http://git-wip-us.apache.org/repos/asf/hbase-site/blob/713132a3/devapidocs/src-html/org/apache/hadoop/hbase/tool/Canary.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/tool/Canary.html b/devapidocs/src-html/org/apache/hadoop/hbase/tool/Canary.html index ce887a2..506bc5c 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/tool/Canary.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/tool/Canary.html @@ -98,1529 +98,1560 @@ <span class="sourceLineNo">090</span>import org.apache.hadoop.util.GenericOptionsParser;<a name="line.90"></a> <span class="sourceLineNo">091</span>import org.apache.hadoop.util.Tool;<a name="line.91"></a> <span class="sourceLineNo">092</span>import org.apache.hadoop.util.ToolRunner;<a name="line.92"></a> -<span class="sourceLineNo">093</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.93"></a> -<span class="sourceLineNo">094</span>import org.apache.zookeeper.KeeperException;<a name="line.94"></a> -<span class="sourceLineNo">095</span>import org.apache.zookeeper.ZooKeeper;<a name="line.95"></a> -<span class="sourceLineNo">096</span>import org.apache.zookeeper.client.ConnectStringParser;<a name="line.96"></a> -<span class="sourceLineNo">097</span>import org.apache.zookeeper.data.Stat;<a name="line.97"></a> -<span class="sourceLineNo">098</span>import org.slf4j.Logger;<a name="line.98"></a> -<span class="sourceLineNo">099</span>import org.slf4j.LoggerFactory;<a name="line.99"></a> -<span class="sourceLineNo">100</span><a name="line.100"></a> -<span class="sourceLineNo">101</span>import org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a name="line.101"></a> -<span class="sourceLineNo">102</span><a name="line.102"></a> -<span class="sourceLineNo">103</span>/**<a name="line.103"></a> -<span class="sourceLineNo">104</span> * HBase Canary Tool, that that can be used to do<a name="line.104"></a> -<span class="sourceLineNo">105</span> * "canary monitoring" of a running HBase cluster.<a name="line.105"></a> +<span class="sourceLineNo">093</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.93"></a> +<span class="sourceLineNo">094</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.94"></a> +<span class="sourceLineNo">095</span>import org.apache.zookeeper.KeeperException;<a name="line.95"></a> +<span class="sourceLineNo">096</span>import org.apache.zookeeper.ZooKeeper;<a name="line.96"></a> +<span class="sourceLineNo">097</span>import org.apache.zookeeper.client.ConnectStringParser;<a name="line.97"></a> +<span class="sourceLineNo">098</span>import org.apache.zookeeper.data.Stat;<a name="line.98"></a> +<span class="sourceLineNo">099</span>import org.slf4j.Logger;<a name="line.99"></a> +<span class="sourceLineNo">100</span>import org.slf4j.LoggerFactory;<a name="line.100"></a> +<span class="sourceLineNo">101</span><a name="line.101"></a> +<span class="sourceLineNo">102</span>import org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a name="line.102"></a> +<span class="sourceLineNo">103</span><a name="line.103"></a> +<span class="sourceLineNo">104</span>/**<a name="line.104"></a> +<span class="sourceLineNo">105</span> * HBase Canary Tool for "canary monitoring" of a running HBase cluster.<a name="line.105"></a> <span class="sourceLineNo">106</span> *<a name="line.106"></a> -<span class="sourceLineNo">107</span> * Here are three modes<a name="line.107"></a> -<span class="sourceLineNo">108</span> * 1. region mode - Foreach region tries to get one row per column family<a name="line.108"></a> -<span class="sourceLineNo">109</span> * and outputs some information about failure or latency.<a name="line.109"></a> -<span class="sourceLineNo">110</span> *<a name="line.110"></a> -<span class="sourceLineNo">111</span> * 2. regionserver mode - Foreach regionserver tries to get one row from one table<a name="line.111"></a> -<span class="sourceLineNo">112</span> * selected randomly and outputs some information about failure or latency.<a name="line.112"></a> -<span class="sourceLineNo">113</span> *<a name="line.113"></a> -<span class="sourceLineNo">114</span> * 3. zookeeper mode - for each zookeeper instance, selects a zNode and<a name="line.114"></a> -<span class="sourceLineNo">115</span> * outputs some information about failure or latency.<a name="line.115"></a> -<span class="sourceLineNo">116</span> */<a name="line.116"></a> -<span class="sourceLineNo">117</span>@InterfaceAudience.Private<a name="line.117"></a> -<span class="sourceLineNo">118</span>public final class Canary implements Tool {<a name="line.118"></a> -<span class="sourceLineNo">119</span> // Sink interface used by the canary to outputs information<a name="line.119"></a> -<span class="sourceLineNo">120</span> public interface Sink {<a name="line.120"></a> -<span class="sourceLineNo">121</span> public long getReadFailureCount();<a name="line.121"></a> -<span class="sourceLineNo">122</span> public long incReadFailureCount();<a name="line.122"></a> -<span class="sourceLineNo">123</span> public Map<String,String> getReadFailures();<a name="line.123"></a> -<span class="sourceLineNo">124</span> public void updateReadFailures(String regionName, String serverName);<a name="line.124"></a> -<span class="sourceLineNo">125</span> public long getWriteFailureCount();<a name="line.125"></a> -<span class="sourceLineNo">126</span> public long incWriteFailureCount();<a name="line.126"></a> -<span class="sourceLineNo">127</span> public Map<String,String> getWriteFailures();<a name="line.127"></a> -<span class="sourceLineNo">128</span> public void updateWriteFailures(String regionName, String serverName);<a name="line.128"></a> -<span class="sourceLineNo">129</span> }<a name="line.129"></a> -<span class="sourceLineNo">130</span><a name="line.130"></a> -<span class="sourceLineNo">131</span> // Simple implementation of canary sink that allows to plot on<a name="line.131"></a> -<span class="sourceLineNo">132</span> // file or standard output timings or failures.<a name="line.132"></a> -<span class="sourceLineNo">133</span> public static class StdOutSink implements Sink {<a name="line.133"></a> -<span class="sourceLineNo">134</span> private AtomicLong readFailureCount = new AtomicLong(0),<a name="line.134"></a> -<span class="sourceLineNo">135</span> writeFailureCount = new AtomicLong(0);<a name="line.135"></a> -<span class="sourceLineNo">136</span><a name="line.136"></a> -<span class="sourceLineNo">137</span> private Map<String, String> readFailures = new ConcurrentHashMap<>();<a name="line.137"></a> -<span class="sourceLineNo">138</span> private Map<String, String> writeFailures = new ConcurrentHashMap<>();<a name="line.138"></a> -<span class="sourceLineNo">139</span><a name="line.139"></a> -<span class="sourceLineNo">140</span> @Override<a name="line.140"></a> -<span class="sourceLineNo">141</span> public long getReadFailureCount() {<a name="line.141"></a> -<span class="sourceLineNo">142</span> return readFailureCount.get();<a name="line.142"></a> -<span class="sourceLineNo">143</span> }<a name="line.143"></a> -<span class="sourceLineNo">144</span><a name="line.144"></a> -<span class="sourceLineNo">145</span> @Override<a name="line.145"></a> -<span class="sourceLineNo">146</span> public long incReadFailureCount() {<a name="line.146"></a> -<span class="sourceLineNo">147</span> return readFailureCount.incrementAndGet();<a name="line.147"></a> -<span class="sourceLineNo">148</span> }<a name="line.148"></a> -<span class="sourceLineNo">149</span><a name="line.149"></a> -<span class="sourceLineNo">150</span> @Override<a name="line.150"></a> -<span class="sourceLineNo">151</span> public Map<String, String> getReadFailures() {<a name="line.151"></a> -<span class="sourceLineNo">152</span> return readFailures;<a name="line.152"></a> -<span class="sourceLineNo">153</span> }<a name="line.153"></a> -<span class="sourceLineNo">154</span><a name="line.154"></a> -<span class="sourceLineNo">155</span> @Override<a name="line.155"></a> -<span class="sourceLineNo">156</span> public void updateReadFailures(String regionName, String serverName) {<a name="line.156"></a> -<span class="sourceLineNo">157</span> readFailures.put(regionName, serverName);<a name="line.157"></a> -<span class="sourceLineNo">158</span> }<a name="line.158"></a> -<span class="sourceLineNo">159</span><a name="line.159"></a> -<span class="sourceLineNo">160</span> @Override<a name="line.160"></a> -<span class="sourceLineNo">161</span> public long getWriteFailureCount() {<a name="line.161"></a> -<span class="sourceLineNo">162</span> return writeFailureCount.get();<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> @Override<a name="line.165"></a> -<span class="sourceLineNo">166</span> public long incWriteFailureCount() {<a name="line.166"></a> -<span class="sourceLineNo">167</span> return writeFailureCount.incrementAndGet();<a name="line.167"></a> -<span class="sourceLineNo">168</span> }<a name="line.168"></a> -<span class="sourceLineNo">169</span><a name="line.169"></a> -<span