("Exception should mention regions not online",<a name="line.345"></a> +<span class="sourceLineNo">346</span> StringUtils.stringifyException(ie).contains("region to itself")<a name="line.346"></a> +<span class="sourceLineNo">347</span> && ie instanceof MergeRegionException);<a name="line.347"></a> +<span class="sourceLineNo">348</span> }<a name="line.348"></a> +<span class="sourceLineNo">349</span> try {<a name="line.349"></a> +<span class="sourceLineNo">350</span> // Merge unknown regions<a name="line.350"></a> +<span class="sourceLineNo">351</span> ADMIN.mergeRegions(Bytes.toBytes("-f1"), Bytes.toBytes("-f2"), true);<a name="line.351"></a> +<span class="sourceLineNo">352</span> fail("Unknown region could not be merged");<a name="line.352"></a> +<span class="sourceLineNo">353</span> } catch (IOException ie) {<a name="line.353"></a> +<span class="sourceLineNo">354</span> assertTrue("UnknownRegionException should be thrown",<a name="line.354"></a> +<span class="sourceLineNo">355</span> ie instanceof UnknownRegionException);<a name="line.355"></a> +<span class="sourceLineNo">356</span> }<a name="line.356"></a> +<span class="sourceLineNo">357</span> table.close();<a name="line.357"></a> +<span class="sourceLineNo">358</span> } finally {<a name="line.358"></a> +<span class="sourceLineNo">359</span> TEST_UTIL.deleteTable(tableName);<a name="line.359"></a> +<span class="sourceLineNo">360</span> }<a name="line.360"></a> +<span class="sourceLineNo">361</span> }<a name="line.361"></a> +<span class="sourceLineNo">362</span><a name="line.362"></a> +<span class="sourceLineNo">363</span> @Test<a name="line.363"></a> +<span class="sourceLineNo">364</span> public void testMergeWithReplicas() throws Exception {<a name="line.364"></a> +<span class="sourceLineNo">365</span> final TableName tableName = TableName.valueOf("testMergeWithReplicas");<a name="line.365"></a> +<span class="sourceLineNo">366</span> // Create table and load data.<a name="line.366"></a> +<span class="sourceLineNo">367</span> createTableAndLoadData(MASTER, tableName, 5, 2);<a name="line.367"></a> +<span class="sourceLineNo">368</span> List<Pair<HRegionInfo, ServerName>> initialRegionToServers =<a name="line.368"></a> +<span class="sourceLineNo">369</span> MetaTableAccessor.getTableRegionsAndLocations(<a name="line.369"></a> +<span class="sourceLineNo">370</span> TEST_UTIL.getConnection(), tableName);<a name="line.370"></a> +<span class="sourceLineNo">371</span> // Merge 1st and 2nd region<a name="line.371"></a> +<span class="sourceLineNo">372</span> PairOfSameType<HRegionInfo> mergedRegions = mergeRegionsAndVerifyRegionNum(MASTER, tableName,<a name="line.372"></a> +<span class="sourceLineNo">373</span> 0, 2, 5 * 2 - 2);<a name="line.373"></a> +<span class="sourceLineNo">374</span> List<Pair<HRegionInfo, ServerName>> currentRegionToServers =<a name="line.374"></a> +<span class="sourceLineNo">375</span> MetaTableAccessor.getTableRegionsAndLocations(<a name="line.375"></a> +<span class="sourceLineNo">376</span> TEST_UTIL.getConnection(), tableName);<a name="line.376"></a> +<span class="sourceLineNo">377</span> List<HRegionInfo> initialRegions = new ArrayList<HRegionInfo>();<a name="line.377"></a> +<span class="sourceLineNo">378</span> for (Pair<HRegionInfo, ServerName> p : initialRegionToServers) {<a name="line.378"></a> +<span class="sourceLineNo">379</span> initialRegions.add(p.getFirst());<a name="line.379"></a> +<span class="sourceLineNo">380</span> }<a name="line.380"></a> +<span class="sourceLineNo">381</span> List<HRegionInfo> currentRegions = new ArrayList<HRegionInfo>();<a name="line.381"></a> +<span class="sourceLineNo">382</span> for (Pair<HRegionInfo, ServerName> p : currentRegionToServers) {<a name="line.382"></a> +<span class="sourceLineNo">383</span> currentRegions.add(p.getFirst());<a name="line.383"></a> +<span class="sourceLineNo">384</span> }<a name="line.384"></a> +<span class="sourceLineNo">385</span> assertTrue(initialRegions.contains(mergedRegions.getFirst())); //this is