http://git-wip-us.apache.org/repos/asf/hbase-site/blob/e60b829c/devapidocs/src-html/org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.RSRollLogTask.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.RSRollLogTask.html b/devapidocs/src-html/org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.RSRollLogTask.html index 86edc57..9d45869 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.RSRollLogTask.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.RSRollLogTask.html @@ -34,146 +34,145 @@ <span class="sourceLineNo">026</span>import org.apache.commons.logging.LogFactory;<a name="line.26"></a> <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.backup.impl.BackupSystemTable;<a name="line.27"></a> <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.backup.master.LogRollMasterProcedureManager;<a name="line.28"></a> -<span class="sourceLineNo">029</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.29"></a> -<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.30"></a> -<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.errorhandling.ForeignException;<a name="line.31"></a> -<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher;<a name="line.32"></a> -<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.procedure.ProcedureMember;<a name="line.33"></a> -<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.procedure.Subprocedure;<a name="line.34"></a> -<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.regionserver.HRegionServer;<a name="line.35"></a> -<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.regionserver.RegionServerServices;<a name="line.36"></a> -<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.regionserver.wal.AbstractFSWAL;<a name="line.37"></a> -<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.regionserver.wal.FSHLog;<a name="line.38"></a> -<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.39"></a> -<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.wal.WAL;<a name="line.40"></a> -<span class="sourceLineNo">041</span><a name="line.41"></a> -<span class="sourceLineNo">042</span>/**<a name="line.42"></a> -<span class="sourceLineNo">043</span> * This backup sub-procedure implementation forces a WAL rolling on a RS.<a name="line.43"></a> -<span class="sourceLineNo">044</span> */<a name="line.44"></a> -<span class="sourceLineNo">045</span>@InterfaceAudience.Private<a name="line.45"></a> -<span class="sourceLineNo">046</span>public class LogRollBackupSubprocedure extends Subprocedure {<a name="line.46"></a> -<span class="sourceLineNo">047</span> private static final Log LOG = LogFactory.getLog(LogRollBackupSubprocedure.class);<a name="line.47"></a> -<span class="sourceLineNo">048</span><a name="line.48"></a> -<span class="sourceLineNo">049</span> private final RegionServerServices rss;<a name="line.49"></a> -<span class="sourceLineNo">050</span> private final LogRollBackupSubprocedurePool taskManager;<a name="line.50"></a> -<span class="sourceLineNo">051</span> private FSHLog hlog;<a name="line.51"></a> -<span class="sourceLineNo">052</span> private String backupRoot;<a name="line.52"></a> -<span class="sourceLineNo">053</span><a name="line.53"></a> -<span class="sourceLineNo">054</span> public LogRollBackupSubprocedure(RegionServerServices rss, ProcedureMember member,<a name="line.54"></a> -<span class="sourceLineNo">055</span> ForeignExceptionDispatcher errorListener, long wakeFrequency, long timeout,<a name="line.55"></a> -<span class="sourceLineNo">056</span> LogRollBackupSubprocedurePool taskManager, byte[] data) {<a name="line.56"></a> -<span class="sourceLineNo">057</span><a name="line.57"></a> -<span class="sourceLineNo">058</span> super(member, LogRollMasterProcedureManager.ROLLLOG_PROCEDURE_NAME, errorListener,<a name="line.58"></a> -<span class="sourceLineNo">059</span> wakeFrequency, timeout);<a name="line.59"></a> -<span class="sourceLineNo">060</span> LOG.info("Constructing a LogRollBackupSubprocedure.");<a name="line.60"></a> -<span class="sourceLineNo">061</span> this.rss = rss;<a name="line.61"></a> -<span class="sourceLineNo">062</span> this.taskManager = taskManager;<a name="line.62"></a> -<span class="sourceLineNo">063</span> if (data != null) {<a name="line.63"></a> -<span class="sourceLineNo">064</span> backupRoot = new String(data);<a name="line.64"></a> -<span class="sourceLineNo">065</span> }<a name="line.65"></a> -<span class="sourceLineNo">066</span> }<a name="line.66"></a> -<span class="sourceLineNo">067</span><a name="line.67"></a> -<span class="sourceLineNo">068</span> /**<a name="line.68"></a> -<span class="sourceLineNo">069</span> * Callable task. TODO. We don't need a thread pool to execute roll log. This can be simplified<a name="line.69"></a> -<span class="sourceLineNo">070</span> * with no use of subprocedurepool.<a name="line.70"></a> -<span class="sourceLineNo">071</span> */<a name="line.71"></a> -<span class="sourceLineNo">072</span> class RSRollLogTask implements Callable<Void> {<a name="line.72"></a> -<span class="sourceLineNo">073</span> RSRollLogTask() {<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> @Override<a name="line.76"></a> -<span class="sourceLineNo">077</span> public Void call() throws Exception {<a name="line.77"></a> -<span class="sourceLineNo">078</span> if (LOG.isDebugEnabled()) {<a name="line.78"></a> -<span class="sourceLineNo">079</span> LOG.debug("++ DRPC started: " + rss.getServerName());<a name="line.79"></a> -<span class="sourceLineNo">080</span> }<a name="line.80"></a> -<span class="sourceLineNo">081</span> hlog = (FSHLog) rss.getWAL(null);<a name="line.81"></a> -<span class="sourceLineNo">082</span> long filenum = hlog.getFilenum();<a name="line.82"></a> -<span class="sourceLineNo">083</span> List<WAL> wals = rss.getWALs();<a name="line.83"></a> -<span class="sourceLineNo">084</span> long highest = -1;<a name="line.84"></a> -<span class="sourceLineNo">085</span> for (WAL wal : wals) {<a name="line.85"></a> -<span class="sourceLineNo">086</span> if (wal == null) continue;<a name="line.86"></a> -<span class="sourceLineNo">087</span> if (((AbstractFSWAL) wal).getFilenum() > highest) {<a name="line.87"></a> -<span class="sourceLineNo">088</span> highest = ((AbstractFSWAL) wal).getFilenum();<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> LOG.info("Trying to roll log in backup subprocedure, current log number: " + filenum<a name="line.92"></a> -<span class="sourceLineNo">093</span> + " highest: " + highest + " on " + rss.getServerName());<a name="line.93"></a> -<span class="sourceLineNo">094</span> ((HRegionServer) rss).getWalRoller().requestRollAll();<a name="line.94"></a> -<span class="sourceLineNo">095</span> long start = EnvironmentEdgeManager.currentTime();<a name="line.95"></a> -<span class="sourceLineNo">096</span> while (!