http://git-wip-us.apache.org/repos/asf/hbase-site/blob/545640e1/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/CloneSnapshotProcedure.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/CloneSnapshotProcedure.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/CloneSnapshotProcedure.html index 054ecc3..2263672 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/CloneSnapshotProcedure.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/CloneSnapshotProcedure.html @@ -50,466 +50,495 @@ <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.master.RegionState;<a name="line.42"></a> <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.master.assignment.AssignmentManager;<a name="line.43"></a> <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.master.procedure.CreateTableProcedure.CreateHdfsRegions;<a name="line.44"></a> -<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.monitoring.MonitoredTask;<a name="line.45"></a> -<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.monitoring.TaskMonitor;<a name="line.46"></a> -<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer;<a name="line.47"></a> -<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.snapshot.ClientSnapshotDescriptionUtils;<a name="line.48"></a> -<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.snapshot.RestoreSnapshotException;<a name="line.49"></a> -<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.snapshot.RestoreSnapshotHelper;<a name="line.50"></a> -<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.snapshot.SnapshotDescriptionUtils;<a name="line.51"></a> -<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.snapshot.SnapshotManifest;<a name="line.52"></a> -<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.util.FSTableDescriptors;<a name="line.53"></a> -<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.54"></a> -<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.55"></a> -<span class="sourceLineNo">056</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.56"></a> -<span class="sourceLineNo">057</span>import org.slf4j.Logger;<a name="line.57"></a> -<span class="sourceLineNo">058</span>import org.slf4j.LoggerFactory;<a name="line.58"></a> -<span class="sourceLineNo">059</span>import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;<a name="line.59"></a> -<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.60"></a> -<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos;<a name="line.61"></a> -<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos;<a name="line.62"></a> -<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.CloneSnapshotState;<a name="line.63"></a> -<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription;<a name="line.64"></a> -<span class="sourceLineNo">065</span><a name="line.65"></a> -<span class="sourceLineNo">066</span>@InterfaceAudience.Private<a name="line.66"></a> -<span class="sourceLineNo">067</span>public class CloneSnapshotProcedure<a name="line.67"></a> -<span class="sourceLineNo">068</span> extends AbstractStateMachineTableProcedure<CloneSnapshotState> {<a name="line.68"></a> -<span class="sourceLineNo">069</span> private static final Logger LOG = LoggerFactory.getLogger(CloneSnapshotProcedure.class);<a name="line.69"></a> -<span class="sourceLineNo">070</span><a name="line.70"></a> -<span class="sourceLineNo">071</span> private TableDescriptor tableDescriptor;<a name="line.71"></a> -<span class="sourceLineNo">072</span> private SnapshotDescription snapshot;<a name="line.72"></a> -<span class="sourceLineNo">073</span> private boolean restoreAcl;<a name="line.73"></a> -<span class="sourceLineNo">074</span> private List<RegionInfo> newRegions = null;<a name="line.74"></a> -<span class="sourceLineNo">075</span> private Map<String, Pair<String, String> > parentsToChildrenPairMap = new HashMap<>();<a name="line.75"></a> -<span class="sourceLineNo">076</span><a name="line.76"></a> -<span class="sourceLineNo">077</span> // Monitor<a name="line.77"></a> -<span class="sourceLineNo">078</span> private MonitoredTask monitorStatus = null;<a name="line.78"></a> -<span class="sourceLineNo">079</span><a name="line.79"></a> -<span class="sourceLineNo">080</span> private Boolean traceEnabled = null;<a name="line.80"></a> -<span class="sourceLineNo">081</span><a name="line.81"></a> -<span class="sourceLineNo">082</span> /**<a name="line.82"></a> -<span class="sourceLineNo">083</span> * Constructor (for failover)<a name="line.83"></a> -<span class="sourceLineNo">084</span> */<a name="line.84"></a> -<span class="sourceLineNo">085</span> public CloneSnapshotProcedure() {<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> public CloneSnapshotProcedure(final MasterProcedureEnv env,<a name="line.88"></a> -<span class="sourceLineNo">089</span> final TableDescriptor tableDescriptor, final SnapshotDescription snapshot) {<a name="line.89"></a> -<span class="sourceLineNo">090</span> this(env, tableDescriptor, snapshot, false);<a name="line.90"></a> -<span class="sourceLineNo">091</span> }<a name="line.91"></a> -<span class="sourceLineNo">092</span><a name="line.92"></a> -<span class="sourceLineNo">093</span> /**<a name="line.93"></a> -<span class="sourceLineNo">094</span> * Constructor<a name="line.94"></a> -<span class="sourceLineNo">095</span> * @param env MasterProcedureEnv<a name="line.95"></a> -<span class="sourceLineNo">096</span> * @param tableDescriptor the table to operate on<a name="line.96"></a> -<span class="sourceLineNo">097</span> * @param snapshot snapshot to clone from<a name="line.97"></a> -<span class="sourceLineNo">098</span> */<a name="line.98"></a> -<span class="sourceLineNo">099</span> public CloneSnapshotProcedure(final MasterProcedureEnv env,<a name="line.99"></a> -<span class="sourceLineNo">100</span> final TableDescriptor tableDescriptor, final SnapshotDescription snapshot,<a name="line.100"></a> -<span class="sourceLineNo">101</span> final boolean restoreAcl) {<a name="line.101"></a> -<span class="sourceLineNo">102</span> super(env);<a name="line.102"></a> -<span class="sourceLineNo">103</span> this.tableDescriptor = tableDescriptor;<a name="line.103"></a> -<span class="sourceLineNo">104</span> this.snapshot = snapshot;<a name="line.104"></a> -<span class="sourceLineNo">105</span> this.restoreAcl = restoreAcl;<a name="line.105"></a> -<span class="sourceLineNo">106</span><a name="line.106"></a> -<span class="sourceLineNo">107</span> getMonitorStatus();<a name="line.107"></a> -<span class="sourceLineNo">108</span> }<a name="line.108"></a> -<span class="sourceLineNo">109</span><a name="line.109"></a> -<span class="sourceLineNo">110</span> /**<a name="line.110"></a> -<span class="sourceLineNo">111</span> * Set up monitor status if it is not created.<a name="line.111"></a> -<span class="sourceLineNo">112</span> */<a name="line.112"></a> -<span class="sourceLineNo">113</span> private MonitoredTask getMonitorStatus() {<a name="line.113"></a> -<span class="sourceLineNo">114</span> if (monitorStatus == null) {<a name="line.114"></a> -<span class="sourceLineNo">115</span> monitorStatus = TaskMonitor.get().createStatus("Cloning snapshot '" + snapshot.getName() +<a name="line.115"></a> -<span class="sourceLineNo">116</span> "' to table " + getTableName());<a name="line.116"></a> -<span class="sourceLineNo">117</span> }<a name="line.117"></a> -<span class="sourceLineNo">118</span> return monitorStatus;<a name="line.118"></a> -<span class="sourceLineNo">119</span> }<a name="line.119"></a> -<span class="sourceLineNo">120</span><a name="line.120"></a> -<span class="sourceLineNo">121</span> private void restoreSnapshotAcl(MasterProcedureEnv env) throws IOException {<a name="line.121"></a> -<span class="sourceLineNo">122</span> Configuration conf = env.getMasterServices().getConfiguration();<a name="line.122"></a> -<span class="sourceLineNo">123</span> if (restoreAcl && snapshot.hasUsersAndPermissions() && snapshot.getUsersAndPermissions() != null<a name="line.123"></a> -<span class="sourceLineNo">124</span> && SnapshotDescriptionUtils.isSecurityAvailable(conf)) {<a name="line.124"></a> -<span class="sourceLineNo">125</span> RestoreSnapshotHelper.restoreSnapshotAcl(snapshot, tableDescriptor.getTableName(), conf);<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><a name="line.128"></a> -<span class="sourceLineNo">129</span> @Override<a name="line.129"></a> -<span class="sourceLineNo">130</span> protected Flow executeFromState(final MasterProcedureEnv env, final CloneSnapshotState state)<a name="line.130"></a> -<span class="sourceLineNo">131</span> throws InterruptedException {<a name="line.131"></a> -<span class="sourceLineNo">132</span> if (isTraceEnabled()) {<a name="line.132"></a> -<span class="sourceLineNo">133</span> LOG.trace(this + " execute state=" + state);<a name="line.133"></a> -<span class="sourceLineNo">134</span> }<a name="line.134"></a> -<span class="sourceLineNo">135</span> try {<a name="line.135"></a> -<span class="sourceLineNo">136</span> switch (state) {<a name="line.136"></a> -<span class="sourceLineNo">137</span> case CLONE_SNAPSHOT_PRE_OPERATION:<a name="line.137"></a> -<span class="sourceLineNo">138</span> // Verify if we can clone the table<a name="line.138"></a> -<span class="sourceLineNo">139</span> prepareClone(env);<a name="line.139"></a> -<span class="sourceLineNo">140</span><a name="line.140"></a> -<span class="sourceLineNo">141</span> preCloneSnapshot(env);<a name="line.141"></a> -<span class="sourceLineNo">142</span> setNextState(CloneSnapshotState.CLONE_SNAPSHOT_WRITE_FS_LAYOUT);<a name="line.142"></a> -<span class="sourceLineNo">143</span> break;<a name="line.143"></a> -<span class="sourceLineNo">144</span> case CLONE_SNAPSHOT_WRITE_FS_LAYOUT:<a name="line.144"></a> -<span class="sourceLineNo">145</span> newRegions = createFilesystemLayout(env, tableDescriptor, newRegions);<a name="line.145"></a> -<span class="sourceLineNo">146</span> setNextState(CloneSnapshotState.CLONE_SNAPSHOT_ADD_TO_META);<a name="line.146"></a> -<span class="sourceLineNo">147</span> break;<a name="line.147"></a> -<span class="sourceLineNo">148</span> case CLONE_SNAPSHOT_ADD_TO_META:<a name="line.148"></a> -<span class="sourceLineNo">149</span> addRegionsToMeta(env);<a name="line.149"></a> -<span