class="sourceLineNo">170</span> @Override<a name="line.170"></a> -<span class="sourceLineNo">171</span> public Map<String, String> getWriteFailures() {<a name="line.171"></a> -<span class="sourceLineNo">172</span> return writeFailures;<a name="line.172"></a> -<span class="sourceLineNo">173</span> }<a name="line.173"></a> -<span class="sourceLineNo">174</span><a name="line.174"></a> -<span class="sourceLineNo">175</span> @Override<a name="line.175"></a> -<span class="sourceLineNo">176</span> public void updateWriteFailures(String regionName, String serverName) {<a name="line.176"></a> -<span class="sourceLineNo">177</span> writeFailures.put(regionName, serverName);<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><a name="line.180"></a> -<span class="sourceLineNo">181</span> public static class RegionServerStdOutSink extends StdOutSink {<a name="line.181"></a> -<span class="sourceLineNo">182</span><a name="line.182"></a> -<span class="sourceLineNo">183</span> public void publishReadFailure(String table, String server) {<a name="line.183"></a> -<span class="sourceLineNo">184</span> incReadFailureCount();<a name="line.184"></a> -<span class="sourceLineNo">185</span> LOG.error(String.format("Read from table:%s on region server:%s", table, server));<a name="line.185"></a> -<span class="sourceLineNo">186</span> }<a name="line.186"></a> +<span class="sourceLineNo">107</span> * There are three modes:<a name="line.107"></a> +<span class="sourceLineNo">108</span> * <ol><a name="line.108"></a> +<span class="sourceLineNo">109</span> * <li>region mode (Default): For each region, try to get one row per column family outputting<a name="line.109"></a> +<span class="sourceLineNo">110</span> * information on failure (ERROR) or else the latency.<a name="line.110"></a> +<span class="sourceLineNo">111</span> * </li><a name="line.111"></a> +<span class="sourceLineNo">112</span> *<a name="line.112"></a> +<span class="sourceLineNo">113</span> * <li>regionserver mode: For each regionserver try to get one row from one table selected<a name="line.113"></a> +<span class="sourceLineNo">114</span> * randomly outputting information on failure (ERROR) or else the latency.<a name="line.114"></a> +<span class="sourceLineNo">115</span> * </li><a name="line.115"></a> +<span class="sourceLineNo">116</span> *<a name="line.116"></a> +<span class="sourceLineNo">117</span> * <li>zookeeper mode: for each zookeeper instance, selects a znode outputting information on<a name="line.117"></a> +<span class="sourceLineNo">118</span> * failure (ERROR) or else the latency.<a name="line.118"></a> +<span class="sourceLineNo">119</span> * </li><a name="line.119"></a> +<span class="sourceLineNo">120</span> * </ol><a name="line.120"></a> +<span class="sourceLineNo">121</span> */<a name="line.121"></a> +<span class="sourceLineNo">122</span>@InterfaceAudience.Private<a name="line.122"></a> +<span class="sourceLineNo">123</span>public final class Canary implements Tool {<a name="line.123"></a> +<span class="sourceLineNo">124</span> /**<a name="line.124"></a> +<span class="sourceLineNo">125</span> * Sink interface used by the canary to output information<a name="line.125"></a> +<span class="sourceLineNo">126</span> */<a name="line.126"></a> +<span class="sourceLineNo">127</span> public interface Sink {<a name="line.127"></a> +<span class="sourceLineNo">128</span> long getReadFailureCount();<a name="line.128"></a> +<span class="sourceLineNo">129</span> long incReadFailureCount();<a name="line.129"></a> +<span class="sourceLineNo">130</span> Map<String,String> getReadFailures();<a name="line.130"></a> +<span class="sourceLineNo">131</span> void updateReadFailures(String regionName, String serverName);<a name="line.131"></a> +<span class="sourceLineNo">132</span> long getWriteFailureCount();<a name="line.132"></a> +<span class="sourceLineNo">133</span> long incWriteFailureCount();<a name="line.133"></a> +<span class="sourceLineNo">134</span> Map<String,String> getWriteFailures();<a name="line.134"></a> +<span class="sourceLineNo">135</span> void updateWriteFailures(String regionName, String serverName);<a name="line.135"></a> +<span class="sourceLineNo">136</span> }<a name="line.136"></a> +<span class="sourceLineNo">137</span><a name="line.137"></a> +<span class="sourceLineNo">138</span> /**<a name="line.138"></a> +<span class="sourceLineNo">139</span> * Simple implementation of canary sink that allows plotting to a file or standard output.<a name="line.139"></a> +<span class="sourceLineNo">140</span> */<a name="line.140"></a> +<span class="sourceLineNo">141</span> public static class StdOutSink implements Sink {<a name="line.141"></a> +<span class="sourceLineNo">142</span> private AtomicLong readFailureCount = new AtomicLong(0),<a name="line.142"></a> +<span class="sourceLineNo">143</span> writeFailureCount = new AtomicLong(0);<a name="line.143"></a> +<span class="sourceLineNo">144</span> private Map<String, String> readFailures = new ConcurrentHashMap<>();<a name="line.144"></a> +<span class="sourceLineNo">145</span> private Map<String, String> writeFailures = new ConcurrentHashMap<>();<a name="line.145"></a> +<span class="sourceLineNo">146</span><a name="line.146"></a> +<span class="sourceLineNo">147</span> @Override<a name="line.147"></a> +<span class="sourceLineNo">148</span> public long getReadFailureCount() {<a name="line.148"></a> +<span class="sourceLineNo">149</span> return readFailureCount.get();<a name="line.149"></a> +<span class="sourceLineNo">150</span> }<a name="line.150"></a> +<span class="sourceLineNo">151</span><a name="line.151"></a> +<span class="sourceLineNo">152</span> @Override<a name="line.152"></a> +<span class="sourceLineNo">153</span> public long incReadFailureCount() {<a name="line.153"></a> +<span class="sourceLineNo">154</span> return readFailureCount.incrementAndGet();<a name="line.154"></a> +<span class="sourceLineNo">155</span> }<a name="line.155"></a> +<span class="sourceLineNo">156</span><a name="line.156"></a> +<span class="sourceLineNo">157</span> @Override<a name="line.157"></a> +<span class="sourceLineNo">158</span> public Map<String, String> getReadFailures() {<a name="line.158"></a> +<span class="sourceLineNo">159</span> return readFailures;<a name="line.159"></a> +<span class="sourceLineNo">160</span> }<a name="line.160"></a> +<span class="sourceLineNo">161</span><a name="line.161"></a> +<span class="sourceLineNo">162</span> @Override<a name="line.162"></a> +<span class="sourceLineNo">163</span> public void updateReadFailures(String regionName, String serverName) {<a name="line.163"></a> +<span class="sourceLineNo">164</span> readFailures.put(regionName, serverName);<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> @Override<a name="line.167"></a> +<span class="sourceLineNo">168</span> public long getWriteFailureCount() {<a name="line.168"></a> +<span class="sourceLineNo">169</span> return writeFailureCount.get();<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> @Override<a name="line.172"></a> +<span class="sourceLineNo">173</span> public long incWriteFailureCount() {<a name="line.173"></a> +<span class="sourceLineNo">174</span> return writeFailureCount.incrementAndGet();<a name="line.174"></a> +<span class="sourceLineNo">175</span> }<a name="line.175"></a> +<span class="sourceLineNo">176</span><a name="line.176"></a> +<span class="sourceLineNo">177</span> @Override<a name="line.177"></a> +<span class="sourceLineNo">178</span> public Map<String, String> getWriteFailures() {<a name="line.178"></a> +<span class="sourceLineNo">179</span> return writeFailures;<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> @Override<a name="line.182"></a> +<span class="sourceLineNo">183</span> public void updateWriteFailures(String regionName, String serverName) {<a name="line.183"></a> +<span class="sourceLineNo">184</span> writeFailures.put(regionName, serverName);<a name="line.184"></a> +<span class="sourceLineNo">185</span> }<a name="line.185"></a> +<span class="sourceLineNo">186</span> }<a name="line.186"></a> <span class="sourceLineNo">187</span><a name="line.187"></a> -<span class="sourceLineNo">188</span> public void publishReadTiming(String table, String server, long msTime) {<a name="line.188"></a> -<span class="sourceLineNo">189</span> LOG.info(String.format("Read from table:%s on region server:%s in %dms",<a name="line.189"></a> -<span class="sourceLineNo">190</span> table, server, msTime));<a name="line.190"></a> -<span class="sourceLineNo">191</span> }<a name="line.191"></a> -<span class="sourceLineNo">192</span> }<a name="line.192"></a> -<span class="sourceLineNo">193</span><a name="line.193"></a> -<span class="sourceLineNo">194</span> public static class ZookeeperStdOutSink extends StdOutSink {<a name="line.194"></a> -<span class="sourceLineNo">195</span><a name="line.195"></a> -<span class="sourceLineNo">196</span> public void publishReadFailure(String zNode, String server) {<a name="line.196"></a> -<span class="sourceLineNo">197</span> incReadFailureCount();<a name="line.197"></a> -<span class="sourceLineNo">198</span> LOG.error(String.format("Read from zNode:%s on zookeeper instance:%s", zNode, server));<a name="line.198"></a> +<span class="sourceLineNo">188</span> /**<a name="line.188"></a> +<span class="sourceLineNo">189</span> * By RegionServer, for 'regionserver' mode.