the first region<a name="line.385"></a> +<span class="sourceLineNo">386</span> assertTrue(initialRegions.contains(RegionReplicaUtil.getRegionInfoForReplica(<a name="line.386"></a> +<span class="sourceLineNo">387</span> mergedRegions.getFirst(), 1))); //this is the replica of the first region<a name="line.387"></a> +<span class="sourceLineNo">388</span> assertTrue(initialRegions.contains(mergedRegions.getSecond())); //this is the second region<a name="line.388"></a> +<span class="sourceLineNo">389</span> assertTrue(initialRegions.contains(RegionReplicaUtil.getRegionInfoForReplica(<a name="line.389"></a> +<span class="sourceLineNo">390</span> mergedRegions.getSecond(), 1))); //this is the replica of the second region<a name="line.390"></a> +<span class="sourceLineNo">391</span> assertTrue(!initialRegions.contains(currentRegions.get(0))); //this is the new region<a name="line.391"></a> +<span class="sourceLineNo">392</span> assertTrue(!initialRegions.contains(RegionReplicaUtil.getRegionInfoForReplica(<a name="line.392"></a> +<span class="sourceLineNo">393</span> currentRegions.get(0), 1))); //replica of the new region<a name="line.393"></a> +<span class="sourceLineNo">394</span> assertTrue(currentRegions.contains(RegionReplicaUtil.getRegionInfoForReplica(<a name="line.394"></a> +<span class="sourceLineNo">395</span> currentRegions.get(0), 1))); //replica of the new region<a name="line.395"></a> +<span class="sourceLineNo">396</span> assertTrue(!currentRegions.contains(RegionReplicaUtil.getRegionInfoForReplica(<a name="line.396"></a> +<span class="sourceLineNo">397</span> mergedRegions.getFirst(), 1))); //replica of the merged region<a name="line.397"></a> +<span class="sourceLineNo">398</span> assertTrue(!currentRegions.contains(RegionReplicaUtil.getRegionInfoForReplica(<a name="line.398"></a> +<span class="sourceLineNo">399</span> mergedRegions.getSecond(), 1))); //replica of the merged region<a name="line.399"></a> +<span class="sourceLineNo">400</span> }<a name="line.400"></a> +<span class="sourceLineNo">401</span><a name="line.401"></a> +<span class="sourceLineNo">402</span> private PairOfSameType<HRegionInfo> mergeRegionsAndVerifyRegionNum(<a name="line.402"></a> +<span class="sourceLineNo">403</span> HMaster master, TableName tablename,<a name="line.403"></a> +<span class="sourceLineNo">404</span> int regionAnum, int regionBnum, int expectedRegionNum) throws Exception {<a name="line.404"></a> +<span class="sourceLineNo">405</span> PairOfSameType<HRegionInfo> mergedRegions =<a name="line.405"></a> +<span class="sourceLineNo">406</span> requestMergeRegion(master, tablename, regionAnum, regionBnum);<a name="line.406"></a> +<span class="sourceLineNo">407</span> waitAndVerifyRegionNum(master, tablename, expectedRegionNum);<a name="line.407"></a> +<span class="sourceLineNo">408</span> return mergedRegions;<a name="line.408"></a> +<span class="sourceLineNo">409</span> }<a name="line.409"></a> +<span class="sourceLineNo">410</span><a name="line.410"></a> +<span class="sourceLineNo">411</span> private PairOfSameType<HRegionInfo> requestMergeRegion(<a name="line.411"></a> +<span class="sourceLineNo">412</span> HMaster master, TableName tablename,<a name="line.412"></a> +<span class="sourceLineNo">413</span> int regionAnum, int regionBnum) throws Exception {<a name="line.413"></a> +<span class="sourceLineNo">414</span> List<Pair<HRegionInfo, ServerName>> tableRegions = MetaTableAccessor<a name="line.414"></a> +<span class="sourceLineNo">415</span> .getTableRegionsAndLocations(<a name="line.415"></a> +<span class="sourceLineNo">416</span> TEST_UTIL.getConnection(), tablename);<a name="line.416"></a> +<span class="sourceLineNo">417</span> HRegionInfo regionA = tableRegions.get(regionAnum).getFirst();<a name="line.417"></a> +<span class="sourceLineNo">418</span> HRegionInfo regionB = tableRegions.get(regionBnum).getFirst();<a name="line.418"></a> +<span class="sourceLineNo">419</span> ADMIN.mergeRegions(<a name="line.419"></a> +<span