class="sourceLineNo">150</span> setNextState(CloneSnapshotState.CLONE_SNAPSHOT_ASSIGN_REGIONS);<a name="line.150"></a> -<span class="sourceLineNo">151</span> break;<a name="line.151"></a> -<span class="sourceLineNo">152</span> case CLONE_SNAPSHOT_ASSIGN_REGIONS:<a name="line.152"></a> -<span class="sourceLineNo">153</span> CreateTableProcedure.setEnablingState(env, getTableName());<a name="line.153"></a> -<span class="sourceLineNo">154</span><a name="line.154"></a> -<span class="sourceLineNo">155</span> // Separate newRegions to split regions and regions to assign<a name="line.155"></a> -<span class="sourceLineNo">156</span> List<RegionInfo> splitRegions = new ArrayList<>();<a name="line.156"></a> -<span class="sourceLineNo">157</span> List<RegionInfo> regionsToAssign = new ArrayList<>();<a name="line.157"></a> -<span class="sourceLineNo">158</span> newRegions.forEach(ri -> {<a name="line.158"></a> -<span class="sourceLineNo">159</span> if (ri.isOffline() && (ri.isSplit() || ri.isSplitParent())) {<a name="line.159"></a> -<span class="sourceLineNo">160</span> splitRegions.add(ri);<a name="line.160"></a> -<span class="sourceLineNo">161</span> } else {<a name="line.161"></a> -<span class="sourceLineNo">162</span> regionsToAssign.add(ri);<a name="line.162"></a> -<span class="sourceLineNo">163</span> }<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> // For split regions, add them to RegionStates<a name="line.166"></a> -<span class="sourceLineNo">167</span> AssignmentManager am = env.getAssignmentManager();<a name="line.167"></a> -<span class="sourceLineNo">168</span> splitRegions.forEach(ri -><a name="line.168"></a> -<span class="sourceLineNo">169</span> am.getRegionStates().updateRegionState(ri, RegionState.State.SPLIT)<a name="line.169"></a> -<span class="sourceLineNo">170</span> );<a name="line.170"></a> -<span class="sourceLineNo">171</span><a name="line.171"></a> -<span class="sourceLineNo">172</span> addChildProcedure(env.getAssignmentManager()<a name="line.172"></a> -<span class="sourceLineNo">173</span> .createRoundRobinAssignProcedures(regionsToAssign));<a name="line.173"></a> -<span class="sourceLineNo">174</span> setNextState(CloneSnapshotState.CLONE_SNAPSHOT_UPDATE_DESC_CACHE);<a name="line.174"></a> -<span class="sourceLineNo">175</span> break;<a name="line.175"></a> -<span class="sourceLineNo">176</span> case CLONE_SNAPSHOT_UPDATE_DESC_CACHE:<a name="line.176"></a> -<span class="sourceLineNo">177</span> CreateTableProcedure.setEnabledState(env, getTableName());<a name="line.177"></a> -<span class="sourceLineNo">178</span> CreateTableProcedure.updateTableDescCache(env, getTableName());<a name="line.178"></a> -<span class="sourceLineNo">179</span> setNextState(CloneSnapshotState.CLONE_SNAPHOST_RESTORE_ACL);<a name="line.179"></a> -<span class="sourceLineNo">180</span> break;<a name="line.180"></a> -<span class="sourceLineNo">181</span> case CLONE_SNAPHOST_RESTORE_ACL:<a name="line.181"></a> -<span class="sourceLineNo">182</span> restoreSnapshotAcl(env);<a name="line.182"></a> -<span class="sourceLineNo">183</span> setNextState(CloneSnapshotState.CLONE_SNAPSHOT_POST_OPERATION);<a name="line.183"></a> -<span class="sourceLineNo">184</span> break;<a name="line.184"></a> -<span class="sourceLineNo">185</span> case CLONE_SNAPSHOT_POST_OPERATION:<a name="line.185"></a> -<span class="sourceLineNo">186</span> postCloneSnapshot(env);<a name="line.186"></a> -<span class="sourceLineNo">187</span><a name="line.187"></a> -<span class="sourceLineNo">188</span> MetricsSnapshot metricsSnapshot = new MetricsSnapshot();<a name="line.188"></a> -<span class="sourceLineNo">189</span> metricsSnapshot.addSnapshotClone(<a name="line.189"></a> -<span class="sourceLineNo">190</span> getMonitorStatus().getCompletionTimestamp() - getMonitorStatus().getStartTime());<a name="line.190"></a> -<span class="sourceLineNo">191</span> getMonitorStatus().markComplete("Clone snapshot '"+ snapshot.getName() +"' completed!");<a name="line.191"></a> -<span class="sourceLineNo">192</span> return Flow.NO_MORE_STATE;<a name="line.192"></a> -<span class="sourceLineNo">193</span> default:<a name="line.193"></a> -<span class="sourceLineNo">194</span> throw new UnsupportedOperationException("unhandled state=" + state);<a name="line.194"></a> -<span class="sourceLineNo">195</span> }<a name="line.195"></a> -<span class="sourceLineNo">196</span> } catch (IOException e) {<a name="line.196"></a> -<span class="sourceLineNo">197</span> if (isRollbackSupported(state)) {<a name="line.197"></a> -<span class="sourceLineNo">198</span> setFailure("master-clone-snapshot", e);<a name="line.198"></a> -<span class="sourceLineNo">199</span> } else {<a name="line.199"></a> -<span class="sourceLineNo">200</span> LOG.warn("Retriable error trying to clone snapshot=" + snapshot.getName() +<a name="line.200"></a> -<span class="sourceLineNo">201</span> " to table=" + getTableName() + " state=" + state, e);<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> return Flow.HAS_MORE_STATE;<a name="line.204"></a> -<span class="sourceLineNo">205</span> }<a name="line.205"></a> -<span class="sourceLineNo">206</span><a name="line.206"></a> -<span class="sourceLineNo">207</span> @Override<a name="line.207"></a> -<span class="sourceLineNo">208</span> protected void rollbackState(final MasterProcedureEnv env, final CloneSnapshotState state)<a name="line.208"></a> -<span class="sourceLineNo">209</span> throws IOException {<a name="line.209"></a> -<span class="sourceLineNo">210</span> if (state == CloneSnapshotState.CLONE_SNAPSHOT_PRE_OPERATION) {<a name="line.210"></a> -<span class="sourceLineNo">211</span> DeleteTableProcedure.deleteTableStates(env, getTableName());<a name="line.211"></a> -<span class="sourceLineNo">212</span> // TODO-MAYBE: call the deleteTable coprocessor event?<a name="line.212"></a> -<span class="sourceLineNo">213</span> return;<a name="line.213"></a> -<span class="sourceLineNo">214</span> }<a name="line.214"></a> -<span class="sourceLineNo">215</span><a name="line.215"></a> -<span class="sourceLineNo">216</span> // The procedure doesn't have a rollback. The execution will succeed, at some point.<a name="line.216"></a> -<span class="sourceLineNo">217</span> throw new UnsupportedOperationException("unhandled state=" + state);<a name="line.217"></a> -<span class="sourceLineNo">218</span> }<a name="line.218"></a> -<span class="sourceLineNo">219</span><a name="line.219"></a> -<span class="sourceLineNo">220</span> @Override<a name="line.220"></a> -<span class="sourceLineNo">221</span> protected boolean isRollbackSupported(final CloneSnapshotState state) {<a name="line.221"></a> -<span class="sourceLineNo">222</span> switch (state) {<a name="line.222"></a> -<span class="sourceLineNo">223</span> case CLONE_SNAPSHOT_PRE_OPERATION:<a name="line.223"></a> -<span class="sourceLineNo">224</span> return true;<a name="line.224"></a> -<span class="sourceLineNo">225</span> default:<a name="line.225"></a> -<span class="sourceLineNo">226</span> return false;<a name="line.226"></a> -<span class="sourceLineNo">227</span> }<a name="line.227"></a> -<span class="sourceLineNo">228</span> }<a name="line.228"></a> -<span class="sourceLineNo">229</span><a name="line.229"></a> -<span class="sourceLineNo">230</span> @Override<a name="line.230"></a> -<span class="sourceLineNo">231</span> protected CloneSnapshotState getState(final int stateId) {<a name="line.231"></a> -<span class="sourceLineNo">232</span> return CloneSnapshotState.valueOf(stateId);<a name="line.232"></a> -<span class="sourceLineNo">233</span> }<a name="line.233"></a> -<span class="sourceLineNo">234</span><a name="line.234"></a> -<span class="sourceLineNo">235</span> @Override<a name="line.235"></a> -<span class="sourceLineNo">236</span> protected int getStateId(final CloneSnapshotState state) {<a name="line.236"></a> -<span class="sourceLineNo">237</span> return state.getNumber();<a name="line.237"></a> -<span class="sourceLineNo">238</span> }<a name="line.238"></a> -<span class="sourceLineNo">239</span><a name="line.239"></a> -<span class="sourceLineNo">240</span> @Override<a name="line.240"></a> -<span class="sourceLineNo">241</span> protected CloneSnapshotState getInitialState() {<a name="line.241"></a> -<span class="sourceLineNo">242</span> return CloneSnapshotState.CLONE_SNAPSHOT_PRE_OPERATION;<a name="line.242"></a> -<span class="sourceLineNo">243</span> }<a name="line.243"></a> -<span class="sourceLineNo">244</span><a name="line.244"></a> -<span class="sourceLineNo">245</span> @Override<a name="line.245"></a> -<span class="sourceLineNo">246</span> public TableName getTableName() {<a name="line.246"></a> -<span class="sourceLineNo">247</span> return tableDescriptor.getTableName();<a name="line.247"></a> -<span class="sourceLineNo">248</span> }<a name="line.248"></a> -<span class="sourceLineNo">249</span><a name="line.249"></a> -<span class="sourceLineNo">250</span> @Override<a name="line.250"></a> -<span class="sourceLineNo">251</span> public TableOperationType getTableOperationType() {<a name="line.251"></a> -<span class="sourceLineNo">252</span> return TableOperationType.CREATE; // Clone is creating a table<a name="line.252"></a> -<span class="sourceLineNo">253</span> }<a name="line.253"></a> -<span class="sourceLineNo">254</span><a name="line.254"></a> -<span class="sourceLineNo">255</span> @Override<a name="line.255"></a> -<span class="sourceLineNo">256</span> public void toStringClassDetails(StringBuilder sb) {<a name="line.256"></a> -<span class="sourceLineNo">257</span> sb.append(getClass().getSimpleName());<a name="line.257"></a> -<span class="sourceLineNo">258</span> sb.append(" (table=");<a name="line.258"></a> -<span class="sourceLineNo">259</span> sb.append(getTableName());<a name="line.259"></a> -<span class="sourceLineNo">260</span> sb.append(" snapshot=");<a name="line.260"></a> -<span class="sourceLineNo">261</span> sb.append(snapshot);<a name="line.261"></a> -<span class="sourceLineNo">262</span> sb.append(")");<a name="line.262"></a> -<span class="sourceLineNo">263</span> }<a name="line.263"></a> -<span class="sourceLineNo">264</span><a name="line.264"></a> -<span class="sourceLineNo">265</span> @Override<a name="line.265"></a> -<span class="sourceLineNo">266</span> protected