((HRegionServer) rss).getWalRoller().walRollFinished()) {<a name="line.96"></a> -<span class="sourceLineNo">097</span> Thread.sleep(20);<a name="line.97"></a> -<span class="sourceLineNo">098</span> }<a name="line.98"></a> -<span class="sourceLineNo">099</span> LOG.debug("log roll took " + (EnvironmentEdgeManager.currentTime() - start));<a name="line.99"></a> -<span class="sourceLineNo">100</span> LOG.info("After roll log in backup subprocedure, current log number: " + hlog.getFilenum()<a name="line.100"></a> -<span class="sourceLineNo">101</span> + " on " + rss.getServerName());<a name="line.101"></a> -<span class="sourceLineNo">102</span><a name="line.102"></a> -<span class="sourceLineNo">103</span> Connection connection = rss.getConnection();<a name="line.103"></a> -<span class="sourceLineNo">104</span> try (final BackupSystemTable table = new BackupSystemTable(connection)) {<a name="line.104"></a> -<span class="sourceLineNo">105</span> // sanity check, good for testing<a name="line.105"></a> -<span class="sourceLineNo">106</span> HashMap<String, Long> serverTimestampMap =<a name="line.106"></a> -<span class="sourceLineNo">107</span> table.readRegionServerLastLogRollResult(backupRoot);<a name="line.107"></a> -<span class="sourceLineNo">108</span> String host = rss.getServerName().getHostname();<a name="line.108"></a> -<span class="sourceLineNo">109</span> int port = rss.getServerName().getPort();<a name="line.109"></a> -<span class="sourceLineNo">110</span> String server = host + ":" + port;<a name="line.110"></a> -<span class="sourceLineNo">111</span> Long sts = serverTimestampMap.get(host);<a name="line.111"></a> -<span class="sourceLineNo">112</span> if (sts != null && sts > highest) {<a name="line.112"></a> -<span class="sourceLineNo">113</span> LOG.warn("Won't update server's last roll log result: current=" + sts + " new=" + highest);<a name="line.113"></a> -<span class="sourceLineNo">114</span> return null;<a name="line.114"></a> -<span class="sourceLineNo">115</span> }<a name="line.115"></a> -<span class="sourceLineNo">116</span> // write the log number to backup system table.<a name="line.116"></a> -<span class="sourceLineNo">117</span> table.writeRegionServerLastLogRollResult(server, highest, backupRoot);<a name="line.117"></a> -<span class="sourceLineNo">118</span> return null;<a name="line.118"></a> -<span class="sourceLineNo">119</span> } catch (Exception e) {<a name="line.119"></a> -<span class="sourceLineNo">120</span> LOG.error(e);<a name="line.120"></a> -<span class="sourceLineNo">121</span> throw e;<a name="line.121"></a> -<span class="sourceLineNo">122</span> }<a name="line.122"></a> -<span class="sourceLineNo">123</span> }<a name="line.123"></a> -<span class="sourceLineNo">124</span> }<a name="line.124"></a> -<span class="sourceLineNo">125</span><a name="line.125"></a> -<span class="sourceLineNo">126</span> private void rolllog() throws ForeignException {<a name="line.126"></a> -<span class="sourceLineNo">127</span> monitor.rethrowException();<a name="line.127"></a> -<span class="sourceLineNo">128</span><a name="line.128"></a> -<span class="sourceLineNo">129</span> taskManager.submitTask(new RSRollLogTask());<a name="line.129"></a> -<span class="sourceLineNo">130</span> monitor.rethrowException();<a name="line.130"></a> -<span class="sourceLineNo">131</span><a name="line.131"></a> -<span class="sourceLineNo">132</span> // wait for everything to complete.<a name="line.132"></a> -<span class="sourceLineNo">133</span> taskManager.waitForOutstandingTasks();<a name="line.133"></a> -<span class="sourceLineNo">134</span> monitor.rethrowException();<a name="line.134"></a> -<span class="sourceLineNo">135</span><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> @Override<a name="line.138"></a> -<span class="sourceLineNo">139</span> public void acquireBarrier() throws ForeignException {<a name="line.139"></a> -<span class="sourceLineNo">140</span> // do nothing, executing in inside barrier step.<a name="line.140"></a> -<span class="sourceLineNo">141</span> }<a name="line.141"></a> -<span class="sourceLineNo">142</span><a name="line.142"></a> -<span class="sourceLineNo">143</span> /**<a name="line.143"></a> -<span class="sourceLineNo">144</span> * do a log roll.<a name="line.144"></a> -<span class="sourceLineNo">145</span> * @return some bytes<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 byte[] insideBarrier() throws ForeignException {<a name="line.148"></a> -<span class="sourceLineNo">149</span> rolllog();<a name="line.149"></a> -<span class="sourceLineNo">150</span> return null;<a name="line.150"></a> -<span class="sourceLineNo">151</span> }<a name="line.151"></a> -<span class="sourceLineNo">152</span><a name="line.152"></a> -<span class="sourceLineNo">153</span> /**<a name="line.153"></a> -<span class="sourceLineNo">154</span> * Cancel threads if they haven't finished.<a name="line.154"></a> -<span class="sourceLineNo">155</span> */<a name="line.155"></a> -<span class="sourceLineNo">156</span> @Override<a name="line.156"></a> -<span class="sourceLineNo">157</span> public void cleanup(Exception e) {<a name="line.157"></a> -<span class="sourceLineNo">158</span> taskManager.abort("Aborting log roll subprocedure tasks for backup due to error", e);<a name="line.158"></a> -<span class="sourceLineNo">159</span> }<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> * Hooray!