<a name="line.189"></a> +<span class="sourceLineNo">190</span> */<a name="line.190"></a> +<span class="sourceLineNo">191</span> public static class RegionServerStdOutSink extends StdOutSink {<a name="line.191"></a> +<span class="sourceLineNo">192</span> public void publishReadFailure(String table, String server) {<a name="line.192"></a> +<span class="sourceLineNo">193</span> incReadFailureCount();<a name="line.193"></a> +<span class="sourceLineNo">194</span> LOG.error("Read from {} on {}", table, server);<a name="line.194"></a> +<span class="sourceLineNo">195</span> }<a name="line.195"></a> +<span class="sourceLineNo">196</span><a name="line.196"></a> +<span class="sourceLineNo">197</span> public void publishReadTiming(String table, String server, long msTime) {<a name="line.197"></a> +<span class="sourceLineNo">198</span> LOG.info("Read from {} on {} in {}ms", table, server, msTime);<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> public void publishReadTiming(String znode, String server, long msTime) {<a name="line.201"></a> -<span class="sourceLineNo">202</span> LOG.info(String.format("Read from zNode:%s on zookeeper instance:%s in %dms",<a name="line.202"></a> -<span class="sourceLineNo">203</span> znode, server, msTime));<a name="line.203"></a> -<span class="sourceLineNo">204</span> }<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> public static class RegionStdOutSink extends StdOutSink {<a name="line.207"></a> -<span class="sourceLineNo">208</span><a name="line.208"></a> -<span class="sourceLineNo">209</span> private Map<String, LongAdder> perTableReadLatency = new HashMap<>();<a name="line.209"></a> -<span class="sourceLineNo">210</span> private LongAdder writeLatency = new LongAdder();<a name="line.210"></a> -<span class="sourceLineNo">211</span><a name="line.211"></a> -<span class="sourceLineNo">212</span> public void publishReadFailure(ServerName serverName, RegionInfo region, Exception e) {<a name="line.212"></a> -<span class="sourceLineNo">213</span> incReadFailureCount();<a name="line.213"></a> -<span class="sourceLineNo">214</span> LOG.error(String.format("read from region %s on regionserver %s failed", region.getRegionNameAsString(), serverName), e);<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> public void publishReadFailure(ServerName serverName, RegionInfo region, ColumnFamilyDescriptor column, Exception e) {<a name="line.217"></a> -<span class="sourceLineNo">218</span> incReadFailureCount();<a name="line.218"></a> -<span class="sourceLineNo">219</span> LOG.error(String.format("read from region %s on regionserver %s column family %s failed",<a name="line.219"></a> -<span class="sourceLineNo">220</span> region.getRegionNameAsString(), serverName, column.getNameAsString()), e);<a name="line.220"></a> -<span class="sourceLineNo">221</span> }<a name="line.221"></a> +<span class="sourceLineNo">200</span> }<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> * Output for 'zookeeper' mode.<a name="line.203"></a> +<span class="sourceLineNo">204</span> */<a name="line.204"></a> +<span class="sourceLineNo">205</span> public static class ZookeeperStdOutSink extends StdOutSink {<a name="line.205"></a> +<span class="sourceLineNo">206</span> public void publishReadFailure(String znode, String server) {<a name="line.206"></a> +<span class="sourceLineNo">207</span> incReadFailureCount();<a name="line.207"></a> +<span class="sourceLineNo">208</span> LOG.error("Read from {} on {}", znode, server);<a name="line.208"></a> +<span class="sourceLineNo">209</span> }<a name="line.209"></a> +<span class="sourceLineNo">210</span><a name="line.210"></a> +<span class="sourceLineNo">211</span> public void publishReadTiming(String znode, String server, long msTime) {<a name="line.211"></a> +<span class="sourceLineNo">212</span> LOG.info("Read from {} on {} in {}ms", znode, server, msTime);<a name="line.212"></a> +<span class="sourceLineNo">213</span> }<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> /**<a name="line.216"></a> +<span class="sourceLineNo">217</span> * By Region, for 'region' mode.<a name="line.217"></a> +<span class="sourceLineNo">218</span> */<a name="line.218"></a> +<span class="sourceLineNo">219</span> public static class RegionStdOutSink extends StdOutSink {<a name="line.219"></a> +<span class="sourceLineNo">220</span> private Map<String, LongAdder> perTableReadLatency = new HashMap<>();<a name="line.220"></a> +<span class="sourceLineNo">221</span> private LongAdder writeLatency = new LongAdder();<a name="line.221"></a> <span class="sourceLineNo">222</span><a name="line.222"></a> -<span class="sourceLineNo">223</span> public void publishReadTiming(ServerName serverName, RegionInfo region, ColumnFamilyDescriptor column, long msTime) {<a name="line.223"></a> -<span class="sourceLineNo">224</span> LOG.info(String.format("read from region %s on regionserver %s column family %s in %dms",<a name="line.224"></a> -<span class="sourceLineNo">225</span> region.getRegionNameAsString(), serverName, column.getNameAsString(), msTime));<a name="line.225"></a> +<span class="sourceLineNo">223</span> public void publishReadFailure(ServerName serverName, RegionInfo region, Exception e) {<a name="line.223"></a> +<span class="sourceLineNo">224</span> incReadFailureCount();<a name="line.224"></a> +<span class="sourceLineNo">225</span> LOG.error("Read from {} on {} failed", region.getRegionNameAsString(), serverName, e);<a name="line.225"></a> <span class="sourceLineNo">226</span> }<a name="line.226"></a> <span class="sourceLineNo">227</span><a name="line.227"></a> -<span class="sourceLineNo">228</span> public void publishWriteFailure(ServerName serverName, RegionInfo region, Exception e) {<a name="line.228"></a> -<span class="sourceLineNo">229</span> incWriteFailureCount();<a name="line.229"></a> -<span class="sourceLineNo">230</span> LOG.error(String.format("write to region %s on regionserver %s failed", region.getRegionNameAsString(), serverName), e);<a name="line.230"></a> -<span class="sourceLineNo">231</span> }<a name="line.231"></a> -<span class="sourceLineNo">232</span><a name="line.232"></a> -<span class="sourceLineNo">233</span> public void publishWriteFailure(ServerName serverName, RegionInfo region, ColumnFamilyDescriptor column, Exception e) {<a name="line.233"></a> -<span class="sourceLineNo">234</span> incWriteFailureCount();<a name="line.234"></a> -<span class="sourceLineNo">235</span> LOG.error(String.format("write to region %s on regionserver %s column family %s failed",<a name="line.235"></a> -<span class="sourceLineNo">236</span> region.getRegionNameAsString(), serverName, column.getNameAsString()), e);<a name="line.236"></a> -<span class="sourceLineNo">237</span> }<a name="line.237"></a> -<span class="sourceLineNo">238</span><a name="line.238"></a> -<span class="sourceLineNo">239</span> public void publishWriteTiming(ServerName serverName, RegionInfo region, ColumnFamilyDescriptor column, long msTime) {<a name="line.239"></a> -<span class="sourceLineNo">240</span> LOG.info(String.format("write to region %s on regionserver %s column family %s in %dms",<a name="line.240"></a> -<span class="sourceLineNo">241</span> region.getRegionNameAsString(), serverName, column.getNameAsString(), msTime));<a name="line.241"></a> -<span class="sourceLineNo">242</span> }<a name="line.242"></a> -<span class="sourceLineNo">243</span><a name="line.243"></a> -<span class="sourceLineNo">244</span> public Map<String, LongAdder> getReadLatencyMap() {<a name="line.244"></a> -<span class="sourceLineNo">245</span> return this.perTableReadLatency;<a name="line.245"></a> -<span class="sourceLineNo">246</span> }<a name="line.246"></a> -<span class="sourceLineNo">247</span><a name="line.247"></a> -<span class="sourceLineNo">248</span> public LongAdder initializeAndGetReadLatencyForTable(String tableName) {<a name="line.248"></a> -<span class="sourceLineNo">249</span> LongAdder initLatency = new LongAdder();<a name="line.249"></a> -<span class="sourceLineNo">250</span> this.perTableReadLatency.put(tableName, initLatency);<a name="line.250"></a> -<span class="sourceLineNo">251</span> return initLatency;<a name="line.251"></a> -<span class="sourceLineNo">252</span> }<a name="line.252"></a> -<span class="sourceLineNo">253</span><a name="line.253"></a> -<span class="sourceLineNo">254</span> public void initializeWriteLatency() {<a name="line.254"></a> -<span class="sourceLineNo">255</span> this.writeLatency.reset();<a name="line.255"></a> -<span class="sourceLineNo">256</span> }<a name="line.256"></a> -<span