void serializeStateData(ProcedureStateSerializer serializer)<a name="line.266"></a> -<span class="sourceLineNo">267</span> throws IOException {<a name="line.267"></a> -<span class="sourceLineNo">268</span> super.serializeStateData(serializer);<a name="line.268"></a> -<span class="sourceLineNo">269</span><a name="line.269"></a> -<span class="sourceLineNo">270</span> MasterProcedureProtos.CloneSnapshotStateData.Builder cloneSnapshotMsg =<a name="line.270"></a> -<span class="sourceLineNo">271</span> MasterProcedureProtos.CloneSnapshotStateData.newBuilder()<a name="line.271"></a> -<span class="sourceLineNo">272</span> .setUserInfo(MasterProcedureUtil.toProtoUserInfo(getUser()))<a name="line.272"></a> -<span class="sourceLineNo">273</span> .setSnapshot(this.snapshot)<a name="line.273"></a> -<span class="sourceLineNo">274</span> .setTableSchema(ProtobufUtil.toTableSchema(tableDescriptor));<a name="line.274"></a> -<span class="sourceLineNo">275</span> if (newRegions != null) {<a name="line.275"></a> -<span class="sourceLineNo">276</span> for (RegionInfo hri: newRegions) {<a name="line.276"></a> -<span class="sourceLineNo">277</span> cloneSnapshotMsg.addRegionInfo(ProtobufUtil.toRegionInfo(hri));<a name="line.277"></a> -<span class="sourceLineNo">278</span> }<a name="line.278"></a> -<span class="sourceLineNo">279</span> }<a name="line.279"></a> -<span class="sourceLineNo">280</span> if (!parentsToChildrenPairMap.isEmpty()) {<a name="line.280"></a> -<span class="sourceLineNo">281</span> final Iterator<Map.Entry<String, Pair<String, String>>> it =<a name="line.281"></a> -<span class="sourceLineNo">282</span> parentsToChildrenPairMap.entrySet().iterator();<a name="line.282"></a> -<span class="sourceLineNo">283</span> while (it.hasNext()) {<a name="line.283"></a> -<span class="sourceLineNo">284</span> final Map.Entry<String, Pair<String, String>> entry = it.next();<a name="line.284"></a> -<span class="sourceLineNo">285</span><a name="line.285"></a> -<span class="sourceLineNo">286</span> MasterProcedureProtos.RestoreParentToChildRegionsPair.Builder parentToChildrenPair =<a name="line.286"></a> -<span class="sourceLineNo">287</span> MasterProcedureProtos.RestoreParentToChildRegionsPair.newBuilder()<a name="line.287"></a> -<span class="sourceLineNo">288</span> .setParentRegionName(entry.getKey())<a name="line.288"></a> -<span class="sourceLineNo">289</span> .setChild1RegionName(entry.getValue().getFirst())<a name="line.289"></a> -<span class="sourceLineNo">290</span> .setChild2RegionName(entry.getValue().getSecond());<a name="line.290"></a> -<span class="sourceLineNo">291</span> cloneSnapshotMsg.addParentToChildRegionsPairList(parentToChildrenPair);<a name="line.291"></a> -<span class="sourceLineNo">292</span> }<a name="line.292"></a> -<span class="sourceLineNo">293</span> }<a name="line.293"></a> -<span class="sourceLineNo">294</span> serializer.serialize(cloneSnapshotMsg.build());<a name="line.294"></a> -<span class="sourceLineNo">295</span> }<a name="line.295"></a> -<span class="sourceLineNo">296</span><a name="line.296"></a> -<span class="sourceLineNo">297</span> @Override<a name="line.297"></a> -<span class="sourceLineNo">298</span> protected void deserializeStateData(ProcedureStateSerializer serializer)<a name="line.298"></a> -<span class="sourceLineNo">299</span> throws IOException {<a name="line.299"></a> -<span class="sourceLineNo">300</span> super.deserializeStateData(serializer);<a name="line.300"></a> -<span class="sourceLineNo">301</span><a name="line.301"></a> -<span class="sourceLineNo">302</span> MasterProcedureProtos.CloneSnapshotStateData cloneSnapshotMsg =<a name="line.302"></a> -<span class="sourceLineNo">303</span> serializer.deserialize(MasterProcedureProtos.CloneSnapshotStateData.class);<a name="line.303"></a> -<span class="sourceLineNo">304</span> setUser(MasterProcedureUtil.toUserInfo(cloneSnapshotMsg.getUserInfo()));<a name="line.304"></a> -<span class="sourceLineNo">305</span> snapshot = cloneSnapshotMsg.getSnapshot();<a name="line.305"></a> -<span class="sourceLineNo">306</span> tableDescriptor = ProtobufUtil.toTableDescriptor(cloneSnapshotMsg.getTableSchema());<a name="line.306"></a> -<span class="sourceLineNo">307</span> if (cloneSnapshotMsg.getRegionInfoCount() == 0) {<a name="line.307"></a> -<span class="sourceLineNo">308</span> newRegions = null;<a name="line.308"></a> -<span class="sourceLineNo">309</span> } else {<a name="line.309"></a> -<span class="sourceLineNo">310</span> newRegions = new ArrayList<>(cloneSnapshotMsg.getRegionInfoCount());<a name="line.310"></a> -<span class="sourceLineNo">311</span> for (HBaseProtos.RegionInfo hri: cloneSnapshotMsg.getRegionInfoList()) {<a name="line.311"></a> -<span class="sourceLineNo">312</span> newRegions.add(ProtobufUtil.toRegionInfo(hri));<a name="line.312"></a> -<span class="sourceLineNo">313</span> }<a name="line.313"></a> -<span class="sourceLineNo">314</span> }<a name="line.314"></a> -<span class="sourceLineNo">315</span> if (cloneSnapshotMsg.getParentToChildRegionsPairListCount() > 0) {<a name="line.315"></a> -<span class="sourceLineNo">316</span> parentsToChildrenPairMap = new HashMap<>();<a name="line.316"></a> -<span class="sourceLineNo">317</span> for (MasterProcedureProtos.RestoreParentToChildRegionsPair parentToChildrenPair:<a name="line.317"></a> -<span class="sourceLineNo">318</span> cloneSnapshotMsg.getParentToChildRegionsPairListList()) {<a name="line.318"></a> -<span class="sourceLineNo">319</span> parentsToChildrenPairMap.put(<a name="line.319"></a> -<span class="sourceLineNo">320</span> parentToChildrenPair.getParentRegionName(),<a name="line.320"></a> -<span class="sourceLineNo">321</span> new Pair<>(<a name="line.321"></a> -<span class="sourceLineNo">322</span> parentToChildrenPair.getChild1RegionName(),<a name="line.322"></a> -<span class="sourceLineNo">323</span> parentToChildrenPair.getChild2RegionName()));<a name="line.323"></a> -<span class="sourceLineNo">324</span> }<a name="line.324"></a> -<span class="sourceLineNo">325</span> }<a name="line.325"></a> -<span class="sourceLineNo">326</span> // Make sure that the monitor status is set up<a name="line.326"></a> -<span class="sourceLineNo">327</span> getMonitorStatus();<a name="line.327"></a> -<span class="sourceLineNo">328</span> }<a name="line.328"></a> -<span class="sourceLineNo">329</span><a name="line.329"></a> -<span class="sourceLineNo">330</span> /**<a name="line.330"></a> -<span class="sourceLineNo">331</span> * Action before any real action of cloning from snapshot.<a name="line.331"></a> -<span class="sourceLineNo">332</span> * @param env MasterProcedureEnv<a name="line.332"></a> -<span class="sourceLineNo">333</span> * @throws IOException<a name="line.333"></a> -<span class="sourceLineNo">334</span> */<a name="line.334"></a> -<span class="sourceLineNo">335</span> private void prepareClone(final MasterProcedureEnv env) throws IOException {<a name="line.335"></a> -<span class="sourceLineNo">336</span> final TableName tableName = getTableName();<a name="line.336"></a> -<span class="sourceLineNo">337</span> if (MetaTableAccessor.tableExists(env.getMasterServices().getConnection(), tableName)) {<a name="line.337"></a> -<span class="sourceLineNo">338</span> throw new TableExistsException(getTableName());<a name="line.338"></a> -<span class="sourceLineNo">339</span> }<a name="line.339"></a> -<span class="sourceLineNo">340</span> }<a name="line.340"></a> -<span class="sourceLineNo">341</span><a name="line.341"></a> -<span class="sourceLineNo">342</span> /**<a name="line.342"></a> -<span class="sourceLineNo">343</span> * Action before cloning from snapshot.<a name="line.343"></a> -<span class="sourceLineNo">344</span> * @param env MasterProcedureEnv<a name="line.344"></a> -<span class="sourceLineNo">345</span> * @throws IOException<a name="line.345"></a> -<span class="sourceLineNo">346</span> * @throws InterruptedException<a name="line.346"></a> -<span class="sourceLineNo">347</span> */<a name="line.347"></a> -<span class="sourceLineNo">348</span> private void preCloneSnapshot(final MasterProcedureEnv env)<a name="line.348"></a> -<span class="sourceLineNo">349</span> throws IOException, InterruptedException {<a name="line.349"></a> -<span class="sourceLineNo">350</span> if (!getTableName().isSystemTable()) {<a name="line.350"></a> -<span class="sourceLineNo">351</span> // Check and update namespace quota<a name="line.351"></a> -<span class="sourceLineNo">352</span> final MasterFileSystem mfs = env.getMasterServices().getMasterFileSystem();<a name="line.352"></a> -<span class="sourceLineNo">353</span><a name="line.353"></a> -<span class="sourceLineNo">354</span> SnapshotManifest manifest = SnapshotManifest.open(<a name="line.354"></a> -<span class="sourceLineNo">355</span> env.getMasterConfiguration(),<a name="line.355"></a> -<span class="sourceLineNo">356</span> mfs.getFileSystem(),<a name="line.356"></a> -<span class="sourceLineNo">357</span> SnapshotDescriptionUtils.getCompletedSnapshotDir(snapshot, mfs.getRootDir()),<a name="line.357"></a> -<span class="sourceLineNo">358</span> snapshot);<a name="line.358"></a> -<span class="sourceLineNo">359</span><a name="line.359"></a> -<span class="sourceLineNo">360</span> ProcedureSyncWait.getMasterQuotaManager(env)<a name="line.360"></a> -<span class="sourceLineNo">361</span> .checkNamespaceTableAndRegionQuota(getTableName(), manifest.getRegionManifestsMap().size());<a name="line.361"></a> -<span class="sourceLineNo">362</span> }<a name="line.362"></a> -<span class="sourceLineNo">363</span><a name="line.363"></a> -<span class="sourceLineNo">364</span> final MasterCoprocessorHost cpHost = env.getMasterCoprocessorHost();<a 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MasterProcedureEnv env)<a name="line.376"></a> -<span class="sourceLineNo">377</span> throws IOException, InterruptedException {<a name="line.377"></a> -<span class="sourceLineNo">378</span> final MasterCoprocessorHost cpHost = env.getMasterCoprocessorHost();<a name="line.378"></a> -<span class="sourceLineNo">379</span> if (cpHost != null) {<a name="line.379"></a> -<span class="sourceLineNo">380</span> final RegionInfo[] regions = (newRegions == null) ? null :<a name="line.380"></a> -<span class="sourceLineNo">381</span> newRegions.toArray(new RegionInfo[newRegions.size()]);<a name="line.381"></a> -<span class="sourceLineNo">382</span> cpHost.postCompletedCreateTableAction(tableDescriptor, regions, getUser());<a name="line.382"></a> -<span class="sourceLineNo">383</span> }<a name="line.383"></a> -<span class="sourceLineNo">384</span> }<a name="line.384"></a> -<span class="sourceLineNo">385</span><a name="line.385"></a> -<span class="sourceLineNo">386</span> /**<a name="line.386"></a> -<span class="sourceLineNo">387</span> * Create regions in file system.