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+171,67 @@ <span class="sourceLineNo">163</span> LOG.warn("Failed to clean oldwals with exception: " + e);<a name="line.163"></a> <span class="sourceLineNo">164</span> succeed = false;<a name="line.164"></a> <span class="sourceLineNo">165</span> } finally {<a name="line.165"></a> -<span class="sourceLineNo">166</span> context.setResult(succeed);<a name="line.166"></a> -<span class="sourceLineNo">167</span> if (interrupted) {<a name="line.167"></a> -<span class="sourceLineNo">168</span> // Restore interrupt status<a name="line.168"></a> -<span class="sourceLineNo">169</span> Thread.currentThread().interrupt();<a name="line.169"></a> -<span class="sourceLineNo">170</span> break;<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> }<a name="line.173"></a> -<span class="sourceLineNo">174</span> if (LOG.isDebugEnabled()) {<a name="line.174"></a> -<span class="sourceLineNo">175</span> LOG.debug("Exiting cleaner.");<a name="line.175"></a> -<span class="sourceLineNo">176</span> }<a name="line.176"></a> -<span class="sourceLineNo">177</span> }<a name="line.177"></a> -<span class="sourceLineNo">178</span><a name="line.178"></a> -<span class="sourceLineNo">179</span> private static final class CleanerContext {<a name="line.179"></a> -<span class="sourceLineNo">180</span> // At most waits 60 seconds<a name="line.180"></a> -<span class="sourceLineNo">181</span> static final long MAX_WAIT = 60 * 1000;<a name="line.181"></a> -<span class="sourceLineNo">182</span><a name="line.182"></a> -<span class="sourceLineNo">183</span> final FileStatus target;<a name="line.183"></a> -<span class="sourceLineNo">184</span> volatile boolean result;<a name="line.184"></a> -<span class="sourceLineNo">185</span> volatile boolean setFromCleaner = false;<a name="line.185"></a> -<span class="sourceLineNo">186</span><a name="line.186"></a> -<span class="sourceLineNo">187</span> static CleanerContext createCleanerContext(FileStatus status) {<a name="line.187"></a> -<span class="sourceLineNo">188</span> return status != null ? new CleanerContext(status) : null;<a name="line.188"></a> -<span class="sourceLineNo">189</span> }<a name="line.189"></a> -<span class="sourceLineNo">190</span><a name="line.190"></a> -<span class="sourceLineNo">191</span> private CleanerContext(FileStatus status) {<a name="line.191"></a> -<span class="sourceLineNo">192</span> this.target = status;<a name="line.192"></a> -<span class="sourceLineNo">193</span> this.result = false;<a name="line.193"></a> -<span class="sourceLineNo">194</span> }<a name="line.194"></a> -<span class="sourceLineNo">195</span><a name="line.195"></a> -<span class="sourceLineNo">196</span> synchronized void setResult(boolean res) {<a name="line.196"></a> -<span class="sourceLineNo">197</span> this.result = res;<a name="line.197"></a> -<span class="sourceLineNo">198</span> this.setFromCleaner = true;<a name="line.198"></a> -<span class="sourceLineNo">199</span> notify();<a name="line.199"></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> synchronized boolean getResult(long waitIfNotFinished) {<a name="line.202"></a> -<span class="sourceLineNo">203</span> long totalTime = 0;<a name="line.203"></a> -<span class="sourceLineNo">204</span> try {<a name="line.204"></a> -<span class="sourceLineNo">205</span> while (!setFromCleaner) {<a name="line.205"></a> -<span class="sourceLineNo">206</span> wait(waitIfNotFinished);<a name="line.206"></a> -<span class="sourceLineNo">207</span> totalTime += waitIfNotFinished;<a name="line.207"></a> -<span class="sourceLineNo">208</span> if (totalTime >= MAX_WAIT) {<a name="line.208"></a> -<span class="sourceLineNo">209</span> LOG.warn("Spend too much time to delete oldwals " + target);<a name="line.209"></a> -<span class="sourceLineNo">210</span> return result;<a name="line.210"></a> -<span class="sourceLineNo">211</span> }<a name="line.211"></a> -<span class="sourceLineNo">212</span> }<a name="line.212"></a> -<span class="sourceLineNo">213</span> } catch (InterruptedException e) {<a name="line.213"></a> -<span class="sourceLineNo">214</span> LOG.warn("Interrupted while waiting deletion of " + target);<a name="line.214"></a> -<span class="sourceLineNo">215</span> return result;<a name="line.215"></a> -<span class="sourceLineNo">216</span> }<a name="line.216"></a> -<span class="sourceLineNo">217</span> return result;<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> FileStatus getTargetToClean() {<a name="line.220"></a> -<span class="sourceLineNo">221</span> return target;<a name="line.221"></a> -<span class="sourceLineNo">222</span> }<a name="line.222"></a> -<span class="sourceLineNo">223</span> }<a name="line.223"></a> -<span class="sourceLineNo">224</span>}<a name="line.224"></a> +<span class="sourceLineNo">166</span> if (context != null) {<a name="line.166"></a> +<span class="sourceLineNo">167</span> context.setResult(succeed);<a name="line.167"></a> +<span class="sourceLineNo">168</span> }<a name="line.168"></a> +<span class="sourceLineNo">169</span> if (interrupted) {<a name="line.169"></a> +<span class="sourceLineNo">170</span> // Restore interrupt status<a name="line.170"></a> +<span class="sourceLineNo">171</span> Thread.currentThread().interrupt();<a name="line.171"></a> +<span class="sourceLineNo">172</span> break;<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> }<a name="line.175"></a> +<span class="sourceLineNo">176</span> if (LOG.isDebugEnabled()) {<a name="line.176"></a> +<span class="sourceLineNo">177</span> LOG.debug("Exiting cleaner.");<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> private static final class CleanerContext {<a name="line.181"></a> +<span class="sourceLineNo">182</span> // At most waits 60 seconds<a name="line.182"></a> +<span class="sourceLineNo">183</span> static final long MAX_WAIT = 60 * 1000;<a name="line.183"></a> +<span class="sourceLineNo">184</span><a name="line.184"></a> +<span class="sourceLineNo">185</span> final FileStatus target;<a name="line.185"></a> +<span class="sourceLineNo">186</span> volatile boolean result;<a name="line.186"></a> +<span class="sourceLineNo">187</span> volatile boolean setFromCleaner = false;<a name="line.187"></a> +<span class="sourceLineNo">188</span><a name="line.188"></a> +<span class="sourceLineNo">189</span> static CleanerContext createCleanerContext(FileStatus status) {<a name="line.189"></a> +<span class="sourceLineNo">190</span> return status != null ? new CleanerContext(status) : null;<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> private CleanerContext(FileStatus status) {<a name="line.193"></a> +<span class="sourceLineNo">194</span> this.target = status;<a name="line.194"></a> +<span class="sourceLineNo">195</span> this.result = false;<a name="line.195"></a> +<span class="sourceLineNo">196</span> }<a name="line.196"></a> +<span class="sourceLineNo">197</span><a name="line.197"></a> +<span class="sourceLineNo">198</span> synchronized void setResult(boolean res) {<a name="line.198"></a> +<span class="sourceLineNo">199</span> this.result = res;<a name="line.199"></a> +<span class="sourceLineNo">200</span> this.setFromCleaner = true;<a name="line.200"></a> +<span class="sourceLineNo">201</span> notify();<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> synchronized boolean getResult(long waitIfNotFinished) {<a name="line.204"></a> +<span class="sourceLineNo">205</span> long totalTime = 0;<a name="line.205"></a> +<span class="sourceLineNo">206</span> try {<a name="line.206"></a> +<span class="sourceLineNo">207</span> while (!setFromCleaner) {<a name="line.207"></a> +<span class="sourceLineNo">208</span> wait(waitIfNotFinished);<a name="line.208"></a> +<span class="sourceLineNo">209</span> totalTime += waitIfNotFinished;<a name="line.209"></a> +<span class="sourceLineNo">210</span> if (totalTime >= MAX_WAIT) {<a name="line.210"></a> +<span class="sourceLineNo">211</span> LOG.warn("Spend too much time to delete oldwals " + target);<a name="line.211"></a> +<span class="sourceLineNo">212</span> return result;<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> } catch (InterruptedException e) {<a name="line.215"></a> +<span class="sourceLineNo">216</span> LOG.warn("Interrupted while waiting deletion of " + target);<a name="line.216"></a> +<span