<a name="line.162"></a> -<span class="sourceLineNo">163</span> */<a name="line.163"></a> -<span class="sourceLineNo">164</span> public void releaseBarrier() {<a name="line.164"></a> -<span class="sourceLineNo">165</span> // NO OP<a name="line.165"></a> -<span class="sourceLineNo">166</span> }<a name="line.166"></a> -<span class="sourceLineNo">167</span><a name="line.167"></a> -<span class="sourceLineNo">168</span>}<a name="line.168"></a> +<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.29"></a> +<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.errorhandling.ForeignException;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.procedure.ProcedureMember;<a name="line.32"></a> +<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.procedure.Subprocedure;<a name="line.33"></a> +<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.regionserver.HRegionServer;<a name="line.34"></a> +<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.regionserver.RegionServerServices;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.regionserver.wal.AbstractFSWAL;<a name="line.36"></a> +<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.37"></a> +<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.wal.WAL;<a name="line.38"></a> +<span class="sourceLineNo">039</span>import org.apache.yetus.audience.InterfaceAudience;<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> * This backup sub-procedure implementation forces a WAL rolling on a RS.<a name="line.42"></a> +<span class="sourceLineNo">043</span> */<a name="line.43"></a> +<span class="sourceLineNo">044</span>@InterfaceAudience.Private<a name="line.44"></a> +<span class="sourceLineNo">045</span>public class LogRollBackupSubprocedure extends Subprocedure {<a name="line.45"></a> +<span class="sourceLineNo">046</span> private static final Log LOG = LogFactory.getLog(LogRollBackupSubprocedure.class);<a name="line.46"></a> +<span class="sourceLineNo">047</span><a name="line.47"></a> +<span class="sourceLineNo">048</span> private final RegionServerServices rss;<a name="line.48"></a> +<span class="sourceLineNo">049</span> private final LogRollBackupSubprocedurePool taskManager;<a name="line.49"></a> +<span class="sourceLineNo">050</span> private String backupRoot;<a name="line.50"></a> +<span class="sourceLineNo">051</span><a name="line.51"></a> +<span class="sourceLineNo">052</span> public LogRollBackupSubprocedure(RegionServerServices rss, ProcedureMember member,<a name="line.52"></a> +<span class="sourceLineNo">053</span> ForeignExceptionDispatcher errorListener, long wakeFrequency, long timeout,<a name="line.53"></a> +<span class="sourceLineNo">054</span> LogRollBackupSubprocedurePool taskManager, byte[] data) {<a name="line.54"></a> +<span class="sourceLineNo">055</span><a name="line.55"></a> +<span class="sourceLineNo">056</span> super(member, LogRollMasterProcedureManager.ROLLLOG_PROCEDURE_NAME, errorListener,<a name="line.56"></a> +<span class="sourceLineNo">057</span> wakeFrequency, timeout);<a name="line.57"></a> +<span class="sourceLineNo">058</span> LOG.info("Constructing a LogRollBackupSubprocedure.");<a name="line.58"></a> +<span class="sourceLineNo">059</span> this.rss = rss;<a name="line.59"></a> +<span class="sourceLineNo">060</span> this.taskManager = taskManager;<a name="line.60"></a> +<span class="sourceLineNo">061</span> if (data != null) {<a name="line.61"></a> +<span class="sourceLineNo">062</span> backupRoot = new String(data);<a name="line.62"></a> +<span class="sourceLineNo">063</span> }<a name="line.63"></a> +<span class="sourceLineNo">064</span> }<a name="line.64"></a> +<span class="sourceLineNo">065</span><a name="line.65"></a> +<span class="sourceLineNo">066</span> /**<a name="line.66"></a> +<span class="sourceLineNo">067</span> * Callable task. TODO. We don't need a thread pool to execute roll log. This can be simplified<a name="line.67"></a> +<span class="sourceLineNo">068</span> * with no use of sub-procedure pool.<a name="line.68"></a> +<span class="sourceLineNo">069</span> */<a name="line.69"></a> +<span class="sourceLineNo">070</span> class RSRollLogTask implements Callable<Void> {<a name="line.70"></a> +<span class="sourceLineNo">071</span> RSRollLogTask() {<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> @Override<a name="line.74"></a> +<span class="sourceLineNo">075</span> public Void call() throws Exception {<a name="line.75"></a> +<span class="sourceLineNo">076</span> if (LOG.isDebugEnabled()) {<a name="line.76"></a> +<span class="sourceLineNo">077</span> LOG.debug("DRPC started: " + rss.getServerName());<a name="line.77"></a> +<span class="sourceLineNo">078</span> }<a name="line.78"></a> +<span class="sourceLineNo">079</span><a name="line.79"></a> +<span class="sourceLineNo">080</span> AbstractFSWAL<?> fsWAL = (AbstractFSWAL<?>) rss.getWAL(null);<a name="line.80"></a> +<span class="sourceLineNo">081</span> long filenum = fsWAL.getFilenum();<a name="line.81"></a> +<span class="sourceLineNo">082</span> List<WAL> wals = rss.getWALs();<a name="line.82"></a> +<span class="sourceLineNo">083</span> long highest = -1;<a name="line.83"></a> +<span class="sourceLineNo">084</span> for (WAL wal : wals) {<a name="line.84"></a> +<span class="sourceLineNo">085</span> if (wal == null) continue;<a name="line.85"></a> +<span class="sourceLineNo">086</span> if (((AbstractFSWAL<?>) wal).getFilenum() > highest) {<a name="line.86"></a> +<span class="sourceLineNo">087</span> highest = ((AbstractFSWAL<?