class="sourceLineNo">420</span> regionA.getEncodedNameAsBytes(),<a name="line.420"></a> +<span class="sourceLineNo">421</span> regionB.getEncodedNameAsBytes(), false);<a name="line.421"></a> +<span class="sourceLineNo">422</span> return new PairOfSameType<HRegionInfo>(regionA, regionB);<a name="line.422"></a> +<span class="sourceLineNo">423</span> }<a name="line.423"></a> +<span class="sourceLineNo">424</span><a name="line.424"></a> +<span class="sourceLineNo">425</span> private void waitAndVerifyRegionNum(HMaster master, TableName tablename,<a name="line.425"></a> +<span class="sourceLineNo">426</span> int expectedRegionNum) throws Exception {<a name="line.426"></a> +<span class="sourceLineNo">427</span> List<Pair<HRegionInfo, ServerName>> tableRegionsInMeta;<a name="line.427"></a> +<span class="sourceLineNo">428</span> List<HRegionInfo> tableRegionsInMaster;<a name="line.428"></a> +<span class="sourceLineNo">429</span> long timeout = System.currentTimeMillis() + waitTime;<a name="line.429"></a> +<span class="sourceLineNo">430</span> while (System.currentTimeMillis() < timeout) {<a name="line.430"></a> +<span class="sourceLineNo">431</span> tableRegionsInMeta = MetaTableAccessor.getTableRegionsAndLocations(<a name="line.431"></a> +<span class="sourceLineNo">432</span> TEST_UTIL.getConnection(), tablename);<a name="line.432"></a> +<span class="sourceLineNo">433</span> tableRegionsInMaster = master.getAssignmentManager().getRegionStates()<a name="line.433"></a> +<span class="sourceLineNo">434</span> .getRegionsOfTable(tablename);<a name="line.434"></a> +<span class="sourceLineNo">435</span> if (tableRegionsInMeta.size() == expectedRegionNum<a name="line.435"></a> +<span class="sourceLineNo">436</span> && tableRegionsInMaster.size() == expectedRegionNum) {<a name="line.436"></a> +<span class="sourceLineNo">437</span> break;<a name="line.437"></a> +<span class="sourceLineNo">438</span> }<a name="line.438"></a> +<span class="sourceLineNo">439</span> Thread.sleep(250);<a name="line.439"></a> +<span class="sourceLineNo">440</span> }<a name="line.440"></a> +<span class="sourceLineNo">441</span><a name="line.441"></a> +<span class="sourceLineNo">442</span> tableRegionsInMeta = MetaTableAccessor.getTableRegionsAndLocations(<a name="line.442"></a> +<span class="sourceLineNo">443</span> TEST_UTIL.getConnection(), tablename);<a name="line.443"></a> +<span class="sourceLineNo">444</span> LOG.info("Regions after merge:" + Joiner.on(',').join(tableRegionsInMeta));<a name="line.444"></a> +<span class="sourceLineNo">445</span> assertEquals(expectedRegionNum, tableRegionsInMeta.size());<a name="line.445"></a> +<span class="sourceLineNo">446</span> }<a name="line.446"></a> +<span class="sourceLineNo">447</span><a name="line.447"></a> +<span class="sourceLineNo">448</span> private Table createTableAndLoadData(HMaster master, TableName tablename)<a name="line.448"></a> +<span class="sourceLineNo">449</span> throws Exception {<a name="line.449"></a> +<span class="sourceLineNo">450</span> return createTableAndLoadData(master, tablename, INITIAL_REGION_NUM, 1);<a name="line.450"></a> +<span class="sourceLineNo">451</span> }<a name="line.451"></a> +<span class="sourceLineNo">452</span><a name="line.452"></a> +<span class="sourceLineNo">453</span> private Table createTableAndLoadData(HMaster master, TableName tablename,<a name="line.453"></a> +<span class="sourceLineNo">454</span> int numRegions, int replication) throws Exception {<a name="line.454"></a> +<span class="sourceLineNo">455</span> assertTrue("ROWSIZE must > numregions:" + numRegions, ROWSIZE > numRegions);<a name="line.455"></a> +<span class="sourceLineNo">456</span> byte[][] splitRows = new byte[numRegions - 1][];<a name="line.456"></a> +<span class="sourceLineNo">457</span> for (int i = 0; i < splitRows.length; i++) {<a name="line.457"></a> +<span class="sourceLineNo">458</span> splitRows[i] = ROWS[(i + 1) * ROWSIZE / numRegions];<a name="line.458"></a> +<span class="sourceLineNo">459</span> }<a name="line.459"></a> +<span