class="sourceLineNo">217</span> return result;<a name="line.217"></a> +<span class="sourceLineNo">218</span> }<a name="line.218"></a> +<span class="sourceLineNo">219</span> return result;<a name="line.219"></a> +<span class="sourceLineNo">220</span> }<a name="line.220"></a> +<span class="sourceLineNo">221</span><a name="line.221"></a> +<span class="sourceLineNo">222</span> FileStatus getTargetToClean() {<a name="line.222"></a> +<span class="sourceLineNo">223</span> return target;<a name="line.223"></a> +<span class="sourceLineNo">224</span> }<a name="line.224"></a> +<span class="sourceLineNo">225</span> }<a name="line.225"></a> +<span class="sourceLineNo">226</span>}<a name="line.226"></a> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/48bd3915/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/ClusterStatusTracker.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/ClusterStatusTracker.html b/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/ClusterStatusTracker.html index 6ae0e1b..b8f5640 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/ClusterStatusTracker.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/ClusterStatusTracker.html @@ -28,83 +28,85 @@ <span class="sourceLineNo">020</span><a name="line.20"></a> <span class="sourceLineNo">021</span>import org.apache.commons.logging.Log;<a name="line.21"></a> <span class="sourceLineNo">022</span>import org.apache.commons.logging.LogFactory;<a name="line.22"></a> -<span class="sourceLineNo">023</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.23"></a> -<span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.Abortable;<a name="line.24"></a> -<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.25"></a> -<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ZooKeeperProtos;<a name="line.26"></a> -<span class="sourceLineNo">027</span>import org.apache.zookeeper.KeeperException;<a name="line.27"></a> -<span class="sourceLineNo">028</span><a name="line.28"></a> -<span class="sourceLineNo">029</span>/**<a name="line.29"></a> -<span class="sourceLineNo">030</span> * Tracker on cluster settings up in zookeeper.<a name="line.30"></a> -<span class="sourceLineNo">031</span> * This is not related to {@link org.apache.hadoop.hbase.ClusterStatus}. That class<a name="line.31"></a> -<span class="sourceLineNo">032</span> * is a data structure that holds snapshot of current view on cluster. This class<a name="line.32"></a> -<span class="sourceLineNo">033</span> * is about tracking cluster attributes up in zookeeper.<a name="line.33"></a> -<span class="sourceLineNo">034</span> *<a name="line.34"></a> -<span class="sourceLineNo">035</span> */<a name="line.35"></a> -<span class="sourceLineNo">036</span>@InterfaceAudience.Private<a name="line.36"></a> -<span class="sourceLineNo">037</span>public class ClusterStatusTracker extends ZKNodeTracker {<a name="line.37"></a> -<span class="sourceLineNo">038</span> private static final Log LOG = LogFactory.getLog(ClusterStatusTracker.class);<a name="line.38"></a> -<span class="sourceLineNo">039</span><a name="line.39"></a> -<span class="sourceLineNo">040</span> /**<a name="line.40"></a> -<span class="sourceLineNo">041</span> * Creates a cluster status tracker.<a name="line.41"></a> -<span class="sourceLineNo">042</span> *<a name="line.42"></a> -<span class="sourceLineNo">043</span> * <p>After construction, use {@link #start} to kick off tracking.<a name="line.43"></a> -<span class="sourceLineNo">044</span> *<a name="line.44"></a> -<span class="sourceLineNo">045</span> * @param watcher<a name="line.45"></a> -<span class="sourceLineNo">046</span> * @param abortable<a name="line.46"></a> -<span class="sourceLineNo">047</span> */<a name="line.47"></a> -<span class="sourceLineNo">048</span> public ClusterStatusTracker(ZKWatcher watcher, Abortable abortable) {<a name="line.48"></a> -<span class="sourceLineNo">049</span> super(watcher, watcher.znodePaths.clusterStateZNode, abortable);<a name="line.49"></a> -<span class="sourceLineNo">050</span> }<a name="line.50"></a> -<span class="sourceLineNo">051</span><a name="line.51"></a> -<span class="sourceLineNo">052</span> /**<a name="line.52"></a> -<span class="sourceLineNo">053</span> * Checks if cluster is up.