>) wal).getFilenum();<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> LOG.info("Trying to roll log in backup subprocedure, current log number: " + filenum<a name="line.91"></a> +<span class="sourceLineNo">092</span> + " highest: " + highest + " on " + rss.getServerName());<a name="line.92"></a> +<span class="sourceLineNo">093</span> ((HRegionServer) rss).getWalRoller().requestRollAll();<a name="line.93"></a> +<span class="sourceLineNo">094</span> long start = EnvironmentEdgeManager.currentTime();<a name="line.94"></a> +<span class="sourceLineNo">095</span> while (!((HRegionServer) rss).getWalRoller().walRollFinished()) {<a name="line.95"></a> +<span class="sourceLineNo">096</span> Thread.sleep(20);<a name="line.96"></a> +<span class="sourceLineNo">097</span> }<a name="line.97"></a> +<span class="sourceLineNo">098</span> LOG.debug("log roll took " + (EnvironmentEdgeManager.currentTime() - start));<a name="line.98"></a> +<span class="sourceLineNo">099</span> LOG.info("After roll log in backup subprocedure, current log number: " + fsWAL.getFilenum()<a name="line.99"></a> +<span class="sourceLineNo">100</span> + " on " + rss.getServerName());<a name="line.100"></a> +<span class="sourceLineNo">101</span><a name="line.101"></a> +<span class="sourceLineNo">102</span> Connection connection = rss.getConnection();<a name="line.102"></a> +<span class="sourceLineNo">103</span> try (final BackupSystemTable table = new BackupSystemTable(connection)) {<a name="line.103"></a> +<span class="sourceLineNo">104</span> // sanity check, good for testing<a name="line.104"></a> +<span class="sourceLineNo">105</span> HashMap<String, Long> serverTimestampMap =<a name="line.105"></a> +<span class="sourceLineNo">106</span> table.readRegionServerLastLogRollResult(backupRoot);<a name="line.106"></a> +<span class="sourceLineNo">107</span> String host = rss.getServerName().getHostname();<a name="line.107"></a> +<span class="sourceLineNo">108</span> int port = rss.getServerName().getPort();<a name="line.108"></a> +<span class="sourceLineNo">109</span> String server = host + ":" + port;<a name="line.109"></a> +<span class="sourceLineNo">110</span> Long sts = serverTimestampMap.get(host);<a name="line.110"></a> +<span class="sourceLineNo">111</span> if (sts != null && sts > highest) {<a name="line.111"></a> +<span class="sourceLineNo">112</span> LOG.warn("Won't update server's last roll log result: current=" + sts + " new=" + highest);<a name="line.112"></a> +<span class="sourceLineNo">113</span> return null;<a name="line.113"></a> +<span class="sourceLineNo">114</span> }<a name="line.114"></a> +<span class="sourceLineNo">115</span> // write the log number to backup system table.<a name="line.115"></a> +<span class="sourceLineNo">116</span> table.writeRegionServerLastLogRollResult(server, highest, backupRoot);<a name="line.116"></a> +<span class="sourceLineNo">117</span> return null;<a name="line.117"></a> +<span class="sourceLineNo">118</span> } catch (Exception e) {<a name="line.118"></a> +<span class="sourceLineNo">119</span> LOG.error(e);<a name="line.119"></a> +<span class="sourceLineNo">120</span> throw e;<a name="line.120"></a> +<span class="sourceLineNo">121</span> }<a name="line.121"></a> +<span class="sourceLineNo">122</span> }<a name="line.122"></a> +<span class="sourceLineNo">123</span> }<a name="line.123"></a> +<span class="sourceLineNo">124</span><a name="line.124"></a> +<span class="sourceLineNo">125</span> private void rolllog() throws ForeignException {<a name="line.125"></a> +<span class="sourceLineNo">126</span> monitor.rethrowException();<a name="line.126"></a> +<span class="sourceLineNo">127</span><a name="line.127"></a> +<span class="sourceLineNo">128</span> taskManager.submitTask(new RSRollLogTask());<a name="line.128"></a> +<span class="sourceLineNo">129</span> monitor.rethrowException();<a name="line.129"></a> +<span class="sourceLineNo">130</span><a name="line.130"></a> +<span class="sourceLineNo">131</span> // wait for everything to complete.<a name="line.131"></a> +<span class="sourceLineNo">132</span> taskManager.waitForOutstandingTasks();<a name="line.132"></a> +<span class="sourceLineNo">133</span> monitor.rethrowException();<a name="line.133"></a> +<span class="sourceLineNo">134</span><a name="line.134"></a> +<span class="sourceLineNo">135</span> }<a name="line.135"></a> +<span class="sourceLineNo">136</span><a name="line.136"></a> +<span class="sourceLineNo">137</span> @Override<a name="line.137"></a> +<span class="sourceLineNo">138</span> public void acquireBarrier() throws ForeignException {<a name="line.138"></a> +<span class="sourceLineNo">139</span> // do nothing, executing in inside barrier step.<a name="line.139"></a> +<span class="sourceLineNo">140</span> }<a name="line.140"></a> +<span class="sourceLineNo">141</span><a name="line.141"></a> +<span class="sourceLineNo">142</span> /**<a name="line.142"></a> +<span class="sourceLineNo">143</span> * do a log roll.<a name="line.143"></a> +<span class="sourceLineNo">144</span> * @return some bytes<a name="line.144"></a> +<span class="sourceLineNo">145</span> */<a name="line.145"></a> +<span class="sourceLineNo">146</span> @Override<a name="line.146"></a> +<span class="sourceLineNo">147</span> public byte[] insideBarrier() throws ForeignException {<a name="line.147"></a> +<span class="sourceLineNo">148</span> rolllog();<a name="line.148"></a> +<span class="sourceLineNo">149</span> return null;<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> /**<a name="line.152"></a> +<span class="sourceLineNo">153</span> * Cancel threads if they haven't finished.<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 cleanup(Exception e) {<a name="line.156"></a> +<span class="sourceLineNo">157</span> taskManager.abort("Aborting log roll subprocedure tasks for backup due to error", e);<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> /**<a name="line.160"></a> +<span class="sourceLineNo">161</span> * Hooray!