<a name="line.387"></a> -<span class="sourceLineNo">388</span> * @param env MasterProcedureEnv<a name="line.388"></a> -<span class="sourceLineNo">389</span> * @throws IOException<a name="line.389"></a> -<span class="sourceLineNo">390</span> */<a name="line.390"></a> -<span class="sourceLineNo">391</span> private List<RegionInfo> createFilesystemLayout(<a name="line.391"></a> -<span class="sourceLineNo">392</span> final MasterProcedureEnv env,<a name="line.392"></a> -<span class="sourceLineNo">393</span> final TableDescriptor tableDescriptor,<a name="line.393"></a> -<span class="sourceLineNo">394</span> final List<RegionInfo> newRegions) throws IOException {<a name="line.394"></a> -<span class="sourceLineNo">395</span> return createFsLayout(env, tableDescriptor, newRegions, new CreateHdfsRegions() {<a name="line.395"></a> -<span class="sourceLineNo">396</span> @Override<a name="line.396"></a> -<span class="sourceLineNo">397</span> public List<RegionInfo> createHdfsRegions(<a name="line.397"></a> -<span class="sourceLineNo">398</span> final MasterProcedureEnv env,<a name="line.398"></a> -<span class="sourceLineNo">399</span> final Path tableRootDir, final TableName tableName,<a name="line.399"></a> -<span class="sourceLineNo">400</span> final List<RegionInfo> newRegions) throws IOException {<a name="line.400"></a> -<span class="sourceLineNo">401</span><a name="line.401"></a> -<span class="sourceLineNo">402</span> final MasterFileSystem mfs = env.getMasterServices().getMasterFileSystem();<a name="line.402"></a> -<span class="sourceLineNo">403</span> final FileSystem fs = mfs.getFileSystem();<a name="line.403"></a> -<span class="sourceLineNo">404</span> final Path rootDir = mfs.getRootDir();<a name="line.404"></a> -<span class="sourceLineNo">405</span> final Configuration conf = env.getMasterConfiguration();<a name="line.405"></a> -<span class="sourceLineNo">406</span> final ForeignExceptionDispatcher monitorException = new ForeignExceptionDispatcher();<a name="line.406"></a> -<span class="sourceLineNo">407</span><a name="line.407"></a> -<span class="sourceLineNo">408</span> getMonitorStatus().setStatus("Clone snapshot - creating regions for table: " + tableName);<a name="line.408"></a> -<span class="sourceLineNo">409</span><a name="line.409"></a> -<span class="sourceLineNo">410</span> try {<a name="line.410"></a> -<span class="sourceLineNo">411</span> // 1. Execute the on-disk Clone<a name="line.411"></a> -<span class="sourceLineNo">412</span> Path snapshotDir = SnapshotDescriptionUtils.getCompletedSnapshotDir(snapshot, rootDir);<a name="line.412"></a> -<span class="sourceLineNo">413</span> SnapshotManifest manifest = SnapshotManifest.open(conf, fs, snapshotDir, snapshot);<a name="line.413"></a> -<span class="sourceLineNo">414</span> RestoreSnapshotHelper restoreHelper = new RestoreSnapshotHelper(<a name="line.414"></a> -<span class="sourceLineNo">415</span> conf, fs, manifest, tableDescriptor, tableRootDir, monitorException, monitorStatus);<a name="line.415"></a> -<span class="sourceLineNo">416</span> RestoreSnapshotHelper.RestoreMetaChanges metaChanges = restoreHelper.restoreHdfsRegions();<a name="line.416"></a> -<span class="sourceLineNo">417</span><a name="line.417"></a> -<span class="sourceLineNo">418</span> // Clone operation should not have stuff to restore or remove<a name="line.418"></a> -<span class="sourceLineNo">419</span> Preconditions.checkArgument(<a name="line.419"></a> -<span class="sourceLineNo">420</span> !metaChanges.hasRegionsToRestore(), "A clone should not have regions to restore");<a name="line.420"></a> -<span class="sourceLineNo">421</span> Preconditions.checkArgument(<a name="line.421"></a> -<span class="sourceLineNo">422</span> !metaChanges.hasRegionsToRemove(), "A clone should not have regions to remove");<a name="line.422"></a> -<span class="sourceLineNo">423</span><a name="line.423"></a> -<span class="sourceLineNo">424</span> // At this point the clone is complete. Next step is enabling the table.<a name="line.424"></a> -<span class="sourceLineNo">425</span> String msg =<a name="line.425"></a> -<span class="sourceLineNo">426</span> "Clone snapshot="+ snapshot.getName() +" on table=" + tableName + " completed!";<a name="line.426"></a> -<span class="sourceLineNo">427</span> LOG.info(msg);<a name="line.427"></a> -<span class="sourceLineNo">428</span> monitorStatus.setStatus(msg + " Waiting for table to be enabled...");<a name="line.428"></a> -<span class="sourceLineNo">429</span><a name="line.429"></a> -<span class="sourceLineNo">430</span> // 2. Let the next step to add the regions to meta<a name="line.430"></a> -<span class="sourceLineNo">431</span> return metaChanges.getRegionsToAdd();<a name="line.431"></a> -<span class="sourceLineNo">432</span> } catch (Exception e) {<a name="line.432"></a> -<span class="sourceLineNo">433</span> String msg = "clone snapshot=" + ClientSnapshotDescriptionUtils.toString(snapshot) +<a name="line.433"></a> -<span class="sourceLineNo">434</span> " failed because " + e.getMessage();<a name="line.434"></a> -<span class="sourceLineNo">435</span> LOG.error(msg, e);<a name="line.435"></a> -<span class="sourceLineNo">436</span> IOException rse = new RestoreSnapshotException(msg, e,<a name="line.436"></a> -<span class="sourceLineNo">437</span> ProtobufUtil.createSnapshotDesc(snapshot));<a name="line.437"></a> -<span class="sourceLineNo">438</span><a name="line.438"></a> -<span class="sourceLineNo">439</span> // these handlers aren't futures so we need to register the error here.<a name="line.439"></a> -<span class="sourceLineNo">440</span> monitorException.receive(new ForeignException("Master CloneSnapshotProcedure", rse));<a name="line.440"></a> -<span class="sourceLineNo">441</span> throw rse;<a name="line.441"></a> -<span class="sourceLineNo">442</span> }<a name="line.442"></a> -<span class="sourceLineNo">443</span> }<a name="line.443"></a> -<span class="sourceLineNo">444</span> });<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> /**<a name="line.447"></a> -<span class="sourceLineNo">448</span> * Create region layout in file system.<a name="line.448"></a> -<span class="sourceLineNo">449</span> * @param env MasterProcedureEnv<a name="line.449"></a> -<span class="sourceLineNo">450</span> * @throws IOException<a name="line.450"></a> -<span class="sourceLineNo">451</span> */<a name="line.451"></a> -<span class="sourceLineNo">452</span> private List<RegionInfo> createFsLayout(<a name="line.452"></a> -<span class="sourceLineNo">453</span> final MasterProcedureEnv env,<a name="line.453"></a> -<span class="sourceLineNo">454</span> final TableDescriptor tableDescriptor,<a name="line.454"></a> -<span class="sourceLineNo">455</span> List<RegionInfo> newRegions,<a name="line.455"></a> -<span class="sourceLineNo">456</span> final CreateHdfsRegions hdfsRegionHandler) throws IOException {<a name="line.456"></a> -<span class="sourceLineNo">457</span> final MasterFileSystem mfs = env.getMasterServices().getMasterFileSystem();<a name="line.457"></a> -<span class="sourceLineNo">458</span> final Path tempdir = mfs.getTempDir();<a name="line.458"></a> -<span class="sourceLineNo">459</span><a name="line.459"></a> -<span class="sourceLineNo">460</span> // 1. Create Table Descriptor<a name="line.460"></a> -<span class="sourceLineNo">461</span> // using a copy of descriptor, table will be created enabling first<a name="line.461"></a> -<span class="sourceLineNo">462</span> final Path tempTableDir = FSUtils.getTableDir(tempdir, tableDescriptor.getTableName());<a name="line.462"></a> -<span class="sourceLineNo">463</span> ((FSTableDescriptors)(env.getMasterServices().getTableDescriptors()))<a name="line.463"></a> -<span class="sourceLineNo">464</span> .createTableDescriptorForTableDirectory(tempTableDir,<a name="line.464"></a> -<span class="sourceLineNo">465</span> TableDescriptorBuilder.newBuilder(tableDescriptor).build(), false);<a name="line.465"></a> -<span class="sourceLineNo">466</span><a name="line.466"></a> -<span class="sourceLineNo">467</span> // 2. Create Regions<a name="line.467"></a> -<span class="sourceLineNo">468</span> newRegions = hdfsRegionHandler.createHdfsRegions(<a name="line.468"></a> -<span class="sourceLineNo">469</span> env, tempdir, tableDescriptor.getTableName(), newRegions);<a name="line.469"></a> -<span class="sourceLineNo">470</span><a name="line.470"></a> -<span class="sourceLineNo">471</span> // 3. Move Table temp directory to the hbase root location<a name="line.471"></a> -<span class="sourceLineNo">472</span> CreateTableProcedure.moveTempDirectoryToHBaseRoot(env, tableDescriptor, tempTableDir);<a name="line.472"></a> -<span class="sourceLineNo">473</span><a name="line.473"></a> -<span class="sourceLineNo">474</span> return newRegions;<a name="line.474"></a> -<span class="sourceLineNo">475</span> }<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> * Add regions to hbase:meta table.