<a name="line.53"></a> -<span class="sourceLineNo">054</span> * @return true if the cluster up ('shutdown' is its name up in zk) znode<a name="line.54"></a> -<span class="sourceLineNo">055</span> * exists with data, false if not<a name="line.55"></a> -<span class="sourceLineNo">056</span> */<a name="line.56"></a> -<span class="sourceLineNo">057</span> public boolean isClusterUp() {<a name="line.57"></a> -<span class="sourceLineNo">058</span> return super.getData(false) != null;<a name="line.58"></a> -<span class="sourceLineNo">059</span> }<a name="line.59"></a> -<span class="sourceLineNo">060</span><a name="line.60"></a> -<span class="sourceLineNo">061</span> /**<a name="line.61"></a> -<span class="sourceLineNo">062</span> * Sets the cluster as up.<a name="line.62"></a> -<span class="sourceLineNo">063</span> * @throws KeeperException unexpected zk exception<a name="line.63"></a> -<span class="sourceLineNo">064</span> */<a name="line.64"></a> -<span class="sourceLineNo">065</span> public void setClusterUp()<a name="line.65"></a> -<span class="sourceLineNo">066</span> throws KeeperException {<a name="line.66"></a> -<span class="sourceLineNo">067</span> byte [] upData = toByteArray();<a name="line.67"></a> -<span class="sourceLineNo">068</span> try {<a name="line.68"></a> -<span class="sourceLineNo">069</span> ZKUtil.createAndWatch(watcher, watcher.znodePaths.clusterStateZNode, upData);<a name="line.69"></a> -<span class="sourceLineNo">070</span> } catch(KeeperException.NodeExistsException nee) {<a name="line.70"></a> -<span class="sourceLineNo">071</span> ZKUtil.setData(watcher, watcher.znodePaths.clusterStateZNode, upData);<a name="line.71"></a> -<span class="sourceLineNo">072</span> }<a name="line.72"></a> -<span class="sourceLineNo">073</span> }<a name="line.73"></a> -<span class="sourceLineNo">074</span><a name="line.74"></a> -<span class="sourceLineNo">075</span> /**<a name="line.75"></a> -<span class="sourceLineNo">076</span> * Sets the cluster as down by deleting the znode.<a name="line.76"></a> -<span class="sourceLineNo">077</span> * @throws KeeperException unexpected zk exception<a name="line.77"></a> -<span class="sourceLineNo">078</span> */<a name="line.78"></a> -<span class="sourceLineNo">079</span> public void setClusterDown()<a name="line.79"></a> -<span class="sourceLineNo">080</span> throws KeeperException {<a name="line.80"></a> -<span class="sourceLineNo">081</span> try {<a name="line.81"></a> -<span class="sourceLineNo">082</span> ZKUtil.deleteNode(watcher, watcher.znodePaths.clusterStateZNode);<a name="line.82"></a> -<span class="sourceLineNo">083</span> } catch(KeeperException.NoNodeException nne) {<a name="line.83"></a> -<span class="sourceLineNo">084</span> LOG.warn("Attempted to set cluster as down but already down, cluster " +<a name="line.84"></a> -<span class="sourceLineNo">085</span> "state node (" + watcher.znodePaths.clusterStateZNode + ") not found");<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><a name="line.88"></a> -<span class="sourceLineNo">089</span> /**<a name="line.89"></a> -<span class="sourceLineNo">090</span> * @return Content of the clusterup znode as a serialized pb with the pb<a name="line.90"></a> -<span class="sourceLineNo">091</span> * magic as prefix.<a name="line.91"></a> -<span class="sourceLineNo">092</span> */<a name="line.92"></a> -<span class="sourceLineNo">093</span> static byte [] toByteArray() {<a name="line.93"></a> -<span class="sourceLineNo">094</span> ZooKeeperProtos.ClusterUp.Builder builder =<a name="line.94"></a> -<span class="sourceLineNo">095</span> ZooKeeperProtos.ClusterUp.newBuilder();<a name="line.95"></a> -<span class="sourceLineNo">096</span> builder.setStartDate(new java.util.Date().toString());<a name="line.96"></a> -<span class="sourceLineNo">097</span> return ProtobufUtil.prependPBMagic(builder.build().toByteArray());<a name="line.97"></a> -<span class="sourceLineNo">098</span> }<a name="line.98"></a> -<span class="sourceLineNo">099</span>}<a name="line.99"></a> +<span class="sourceLineNo">023</span>import org.apache.hadoop.hbase.Abortable;<a name="line.23"></a> +<span