class="sourceLineNo">257</span><a name="line.257"></a> -<span class="sourceLineNo">258</span> public LongAdder getWriteLatency() {<a name="line.258"></a> -<span class="sourceLineNo">259</span> return this.writeLatency;<a name="line.259"></a> -<span class="sourceLineNo">260</span> }<a name="line.260"></a> -<span class="sourceLineNo">261</span> }<a name="line.261"></a> +<span class="sourceLineNo">228</span> public void publishReadFailure(ServerName serverName, RegionInfo region,<a name="line.228"></a> +<span class="sourceLineNo">229</span> ColumnFamilyDescriptor column, Exception e) {<a name="line.229"></a> +<span class="sourceLineNo">230</span> incReadFailureCount();<a name="line.230"></a> +<span class="sourceLineNo">231</span> LOG.error("Read from {} on {} {} failed", region.getRegionNameAsString(), serverName,<a name="line.231"></a> +<span class="sourceLineNo">232</span> column.getNameAsString(), e);<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> public void publishReadTiming(ServerName serverName, RegionInfo region,<a name="line.235"></a> +<span class="sourceLineNo">236</span> ColumnFamilyDescriptor column, long msTime) {<a name="line.236"></a> +<span class="sourceLineNo">237</span> LOG.info("Read from {} on {} {} in {}ms", region.getRegionNameAsString(), serverName,<a name="line.237"></a> +<span class="sourceLineNo">238</span> column.getNameAsString(), msTime);<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> public void publishWriteFailure(ServerName serverName, RegionInfo region, Exception e) {<a name="line.241"></a> +<span class="sourceLineNo">242</span> incWriteFailureCount();<a name="line.242"></a> +<span class="sourceLineNo">243</span> LOG.error("Write to {} on {} failed", region.getRegionNameAsString(), serverName, e);<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> public void publishWriteFailure(ServerName serverName, RegionInfo region,<a name="line.246"></a> +<span class="sourceLineNo">247</span> ColumnFamilyDescriptor column, Exception e) {<a name="line.247"></a> +<span class="sourceLineNo">248</span> incWriteFailureCount();<a name="line.248"></a> +<span class="sourceLineNo">249</span> LOG.error("Write to {} on {} {} failed", region.getRegionNameAsString(), serverName,<a name="line.249"></a> +<span class="sourceLineNo">250</span> column.getNameAsString(), e);<a name="line.250"></a> +<span class="sourceLineNo">251</span> }<a name="line.251"></a> +<span class="sourceLineNo">252</span><a name="line.252"></a> +<span class="sourceLineNo">253</span> public void publishWriteTiming(ServerName serverName, RegionInfo region,<a name="line.253"></a> +<span class="sourceLineNo">254</span> ColumnFamilyDescriptor column, long msTime) {<a name="line.254"></a> +<span class="sourceLineNo">255</span> LOG.info("Write to {} on {} {} in {}ms",<a name="line.255"></a> +<span class="sourceLineNo">256</span> region.getRegionNameAsString(), serverName, column.getNameAsString(), msTime);<a name="line.256"></a> +<span class="sourceLineNo">257</span> }<a name="line.257"></a> +<span class="sourceLineNo">258</span><a name="line.258"></a> +<span class="sourceLineNo">259</span> public Map<String, LongAdder> getReadLatencyMap() {<a name="line.259"></a> +<span class="sourceLineNo">260</span> return this.perTableReadLatency;<a name="line.260"></a> +<span class="sourceLineNo">261</span> }<a name="line.261"></a> <span class="sourceLineNo">262</span><a name="line.262"></a> -<span class="sourceLineNo">263</span> static class ZookeeperTask implements Callable<Void> {<a name="line.263"></a> -<span class="sourceLineNo">264</span> private final Connection connection;<a name="line.264"></a> -<span class="sourceLineNo">265</span> private final String host;<a name="line.265"></a> -<span class="sourceLineNo">266</span> private String znode;<a name="line.266"></a> -<span class="sourceLineNo">267</span> private final int timeout;<a name="line.267"></a> -<span class="sourceLineNo">268</span> private ZookeeperStdOutSink sink;<a name="line.268"></a> -<span class="sourceLineNo">269</span><a name="line.269"></a> -<span class="sourceLineNo">270</span> public ZookeeperTask(Connection connection, String host, String znode, int timeout,<a name="line.270"></a> -<span class="sourceLineNo">271</span> ZookeeperStdOutSink sink) {<a name="line.271"></a> -<span class="sourceLineNo">272</span> this.connection = connection;<a name="line.272"></a> -<span class="sourceLineNo">273</span> this.host = host;<a name="line.273"></a> -<span class="sourceLineNo">274</span> this.znode = znode;<a name="line.274"></a> -<span class="sourceLineNo">275</span> this.timeout = timeout;<a name="line.275"></a> -<span class="sourceLineNo">276</span> this.sink = sink;<a name="line.276"></a> -<span class="sourceLineNo">277</span> }<a name="line.277"></a> -<span class="sourceLineNo">278</span><a name="line.278"></a> -<span class="sourceLineNo">279</span> @Override public Void call() throws Exception {<a name="line.279"></a> -<span class="sourceLineNo">280</span> ZooKeeper zooKeeper = null;<a name="line.280"></a> -<span class="sourceLineNo">281</span> try {<a name="line.281"></a> -<span class="sourceLineNo">282</span> zooKeeper = new ZooKeeper(host, timeout, EmptyWatcher.instance);<a name="line.282"></a> -<span class="sourceLineNo">283</span> Stat exists = zooKeeper.exists(znode, false);<a name="line.283"></a> -<span class="sourceLineNo">284</span> StopWatch stopwatch = new StopWatch();<a name="line.284"></a> -<span class="sourceLineNo">285</span> stopwatch.start();<a name="line.285"></a> -<span class="sourceLineNo">286</span> zooKeeper.getData(znode, false, exists);<a name="line.286"></a> -<span class="sourceLineNo">287</span> stopwatch.stop();<a name="line.287"></a> -<span class="sourceLineNo">288</span> sink.publishReadTiming(znode, host, stopwatch.getTime());<a name="line.288"></a> -<span class="sourceLineNo">289</span> } catch (KeeperException | InterruptedException e) {<a name="line.289"></a> -<span class="sourceLineNo">290</span> sink.publishReadFailure(znode, host);<a name="line.290"></a> -<span class="sourceLineNo">291</span> } finally {<a name="line.291"></a> -<span class="sourceLineNo">292</span> if (zooKeeper != null) {<a name="line.292"></a> -<span class="sourceLineNo">293</span> zooKeeper.close();<a name="line.293"></a> -<span class="sourceLineNo">294</span> }<a name="line.294"></a> -<span class="sourceLineNo">295</span> }<a name="line.295"></a> -<span class="sourceLineNo">296</span> return null;<a name="line.296"></a> -<span class="sourceLineNo">297</span> }<a name="line.297"></a> -<span class="sourceLineNo">298</span> }<a name="line.298"></a> -<span class="sourceLineNo">299</span><a name="line.299"></a> -<span class="sourceLineNo">300</span> /**<a name="line.300"></a> -<span class="sourceLineNo">301</span> * For each column family of the region tries to get one row and outputs the latency, or the<a name="line.301"></a> -<span class="sourceLineNo">302</span> * failure.<a name="line.302"></a> -<span class="sourceLineNo">303</span> */<a name="line.303"></a> -<span class="sourceLineNo">304</span> static class RegionTask implements Callable<Void> {<a name="line.304"></a> -<span class="sourceLineNo">305</span> public enum TaskType{<a name="line.305"></a> -<span class="sourceLineNo">306</span> READ, WRITE<a name="line.306"></a> -<span class="sourceLineNo">307</span> }<a name="line.307"></a> -<span class="sourceLineNo">308</span> private Connection connection;<a name="line.308"></a> -<span class="sourceLineNo">309</span> private RegionInfo region;<a name="line.309"></a> -<span class="sourceLineNo">310</span> private RegionStdOutSink sink;<a name="line.310"></a> -<span class="sourceLineNo">311</span> private TaskType taskType;<a name="line.311"></a> -<span class="sourceLineNo">312</span> private boolean rawScanEnabled;<a name="line.312"></a> -<span class="sourceLineNo">313</span> private ServerName serverName;<a name="line.313"></a> -<span class="sourceLineNo">314</span> private LongAdder readWriteLatency;<a name="line.314"></a> -<span class="sourceLineNo">315</span><a name="line.315"></a> -<span class="sourceLineNo">316</span> RegionTask(Connection connection, RegionInfo region, ServerName serverName, RegionStdOutSink sink,<a name="line.316"></a> -<span class="sourceLineNo">317</span> TaskType taskType, boolean rawScanEnabled, LongAdder rwLatency) {<a name="line.317"></a> -<span class="sourceLineNo">318</span> this.connection = connection;<a name="line.318"></a> -<span class="sourceLineNo">319</span> this.region = region;<a name="line.319"></a> -<span class="sourceLineNo">320</span> this.serverName = serverName;<a name="line.320"></a> -<span class="sourceLineNo">321</span> this.sink = sink;<a name="line.321"></a> -<span class="sourceLineNo">322</span> this.taskType = taskType;<a name="line.322"></a> -<span class="sourceLineNo">323</span> this.rawScanEnabled = rawScanEnabled;<a name="line.323"></a> -<span class="sourceLineNo">324</span> this.readWriteLatency = rwLatency;<a