<a name="line.478"></a> -<span class="sourceLineNo">479</span> * @param env MasterProcedureEnv<a name="line.479"></a> -<span class="sourceLineNo">480</span> * @throws IOException<a name="line.480"></a> -<span class="sourceLineNo">481</span> */<a name="line.481"></a> -<span class="sourceLineNo">482</span> private void addRegionsToMeta(final MasterProcedureEnv env) throws IOException {<a name="line.482"></a> -<span class="sourceLineNo">483</span> newRegions = CreateTableProcedure.addTableToMeta(env, tableDescriptor, newRegions);<a name="line.483"></a> -<span class="sourceLineNo">484</span><a name="line.484"></a> -<span class="sourceLineNo">485</span> // TODO: parentsToChildrenPairMap is always empty, which makes updateMetaParentRegions()<a name="line.485"></a> -<span class="sourceLineNo">486</span> // a no-op. This part seems unnecessary. Figure out. - Appy 12/21/17<a name="line.486"></a> -<span class="sourceLineNo">487</span> RestoreSnapshotHelper.RestoreMetaChanges metaChanges =<a name="line.487"></a> -<span class="sourceLineNo">488</span> new RestoreSnapshotHelper.RestoreMetaChanges(<a name="line.488"></a> -<span class="sourceLineNo">489</span> tableDescriptor, parentsToChildrenPairMap);<a name="line.489"></a> -<span class="sourceLineNo">490</span> metaChanges.updateMetaParentRegions(env.getMasterServices().getConnection(), newRegions);<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> /**<a name="line.493"></a> -<span class="sourceLineNo">494</span> * The procedure could be restarted from a different machine. If the variable is null, we need to<a name="line.494"></a> -<span class="sourceLineNo">495</span> * retrieve it.<a name="line.495"></a> -<span class="sourceLineNo">496</span> * @return traceEnabled<a name="line.496"></a> -<span class="sourceLineNo">497</span> */<a name="line.497"></a> -<span class="sourceLineNo">498</span> private Boolean isTraceEnabled() {<a name="line.498"></a> -<span class="sourceLineNo">499</span> if (traceEnabled == null) {<a name="line.499"></a> -<span class="sourceLineNo">500</span> traceEnabled = LOG.isTraceEnabled();<a name="line.500"></a> -<span class="sourceLineNo">501</span> }<a name="line.501"></a> -<span class="sourceLineNo">502</span> return traceEnabled;<a name="line.502"></a> -<span class="sourceLineNo">503</span> }<a name="line.503"></a> -<span class="sourceLineNo">504</span>}<a name="line.504"></a> +<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.mob.MobUtils;<a name="line.45"></a> +<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.monitoring.MonitoredTask;<a name="line.46"></a> +<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.monitoring.TaskMonitor;<a name="line.47"></a> +<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer;<a name="line.48"></a> +<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.snapshot.ClientSnapshotDescriptionUtils;<a name="line.49"></a> +<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.snapshot.RestoreSnapshotException;<a name="line.50"></a> +<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.snapshot.RestoreSnapshotHelper;<a name="line.51"></a> +<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.snapshot.SnapshotDescriptionUtils;<a name="line.52"></a> +<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.snapshot.SnapshotManifest;<a name="line.53"></a> +<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.util.FSTableDescriptors;<a name="line.54"></a> +<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.55"></a> +<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.56"></a> +<span class="sourceLineNo">057</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.57"></a> +<span class="sourceLineNo">058</span>import org.slf4j.Logger;<a name="line.58"></a> +<span class="sourceLineNo">059</span>import org.slf4j.LoggerFactory;<a name="line.59"></a> +<span class="sourceLineNo">060</span>import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;<a name="line.60"></a> +<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.61"></a> +<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos;<a name="line.62"></a> +<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos;<a name="line.63"></a> +<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.CloneSnapshotState;<a name="line.64"></a> +<span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription;<a name="line.65"></a> +<span class="sourceLineNo">066</span><a name="line.66"></a> +<span class="sourceLineNo">067</span>@InterfaceAudience.Private<a name="line.67"></a> +<span class="sourceLineNo">068</span>public class CloneSnapshotProcedure<a name="line.68"></a> +<span class="sourceLineNo">069</span> extends AbstractStateMachineTableProcedure<CloneSnapshotState> {<a name="line.69"></a> +<span class="sourceLineNo">070</span> private static final Logger LOG = LoggerFactory.getLogger(CloneSnapshotProcedure.class);<a name="line.70"></a> +<span class="sourceLineNo">071</span><a name="line.71"></a> +<span class="sourceLineNo">072</span> private TableDescriptor tableDescriptor;<a name="line.72"></a> +<span class="sourceLineNo">073</span> private SnapshotDescription snapshot;<a name="line.73"></a> +<span class="sourceLineNo">074</span> private boolean restoreAcl;<a name="line.74"></a> +<span class="sourceLineNo">075</span> private List<RegionInfo> newRegions = null;<a name="line.75"></a> +<span class="sourceLineNo">076</span> private Map<String, Pair<String, String> > parentsToChildrenPairMap = new HashMap<>();<a name="line.76"></a> +<span class="sourceLineNo">077</span><a name="line.77"></a> +<span class="sourceLineNo">078</span> // Monitor<a name="line.78"></a> +<span class="sourceLineNo">079</span> private MonitoredTask monitorStatus = null;<a name="line.79"></a> +<span class="sourceLineNo">080</span><a name="line.80"></a> +<span class="sourceLineNo">081</span> private Boolean traceEnabled = null;<a name="line.81"></a> +<span class="sourceLineNo">082</span><a name="line.82"></a> +<span class="sourceLineNo">083</span> /**<a name="line.83"></a> +<span class="sourceLineNo">084</span> * Constructor (for failover)<a name="line.84"></a> +<span class="sourceLineNo">085</span> */<a name="line.85"></a> +<span class="sourceLineNo">086</span> public CloneSnapshotProcedure() {<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> public CloneSnapshotProcedure(final MasterProcedureEnv env,<a name="line.89"></a> +<span class="sourceLineNo">090</span> final TableDescriptor tableDescriptor, final SnapshotDescription snapshot) {<a name="line.90"></a> +<span class="sourceLineNo">091</span> this(env, tableDescriptor, snapshot, false);<a name="line.91"></a> +<span class="sourceLineNo">092</span> }<a name="line.92"></a> +<span class="sourceLineNo">093</span><a name="line.93"></a> +<span class="sourceLineNo">094</span> /**<a name="line.94"></a> +<span class="sourceLineNo">095</span> * Constructor<a name="line.95"></a> +<span class="sourceLineNo">096</span> * @param env MasterProcedureEnv<a name="line.96"></a> +<span class="sourceLineNo">097</span> * @param tableDescriptor the table to operate on<a name="line.97"></a> +<span class="sourceLineNo">098</span> * @param snapshot snapshot to clone from<a name="line.98"></a> +<span class="sourceLineNo">099</span> */<a name="line.99"></a> +<span class="sourceLineNo">100</span> public CloneSnapshotProcedure(final MasterProcedureEnv env,<a name="line.100"></a> +<span class="sourceLineNo">101</span> final TableDescriptor tableDescriptor, final SnapshotDescription snapshot,<a name="line.101"></a> +<span class="sourceLineNo">102</span> final boolean restoreAcl) {<a name="line.102"></a> +<span class="sourceLineNo">103</span> super(env);<a name="line.103"></a> +<span class="sourceLineNo">104</span> this.tableDescriptor = tableDescriptor;<a name="line.104"></a> +<span class="sourceLineNo">105</span> this.snapshot = snapshot;<a name="line.105"></a> +<span class="sourceLineNo">106</span> this.restoreAcl = restoreAcl;<a name="line.106"></a> +<span class="sourceLineNo">107</span><a name="line.107"></a> +<span class="sourceLineNo">108</span> getMonitorStatus();<a name="line.108"></a> +<span class="sourceLineNo">109</span> }<a name="line.109"></a> +<span class="sourceLineNo">110</span><a name="line.110"></a> +<span class="sourceLineNo">111</span> /**<a name="line.111"></a> +<span class="sourceLineNo">112</span> * Set up monitor status if it is not created.<a name="line.112"></a> +<span class="sourceLineNo">113</span> */<a name="line.113"></a> +<span class="sourceLineNo">114</span> private MonitoredTask getMonitorStatus() {<a name="line.114"></a> +<span class="sourceLineNo">115</span> if (monitorStatus == null) {<a name="line.115"></a> +<span class="sourceLineNo">116</span> monitorStatus = TaskMonitor.get().createStatus("Cloning snapshot '" + snapshot.getName() +<a name="line.116"></a> +<span class="sourceLineNo">117</span> "' to table " + getTableName());<a name="line.117"></a> +<span class="sourceLineNo">118</span> }<a name="line.118"></a> +<span class="sourceLineNo">119</span> return monitorStatus;<a name="line.119"></a> +<span class="sourceLineNo">120</span> }<a name="line.120"></a> +<span class="sourceLineNo">121</span><a name="line.121"></a> +<span class="sourceLineNo">122</span> private void restoreSnapshotAcl(MasterProcedureEnv env) throws IOException {<a name="line.122"></a> +<span class="sourceLineNo">123</span> Configuration conf = env.getMasterServices().getConfiguration();<a name="line.123"></a> +<span class="sourceLineNo">124</span> if (restoreAcl && snapshot.hasUsersAndPermissions() && snapshot.getUsersAndPermissions() != null<a name="line.124"></a> +<span class="sourceLineNo">125</span> && SnapshotDescriptionUtils.isSecurityAvailable(conf)) {<a name="line.125"></a> +<span class="sourceLineNo">126</span> RestoreSnapshotHelper.restoreSnapshotAcl(snapshot, tableDescriptor.getTableName(), conf);<a name="line.126"></a> +<span class="sourceLineNo">127</span> }<a name="line.127"></a> +<span class="sourceLineNo">128</span> }<a name="line.128"></a> +<span class="sourceLineNo">129</span><a name="line.129"></a> +<span class="sourceLineNo">130</span> @Override<a name="line.130"></a> +<span class="sourceLineNo">131</span> protected Flow executeFromState(final MasterProcedureEnv env, final CloneSnapshotState state)<a name="line.131"></a> +<span class="sourceLineNo">132</span> throws InterruptedException {<a name="line.132"></a> +<span class="sourceLineNo">133</span> if (isTraceEnabled()) {<a name="line.133"></a> +<span class="sourceLineNo">134</span> LOG.trace(this + " execute state=" + state);<a name="line.134"></a> +<span class="sourceLineNo">135</span> }<a name="line.135"></a> +<span class="sourceLineNo">136</span> try {<a name="line.136"></a> +<span class="sourceLineNo">137</span> switch (state) {<a name="line.137"></a> +<span class="sourceLineNo">138</span> case CLONE_SNAPSHOT_PRE_OPERATION:<a name="line.138"></a> +<span class="sourceLineNo">139</span> // Verify if we can clone the table<a name="line.139"></a> +<span class="sourceLineNo">140</span> prepareClone(env);<a