class="sourceLineNo">460</span><a name="line.460"></a> +<span class="sourceLineNo">461</span> Table table = TEST_UTIL.createTable(tablename, FAMILYNAME, splitRows);<a name="line.461"></a> +<span class="sourceLineNo">462</span> LOG.info("Created " + table.getName());<a name="line.462"></a> +<span class="sourceLineNo">463</span> if (replication > 1) {<a name="line.463"></a> +<span class="sourceLineNo">464</span> HBaseTestingUtility.setReplicas(ADMIN, tablename, replication);<a name="line.464"></a> +<span class="sourceLineNo">465</span> LOG.info("Set replication of " + replication + " on " + table.getName());<a name="line.465"></a> +<span class="sourceLineNo">466</span> }<a name="line.466"></a> +<span class="sourceLineNo">467</span> loadData(table);<a name="line.467"></a> +<span class="sourceLineNo">468</span> LOG.info("Loaded " + table.getName());<a name="line.468"></a> +<span class="sourceLineNo">469</span> verifyRowCount(table, ROWSIZE);<a name="line.469"></a> +<span class="sourceLineNo">470</span> LOG.info("Verified " + table.getName());<a name="line.470"></a> +<span class="sourceLineNo">471</span><a name="line.471"></a> +<span class="sourceLineNo">472</span> // sleep here is an ugly hack to allow region transitions to finish<a name="line.472"></a> +<span class="sourceLineNo">473</span> long timeout = System.currentTimeMillis() + waitTime;<a name="line.473"></a> +<span class="sourceLineNo">474</span> List<Pair<HRegionInfo, ServerName>> tableRegions;<a name="line.474"></a> +<span class="sourceLineNo">475</span> while (System.currentTimeMillis() < timeout) {<a name="line.475"></a> +<span class="sourceLineNo">476</span> tableRegions = MetaTableAccessor.getTableRegionsAndLocations(<a name="line.476"></a> +<span class="sourceLineNo">477</span> TEST_UTIL.getConnection(), tablename);<a name="line.477"></a> +<span class="sourceLineNo">478</span> if (tableRegions.size() == numRegions * replication)<a name="line.478"></a> +<span class="sourceLineNo">479</span> break;<a name="line.479"></a> +<span class="sourceLineNo">480</span> Thread.sleep(250);<a name="line.480"></a> +<span class="sourceLineNo">481</span> }<a name="line.481"></a> +<span class="sourceLineNo">482</span> LOG.info("Getting regions of " + table.getName());<a name="line.482"></a> +<span class="sourceLineNo">483</span> tableRegions = MetaTableAccessor.getTableRegionsAndLocations(<a name="line.483"></a> +<span class="sourceLineNo">484</span> TEST_UTIL.getConnection(), tablename);<a name="line.484"></a> +<span class="sourceLineNo">485</span> LOG.info("Regions after load: " + Joiner.on(',').join(tableRegions));<a name="line.485"></a> +<span class="sourceLineNo">486</span> assertEquals(numRegions * replication, tableRegions.size());<a name="line.486"></a> +<span class="sourceLineNo">487</span> return table;<a name="line.487"></a> +<span class="sourceLineNo">488</span> }<a name="line.488"></a> +<span class="sourceLineNo">489</span><a name="line.489"></a> +<span class="sourceLineNo">490</span> private static byte[][] makeN(byte[] base, int n) {<a name="line.490"></a> +<span class="sourceLineNo">491</span> byte[][] ret = new byte[n][];<a name="line.491"></a> +<span class="sourceLineNo">492</span> for (int i = 0; i < n; i++) {<a name="line.492"></a> +<span class="sourceLineNo">493</span> ret[i] = Bytes.add(base, Bytes.toBytes(String.format("%04d", i)));<a name="line.493"></a> +<span class="sourceLineNo">494</span> }<a name="line.494"></a> +<span class="sourceLineNo">495</span> return ret;<a name="line.495"></a> +<span class="sourceLineNo">496</span> }<a name="line.496"></a> +<span class="sourceLineNo">497</span><a name="line.497"></a> +<span class="sourceLineNo">498</span> private void loadData(Table table) throws IOException {<a name="line.498"></a> +<span class="sourceLineNo">499</span> for (int i = 0; i < ROWSIZE; i++) {<a name="line.499"></a> +<span class="sourceLineNo">500</span> Put put = new Put(ROWS[i]);<a name="line.500"></a> +<span class="sourceLineNo">501</span> put.addColumn(FAMILY
<TRUNCATED>