name="line.324"></a> +<span class="sourceLineNo">263</span> public LongAdder initializeAndGetReadLatencyForTable(String tableName) {<a name="line.263"></a> +<span class="sourceLineNo">264</span> LongAdder initLatency = new LongAdder();<a name="line.264"></a> +<span class="sourceLineNo">265</span> this.perTableReadLatency.put(tableName, initLatency);<a name="line.265"></a> +<span class="sourceLineNo">266</span> return initLatency;<a name="line.266"></a> +<span class="sourceLineNo">267</span> }<a name="line.267"></a> +<span class="sourceLineNo">268</span><a name="line.268"></a> +<span class="sourceLineNo">269</span> public void initializeWriteLatency() {<a name="line.269"></a> +<span class="sourceLineNo">270</span> this.writeLatency.reset();<a name="line.270"></a> +<span class="sourceLineNo">271</span> }<a name="line.271"></a> +<span class="sourceLineNo">272</span><a name="line.272"></a> +<span class="sourceLineNo">273</span> public LongAdder getWriteLatency() {<a name="line.273"></a> +<span class="sourceLineNo">274</span> return this.writeLatency;<a name="line.274"></a> +<span class="sourceLineNo">275</span> }<a name="line.275"></a> +<span class="sourceLineNo">276</span> }<a name="line.276"></a> +<span class="sourceLineNo">277</span><a name="line.277"></a> +<span class="sourceLineNo">278</span> /**<a name="line.278"></a> +<span class="sourceLineNo">279</span> * Run a single zookeeper Task and then exit.<a name="line.279"></a> +<span class="sourceLineNo">280</span> */<a name="line.280"></a> +<span class="sourceLineNo">281</span> static class ZookeeperTask implements Callable<Void> {<a name="line.281"></a> +<span class="sourceLineNo">282</span> private final Connection connection;<a name="line.282"></a> +<span class="sourceLineNo">283</span> private final String host;<a name="line.283"></a> +<span class="sourceLineNo">284</span> private String znode;<a name="line.284"></a> +<span class="sourceLineNo">285</span> private final int timeout;<a name="line.285"></a> +<span class="sourceLineNo">286</span> private ZookeeperStdOutSink sink;<a name="line.286"></a> +<span class="sourceLineNo">287</span><a name="line.287"></a> +<span class="sourceLineNo">288</span> public ZookeeperTask(Connection connection, String host, String znode, int timeout,<a name="line.288"></a> +<span class="sourceLineNo">289</span> ZookeeperStdOutSink sink) {<a name="line.289"></a> +<span class="sourceLineNo">290</span> this.connection = connection;<a name="line.290"></a> +<span class="sourceLineNo">291</span> this.host = host;<a name="line.291"></a> +<span class="sourceLineNo">292</span> this.znode = znode;<a name="line.292"></a> +<span class="sourceLineNo">293</span> this.timeout = timeout;<a name="line.293"></a> +<span class="sourceLineNo">294</span> this.sink = sink;<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 public Void call() throws Exception {<a name="line.297"></a> +<span class="sourceLineNo">298</span> ZooKeeper zooKeeper = null;<a name="line.298"></a> +<span class="sourceLineNo">299</span> try {<a name="line.299"></a> +<span class="sourceLineNo">300</span> zooKeeper = new ZooKeeper(host, timeout, EmptyWatcher.instance);<a name="line.300"></a> +<span class="sourceLineNo">301</span> Stat exists = zooKeeper.exists(znode, false);<a name="line.301"></a> +<span class="sourceLineNo">302</span> StopWatch stopwatch = new StopWatch();<a name="line.302"></a> +<span class="sourceLineNo">303</span> stopwatch.start();<a name="line.303"></a> +<span class="sourceLineNo">304</span> zooKeeper.getData(znode, false, exists);<a name="line.304"></a> +<span class="sourceLineNo">305</span> stopwatch.stop();<a name="line.305"></a> +<span class="sourceLineNo">306</span> sink.publishReadTiming(znode, host, stopwatch.getTime());<a name="line.306"></a> +<span class="sourceLineNo">307</span> } catch (KeeperException | InterruptedException e) {<a name="line.307"></a> +<span class="sourceLineNo">308</span> sink.publishReadFailure(znode, host);<a name="line.308"></a> +<span class="sourceLineNo">309</span> } finally {<a name="line.309"></a> +<span class="sourceLineNo">310</span> if (zooKeeper != null) {<a name="line.310"></a> +<span class="sourceLineNo">311</span> zooKeeper.close();<a name="line.311"></a> +<span class="sourceLineNo">312</span> }<a name="line.312"></a> +<span class="sourceLineNo">313</span> }<a name="line.313"></a> +<span class="sourceLineNo">314</span> return null;<a name="line.314"></a> +<span class="sourceLineNo">315</span> }<a name="line.315"></a> +<span class="sourceLineNo">316</span> }<a name="line.316"></a> +<span class="sourceLineNo">317</span><a name="line.317"></a> +<span class="sourceLineNo">318</span> /**<a name="line.318"></a> +<span class="sourceLineNo">319</span> * Run a single Region Task and then exit. For each column family of the Region, get one row and<a name="line.319"></a> +<span class="sourceLineNo">320</span> * output latency or failure.<a name="line.320"></a> +<span class="sourceLineNo">321</span> */<a name="line.321"></a> +<span class="sourceLineNo">322</span> static class RegionTask implements Callable<Void> {<a name="line.322"></a> +<span class="sourceLineNo">323</span> public enum TaskType{<a name="line.323"></a> +<span class="sourceLineNo">324</span> READ, WRITE<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> @Override<a name="line.327"></a> -<span class="sourceLineNo">328</span> public Void call() {<a name="line.328"></a> -<span class="sourceLineNo">329</span> switch (taskType) {<a name="line.329"></a> -<span class="sourceLineNo">330</span> case READ:<a name="line.330"></a> -<span class="sourceLineNo">331</span> return read();<a name="line.331"></a> -<span class="sourceLineNo">332</span> case WRITE:<a name="line.332"></a> -<span class="sourceLineNo">333</span> return write();<a name="line.333"></a> -<span class="sourceLineNo">334</span> default:<a name="line.334"></a> -<span class="sourceLineNo">335</span> return read();<a name="line.335"></a> -<span class="sourceLineNo">336</span> }<a name="line.336"></a> -<span class="sourceLineNo">337</span> }<a name="line.337"></a> -<span class="sourceLineNo">338</span><a name="line.338"></a> -<span class="sourceLineNo">339</span> public Void read() {<a name="line.339"></a> -<span class="sourceLineNo">340</span> Table table = null;<a name="line.340"></a> -<span class="sourceLineNo">341</span> TableDescriptor tableDesc = null;<a name="line.341"></a> -<span class="sourceLineNo">342</span> try {<a name="line.342"></a> -<span class="sourceLineNo">343</span> if (LOG.isDebugEnabled()) {<a name="line.343"></a> -<span class="sourceLineNo">344</span> LOG.debug(String.format("reading table descriptor for table %s",<a name="line.344"></a> -<span class="sourceLineNo">345</span> region.getTable()));<a name="line.345"></a> -<span class="sourceLineNo">346</span> }<a name="line.346"></a> -<span class="sourceLineNo">347</span> table = connection.getTable(region.getTable());<a name="line.347"></a> -<span class="sourceLineNo">348</span> tableDesc = table.getDescriptor();<a name="line.348"></a> -<span class="sourceLineNo">349</span> } catch (IOException e) {<a name="line.349"></a> -<span class="sourceLineNo">350</span> LOG.debug("sniffRegion failed", e);<a name="line.350"></a> -<span class="sourceLineNo">351</span> sink.publishReadFailure(serverName, region, e);<a name="line.351"></a> -<span class="sourceLineNo">352</span> if (table != null) {<a name="line.352"></a> -<span class="sourceLineNo">353</span> try {<a name="line.353"></a> -<span class="sourceLineNo">354</span> table.close();<a name="line.354"></a> -<span 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table.getDescriptor();<a name="line.435"></a> -<span class="sourceLineNo">436</span> byte[] rowToCheck = region.getStartKey();<a name="line.436"></a> -<span class="sourceLineNo">437</span> if (rowToCheck.length == 0) {<a name="line.437"></a> -<span class="sourceLineNo">438</span> rowToCheck = new byte[]{0x0};<a name="line.438"></a> -<span class="sourceLineNo">439</span> }<a name="line.439"></a> -<span class="sourceLineNo">440</span> int writeValueSize =<a name="line.440"></a> -<span class="sourceLineNo">441</span> connection.getConfiguration().getInt(HConstants.HBASE_CANARY_WRITE_VALUE_SIZE_KEY, 10);<a name="line.441"></a> -<span class="sourceLineNo">442</span> for (ColumnFamilyDescriptor column : tableDesc.getColumnFamilies()) {<a name="line.442"></a> -<span class="sourceLineNo">443</span> Put put = new Put(rowToCheck);<a name="line.443"></a> -<span class="sourceLineNo">444</span> byte[] value = new byte[writeValueSize];<a name="line.444"></a> -<span class="sourceLineNo">445</span> Bytes.random(value);<a name="line.445"></a> -<span class="sourceLineNo">446</span> put.addColumn(column.getName(), HConstants.EMPTY_BYTE_ARRAY, value);<a name="line.446"></a> -<span class="sourceLineNo">447</span><a name="line.447"></a> -<span class="sourceLineNo">448</span> if (LOG.isDebugEnabled()) {<a name="line.448"></a> -<span