name="line.140"></a> +<span class="sourceLineNo">141</span><a name="line.141"></a> +<span class="sourceLineNo">142</span> preCloneSnapshot(env);<a name="line.142"></a> +<span class="sourceLineNo">143</span> setNextState(CloneSnapshotState.CLONE_SNAPSHOT_WRITE_FS_LAYOUT);<a name="line.143"></a> +<span class="sourceLineNo">144</span> break;<a name="line.144"></a> +<span class="sourceLineNo">145</span> case CLONE_SNAPSHOT_WRITE_FS_LAYOUT:<a name="line.145"></a> +<span class="sourceLineNo">146</span> newRegions = createFilesystemLayout(env, tableDescriptor, newRegions);<a name="line.146"></a> +<span class="sourceLineNo">147</span> setNextState(CloneSnapshotState.CLONE_SNAPSHOT_ADD_TO_META);<a name="line.147"></a> +<span class="sourceLineNo">148</span> break;<a name="line.148"></a> +<span class="sourceLineNo">149</span> case CLONE_SNAPSHOT_ADD_TO_META:<a name="line.149"></a> +<span class="sourceLineNo">150</span> addRegionsToMeta(env);<a name="line.150"></a> +<span class="sourceLineNo">151</span> setNextState(CloneSnapshotState.CLONE_SNAPSHOT_ASSIGN_REGIONS);<a name="line.151"></a> +<span class="sourceLineNo">152</span> break;<a name="line.152"></a> +<span class="sourceLineNo">153</span> case CLONE_SNAPSHOT_ASSIGN_REGIONS:<a name="line.153"></a> +<span class="sourceLineNo">154</span> CreateTableProcedure.setEnablingState(env, getTableName());<a name="line.154"></a> +<span class="sourceLineNo">155</span><a name="line.155"></a> +<span class="sourceLineNo">156</span> // Separate newRegions to split regions and regions to assign<a name="line.156"></a> +<span class="sourceLineNo">157</span> List<RegionInfo> splitRegions = new ArrayList<>();<a name="line.157"></a> +<span class="sourceLineNo">158</span> List<RegionInfo> regionsToAssign = new ArrayList<>();<a name="line.158"></a> +<span class="sourceLineNo">159</span> newRegions.forEach(ri -> {<a name="line.159"></a> +<span class="sourceLineNo">160</span> if (ri.isOffline() && (ri.isSplit() || ri.isSplitParent())) {<a name="line.160"></a> +<span class="sourceLineNo">161</span> splitRegions.add(ri);<a name="line.161"></a> +<span class="sourceLineNo">162</span> } else {<a name="line.162"></a> +<span class="sourceLineNo">163</span> regionsToAssign.add(ri);<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><a name="line.166"></a> +<span class="sourceLineNo">167</span> // For split regions, add them to RegionStates<a name="line.167"></a> +<span class="sourceLineNo">168</span> AssignmentManager am = env.getAssignmentManager();<a name="line.168"></a> +<span class="sourceLineNo">169</span> splitRegions.forEach(ri -><a name="line.169"></a> +<span class="sourceLineNo">170</span> am.getRegionStates().updateRegionState(ri, RegionState.State.SPLIT)<a name="line.170"></a> +<span class="sourceLineNo">171</span> );<a name="line.171"></a> +<span class="sourceLineNo">172</span><a name="line.172"></a> +<span class="sourceLineNo">173</span> addChildProcedure(env.getAssignmentManager()<a name="line.173"></a> +<span class="sourceLineNo">174</span> .createRoundRobinAssignProcedures(regionsToAssign));<a name="line.174"></a> +<span class="sourceLineNo">175</span> setNextState(CloneSnapshotState.CLONE_SNAPSHOT_UPDATE_DESC_CACHE);<a name="line.175"></a> +<span class="sourceLineNo">176</span> break;<a name="line.176"></a> +<span class="sourceLineNo">177</span> case CLONE_SNAPSHOT_UPDATE_DESC_CACHE:<a name="line.177"></a> +<span class="sourceLineNo">178</span> CreateTableProcedure.setEnabledState(env, getTableName());<a name="line.178"></a> +<span class="sourceLineNo">179</span> CreateTableProcedure.updateTableDescCache(env, getTableName());<a name="line.179"></a> +<span class="sourceLineNo">180</span> setNextState(CloneSnapshotState.CLONE_SNAPHOST_RESTORE_ACL);<a name="line.180"></a> +<span class="sourceLineNo">181</span> break;<a name="line.181"></a> +<span class="sourceLineNo">182</span> case CLONE_SNAPHOST_RESTORE_ACL:<a name="line.182"></a> +<span class="sourceLineNo">183</span> restoreSnapshotAcl(env);<a name="line.183"></a> +<span class="sourceLineNo">184</span> setNextState(CloneSnapshotState.CLONE_SNAPSHOT_POST_OPERATION);<a name="line.184"></a> +<span class="sourceLineNo">185</span> break;<a name="line.185"></a> +<span class="sourceLineNo">186</span> case CLONE_SNAPSHOT_POST_OPERATION:<a name="line.186"></a> +<span class="sourceLineNo">187</span> postCloneSnapshot(env);<a name="line.187"></a> +<span class="sourceLineNo">188</span><a name="line.188"></a> +<span class="sourceLineNo">189</span> MetricsSnapshot metricsSnapshot = new MetricsSnapshot();<a name="line.189"></a> +<span class="sourceLineNo">190</span> metricsSnapshot.addSnapshotClone(<a name="line.190"></a> +<span class="sourceLineNo">191</span> getMonitorStatus().getCompletionTimestamp() - getMonitorStatus().getStartTime());<a name="line.191"></a> +<span class="sourceLineNo">192</span> getMonitorStatus().markComplete("Clone snapshot '"+ snapshot.getName() +"' completed!");<a name="line.192"></a> +<span class="sourceLineNo">193</span> return Flow.NO_MORE_STATE;<a name="line.193"></a> +<span class="sourceLineNo">194</span> default:<a name="line.194"></a> +<span class="sourceLineNo">195</span> throw new UnsupportedOperationException("unhandled state=" + state);<a name="line.195"></a> +<span class="sourceLineNo">196</span> }<a name="line.196"></a> +<span class="sourceLineNo">197</span> } catch (IOException e) {<a name="line.197"></a> +<span class="sourceLineNo">198</span> if (isRollbackSupported(state)) {<a name="line.198"></a> +<span class="sourceLineNo">199</span> setFailure("master-clone-snapshot", e);<a name="line.199"></a> +<span class="sourceLineNo">200</span> } else {<a name="line.200"></a> +<span class="sourceLineNo">201</span> LOG.warn("Retriable error trying to clone snapshot=" + snapshot.getName() +<a name="line.201"></a> +<span class="sourceLineNo">202</span> " to table=" + getTableName() + " state=" + state, e);<a name="line.202"></a> +<span class="sourceLineNo">203</span> }<a name="line.203"></a> +<span class="sourceLineNo">204</span> }<a name="line.204"></a> +<span class="sourceLineNo">205</span> return Flow.HAS_MORE_STATE;<a name="line.205"></a> +<span class="sourceLineNo">206</span> }<a name="line.206"></a> +<span class="sourceLineNo">207</span><a name="line.207"></a> +<span class="sourceLineNo">208</span> @Override<a name="line.208"></a> +<span class="sourceLineNo">209</span> protected void rollbackState(final MasterProcedureEnv env, final CloneSnapshotState state)<a name="line.209"></a> +<span class="sourceLineNo">210</span> throws IOException {<a name="line.210"></a> +<span class="sourceLineNo">211</span> if (state == CloneSnapshotState.CLONE_SNAPSHOT_PRE_OPERATION) {<a name="line.211"></a> +<span class="sourceLineNo">212</span> DeleteTableProcedure.deleteTableStates(env, getTableName());<a name="line.212"></a> +<span class="sourceLineNo">213</span> // TODO-MAYBE: call the deleteTable coprocessor event?<a name="line.213"></a> +<span class="sourceLineNo">214</span> return;<a name="line.214"></a> +<span class="sourceLineNo">215</span> }<a name="line.215"></a> +<span class="sourceLineNo">216</span><a name="line.216"></a> +<span class="sourceLineNo">217</span> // The procedure doesn't have a rollback. The execution will succeed, at some point.<a name="line.217"></a> +<span class="sourceLineNo">218</span> throw new UnsupportedOperationException("unhandled state=" + state);<a name="line.218"></a> +<span class="sourceLineNo">219</span> }<a name="line.219"></a> +<span class="sourceLineNo">220</span><a name="line.220"></a> +<span class="sourceLineNo">221</span> @Override<a name="line.221"></a> +<span class="sourceLineNo">222</span> protected boolean isRollbackSupported(final CloneSnapshotState state) {<a name="line.222"></a> +<span class="sourceLineNo">223</span> switch (state) {<a name="line.223"></a> +<span class="sourceLineNo">224</span> case CLONE_SNAPSHOT_PRE_OPERATION:<a name="line.224"></a> +<span class="sourceLineNo">225</span> return true;<a name="line.225"></a> +<span class="sourceLineNo">226</span> default:<a name="line.226"></a> +<span class="sourceLineNo">227</span> return false;<a name="line.227"></a> +<span class="sourceLineNo">228</span> }<a name="line.228"></a> +<span class="sourceLineNo">229</span> }<a name="line.229"></a> +<span class="sourceLineNo">230</span><a name="line.230"></a> +<span class="sourceLineNo">231</span> @Override<a name="line.231"></a> +<span class="sourceLineNo">232</span> protected CloneSnapshotState getState(final int stateId) {<a name="line.232"></a> +<span class="sourceLineNo">233</span> return CloneSnapshotState.valueOf(stateId);<a name="line.233"></a> +<span class="sourceLineNo">234</span> }<a name="line.234"></a> +<span class="sourceLineNo">235</span><a name="line.235"></a> +<span class="sourceLineNo">236</span> @Override<a name="line.236"></a> +<span class="sourceLineNo">237</span> protected int getStateId(final CloneSnapshotState state) {<a name="line.237"></a> +<span class="sourceLineNo">238</span> return state.getNumber();<a name="line.238"></a> +<span class="sourceLineNo">239</span> }<a name="line.239"></a> +<span class="sourceLineNo">240</span><a name="line.240"></a> +<span class="sourceLineNo">241</span> @Override<a name="line.241"></a> +<span class="sourceLineNo">242</span> protected CloneSnapshotState getInitialState() {<a name="line.242"></a> +<span class="sourceLineNo">243</span> return CloneSnapshotState.CLONE_SNAPSHOT_PRE_OPERATION;<a name="line.243"></a> +<span class="sourceLineNo">244</span> }<a name="line.244"></a> +<span class="sourceLineNo">245</span><a name="line.245"></a> +<span class="sourceLineNo">246</span> @Override<a name="line.246"></a> +<span class="sourceLineNo">247</span> public TableName getTableName() {<a name="line.247"></a> +<span class="sourceLineNo">248</span> return tableDescriptor.getTableName();<a name="line.248"></a> +<span class="sourceLineNo">249</span> }<a name="line.249"></a> +<span class="sourceLineNo">250</span><a name="line.250"></a> +<span class="sourceLineNo">251</span> @Override<a name="line.251"></a> +<span class="sourceLineNo">252</span> public TableOperationType getTableOperationType() {<a name="line.252"></a> +<span class="sourceLineNo">253</span> return TableOperationType.CREATE; // Clone is