<a name="line.161"></a> +<span class="sourceLineNo">162</span> */<a name="line.162"></a> +<span class="sourceLineNo">163</span> public void releaseBarrier() {<a name="line.163"></a> +<span class="sourceLineNo">164</span> // NO OP<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>}<a name="line.167"></a>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/e60b829c/devapidocs/src-html/org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html b/devapidocs/src-html/org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html index 86edc57..9d45869 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/backup/regionserver/LogRollBackupSubprocedure.html @@ -34,146 +34,145 @@ <span class="sourceLineNo">026</span>import org.apache.commons.logging.LogFactory;<a name="line.26"></a> <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.backup.impl.BackupSystemTable;<a name="line.27"></a> <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.backup.master.LogRollMasterProcedureManager;<a name="line.28"></a> -<span class="sourceLineNo">029</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.29"></a> -<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.30"></a> -<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.errorhandling.ForeignException;<a name="line.31"></a> -<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher;<a name="line.32"></a> -<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.procedure.ProcedureMember;<a name="line.33"></a> -<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.procedure.Subprocedure;<a name="line.34"></a> -<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.regionserver.HRegionServer;<a name="line.35"></a> -<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.regionserver.RegionServerServices;<a name="line.36"></a> -<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.regionserver.wal.AbstractFSWAL;<a name="line.37"></a> -<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.regionserver.wal.FSHLog;<a name="line.38"></a> -<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.39"></a> -<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.wal.WAL;<a name="line.40"></a> -<span class="sourceLineNo">041</span><a name="line.41"></a> -<span class="sourceLineNo">042</span>/**<a name="line.42"></a> -<span class="sourceLineNo">043</span> * This backup sub-procedure implementation forces a WAL rolling on a RS.<a name="line.43"></a> -<span class="sourceLineNo">044</span> */<a name="line.44"></a> -<span class="sourceLineNo">045</span>@InterfaceAudience.Private<a name="line.45"></a> -<span class="sourceLineNo">046</span>public class LogRollBackupSubprocedure extends Subprocedure {<a name="line.46"></a> -<span class="sourceLineNo">047</span> private static final Log LOG = LogFactory.getLog(LogRollBackupSubprocedure.class);<a name="line.47"></a> -<span class="sourceLineNo">048</span><a name="line.48"></a> -<span class="sourceLineNo">049</span> private final RegionServerServices rss;<a name="line.49"></a> -<span class="sourceLineNo">050</span> private final LogRollBackupSubprocedurePool taskManager;<a name="line.50"></a> -<span class="sourceLineNo">051</span> private FSHLog hlog;<a name="line.51"></a> -<span class="sourceLineNo">052</span> private String backupRoot;<a name="line.52"></a> -<span class="sourceLineNo">053</span><a name="line.53"></a> -<span class="sourceLineNo">054</span> public LogRollBackupSubprocedure(RegionServerServices rss, ProcedureMember member,<a name="line.54"></a> -<span class="sourceLineNo">055</span> ForeignExceptionDispatcher errorListener, long wakeFrequency, long timeout,<a name="line.55"></a> -<span class="sourceLineNo">056</span> LogRollBackupSubprocedurePool taskManager, byte[] data) {<a name="line.56"></a> -<span class="sourceLineNo">057</span><a name="line.57"></a> -<span class="sourceLineNo">058</span> super(member, LogRollMasterProcedureManager.ROLLLOG_PROCEDURE_NAME, errorListener,<a name="line.58"></a> -<span class="sourceLineNo">059</span> wakeFrequency, timeout);<a name="line.59"></a> -<span class="sourceLineNo">060</span> LOG.info("Constructing a LogRollBackupSubprocedure.");<a name="line.60"></a> -<span class="sourceLineNo">061</span> this.rss = rss;<a name="line.61"></a> -<span class="sourceLineNo">062</span> this.taskManager = taskManager;<a name="line.62"></a> -<span class="sourceLineNo">063</span> if (data != null) {<a name="line.63"></a> -<span class="sourceLineNo">064</span> backupRoot = new String(data);<a name="line.64"></a> -<span class="sourceLineNo">065</span> }<a name="line.65"></a> -<span class="sourceLineNo">066</span> }<a name="line.66"></a> -<span class="sourceLineNo">067</span><a name="line.67"></a> -<span class="sourceLineNo">068</span> /**<a name="line.68"></a> -<span class="sourceLineNo">069</span> * Callable task. TODO. We don't need a thread pool to execute roll log. This can be simplified<a name="line.69"></a> -<span class="sourceLineNo">070</span> * with no use of subprocedurepool.<a name="line.70"></a> -<span class="sourceLineNo">071</span> */<a name="line.71"></a> -<span class="sourceLineNo">072</span> class RSRollLogTask implements Callable<Void> {<a name="line.72"></a> -<span class="sourceLineNo">073</span> RSRollLogTask() {<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> @Override<a name="line.76"></a> -<span class="sourceLineNo">077</span> public Void call() throws Exception {<a name="line.77"></a> -<span class="sourceLineNo">078</span> if (LOG.isDebugEnabled()) {<a name="line.78"></a> -<span class="sourceLineNo">079</span> LOG.debug("++ DRPC started: " + rss.getServerName());<a name="line.79"></a> -<span class="sourceLineNo">080</span> }<a name="line.80"></a> -<span class="sourceLineNo">081</span> hlog = (FSHLog) rss.getWAL(null);<a name="line.81"></a> -<span class="sourceLineNo">082</span> long filenum = hlog.getFilenum();<a name="line.82"></a> -<span class="sourceLineNo">083</span> List<WAL> wals = rss.getWALs();<a name="line.83"></a> -<span class="sourceLineNo">084</span> long highest = -1;<a name="line.84"></a> -<span class="sourceLineNo">085</span> for (WAL wal : wals) {<a name="line.85"></a> -<span class="sourceLineNo">086</span> if (wal == null) continue;<a name="line.86"></a> -<span class="sourceLineNo">087</span> if (((AbstractFSWAL) wal).getFilenum() > highest) {<a name="line.87"></a> -<span class="sourceLineNo">088</span> highest = ((AbstractFSWAL) wal).getFilenum();<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> LOG.info("Trying to roll log in backup subprocedure, current log number: " + filenum<a name="line.92"></a> -<span class="sourceLineNo">093</span> + " highest: " + highest + " on " + rss.getServerName());<a name="line.93"></a> -<span class="sourceLineNo">094</span> ((HRegionServer) rss).getWalRoller().requestRollAll();<a name="line.94"></a> -<span class="sourceLineNo">095</span> long start = EnvironmentEdgeManager.currentTime();<a name="line.95"></a> -<span class="sourceLineNo">096</span> while (!