class="sourceLineNo">449</span> LOG.debug(String.format("writing to table %s region %s column family %s and key %s",<a name="line.449"></a> -<span class="sourceLineNo">450</span> tableDesc.getTableName(), region.getRegionNameAsString(), column.getNameAsString(),<a name="line.450"></a> -<span class="sourceLineNo">451</span> Bytes.toStringBinary(rowToCheck)));<a name="line.451"></a> -<span class="sourceLineNo">452</span> }<a name="line.452"></a> -<span class="sourceLineNo">453</span> try {<a name="line.453"></a> -<span class="sourceLineNo">454</span> long startTime = System.currentTimeMillis();<a name="line.454"></a> -<span class="sourceLineNo">455</span> 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class="sourceLineNo">477</span> private String serverName;<a name="line.477"></a> -<span class="sourceLineNo">478</span> private RegionInfo region;<a name="line.478"></a> -<span class="sourceLineNo">479</span> private RegionServerStdOutSink sink;<a name="line.479"></a> -<span class="sourceLineNo">480</span> private AtomicLong successes;<a name="line.480"></a> -<span class="sourceLineNo">481</span><a name="line.481"></a> -<span class="sourceLineNo">482</span> RegionServerTask(Connection connection, String serverName, RegionInfo region,<a name="line.482"></a> -<span class="sourceLineNo">483</span> RegionServerStdOutSink sink, AtomicLong successes) {<a name="line.483"></a> -<span class="sourceLineNo">484</span> this.connection = connection;<a name="line.484"></a> -<span class="sourceLineNo">485</span> this.serverName = serverName;<a name="line.485"></a> -<span class="sourceLineNo">486</span> this.region = region;<a name="line.486"></a> -<span class="sourceLineNo">487</span> this.sink = sink;<a name="line.487"></a> -<span class="sourceLineNo">488</span> this.successes = successes;<a name="line.488"></a> -<span class="sourceLineNo">489</span> }<a name="line.489"></a> -<span class="sourceLineNo">490</span><a name="line.490"></a> -<span class="sourceLineNo">491</span> @Override<a name="line.491"></a> -<span class="sourceLineNo">492</span> public Void call() {<a name="line.492"></a> -<span class="sourceLineNo">493</span> TableName tableName = null;<a name="line.493"></a> -<span class="sourceLineNo">494</span> Table table = null;<a name="line.494"></a> -<span class="sourceLineNo">495</span> Get get = null;<a name="line.495"></a> -<span class="sourceLineNo">496</span> byte[] startKey = null;<a name="line.496"></a> -<span class="sourceLineNo">497</span> Scan scan = null;<a name="line.497"></a> -<span class="sourceLineNo">498</span> StopWatch stopWatch = new StopWatch();<a name="line.498"></a> -<span class="sourceLineNo">499</span> // monitor one region on every region 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class="sourceLineNo">509</span> Bytes.toStringBinary(startKey)));<a name="line.509"></a> -<span class="sourceLineNo">510</span> }<a name="line.510"></a> -<span class="sourceLineNo">511</span> if (startKey.length > 0) {<a name="line.511"></a> -<span class="sourceLineNo">512</span> get = new Get(startKey);<a name="line.512"></a> -<span class="sourceLineNo">513</span> get.setCacheBlocks(false);<a name="line.513"></a> -<span class="sourceLineNo">514</span> get.setFilter(new FirstKeyOnlyFilter());<a name="line.514"></a> -<span class="sourceLineNo">515</span> stopWatch.start();<a name="line.515"></a> -<span class="sourceLineNo">516</span> table.get(get);<a name="line.516"></a> -<span class="sourceLineNo">517</span> stopWatch.stop();<a name="line.517"></a> -<span class="sourceLineNo">518</span> } else {<a name="line.518"></a> -<span class="sourceLineNo">519</span> scan = new Scan();<a name="line.519"></a> -<span class="sourceLineNo">520</span> scan.setCacheBlocks(false);<a 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sink.publishReadTiming(tableName.getNameAsString(), serverName, stopWatch.getTime());<a name="line.532"></a> -<span class="sourceLineNo">533</span> } catch (TableNotFoundException tnfe) {<a name="line.533"></a> -<span class="sourceLineNo">534</span> LOG.error("Table may be deleted", tnfe);<a name="line.534"></a> -<span class="sourceLineNo">535</span> // This is ignored because it doesn't imply that the regionserver is dead<a name="line.535"></a> -<span class="sourceLineNo">536</span> } catch (TableNotEnabledException tnee) {<a name="line.536"></a> -<span class="sourceLineNo">537</span> // This is considered a success since we got a response.<a name="line.537"></a> -<span class="sourceLineNo">538</span> successes.incrementAndGet();<a name="line.538"></a> -<span class="sourceLineNo">539</span> LOG.debug("The targeted table was disabled. Assuming success.");<a name="line.539"></a> -<span class="sourceLineNo">540</span> } catch (DoNotRetryIOException dnrioe) {<a name="line.540"></a> -<span class="sourceLineNo">541</span> sink.publishReadFailure(tableName.getNameAsString(), serverName);<a name="line.541"></a> -<span class="sourceLineNo">542</span> LOG.error(dnrioe.toString(), dnrioe);<a name="line.542"></a> -<span class="sourceLineNo">543</span> } catch (IOException e) {<a name="line.543"></a> -<span class="sourceLineNo">544</span> sink.publishReadFailure(tableName.getNameAsString(), serverName);<a name="line.544"></a> -<span class="sourceLineNo">545</span> LOG.error(e.toString(), e);<a name="line.545"></a> -<span class="sourceLineNo">546</span> } finally {<a name="line.546"></a> -<span class="sourceLineNo">547</span> if (table != null) {<a name="line.547"></a> -<span class="sourceLineNo">548</span> try {<a name="line.548"></a> -<span class="sourceLineNo">549</span> table.close();<a name="line.549"></a> -<span class="sourceLineNo">550</span> } catch (IOException e) {/* DO NOTHING */<a name="line.550"></a> -<span class="sourceLineNo">551</span> LOG.error("Close table failed", e);<a name="line.551"></a> -<span class="sourceLineNo">552</span> }<a name="line.552"></a> -<span class="sourceLineNo">553</span> }<a name="line.553"></a> -<span class="sourceLineNo">554</span> scan = null;<a name="line.554"></a> -<span class="sourceLineNo">555</span> get = null;<a name="line.555"></a> -<span class="sourceLineNo">556</span> startKey = null;<a name="line.556"></a> -<span class="sourceLineNo">557</span> }<a name="line.557"></a> -<span class="sourceLineNo">558</span> return null;<a name="line.558"></a> -<span class="sourceLineNo">559</span> }<a name="line.559"></a> -<span class="sourceLineNo">560</span> }<a name="line.560"></a> -<span class="sourceLineNo">561</span><a name="line.561"></a> -<span class="sourceLineNo">562</span> private static final int USAGE_EXIT_CODE = 1;<a name="line.562"></a> -<span class="sourceLineNo">563</span> private static final int INIT_ERROR_EXIT_CODE = 2;<a name="line.563"></a> -<span class="sourceLineNo">564</span> private static final int TIMEOUT_ERROR_EXIT_CODE = 3;<a name="line.564"></a> -<span class="sourceLineNo">565</span> private static final int ERROR_EXIT_CODE = 4;<a name="line.565"></a> -<span class="sourceLineNo">566</span> private static final int FAILURE_EXIT_CODE = 5;<a name="line.566"></a> -<span class="sourceLineNo">567</span><a name="line.567"></a> -<span class="sourceLineNo">568</span> private static final long DEFAULT_INTERVAL = 60000;<a name="line.568"></a> -<span class="sourceLineNo">569</span><a name="line.569"></a> -<span class="sourceLineNo">570</span> private static final long DEFAULT_TIMEOUT = 600000; // 10 mins<a name="line.570"></a> -<span class="sourceLineNo">571</span> private static final int MAX_THREADS_NUM = 16; // #threads to contact regions<a name="line.571"></a> +<span class="sourceLineNo">326</span> private Connection connection;<a name="line.326"></a> +<span class="sourceLineNo">327</span> private RegionInfo region;<a name="line.327"></a> +<span class="sourceLineNo">328</span> private RegionStdOutSink sink;<a name="line.328"></a> +<span class="sourceLineNo">329</span> private TaskType taskType;<a name="line.329"></a> +<span class="sourceLineNo">330</span> private boolean rawScanEnabled;<a name="line.330"></a> +<span class="sourceLineNo">331</span> private ServerName serverName;<a name="line.331"></a> +<span class="sourceLineNo">332</span> private LongAdder readWriteLatency;<a name="line.332"></a> +<span class="sourceLineNo">333</span><a name="line.333"></a> +<span class="sourceLineNo">334</span> RegionTask(Connection connection, RegionInfo region, ServerName serverName,<a name="line.334"></a> +<span class="sourceLineNo">335</span> RegionStdOutSink sink, TaskType taskType, boolean rawScanEnabled, LongAdder rwLatency) {<a name="line.335"></a> +<span class="sourceLineNo">336</span> this.connection = connection;<a name="line.336"></a> +<span class="sourceLineNo">337</span> this.region = region;<a name="line.337"></a> +<span class="sourceLineNo">338</span> this.serverName = serverName;<a name="line.338"></a> +<span class="sourceLineNo">339</span> this.sink = sink;<a name="line.339"></a> +<span class="sourceLineNo">340</span> this.taskType = taskType;<a name="line.340"></a> +<span class="sourceLineNo">341</span> this.rawScanEnabled = rawScanEnabled;<a name="line.341"></a> +<span class="sourceLineNo">342</span> this.readWriteLatency = rwLatency;<a name="line.342"></a> +<span class="sourceLineNo">343</span> }<a name="line.343"></a> +<span class="sourceLineNo">344</span><a name="line.344"></a> +<span class="sourceLineNo">345</span> @Override<a name="line.345"></a> +<span class="sourceLineNo">346</span> public Void call() {<a name="line.346"></a> +<span class="sourceLineNo">347</span> switch (taskType) {<a name="line.347"></a> +<span class="sourceLineNo">348</span> case READ:<a name="line.348"></a> +<span class="sourceLineNo">349</span> return read();<a name="line.349"></a> +<span class="sourceLineNo">350</span> case WRITE:<a name="line.350"></a> +<span class="sourceLineNo">351</span> return write();<a name="line.351"></a> +<span class="sourceLineNo">352</span> default:<a name="line.352"></a> +<span class="sourceLineNo">353</span> return read();<a name="line.353"></a> +<span class="sourceLineNo">354</span> }<a name="line.354"></a> +<span class="sourceLineNo">355</span> }<a name="line.355"></a> +<span class="sourceLineNo">356</span><a name="line.356"></a> +<span class="sourceLineNo">357</span> public Void read() {<a name="line.357"></a> +<span class="sourceLineNo">358</span> Table table = null;<a name="line.358"></a> +<span class="sourceLineNo">359</span> TableDescriptor tableDesc = null;<a name="line.359"></a> +<span class="sourceLineNo">360</span> try {<a name="line.360"></a> +<span class="sourceLineNo">361</span> LOG.debug("Reading table descriptor for table {}", region.getTable());<a name="line.361"></a> +<span class="sourceLineNo">362</span> table = connection.getTable(region.getTable());<a name="line.362"></a> +<span class="sourceLineNo">363</span> tableDesc = table.getDescriptor();<a name="line.363"></a> +<span class="sourceLineNo">364</span> } catch (IOException e) {<a name="line.364"></a> +<span class="sourceLineNo">365</span> LOG.debug("sniffRegion {} of {} failed", region.getEncodedName(), e);<a name="line.365"></a> +<span class="sourceLineNo">366</span> sink.publishReadFailure(serverName, region, e);<a name="line.366"></a> +<span class="sourceLineNo">367</span> if (table != null) {<a name="line.367"></a> +<span class="sourceLineNo">368</span> try {<a name="line.368"></a> +<span class="sourceLineNo">369</span> table.close();<a name="line.369"></a> +<span class="sourceLineNo">370</span> } catch (IOException ioe) {<a name="line.370"></a> +<span class="sourceLineNo">371</span> LOG.error("Close table failed", e);<a name="line.371"></a> +<span class="sourceLineNo">372</span> }<a name="line.372"></a> +<span class="sourceLineNo">373</span> }<a name="line.373"></a> +<span class="sourceLineNo">374</span> return null;<a name="line.374"></a> +<span class="sourceLineNo">375</span> }<a name="line.375"></a> +<span class="sourceLineNo">376</span><a name="line.376"></a> +<span class="sourceLineNo">377</span> byte[] startKey = null;<a name="line.377"></a> +<span class="sourceLineNo">378</span> Get get = null;<a name="line.378"></a> +<span class="sourceLineNo">379</span> Scan scan = null;<a name="line.379"></a> +<span class="sourceLineNo">380</span> ResultScanner rs = null;<a name="line.380"></a> +<span class="sourceLineNo">381</span> StopWatch stopWatch = new StopWatch();<a name="line.381"></a> +<span class="sourceLineNo">382</span> for (ColumnFamilyDescriptor column : tableDesc.getColumnFamilies()) {<a name="line.382"></a> +<span class="sourceLineNo">383</span> stopWatch.reset();<a name="line.383"></a> +<span class="sourceLineNo">384</span> startKey = region.getStartKey();<a name="line.384"></a> +<span class="sourceLineNo">385</span> // Can't do a get on empty start row so do a Scan of first element if any instead.<a name="line.385"></a> +<span class="sourceLineNo">386</span> if (startKey.length > 0) {<a name="line.386"></a> +<span class="sourceLineNo">387</span> get = new Get(startKey);<a name="line.387"></a> +<span class="sourceLineNo">388</span> get.setCacheBlocks(false);<a name="line.388"></a> +<span class="sourceLineNo">389</span> get.setFilter(new FirstKeyOnlyFilter());<a name="line.389"></a> +<span class="sourceLineNo">390</span> get.addFamily(column.getName());<a name="line.390"></a> +<span class="sourceLineNo">391</span> } else {<a name="line.391"></a> +<span class="sourceLineNo">392</span> scan = new Scan();<a name="line.392"></a> +<span class="sourceLineNo">393</span> LOG.debug("rawScan {} for {}", rawScanEnabled, tableDesc.getTableName());<a name="line.393"></a> +<span class="sourceLineNo">394</span> scan.setRaw(rawScanEnabled);<a name="line.394"></a> +<span class="sourceLineNo">395</span> scan.setCaching(1);<a name="line.395"></a> +<span class="sourceLineNo">396</span> scan.setCacheBlocks(false);<a name="line.396"></a> +<span class="sourceLineNo">397</span> scan.setFilter(new FirstKeyOnlyFilter());<a name="line.397"></a> +<span class="sourceLineNo">398</span> scan.addFamily(column.getName());<a name="line.398"></a> +<span class="sourceLineNo">399</span> scan.setMaxResultSize(1L);<a name="line.399"></a> +<span class="sourceLineNo">400</span> scan.setOneRowLimit();<a name="line.400"></a> +<span class="sourceLineNo">401</span> }<a name="line.401"></a> +<span class="sourceLineNo">402</span> LOG.debug("Reading from {} {} {} {}", tableDesc.getTableName(),<a name="line.402"></a> +<span class="sourceLineNo">403</span> region.getRegionNameAsString(), column.getNameAsString(),<a name="line.403"></a> +<span class="sourceLineNo">404</span> Bytes.toStringBinary(startKey));<a name="line.404"></a> +<span class="sourceLineNo">405</span> try {<a name="line.405"></a> +<span class="sourceLineNo">406</span> stopWatch.start();<a name="line.406"></a> +<span class="sourceLineNo">407</span> if (startKey.length > 0) {<a name="line.407"></a> +<span class="sourceLineNo">408</span> table.get(get);<a name="line.408"></a> +<span class="sourceLineNo">409</span> } else {<a name="line.409"></a> +<span class="sourceLineNo">410</span> rs = table.getScanner(scan);<a name="line.410"></a> +<span class="sourceLineNo">411</span> rs.next();<a name="line.411"></a> +<span class="sourceLineNo">412</span> }<a name="line.412"></a> +<span class="sourceLineNo">413</span> stopWatch.stop();<a name="line.413"></a> +<span class="sourceLineNo">414</span> this.readWriteLatency.add(stopWatch.getTime());<a name="line.414"></a> +<span class="sourceLineNo">415</span> sink.publishReadTiming(serverName, region, column, stopWatch.getTime());<a name="line.415"></a> +<span class="sourceLineNo">416</span> } catch (Exception e) {<a name="line.416"></a> +<span class="sourceLineNo">417</span> sink.publishReadFailure(serverName, region, column, e);<a name="line.417"></a> +<span class="sourceLineNo">418</span> sink.updateReadFailures(region.getRegionNameAsString(), serverName.getHostname());<a name="line.418"></a> +<span class="sourceLineNo">419</span> } finally {<a name="line.419"></a> +<span class="sourceLineNo">420</span> if (rs != null) {<a name="line.420"></a> +<span class="sourceLineNo">421</span> rs.close();<a name="line.421"></a> +<span class="sourceLineNo">422</span> }<a name="line.422"></a> +<span class="sourceLineNo">423</span> scan = null;<a name="line.423"></a> +<span class="sourceLineNo">424</span> get = null;<a name="line.424"></a> +<span class="sourceLineNo">425</span> }<a name="line.425"></a> +<span class="sourceLineNo">426</span> }<a name="line.426"></a> +<span class="sourceLineNo">427</span> try {<a name="line.427"></a> +<span class="sourceLineNo">428</span> table.close();<a name="line.428"></a> +<span class="sourceLineNo">429</span> } catch (IOException e) {<a name="line.429"></a> +<span class="sourceLineNo">430</span> LOG.error("Close table failed", e);<a name="line.430"></a> +<span class="sourceLineNo">431</span> }<a name="line.431"></a> +<span class="sourceLineNo">432</span> return null;<a name="line.432"></a> +<span class="sourceLineNo">433</span> }<a name="line.433"></a> +<span class="sourceLineNo">434</span><a name="line.434"></a> +<span class="sourceLineNo">435</span> /**<a name="line.435"></a> +<span class="sourceLineNo">436</span> * Check writes for the canary table<a name="line.436"></a> +<span class="sourceLineNo">437</span> */<a name="line.437"></a> +<span class="sourceLineNo">438</span> private Void write() {<a name="line.438"></a> +<span class="sourceLineNo">439</span> Table table = null;<a name="line.439"></a> +<span class="sourceLineNo">440</span> TableDescriptor tableDesc = null;<a name="line.440"></a> +<span class="sourceLineNo">441</span> try {<a name="line.441"></a> +<span class="sourceLineNo">442</span> table = connection.getTable(region.getTable());<a name="line.442"></a> +<span class="sourceLineNo">443</span> tableDesc = table.getDescriptor();<a name="line.443"></a> +<span class="sourceLineNo">444</span> byte[] rowToCheck = region.getStartKey();<a