class="sourceLineNo">024</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.24"></a> +<span class="sourceLineNo">025</span>import org.apache.zookeeper.KeeperException;<a name="line.25"></a> +<span class="sourceLineNo">026</span><a name="line.26"></a> +<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.27"></a> +<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ZooKeeperProtos;<a name="line.28"></a> +<span class="sourceLineNo">029</span><a name="line.29"></a> +<span class="sourceLineNo">030</span>/**<a name="line.30"></a> +<span class="sourceLineNo">031</span> * Tracker on cluster settings up in zookeeper.<a name="line.31"></a> +<span class="sourceLineNo">032</span> * This is not related to {@link org.apache.hadoop.hbase.ClusterStatus}. That class<a name="line.32"></a> +<span class="sourceLineNo">033</span> * is a data structure that holds snapshot of current view on cluster. This class<a name="line.33"></a> +<span class="sourceLineNo">034</span> * is about tracking cluster attributes up in zookeeper.<a name="line.34"></a> +<span class="sourceLineNo">035</span> *<a name="line.35"></a> +<span class="sourceLineNo">036</span> */<a name="line.36"></a> +<span class="sourceLineNo">037</span>@InterfaceAudience.Private<a name="line.37"></a> +<span class="sourceLineNo">038</span>public class ClusterStatusTracker extends ZKNodeTracker {<a name="line.38"></a> +<span class="sourceLineNo">039</span> private static final Log LOG = LogFactory.getLog(ClusterStatusTracker.class);<a name="line.39"></a> +<span class="sourceLineNo">040</span><a name="line.40"></a> +<span class="sourceLineNo">041</span> /**<a name="line.41"></a> +<span class="sourceLineNo">042</span> * Creates a cluster status tracker.<a name="line.42"></a> +<span class="sourceLineNo">043</span> *<a name="line.43"></a> +<span class="sourceLineNo">044</span> * <p>After construction, use {@link #start} to kick off tracking.<a name="line.44"></a> +<span class="sourceLineNo">045</span> *<a name="line.45"></a> +<span class="sourceLineNo">046</span> * @param watcher reference to the {@link ZKWatcher} which also contains configuration and<a name="line.46"></a> +<span class="sourceLineNo">047</span> * constants<a name="line.47"></a> +<span class="sourceLineNo">048</span> * @param abortable used to abort if a fatal error occurs<a name="line.48"></a> +<span class="sourceLineNo">049</span> */<a name="line.49"></a> +<span class="sourceLineNo">050</span> public ClusterStatusTracker(ZKWatcher watcher, Abortable abortable) {<a name="line.50"></a> +<span class="sourceLineNo">051</span> super(watcher, watcher.znodePaths.clusterStateZNode, abortable);<a name="line.51"></a> +<span class="sourceLineNo">052</span> }<a name="line.52"></a> +<span class="sourceLineNo">053</span><a name="line.53"></a> +<span class="sourceLineNo">054</span> /**<a name="line.54"></a> +<span class="sourceLineNo">055</span> * Checks if cluster is up.<a name="line.55"></a> +<span class="sourceLineNo">056</span> * @return true if the cluster up ('shutdown' is its name up in zk) znode<a name="line.56"></a> +<span class="sourceLineNo">057</span> * exists with data, false if not<a name="line.57"></a> +<span class="sourceLineNo">058</span> */<a name="line.58"></a> +<span class="sourceLineNo">059</span> public boolean isClusterUp() {<a name="line.59"></a> +<span class="sourceLineNo">060</span> return super.getData(false) != null;<a name="line.60"></a> +<span class="sourceLineNo">061</span> }<a name="line.61"></a> +<span class="sourceLineNo">062</span><a name="line.62"></a> +<span class="sourceLineNo">063</span> /**<a name="line.63"></a> +<span class="sourceLineNo">064</span> * Sets the cluster as up.