((HRegionServer) rss).getWalRoller().walRollFinished()) {<a name="line.96"></a> -<span class="sourceLineNo">097</span> Thread.sleep(20);<a name="line.97"></a> -<span class="sourceLineNo">098</span> }<a name="line.98"></a> -<span class="sourceLineNo">099</span> LOG.debug("log roll took " + (EnvironmentEdgeManager.currentTime() - start));<a name="line.99"></a> -<span class="sourceLineNo">100</span> LOG.info("After roll log in backup subprocedure, current log number: " + hlog.getFilenum()<a name="line.100"></a> -<span class="sourceLineNo">101</span> + " on " + rss.getServerName());<a name="line.101"></a> -<span class="sourceLineNo">102</span><a name="line.102"></a> -<span class="sourceLineNo">103</span> Connection connection = rss.getConnection();<a name="line.103"></a> -<span class="sourceLineNo">104</span> try (final BackupSystemTable table = new BackupSystemTable(connection)) {<a name="line.104"></a> -<span class="sourceLineNo">105</span> // sanity check, good for testing<a name="line.105"></a> -<span class="sourceLineNo">106</span> HashMap<String, Long> serverTimestampMap =<a name="line.106"></a> -<span class="sourceLineNo">107</span> table.readRegionServerLastLogRollResult(backupRoot);<a name="line.107"></a> -<span class="sourceLineNo">108</span> String host = rss.getServerName().getHostname();<a name="line.108"></a> -<span class="sourceLineNo">109</span> int port = rss.getServerName().getPort();<a name="line.109"></a> -<span class="sourceLineNo">110</span> String server = host + ":" + port;<a name="line.110"></a> -<span class="sourceLineNo">111</span> Long sts = serverTimestampMap.get(host);<a name="line.111"></a> -<span class="sourceLineNo">112</span> if (sts != null && sts > highest) {<a name="line.112"></a> -<span class="sourceLineNo">113</span> LOG.warn("Won't update server's last roll log result: current=" + sts + " new=" + highest);<a name="line.113"></a> -<span class="sourceLineNo">114</span> return null;<a name="line.114"></a> -<span class="sourceLineNo">115</span> }<a name="line.115"></a> -<span class="sourceLineNo">116</span> // write the log number to backup system table.<a name="line.116"></a> -<span class="sourceLineNo">117</span> table.writeRegionServerLastLogRollResult(server, highest, backupRoot);<a name="line.117"></a> -<span class="sourceLineNo">118</span> return null;<a name="line.118"></a> -<span class="sourceLineNo">119</span> } catch (Exception e) {<a name="line.119"></a> -<span class="sourceLineNo">120</span> LOG.error(e);<a name="line.120"></a> -<span class="sourceLineNo">121</span> throw e;<a name="line.121"></a> -<span class="sourceLineNo">122</span> }<a name="line.122"></a> -<span class="sourceLineNo">123</span> }<a name="line.123"></a> -<span class="sourceLineNo">124</span> }<a name="line.124"></a> -<span class="sourceLineNo">125</span><a name="line.125"></a> -<span class="sourceLineNo">126</span> private void rolllog() throws ForeignException {<a name="line.126"></a> -<span class="sourceLineNo">127</span> monitor.rethrowException();<a name="line.127"></a> -<span class="sourceLineNo">128</span><a name="line.128"></a> -<span class="sourceLineNo">129</span> taskManager.submitTask(new RSRollLogTask());<a name="line.129"></a> -<span class="sourceLineNo">130</span> monitor.rethrowException();<a name="line.130"></a> -<span class="sourceLineNo">131</span><a name="line.131"></a> -<span class="sourceLineNo">132</span> // wait for everything to complete.<a name="line.132"></a> -<span class="sourceLineNo">133</span> taskManager.waitForOutstandingTasks();<a name="line.133"></a> -<span class="sourceLineNo">134</span> monitor.rethrowException();<a name="line.134"></a> -<span class="sourceLineNo">135</span><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> @Override<a name="line.138"></a> -<span class="sourceLineNo">139</span> public void acquireBarrier() throws ForeignException {<a name="line.139"></a> -<span class="sourceLineNo">140</span> // do nothing, executing in inside barrier step.<a name="line.140"></a> -<span class="sourceLineNo">141</span> }<a name="line.141"></a> -<span class="sourceLineNo">142</span><a name="line.142"></a> -<span class="sourceLineNo">143</span> /**<a name="line.143"></a> -<span class="sourceLineNo">144</span> * do a log roll.<a name="line.144"></a> -<span class="sourceLineNo">145</span> * @return some bytes<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 byte[] insideBarrier() throws ForeignException {<a name="line.148"></a> -<span class="sourceLineNo">149</span> rolllog();<a name="line.149"></a> -<span class="sourceLineNo">150</span> return null;<a name="line.150"></a> -<span class="sourceLineNo">151</span> }<a name="line.151"></a> -<span class="sourceLineNo">152</span><a name="line.152"></a> -<span class="sourceLineNo">153</span> /**<a name="line.153"></a> -<span class="sourceLineNo">154</span> * Cancel threads if they haven't finished.<a name="line.154"></a> -<span class="sourceLineNo">155</span> */<a name="line.155"></a> -<span class="sourceLineNo">156</span> @Override<a name="line.156"></a> -<span class="sourceLineNo">157</span> public void cleanup(Exception e) {<a name="line.157"></a> -<span class="sourceLineNo">158</span> taskManager.abort("Aborting log roll subprocedure tasks for backup due to error", e);<a name="line.158"></a> -<span class="sourceLineNo">159</span> }<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> * Hooray!