creating a table<a name="line.253"></a> +<span class="sourceLineNo">254</span> }<a name="line.254"></a> +<span class="sourceLineNo">255</span><a name="line.255"></a> +<span class="sourceLineNo">256</span> @Override<a name="line.256"></a> +<span class="sourceLineNo">257</span> public void toStringClassDetails(StringBuilder sb) {<a name="line.257"></a> +<span class="sourceLineNo">258</span> sb.append(getClass().getSimpleName());<a name="line.258"></a> +<span class="sourceLineNo">259</span> sb.append(" (table=");<a name="line.259"></a> +<span class="sourceLineNo">260</span> sb.append(getTableName());<a name="line.260"></a> +<span class="sourceLineNo">261</span> sb.append(" snapshot=");<a name="line.261"></a> +<span class="sourceLineNo">262</span> sb.append(snapshot);<a name="line.262"></a> +<span class="sourceLineNo">263</span> sb.append(")");<a name="line.263"></a> +<span class="sourceLineNo">264</span> }<a name="line.264"></a> +<span class="sourceLineNo">265</span><a name="line.265"></a> +<span class="sourceLineNo">266</span> @Override<a name="line.266"></a> +<span class="sourceLineNo">267</span> protected void serializeStateData(ProcedureStateSerializer serializer)<a name="line.267"></a> +<span class="sourceLineNo">268</span> throws IOException {<a name="line.268"></a> +<span class="sourceLineNo">269</span> super.serializeStateData(serializer);<a name="line.269"></a> +<span class="sourceLineNo">270</span><a name="line.270"></a> +<span class="sourceLineNo">271</span> MasterProcedureProtos.CloneSnapshotStateData.Builder cloneSnapshotMsg =<a name="line.271"></a> +<span class="sourceLineNo">272</span> MasterProcedureProtos.CloneSnapshotStateData.newBuilder()<a name="line.272"></a> +<span class="sourceLineNo">273</span> .setUserInfo(MasterProcedureUtil.toProtoUserInfo(getUser()))<a name="line.273"></a> +<span class="sourceLineNo">274</span> .setSnapshot(this.snapshot)<a name="line.274"></a> +<span class="sourceLineNo">275</span> .setTableSchema(ProtobufUtil.toTableSchema(tableDescriptor));<a name="line.275"></a> +<span class="sourceLineNo">276</span> if (newRegions != null) {<a name="line.276"></a> +<span class="sourceLineNo">277</span> for (RegionInfo hri: newRegions) {<a name="line.277"></a> +<span class="sourceLineNo">278</span> cloneSnapshotMsg.addRegionInfo(ProtobufUtil.toRegionInfo(hri));<a name="line.278"></a> +<span class="sourceLineNo">279</span> }<a name="line.279"></a> +<span class="sourceLineNo">280</span> }<a name="line.280"></a> +<span class="sourceLineNo">281</span> if (!parentsToChildrenPairMap.isEmpty()) {<a name="line.281"></a> +<span class="sourceLineNo">282</span> final Iterator<Map.Entry<String, Pair<String, String>>> it =<a name="line.282"></a> +<span class="sourceLineNo">283</span> parentsToChildrenPairMap.entrySet().iterator();<a name="line.283"></a> +<span class="sourceLineNo">284</span> while (it.hasNext()) {<a name="line.284"></a> +<span class="sourceLineNo">285</span> final Map.Entry<String, Pair<String, String>> entry = it.next();<a name="line.285"></a> +<span class="sourceLineNo">286</span><a name="line.286"></a> +<span class="sourceLineNo">287</span> MasterProcedureProtos.RestoreParentToChildRegionsPair.Builder parentToChildrenPair =<a name="line.287"></a> +<span class="sourceLineNo">288</span> MasterProcedureProtos.RestoreParentToChildRegionsPair.newBuilder()<a name="line.288"></a> +<span class="sourceLineNo">289</span> .setParentRegionName(entry.getKey())<a name="line.289"></a> +<span class="sourceLineNo">290</span> .setChild1RegionName(entry.getValue().getFirst())<a name="line.290"></a> +<span class="sourceLineNo">291</span> .setChild2RegionName(entry.getValue().getSecond());<a name="line.291"></a> +<span class="sourceLineNo">292</span> cloneSnapshotMsg.addParentToChildRegionsPairList(parentToChildrenPair);<a name="line.292"></a> +<span class="sourceLineNo">293</span> }<a name="line.293"></a> +<span class="sourceLineNo">294</span> }<a name="line.294"></a> +<span class="sourceLineNo">295</span> serializer.serialize(cloneSnapshotMsg.build());<a name="line.295"></a> +<span class="sourceLineNo">296</span> }<a name="line.296"></a> +<span class="sourceLineNo">297</span><a name="line.297"></a> +<span class="sourceLineNo">298</span> @Override<a name="line.298"></a> +<span class="sourceLineNo">299</span> protected void deserializeStateData(ProcedureStateSerializer serializer)<a name="line.299"></a> +<span class="sourceLineNo">300</span> throws IOException {<a name="line.300"></a> +<span class="sourceLineNo">301</span> super.deserializeStateData(serializer);<a name="line.301"></a> +<span class="sourceLineNo">302</span><a name="line.302"></a> +<span class="sourceLineNo">303</span> MasterProcedureProtos.CloneSnapshotStateData cloneSnapshotMsg =<a name="line.303"></a> +<span class="sourceLineNo">304</span> serializer.deserialize(MasterProcedureProtos.CloneSnapshotStateData.class);<a name="line.304"></a> +<span class="sourceLineNo">305</span> setUser(MasterProcedureUtil.toUserInfo(cloneSnapshotMsg.getUserInfo()));<a name="line.305"></a> +<span class="sourceLineNo">306</span> snapshot = cloneSnapshotMsg.getSnapshot();<a name="line.306"></a> +<span class="sourceLineNo">307</span> tableDescriptor = ProtobufUtil.toTableDescriptor(cloneSnapshotMsg.getTableSchema());<a name="line.307"></a> +<span class="sourceLineNo">308</span> if (cloneSnapshotMsg.getRegionInfoCount() == 0) {<a name="line.308"></a> +<span class="sourceLineNo">309</span> newRegions = null;<a name="line.309"></a> +<span class="sourceLineNo">310</span> } else {<a name="line.310"></a> +<span class="sourceLineNo">311</span> newRegions = new ArrayList<>(cloneSnapshotMsg.getRegionInfoCount());<a name="line.311"></a> +<span class="sourceLineNo">312</span> for (HBaseProtos.RegionInfo hri: cloneSnapshotMsg.getRegionInfoList()) {<a name="line.312"></a> +<span class="sourceLineNo">313</span> newRegions.add(ProtobufUtil.toRegionInfo(hri));<a name="line.313"></a> +<span class="sourceLineNo">314</span> }<a name="line.314"></a> +<span class="sourceLineNo">315</span> }<a name="line.315"></a> +<span class="sourceLineNo">316</span> if (cloneSnapshotMsg.getParentToChildRegionsPairListCount() > 0) {<a name="line.316"></a> +<span class="sourceLineNo">317</span> parentsToChildrenPairMap = new HashMap<>();<a name="line.317"></a> +<span class="sourceLineNo">318</span> for (MasterProcedureProtos.RestoreParentToChildRegionsPair parentToChildrenPair:<a name="line.318"></a> +<span class="sourceLineNo">319</span> cloneSnapshotMsg.getParentToChildRegionsPairListList()) {<a name="line.319"></a> +<span class="sourceLineNo">320</span> parentsToChildrenPairMap.put(<a name="line.320"></a> +<span class="sourceLineNo">321</span> parentToChildrenPair.getParentRegionName(),<a name="line.321"></a> +<span class="sourceLineNo">322</span> new Pair<>(<a name="line.322"></a> +<span class="sourceLineNo">323</span> parentToChildrenPair.getChild1RegionName(),<a name="line.323"></a> +<span class="sourceLineNo">324</span> parentToChildrenPair.getChild2RegionName()));<a name="line.324"></a> +<span class="sourceLineNo">325</span> }<a name="line.325"></a> +<span class="sourceLineNo">326</span> }<a name="line.326"></a> +<span class="sourceLineNo">327</span> // Make sure that the monitor status is set up<a name="line.327"></a> +<span class="sourceLineNo">328</span> getMonitorStatus();<a name="line.328"></a> +<span class="sourceLineNo">329</span> }<a name="line.329"></a> +<span class="sourceLineNo">330</span><a name="line.330"></a> +<span class="sourceLineNo">331</span> /**<a name="line.331"></a> +<span class="sourceLineNo">332</span> * Action before any real action of cloning from snapshot.<a name="line.332"></a> +<span class="sourceLineNo">333</span> * @param env MasterProcedureEnv<a name="line.333"></a> +<span class="sourceLineNo">334</span> * @throws IOException<a name="line.334"></a> +<span class="sourceLineNo">335</span> */<a name="line.335"></a> +<span class="sourceLineNo">336</span> private void prepareClone(final MasterProcedureEnv env) throws IOException {<a name="line.336"></a> +<span class="sourceLineNo">337</span> final TableName tableName = getTableName();<a name="line.337"></a> +<span class="sourceLineNo">338</span> if (MetaTableAccessor.tableExists(env.getMasterServices().getConnection(), tableName)) {<a name="line.338"></a> +<span class="sourceLineNo">339</span> throw new TableExistsException(getTableName());<a name="line.339"></a> +<span class="sourceLineNo">340</span> }<a name="line.340"></a> +<span class="sourceLineNo">341</span> }<a name="line.341"></a> +<span class="sourceLineNo">342</span><a name="line.342"></a> +<span class="sourceLineNo">343</span> /**<a name="line.343"></a> +<span class="sourceLineNo">344</span> * Action before cloning from snapshot.<a name="line.344"></a> +<span class="sourceLineNo">345</span> * @param env MasterProcedureEnv<a name="line.345"></a> +<span class="sourceLineNo">346</span> * @throws IOException<a name="line.346"></a> +<span class="sourceLineNo">347</span> * @throws InterruptedException<a name="line.347"></a> +<span class="sourceLineNo">348</span> */<a name="line.348"></a> +<span class="sourceLineNo">349</span> private void preCloneSnapshot(final MasterProcedureEnv env)<a name="line.349"></a> +<span class="sourceLineNo">350</span> throws IOException, InterruptedException {<a name="line.350"></a> +<span class="sourceLineNo">351</span> if (!getTableName().isSystemTable()) {<a name="line.351"></a> +<span class="sourceLineNo">352</span> // Check and update namespace quota<a name="line.352"></a> +<span class="sourceLineNo">353</span> final MasterFileSystem mfs = env.getMasterServices().getMasterFileSystem();<a name="line.353"></a> +<span class="sourceLineNo">354</span><a name="line.354"></a> +<span class="sourceLineNo">355</span> SnapshotManifest manifest = SnapshotManifest.open(<a name="line.355"></a> +<span class="sourceLineNo">356</span> env.getMasterConfiguration(),<a name="line.356"></a> +<span class="sourceLineNo">357</span> mfs.getFileSystem(),<a name="line.357"></a> +<span class="sourceLineNo">358</span> SnapshotDescriptionUtils.getCompletedSnapshotDir(snapshot, mfs.getRootDir()),<a name="line.358"></a> +<span class="sourceLineNo">359</span> snapshot);<a name="line.359"></a> +<span class="sourceLineNo">360</span><a name="line.360"></a> +<span class="sourceLineNo">361</span> ProcedureSyncWait.getMasterQuotaManager(env)<a name="line.361"></a> +<span class="sourceLineNo">362</span> .checkNamespaceTableAndRegionQuota(getTableName(), manifest.getRegionManifestsMap().size());<a name="line.362"></a> +<span class="sourceLineNo">363</span> }<a name="line.363"></a> +<span class="sourceLineNo">364</span><a name="line.364"></a> +<span class="sourceLineNo">365</span> final MasterCoprocessorHost cpHost = env.getMasterCoprocessorHost();<a name="line.365"></a> +<span class="sourceLineNo">366</span> if (cpHost != null) {<a name="line.366"></a> +<span class="sourceLineNo">367</span> cpHost.preCreateTableAction(tableDescriptor, null, getUser());<a name="line.367"></a> +<span class="sourceLineNo">368</span> }<a name="line.368"></a> +<span class="sourceLineNo">369</span> }<a name="line.369"></a> +<span class="sourceLineNo">370</span><a name="line.370"></a> +<span class="sourceLineNo">371</span> /**<a name="line.371"></a> +<span class="sourceLineNo">372</span> * Action after cloning from snapshot.