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Posted to commits@hbase.apache.org by gi...@apache.org on 2017/06/19 15:00:24 UTC
[12/30] hbase-site git commit: Published site at
82d554e3783372cc6b05489452c815b57c06f6cd.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/7f23ee04/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/ReplicationSource.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/ReplicationSource.html b/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/ReplicationSource.html
index 6b8f5c5..1c01719 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/ReplicationSource.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/ReplicationSource.html
@@ -127,12 +127,12 @@
<span class="sourceLineNo">119</span> // ReplicationEndpoint which will handle the actual replication<a name="line.119"></a>
<span class="sourceLineNo">120</span> private ReplicationEndpoint replicationEndpoint;<a name="line.120"></a>
<span class="sourceLineNo">121</span> // A filter (or a chain of filters) for the WAL entries.<a name="line.121"></a>
-<span class="sourceLineNo">122</span> private WALEntryFilter walEntryFilter;<a name="line.122"></a>
+<span class="sourceLineNo">122</span> protected WALEntryFilter walEntryFilter;<a name="line.122"></a>
<span class="sourceLineNo">123</span> // throttler<a name="line.123"></a>
<span class="sourceLineNo">124</span> private ReplicationThrottler throttler;<a name="line.124"></a>
<span class="sourceLineNo">125</span> private long defaultBandwidth;<a name="line.125"></a>
<span class="sourceLineNo">126</span> private long currentBandwidth;<a name="line.126"></a>
-<span class="sourceLineNo">127</span> protected final ConcurrentHashMap<String, ReplicationSourceShipperThread> workerThreads =<a name="line.127"></a>
+<span class="sourceLineNo">127</span> protected final ConcurrentHashMap<String, ReplicationSourceShipper> workerThreads =<a name="line.127"></a>
<span class="sourceLineNo">128</span> new ConcurrentHashMap<>();<a name="line.128"></a>
<span class="sourceLineNo">129</span><a name="line.129"></a>
<span class="sourceLineNo">130</span> private AtomicLong totalBufferUsed;<a name="line.130"></a>
@@ -205,7 +205,7 @@
<span class="sourceLineNo">197</span> // new wal group observed after source startup, start a new worker thread to track it<a name="line.197"></a>
<span class="sourceLineNo">198</span> // notice: it's possible that log enqueued when this.running is set but worker thread<a name="line.198"></a>
<span class="sourceLineNo">199</span> // still not launched, so it's necessary to check workerThreads before start the worker<a name="line.199"></a>
-<span class="sourceLineNo">200</span> tryStartNewShipperThread(logPrefix, queue);<a name="line.200"></a>
+<span class="sourceLineNo">200</span> tryStartNewShipper(logPrefix, queue);<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> queue.put(log);<a name="line.203"></a>
@@ -263,305 +263,306 @@
<span class="sourceLineNo">255</span> throw new RuntimeException(ex);<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> // get the WALEntryFilter from ReplicationEndpoint and add it to default filters<a name="line.258"></a>
-<span class="sourceLineNo">259</span> ArrayList<WALEntryFilter> filters = Lists.newArrayList(<a name="line.259"></a>
-<span class="sourceLineNo">260</span> (WALEntryFilter)new SystemTableWALEntryFilter());<a name="line.260"></a>
-<span class="sourceLineNo">261</span> WALEntryFilter filterFromEndpoint = this.replicationEndpoint.getWALEntryfilter();<a name="line.261"></a>
-<span class="sourceLineNo">262</span> if (filterFromEndpoint != null) {<a name="line.262"></a>