<a name="line.162"></a> -<span class="sourceLineNo">163</span> */<a name="line.163"></a> -<span class="sourceLineNo">164</span> public void releaseBarrier() {<a name="line.164"></a> -<span class="sourceLineNo">165</span> // NO OP<a name="line.165"></a> -<span class="sourceLineNo">166</span> }<a name="line.166"></a> -<span class="sourceLineNo">167</span><a name="line.167"></a> -<span class="sourceLineNo">168</span>}<a name="line.168"></a> +<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.29"></a> +<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.errorhandling.ForeignException;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.procedure.ProcedureMember;<a name="line.32"></a> +<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.procedure.Subprocedure;<a name="line.33"></a> +<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.regionserver.HRegionServer;<a name="line.34"></a> +<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.regionserver.RegionServerServices;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.regionserver.wal.AbstractFSWAL;<a name="line.36"></a> +<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.37"></a> +<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.wal.WAL;<a name="line.38"></a> +<span class="sourceLineNo">039</span>import org.apache.yetus.audience.InterfaceAudience;<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> * This backup sub-procedure implementation forces a WAL rolling on a RS.<a name="line.42"></a> +<span class="sourceLineNo">043</span> */<a name="line.43"></a> +<span class="sourceLineNo">044</span>@InterfaceAudience.Private<a name="line.44"></a> +<span class="sourceLineNo">045</span>public class LogRollBackupSubprocedure extends Subprocedure {<a name="line.45"></a> +<span class="sourceLineNo">046</span> private static final Log LOG = LogFactory.getLog(LogRollBackupSubprocedure.class);<a name="line.46"></a> +<span class="sourceLineNo">047</span><a name="line.47"></a> +<span class="sourceLineNo">048</span> private final RegionServerServices rss;<a name="line.48"></a> +<span class="sourceLineNo">049</span> private final LogRollBackupSubprocedurePool taskManager;<a name="line.49"></a> +<span class="sourceLineNo">050</span> private String backupRoot;<a name="line.50"></a> +<span class="sourceLineNo">051</span><a name="line.51"></a> +<span class="sourceLineNo">052</span> public LogRollBackupSubprocedure(RegionServerServices rss, ProcedureMember member,<a name="line.52"></a> +<span class="sourceLineNo">053</span> ForeignExceptionDispatcher errorListener, long wakeFrequency, long timeout,<a name="line.53"></a> +<span class="sourceLineNo">054</span> LogRollBackupSubprocedurePool taskManager, byte[] data) {<a name="line.54"></a> +<span class="sourceLineNo">055</span><a name="line.55"></a> +<span class="sourceLineNo">056</span> super(member, LogRollMasterProcedureManager.ROLLLOG_PROCEDURE_NAME, errorListener,<a name="line.56"></a> +<span class="sourceLineNo">057</span> wakeFrequency, timeout);<a name="line.57"></a> +<span class="sourceLineNo">058</span> LOG.info("Constructing a LogRollBackupSubprocedure.");<a name="line.58"></a> +<span class="sourceLineNo">059</span> this.rss = rss;<a name="line.59"></a> +<span class="sourceLineNo">060</span> this.taskManager = taskManager;<a name="line.60"></a> +<span class="sourceLineNo">061</span> if (data != null) {<a name="line.61"></a> +<span class="sourceLineNo">062</span> backupRoot = new String(data);<a name="line.62"></a> +<span class="sourceLineNo">063</span> }<a name="line.63"></a> +<span class="sourceLineNo">064</span> }<a name="line.64"></a> +<span class="sourceLineNo">065</span><a name="line.65"></a> +<span class="sourceLineNo">066</span> /**<a name="line.66"></a> +<span class="sourceLineNo">067</span> * Callable task. TODO. We don't need a thread pool to execute roll log. This can be simplified<a name="line.67"></a> +<span class="sourceLineNo">068</span> * with no use of sub-procedure pool.<a name="line.68"></a> +<span class="sourceLineNo">069</span> */<a name="line.69"></a> +<span class="sourceLineNo">070</span> class RSRollLogTask implements Callable<Void> {<a name="line.70"></a> +<span class="sourceLineNo">071</span> RSRollLogTask() {<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> @Override<a name="line.74"></a> +<span class="sourceLineNo">075</span> public Void call() throws Exception {<a name="line.75"></a> +<span class="sourceLineNo">076</span> if (LOG.isDebugEnabled()) {<a name="line.76"></a> +<span class="sourceLineNo">077</span> LOG.debug("DRPC started: " + rss.getServerName());<a name="line.77"></a> +<span class="sourceLineNo">078</span> }<a name="line.78"></a> +<span class="sourceLineNo">079</span><a name="line.79"></a> +<span class="sourceLineNo">080</span> AbstractFSWAL<?> fsWAL = (AbstractFSWAL<?>) rss.getWAL(null);<a name="line.80"></a> +<span class="sourceLineNo">081</span> long filenum = fsWAL.getFilenum();<a name="line.81"></a> +<span class="sourceLineNo">082</span> List<WAL> wals = rss.getWALs();<a name="line.82"></a> +<span class="sourceLineNo">083</span> long highest = -1;<a name="line.83"></a> +<span class="sourceLineNo">084</span> for (WAL wal : wals) {<a name="line.84"></a> +<span class="sourceLineNo">085</span> if (wal == null) continue;<a name="line.85"></a> +<span class="sourceLineNo">086</span> if (((AbstractFSWAL<?>) wal).getFilenum() > highest) {<a name="line.86"></a> +<span class="sourceLineNo">087</span> highest = ((AbstractFSWAL<?>) wal).getFilenum();<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> LOG.info("Trying to roll log in backup subprocedure, current log number: " + filenum<a name="line.91"></a> +<span class="sourceLineNo">092</span> + " highest: " + highest + " on " + rss.getServerName());<a name="line.92"></a> +<span class="sourceLineNo">093</span> ((HRegionServer) rss).getWalRoller().requestRollAll();<a name="line.93"></a> +<span class="sourceLineNo">094</span> long start = EnvironmentEdgeManager.currentTime();<a name="line.94"></a> +<span class="sourceLineNo">095</span> while (!