<a name="line.372"></a> +<span class="sourceLineNo">373</span> * @param env MasterProcedureEnv<a name="line.373"></a> +<span class="sourceLineNo">374</span> * @throws IOException<a name="line.374"></a> +<span class="sourceLineNo">375</span> * @throws InterruptedException<a name="line.375"></a> +<span class="sourceLineNo">376</span> */<a name="line.376"></a> +<span class="sourceLineNo">377</span> private void postCloneSnapshot(final MasterProcedureEnv env)<a name="line.377"></a> +<span class="sourceLineNo">378</span> throws IOException, InterruptedException {<a name="line.378"></a> +<span class="sourceLineNo">379</span> final MasterCoprocessorHost cpHost = env.getMasterCoprocessorHost();<a name="line.379"></a> +<span class="sourceLineNo">380</span> if (cpHost != null) {<a name="line.380"></a> +<span class="sourceLineNo">381</span> final RegionInfo[] regions = (newRegions == null) ? null :<a name="line.381"></a> +<span class="sourceLineNo">382</span> newRegions.toArray(new RegionInfo[newRegions.size()]);<a name="line.382"></a> +<span class="sourceLineNo">383</span> cpHost.postCompletedCreateTableAction(tableDescriptor, regions, getUser());<a name="line.383"></a> +<span class="sourceLineNo">384</span> }<a name="line.384"></a> +<span class="sourceLineNo">385</span> }<a name="line.385"></a> +<span class="sourceLineNo">386</span><a name="line.386"></a> +<span class="sourceLineNo">387</span> /**<a name="line.387"></a> +<span class="sourceLineNo">388</span> * Create regions in file system.<a name="line.388"></a> +<span class="sourceLineNo">389</span> * @param env MasterProcedureEnv<a name="line.389"></a> +<span class="sourceLineNo">390</span> * @throws IOException<a name="line.390"></a> +<span class="sourceLineNo">391</span> */<a name="line.391"></a> +<span class="sourceLineNo">392</span> private List<RegionInfo> createFilesystemLayout(<a name="line.392"></a> +<span class="sourceLineNo">393</span> final MasterProcedureEnv env,<a name="line.393"></a> +<span class="sourceLineNo">394</span> final TableDescriptor tableDescriptor,<a name="line.394"></a> +<span class="sourceLineNo">395</span> final List<RegionInfo> newRegions) throws IOException {<a name="line.395"></a> +<span class="sourceLineNo">396</span> return createFsLayout(env, tableDescriptor, newRegions, new CreateHdfsRegions() {<a name="line.396"></a> +<span class="sourceLineNo">397</span> @Override<a name="line.397"></a> +<span class="sourceLineNo">398</span> public List<RegionInfo> createHdfsRegions(<a name="line.398"></a> +<span class="sourceLineNo">399</span> final MasterProcedureEnv env,<a name="line.399"></a> +<span class="sourceLineNo">400</span> final Path tableRootDir, final TableName tableName,<a name="line.400"></a> +<span class="sourceLineNo">401</span> final List<RegionInfo> newRegions) throws IOException {<a name="line.401"></a> +<span class="sourceLineNo">402</span><a name="line.402"></a> +<span class="sourceLineNo">403</span> final MasterFileSystem mfs = env.getMasterServices().getMasterFileSystem();<a name="line.403"></a> +<span class="sourceLineNo">404</span> final FileSystem fs = mfs.getFileSystem();<a name="line.404"></a> +<span class="sourceLineNo">405</span> final Path rootDir = mfs.getRootDir();<a name="line.405"></a> +<span class="sourceLineNo">406</span> final Configuration conf = env.getMasterConfiguration();<a name="line.406"></a> +<span class="sourceLineNo">407</span> final ForeignExceptionDispatcher monitorException = new ForeignExceptionDispatcher();<a name="line.407"></a> +<span class="sourceLineNo">408</span><a name="line.408"></a> +<span class="sourceLineNo">409</span> getMonitorStatus().setStatus("Clone snapshot - creating regions for table: " + tableName);<a name="line.409"></a> +<span class="sourceLineNo">410</span><a name="line.410"></a> +<span class="sourceLineNo">411</span> try {<a name="line.411"></a> +<span class="sourceLineNo">412</span> // 1. Execute the on-disk Clone<a name="line.412"></a> +<span class="sourceLineNo">413</span> Path snapshotDir = SnapshotDescriptionUtils.getCompletedSnapshotDir(snapshot, rootDir);<a name="line.413"></a> +<span class="sourceLineNo">414</span> SnapshotManifest manifest = SnapshotManifest.open(conf, fs, snapshotDir, snapshot);<a name="line.414"></a> +<span class="sourceLineNo">415</span> RestoreSnapshotHelper restoreHelper = new RestoreSnapshotHelper(<a name="line.415"></a> +<span class="sourceLineNo">416</span> conf, fs, manifest, tableDescriptor, tableRootDir, monitorException, monitorStatus);<a name="line.416"></a> +<span class="sourceLineNo">417</span> RestoreSnapshotHelper.RestoreMetaChanges metaChanges = restoreHelper.restoreHdfsRegions();<a name="line.417"></a> +<span class="sourceLineNo">418</span><a name="line.418"></a> +<span class="sourceLineNo">419</span> // Clone operation should not have stuff to restore or remove<a name="line.419"></a> +<span class="sourceLineNo">420</span> Preconditions.checkArgument(<a name="line.420"></a> +<span class="sourceLineNo">421</span> !metaChanges.hasRegionsToRestore(), "A clone should not have regions to restore");<a name="line.421"></a> +<span class="sourceLineNo">422</span> Preconditions.checkArgument(<a name="line.422"></a> +<span class="sourceLineNo">423</span> !metaChanges.hasRegionsToRemove(), "A clone should not have regions to remove");<a name="line.423"></a> +<span class="sourceLineNo">424</span><a name="line.424"></a> +<span class="sourceLineNo">425</span> // At this point the clone is complete. Next step is enabling the table.<a name="line.425"></a> +<span class="sourceLineNo">426</span> String msg =<a name="line.426"></a> +<span class="sourceLineNo">427</span> "Clone snapshot="+ snapshot.getName() +" on table=" + tableName + " completed!";<a name="line.427"></a> +<span class="sourceLineNo">428</span> LOG.info(msg);<a name="line.428"></a> +<span class="sourceLineNo">429</span> monitorStatus.setStatus(msg + " Waiting for table to be enabled...");<a name="line.429"></a> +<span class="sourceLineNo">430</span><a name="line.430"></a> +<span class="sourceLineNo">431</span> // 2. Let the next step to add the regions to meta<a name="line.431"></a> +<span class="sourceLineNo">432</span> return metaChanges.getRegionsToAdd();<a name="line.432"></a> +<span class="sourceLineNo">433</span> } catch (Exception e) {<a name="line.433"></a> +<span class="sourceLineNo">434</span> String msg = "clone snapshot=" + ClientSnapshotDescriptionUtils.toString(snapshot) +<a name="line.434"></a> +<span class="sourceLineNo">435</span> " failed because " + e.getMessage();<a name="line.435"></a> +<span class="sourceLineNo">436</span> LOG.error(msg, e);<a name="line.436"></a> +<span class="sourceLineNo">437</span> IOException rse = new RestoreSnapshotException(msg, e,<a name="line.437"></a> +<span class="sourceLineNo">438</span> ProtobufUtil.createSnapshotDesc(snapshot));<a name="line.438"></a> +<span class="sourceLineNo">439</span><a name="line.439"></a> +<span class="sourceLineNo">440</span> // these handlers aren't futures so we need to register the error here.<a name="line.440"></a> +<span class="sourceLineNo">441</span> monitorException.receive(new ForeignException("Master CloneSnapshotProcedure", rse));<a name="line.441"></a> +<span class="sourceLineNo">442</span> throw rse;<a name="line.442"></a> +<span class="sourceLineNo">443</span> }<a name="line.443"></a> +<span class="sourceLineNo">444</span> }<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><a name="line.447"></a> +<span class="sourceLineNo">448</span> /**<a name="line.448"></a> +<span class="sourceLineNo">449</span> * Create region layout in file system.<a name="line.449"></a> +<span class="sourceLineNo">450</span> * @param env MasterProcedureEnv<a name="line.450"></a> +<span class="sourceLineNo">451</span> * @throws IOException<a name="line.451"></a> +<span class="sourceLineNo">452</span> */<a name="line.452"></a> +<span class="sourceLineNo">453</span> private List<RegionInfo> createFsLayout(<a name="line.453"></a> +<span class="sourceLineNo">454</span> final MasterProcedureEnv env,<a name="line.454"></a> +<span class="sourceLineNo">455</span> final TableDescriptor tableDescriptor,<a name="line.455"></a> +<span class="sourceLineNo">456</span> List<RegionInfo> newRegions,<a name="line.456"></a> +<span class="sourceLineNo">457</span> final CreateHdfsRegions hdfsRegionHandler) throws IOException {<a name="line.457"></a> +<span class="sourceLineNo">458</span> final MasterFileSystem mfs = env.getMasterServices().getMasterFileSystem();<a name="line.458"></a> +<span class="sourceLineNo">459</span> final Path tempdir = mfs.getTempDir();<a name="line.459"></a> +<span class="sourceLineNo">460</span><a name="line.460"></a> +<span class="sourceLineNo">461</span> // 1. Create Table Descriptor<a name="line.461"></a> +<span class="sourceLineNo">462</span> // using a copy of descriptor, table will be created enabling first<a name="line.462"></a> +<span class="sourceLineNo">463</span> final Path tempTableDir = FSUtils.getTableDir(tempdir, tableDescriptor.getTableName());<a name="line.463"></a> +<span class="sourceLineNo">464</span> ((FSTableDes
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