-<span class="sourceLineNo">263</span> filters.add(filterFromEndpoint);<a name="line.263"></a>
-<span class="sourceLineNo">264</span> }<a name="line.264"></a>
-<span class="sourceLineNo">265</span> this.walEntryFilter = new ChainWALEntryFilter(filters);<a name="line.265"></a>
-<span class="sourceLineNo">266</span><a name="line.266"></a>
-<span class="sourceLineNo">267</span> int sleepMultiplier = 1;<a name="line.267"></a>
-<span class="sourceLineNo">268</span> // delay this until we are in an asynchronous thread<a name="line.268"></a>
-<span class="sourceLineNo">269</span> while (this.isSourceActive() && this.peerClusterId == null) {<a name="line.269"></a>
-<span class="sourceLineNo">270</span> this.peerClusterId = replicationEndpoint.getPeerUUID();<a name="line.270"></a>
-<span class="sourceLineNo">271</span> if (this.isSourceActive() && this.peerClusterId == null) {<a name="line.271"></a>
-<span class="sourceLineNo">272</span> if (sleepForRetries("Cannot contact the peer's zk ensemble", sleepMultiplier)) {<a name="line.272"></a>
-<span class="sourceLineNo">273</span> sleepMultiplier++;<a name="line.273"></a>
-<span class="sourceLineNo">274</span> }<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> // In rare case, zookeeper setting may be messed up. That leads to the incorrect<a name="line.278"></a>
-<span class="sourceLineNo">279</span> // peerClusterId value, which is the same as the source clusterId<a name="line.279"></a>
-<span class="sourceLineNo">280</span> if (clusterId.equals(peerClusterId) && !replicationEndpoint.canReplicateToSameCluster()) {<a name="line.280"></a>
-<span class="sourceLineNo">281</span> this.terminate("ClusterId " + clusterId + " is replicating to itself: peerClusterId "<a name="line.281"></a>
-<span class="sourceLineNo">282</span> + peerClusterId + " which is not allowed by ReplicationEndpoint:"<a name="line.282"></a>
-<span class="sourceLineNo">283</span> + replicationEndpoint.getClass().getName(), null, false);<a name="line.283"></a>
-<span class="sourceLineNo">284</span> this.manager.closeQueue(this);<a name="line.284"></a>
-<span class="sourceLineNo">285</span> return;<a name="line.285"></a>
+<span class="sourceLineNo">258</span> int sleepMultiplier = 1;<a name="line.258"></a>
+<span class="sourceLineNo">259</span> // delay this until we are in an asynchronous thread<a name="line.259"></a>
+<span class="sourceLineNo">260</span> while (this.isSourceActive() && this.peerClusterId == null) {<a name="line.260"></a>
+<span class="sourceLineNo">261</span> this.peerClusterId = replicationEndpoint.getPeerUUID();<a name="line.261"></a>
+<span class="sourceLineNo">262</span> if (this.isSourceActive() && this.peerClusterId == null) {<a name="line.262"></a>
+<span class="sourceLineNo">263</span> if (sleepForRetries("Cannot contact the peer's zk ensemble", sleepMultiplier)) {<a name="line.263"></a>
+<span class="sourceLineNo">264</span> sleepMultiplier++;<a name="line.264"></a>
+<span class="sourceLineNo">265</span> }<a name="line.265"></a>
+<span class="sourceLineNo">266</span> }<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> // In rare case, zookeeper setting may be messed up. That leads to the incorrect<a name="line.269"></a>
+<span class="sourceLineNo">270</span> // peerClusterId value, which is the same as the source clusterId<a name="line.270"></a>
+<span class="sourceLineNo">271</span> if (clusterId.equals(peerClusterId) && !replicationEndpoint.canReplicateToSameCluster()) {<a name="line.271"></a>
+<span class="sourceLineNo">272</span> this.terminate("ClusterId " + clusterId + " is replicating to itself: peerClusterId "<a name="line.272"></a>