((HRegionServer) rss).getWalRoller().walRollFinished()) {<a name="line.95"></a> +<span class="sourceLineNo">096</span> Thread.sleep(20);<a name="line.96"></a> +<span class="sourceLineNo">097</span> }<a name="line.97"></a> +<span class="sourceLineNo">098</span> LOG.debug("log roll took " + (EnvironmentEdgeManager.currentTime() - start));<a name="line.98"></a> +<span class="sourceLineNo">099</span> LOG.info("After roll log in backup subprocedure, current log number: " + fsWAL.getFilenum()<a name="line.99"></a> +<span class="sourceLineNo">100</span> + " on " + rss.getServerName());<a name="line.100"></a> +<span class="sourceLineNo">101</span><a name="line.101"></a> +<span class="sourceLineNo">102</span> Connection connection = rss.getConnection();<a name="line.102"></a> +<span class="sourceLineNo">103</span> try (final BackupSystemTable table = new BackupSystemTable(connection)) {<a name="line.103"></a> +<span class="sourceLineNo">104</span> // sanity check, good for testing<a name="line.104"></a> +<span class="sourceLineNo">105</span> HashMap<String, Long> serverTimestampMap =<a name="line.105"></a> +<span class="sourceLineNo">106</span> table.readRegionServerLastLogRollResult(backupRoot);<a name="line.106"></a> +<span class="sourceLineNo">107</span> String host = rss.getServerName().getHostname();<a name="line.107"></a> +<span class="sourceLineNo">108</span> int port = rss.getServerName().getPort();<a name="line.108"></a> +<span class="sourceLineNo">109</span> String server = host + ":" + port;<a name="line.109"></a> +<span class="sourceLineNo">110</span> Long sts = serverTimestampMap.get(host);<a name="line.110"></a> +<span class="sourceLineNo">111</span> if (sts != null && sts > highest) {<a name="line.111"></a> +<span class="sourceLineNo">112</span> LOG.warn("Won't update server's last roll log result: current=" + sts + " new=" + highest);<a name="line.112"></a> +<span class="sourceLineNo">113</span> return null;<a name="line.113"></a> +<span class="sourceLineNo">114</span> }<a name="line.114"></a> +<span class="sourceLineNo">115</span> // write the log number to backup system table.<a name="line.115"></a> +<span class="sourceLineNo">116</span> table.writeRegionServerLastLogRollResult(server, highest, backupRoot);<a name="line.116"></a> +<span class="sourceLineNo">117</span> return null;<a name="line.117"></a> +<span class="sourceLineNo">118</span> } catch (Exception e) {<a name="line.118"></a> +<span class="sourceLineNo">119</span> LOG.error(e);<a name="line.119"></a> +<span class="sourceLineNo">120</span> throw e;<a name="line.120"></a> +<span class="sourceLineNo">121</span> }<a name="line.121"></a> +<span class="sourceLineNo">122</span> }<a name="line.122"></a> +<span class="sourceLineNo">123</span> }<a name="line.123"></a> +<span class="sourceLineNo">124</span><a name="line.124"></a> +<span class="sourceLineNo">125</span> private void rolllog() throws ForeignException {<a name="line.125"></a> +<span class="sourceLineNo">126</span> monitor.rethrowException();<a name="line.126"></a> +<span class="sourceLineNo">127</span><a name="line.127"></a> +<span class="sourceLineNo">128</span> taskManager.submitTask(new RSRollLogTask());<a name="line.128"></a> +<span class="sourceLineNo">129</span> monitor.rethrowException();<a name="line.129"></a> +<span class="sourceLineNo">130</span><a name="line.130"></a> +<span class="sourceLineNo">131</span> // wait for everything to complete.<a name="line.131"></a> +<span class="sourceLineNo">132</span> taskManager.waitForOutstandingTasks();<a name="line.132"></a> +<span class="sourceLineNo">133</span> monitor.rethrowException();<a name="line.133"></a> +<span class="sourceLineNo">134</span><a name="line.134"></a> +<span class="sourceLineNo">135</span> }<a name="line.135"></a> +<span class="sourceLineNo">136</span><a name="line.136"></a> +<span class="sourceLineNo">137</span> @Override<a name="line.137"></a> +<span class="sourceLineNo">138</span> public void acquireBarrier() throws ForeignException {<a name="line.138"></a> +<span class="sourceLineNo">139</span> // do nothing, executing in inside barrier step.<a name="line.139"></a> +<span class="sourceLineNo">140</span> }<a name="line.140"></a> +<span class="sourceLineNo">141</span><a name="line.141"></a> +<span class="sourceLineNo">142</span> /**<a name="line.142"></a> +<span class="sourceLineNo">143</span> * do a log roll.<a name="line.143"></a> +<span class="sourceLineNo">144</span> * @return some bytes<a name="line.144"></a> +<span class="sourceLineNo">145</span> */<a name="line.145"></a> +<span class="sourceLineNo">146</span> @Override<a name="line.146"></a> +<span class="sourceLineNo">147</span> public byte[] insideBarrier() throws ForeignException {<a name="line.147"></a> +<span class="sourceLineNo">148</span> rolllog();<a name="line.148"></a> +<span class="sourceLineNo">149</span> return null;<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> /**<a name="line.152"></a> +<span class="sourceLineNo">153</span> * Cancel threads if they haven't finished.<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 cleanup(Exception e) {<a name="line.156"></a> +<span class="sourceLineNo">157</span> taskManager.abort("Aborting log roll subprocedure tasks for backup due to error", e);<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> /**<a name="line.160"></a> +<span class="sourceLineNo">161</span> * Hooray!<a name="line.161"></a> +<span class="sourceLineNo">162</span> */<a name="line.162"></a> +<span class="sourceLineNo">163</span> public void releaseBarrier() {<a name="line.163"></a> +<span class="sourceLineNo">164</span> // NO OP<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>}<a name="line.167"></a>