name="line.444"></a> +<span class="sourceLineNo">445</span> if (rowToCheck.length == 0) {<a name="line.445"></a> +<span class="sourceLineNo">446</span> rowToCheck = new byte[]{0x0};<a name="line.446"></a> +<span class="sourceLineNo">447</span> }<a name="line.447"></a> +<span class="sourceLineNo">448</span> int writeValueSize =<a name="line.448"></a> +<span class="sourceLineNo">449</span> connection.getConfiguration().getInt(HConstants.HBASE_CANARY_WRITE_VALUE_SIZE_KEY, 10);<a name="line.449"></a> +<span class="sourceLineNo">450</span> for (ColumnFamilyDescriptor column : tableDesc.getColumnFamilies()) {<a name="line.450"></a> +<span class="sourceLineNo">451</span> Put put = new Put(rowToCheck);<a name="line.451"></a> +<span class="sourceLineNo">452</span> byte[] value = new byte[writeValueSize];<a name="line.452"></a> +<span class="sourceLineNo">453</span> Bytes.random(value);<a name="line.453"></a> +<span class="sourceLineNo">454</span> put.addColumn(column.getName(), HConstants.EMPTY_BYTE_ARRAY, value);<a name="line.454"></a> +<span class="sourceLineNo">455</span><a name="line.455"></a> +<span class="sourceLineNo">456</span> LOG.debug("Writing to {} {} {} {}",<a name="line.456"></a> +<span class="sourceLineNo">457</span> tableDesc.getTableName(), region.getRegionNameAsString(), column.getNameAsString(),<a name="line.457"></a> +<span class="sourceLineNo">458</span> Bytes.toStringBinary(rowToCheck));<a name="line.458"></a> +<span class="sourceLineNo">459</span> try {<a name="line.459"></a> +<span class="sourceLineNo">460</span> long startTime = System.currentTimeMillis();<a name="line.460"></a> +<span class="sourceLineNo">461</span> table.put(put);<a name="line.461"></a> +<span class="sourceLineNo">462</span> long time = System.currentTimeMillis() - startTime;<a name="line.462"></a> +<span class="sourceLineNo">463</span> this.readWriteLatency.add(time);<a name="line.463"></a> +<span class="sourceLineNo">464</span> sink.publishWriteTiming(serverName, region, column, time);<a name="line.464"></a> +<span class="sourceLineNo">465</span> } catch (Exception e) {<a name="line.465"></a> +<span class="sourceLineNo">466</span> sink.publishWriteFailure(serverName, region, column, e);<a name="line.466"></a> +<span class="sourceLineNo">467</span> }<a name="line.467"></a> +<span class="sourceLineNo">468</span> }<a name="line.468"></a> +<span class="sourceLineNo">469</span> table.close();<a name="line.469"></a> +<span class="sourceLineNo">470</span> } catch (IOException e) {<a name="line.470"></a> +<span class="sourceLineNo">471</span> sink.publishWriteFailure(serverName, region, e);<a name="line.471"></a> +<span class="sourceLineNo">472</span> sink.updateWriteFailures(region.getRegionNameAsString(), serverName.getHostname() );<a name="line.472"></a> +<span class="sourceLineNo">473</span> }<a name="line.473"></a> +<span class="sourceLineNo">474</span> return null;<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> /**<a name="line.478"></a> +<span class="sourceLineNo">479</span> * Run a single RegionServer Task and then exit.<a name="line.479"></a> +<span class="sourceLineNo">480</span> * Get one row from a region on the regionserver and output latency or the failure.<a name="line.480"></a> +<span class="sourceLineNo">481</span> */<a name="line.481"></a> +<span class="sourceLineNo">482</span> static class RegionServerTask implements Callable<Void> {<a name="line.482"></a> +<span class="sourceLineNo">483</span> private Connection connection;<a name="line.483"></a> +<span class="sourceLineNo">484</span> private String serverName;<a name="line.484"></a> +<span class="sourceLineNo">485</span> private RegionInfo region;<a name="line.485"></a> +<span class="sourceLineNo">486</span> private RegionServerStdOutSink sink;<a name="line.486"></a> +<span class="sourceLineNo">487</span> private AtomicLong successes;<a name="line.487"></a> +<span class="sourceLineNo">488</span><a name="line.488"></a> +<span class="sourceLineNo">489</span> RegionServerTask(Connection connection, String serverName, RegionInfo region,<a name="line.489"></a> +<span class="sourceLineNo">490</span> RegionServerStdOutSink sink, AtomicLong successes) {<a name="line.490"></a> +<span class="sourceLineNo">491</span> this.connection = connection;<a name="line.491"></a> +<span class="sourceLineNo">492</span> this.serverName = serverName;<a name="line.492"></a> +<span class="sourceLineNo">493</span> this.region = region;<a name="line.493"></a> +<span class="sourceLineNo">494</span> this.sink = sink;<a name="line.494"></a> +<span class="sourceLineNo">495</span> this.successes = successes;<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> @Override<a name="line.498"></a> +<span class="sourceLineNo">499</span> public Void call() {<a name="line.499"></a> +<span class="sourceLineNo">500</span> TableName tableName = null;<a name="line.500"></a> +<span class="sourceLineNo">501</span> Table table = null;<a name="line.501"></a> +<span class="sourceLineNo">502</span> Get get = null;<a name="line.502"></a> +<span class="sourceLineNo">503</span> byte[] startKey = null;<a name="line.503"></a> +<span class="sourceLineNo">504</span> Scan scan = null;<a name="line.504"></a> +<span class="sourceLineNo">505</span> StopWatch stopWatch = new StopWatch();<a name="line.505"></a> +<span class="sourceLineNo">506</span> // monitor one region on every region server<a name="line.506"></a> +<span class="sourceLineNo">507</span> stopWatch.reset();<a name="line.507"></a> +<span class="sourceLineNo">508</span> try {<a name="line.508"></a> +<span class="sourceLineNo">509</span> tableName = region.getTable();<a name="line.509"></a> +<span class="sourceLineNo">510</span> table = connection.getTable(tableName);<a name="line.510"></a> +<span class="sourceLineNo">511</span> startKey = region.getStartKey();<a name="line.511"></a> +<span class="sourceLineNo">512</span> // Can't do a get on empty start row so do a Scan of first element if any instead.<a name="line.512"></a> +<span class="sourceLineNo">513</span> LOG.debug("Reading from {} {} {} {}",<a name="line.513"></a> +<span class="sourceLineNo">514</span> serverName, region.getTable(), region.getRegionNameAsString(),<a name="line.514"></a> +<span class="sourceLineNo">515</span> Bytes.toStringBinary(startKey));<a name="line.515"></a> +<span class="sourceLineNo">516</span> if (startKey.length > 0) {<a name="line.516"></a> +<span class="sourceLineNo">517</span> get = new Get(startKey);<a name="line.517"></a> +<span class="sourceLineNo">518</span> get.setCacheBlocks(false);<a name="line.518"></a> +<span class="sourceLineNo">519</span> get.setFilter(new FirstKeyOnlyFilter());<a name="line.519"></a> +<span class="sourceLineNo">520</span> stopWatch.start();<a name="line.520"></a> +<span class="sourceLineNo">521</span> table.get(get);<a name="line.521"></a> +<span class="sourceLineNo">522</span> stopWatch.stop();<a name="line.522"></a> +<span class="sourceLineNo">523</span> } else {<a name="line.523"></a> +<span class="sourceLineNo">524</span> scan = new Scan();<a name="line.524"></a> +<span class="sourceLineNo">525</span> scan.setCacheBlocks(false);<a name="line.525"></a> +<span class="sourceLineNo">526</span> scan.setFilter(new FirstKeyOnlyFilter());<a name="line.526"></a> +<span class="sourceLineNo">527</span> scan.setCaching(1);<a name="line.527"></a> +<span class="sourceLineNo">528</span> scan.setMaxResultSize(1L);<a name="line.528"></a> +<span class="sourceLineNo">529</span> scan.setOneRowLimit();<a name="line.529"></a> +<span class="sourceLineNo">530</span> stopWatch.start();<a name="line.530"></a> +<span class="sourceLineNo">531</span> ResultScanner s = table.getScanner(scan);<a name="line.531"></a> +<span class="sourceLineNo">532</span> s.next();<a name="line.532"></a> +<span class="sourceLineNo">533</span> s.close();<a name="line.533"></a> +<span class="sourceLineNo">534</span> stopWatch.stop();<a name="line.534"></a> +<span class="sourceLineNo">535</span> }<a name="line.535"></a> +<span class="sourceLineNo">536</span> successes.incrementAndGet();<a name="line.536"></a> +<span class="sourceLineNo">537</span> sink.publishReadTiming(tableName.getNameAsString(), serverName, stopWatch.getTime());<a name="line.537"></a> +<span class="sourceLineNo">538</span> } catch (TableNotFoundException tnfe) {<a name="line.538"></a> +<span class="sourceLineNo">539</span> LOG.error("Table may be deleted", tnfe);<a name="line.539"></a> +<span class="sourceLineNo">540</span> // This is ignored because it doesn't imply that the regionserver is dead<a name="line.540"></a> +<span class="sourceLineNo">541</span> } catch (TableNotEnabledException tnee) {<a name="line.541"></a> +<span class="sourceLineNo">542</span> // This is considered a success since we got a response.<a name="line.542"></a> +<span class="sourceLineNo">543</span> successes.incrementAndGet();<a name="line.543"></a> +<span class="sourceLineNo">544</span> LOG.debug("The targeted table was di
<TRUNCATED>