<a name="line.64"></a> +<span class="sourceLineNo">065</span> * @throws KeeperException unexpected zk exception<a name="line.65"></a> +<span class="sourceLineNo">066</span> */<a name="line.66"></a> +<span class="sourceLineNo">067</span> public void setClusterUp()<a name="line.67"></a> +<span class="sourceLineNo">068</span> throws KeeperException {<a name="line.68"></a> +<span class="sourceLineNo">069</span> byte [] upData = toByteArray();<a name="line.69"></a> +<span class="sourceLineNo">070</span> try {<a name="line.70"></a> +<span class="sourceLineNo">071</span> ZKUtil.createAndWatch(watcher, watcher.znodePaths.clusterStateZNode, upData);<a name="line.71"></a> +<span class="sourceLineNo">072</span> } catch(KeeperException.NodeExistsException nee) {<a name="line.72"></a> +<span class="sourceLineNo">073</span> ZKUtil.setData(watcher, watcher.znodePaths.clusterStateZNode, upData);<a name="line.73"></a> +<span class="sourceLineNo">074</span> }<a name="line.74"></a> +<span class="sourceLineNo">075</span> }<a name="line.75"></a> +<span class="sourceLineNo">076</span><a name="line.76"></a> +<span class="sourceLineNo">077</span> /**<a name="line.77"></a> +<span class="sourceLineNo">078</span> * Sets the cluster as down by deleting the znode.<a name="line.78"></a> +<span class="sourceLineNo">079</span> * @throws KeeperException unexpected zk exception<a name="line.79"></a> +<span class="sourceLineNo">080</span> */<a name="line.80"></a> +<span class="sourceLineNo">081</span> public void setClusterDown()<a name="line.81"></a> +<span class="sourceLineNo">082</span> throws KeeperException {<a name="line.82"></a> +<span class="sourceLineNo">083</span> try {<a name="line.83"></a> +<span class="sourceLineNo">084</span> ZKUtil.deleteNode(watcher, watcher.znodePaths.clusterStateZNode);<a name="line.84"></a> +<span class="sourceLineNo">085</span> } catch(KeeperException.NoNodeException nne) {<a name="line.85"></a> +<span class="sourceLineNo">086</span> LOG.warn("Attempted to set cluster as down but already down, cluster " +<a name="line.86"></a> +<span class="sourceLineNo">087</span> "state node (" + watcher.znodePaths.clusterStateZNode + ") not found");<a name="line.87"></a> +<span class="sourceLineNo">088</span> }<a name="line.88"></a> +<span class="sourceLineNo">089</span> }<a name="line.89"></a> +<span class="sourceLineNo">090</span><a name="line.90"></a> +<span class="sourceLineNo">091</span> /**<a name="line.91"></a> +<span class="sourceLineNo">092</span> * @return Content of the clusterup znode as a serialized pb with the pb<a name="line.92"></a> +<span class="sourceLineNo">093</span> * magic as prefix.<a name="line.93"></a> +<span class="sourceLineNo">094</span> */<a name="line.94"></a> +<span class="sourceLineNo">095</span> static byte [] toByteArray() {<a name="line.95"></a> +<span class="sourceLineNo">096</span> ZooKeeperProtos.ClusterUp.Builder builder =<a name="line.96"></a> +<span class="sourceLineNo">097</span> ZooKeeperProtos.ClusterUp.newBuilder();<a name="line.97"></a> +<span class="sourceLineNo">098</span> builder.setStartDate(new java.util.Date().toString());<a name="line.98"></a> +<span class="sourceLineNo">099</span> return ProtobufUtil.prependPBMagic(builder.build().toByteArray());<a name="line.99"></a> +<span class="sourceLineNo">100</span> }<a name="line.100"></a> +<span class="sourceLineNo">101</span>}<a name="line.101"></a> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/48bd3915/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/EmptyWatcher.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/EmptyWatcher.html b/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/EmptyWatcher.html index e343056..c3160af 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/EmptyWatcher.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/EmptyWatcher.html @@ -33,7 +33,7 @@ <span class="sourceLineNo">025</span> * An empty ZooKeeper watcher<a name="line.25"></a> <span class="sourceLineNo">026</span> */<a name="line.26"></a> <span class="sourceLineNo">027</span>@InterfaceAudience.Private<a name="line.27"></a> -<span class="sourceLineNo">028</span>public class EmptyWatcher implements Watcher {<a name="line.28"></a> +<span class="sourceLineNo">028</span>public final class EmptyWatcher implements Watcher {<a name="line.28"></a> <span class="sourceLineNo">029</span> // Used in this package but also by tests so needs to be public<a name="line.29"></a> <span class="sourceLineNo">030</span> public static final EmptyWatcher instance = new EmptyWatcher();<a name="line.30"></a> <span class="sourceLineNo">031</span> private EmptyWatcher() {}<a name="line.31"></a>