+<span class="sourceLineNo">273</span> + peerClusterId + " which is not allowed by ReplicationEndpoint:"<a name="line.273"></a>
+<span class="sourceLineNo">274</span> + replicationEndpoint.getClass().getName(), null, false);<a name="line.274"></a>
+<span class="sourceLineNo">275</span> this.manager.closeQueue(this);<a name="line.275"></a>
+<span class="sourceLineNo">276</span> return;<a name="line.276"></a>
+<span class="sourceLineNo">277</span> }<a name="line.277"></a>
+<span class="sourceLineNo">278</span> LOG.info("Replicating " + clusterId + " -> " + peerClusterId);<a name="line.278"></a>
+<span class="sourceLineNo">279</span><a name="line.279"></a>
+<span class="sourceLineNo">280</span> initializeWALEntryFilter();<a name="line.280"></a>
+<span class="sourceLineNo">281</span> // start workers<a name="line.281"></a>
+<span class="sourceLineNo">282</span> for (Map.Entry<String, PriorityBlockingQueue<Path>> entry : queues.entrySet()) {<a name="line.282"></a>
+<span class="sourceLineNo">283</span> String walGroupId = entry.getKey();<a name="line.283"></a>
+<span class="sourceLineNo">284</span> PriorityBlockingQueue<Path> queue = entry.getValue();<a name="line.284"></a>
+<span class="sourceLineNo">285</span> tryStartNewShipper(walGroupId, queue);<a name="line.285"></a>
<span class="sourceLineNo">286</span> }<a name="line.286"></a>
-<span class="sourceLineNo">287</span> LOG.info("Replicating " + clusterId + " -> " + peerClusterId);<a name="line.287"></a>
-<span class="sourceLineNo">288</span> // start workers<a name="line.288"></a>
-<span class="sourceLineNo">289</span> for (Map.Entry<String, PriorityBlockingQueue<Path>> entry : queues.entrySet()) {<a name="line.289"></a>
-<span class="sourceLineNo">290</span> String walGroupId = entry.getKey();<a name="line.290"></a>
-<span class="sourceLineNo">291</span> PriorityBlockingQueue<Path> queue = entry.getValue();<a name="line.291"></a>
-<span class="sourceLineNo">292</span> tryStartNewShipperThread(walGroupId, queue);<a name="line.292"></a>
-<span class="sourceLineNo">293</span> }<a name="line.293"></a>
-<span class="sourceLineNo">294</span> }<a name="line.294"></a>
-<span class="sourceLineNo">295</span><a name="line.295"></a>
-<span class="sourceLineNo">296</span> protected void tryStartNewShipperThread(String walGroupId, PriorityBlockingQueue<Path> queue) {<a name="line.296"></a>
-<span class="sourceLineNo">297</span> final ReplicationSourceShipperThread worker = new ReplicationSourceShipperThread(conf,<a name="line.297"></a>
-<span class="sourceLineNo">298</span> walGroupId, queue, this);<a name="line.298"></a>
-<span class="sourceLineNo">299</span> ReplicationSourceShipperThread extant = workerThreads.putIfAbsent(walGroupId, worker);<a name="line.299"></a>
-<span class="sourceLineNo">300</span> if (extant != null) {<a name="line.300"></a>
-<span class="sourceLineNo">301</span> LOG.debug("Someone has beat us to start a worker thread for wal group " + walGroupId);<a name="line.301"></a>
-<span class="sourceLineNo">302</span> } else {<a name="line.302"></a>
-<span class="sourceLineNo">303</span> LOG.debug("Starting up worker for wal group " + walGroupId);<a name="line.303"></a>
-<span class="sourceLineNo">304</span> worker.startup(getUncaughtExceptionHandler());<a name="line.304"></a>
-<span class="sourceLineNo">305</span> worker.setWALReader(startNewWALReaderThread(worker.getName(), walGroupId, queue,<a name="line.305"></a>
-<span class="sourceLineNo">306</span> worker.getStartPosition()));<a name="line.306"></a>
-<span class="sourceLineNo">307</span> workerThreads.put(walGroupId, worker);<a name="line.307"></a>
-<span class="sourceLineNo">308</span> }<a name="line.308"></a>
-<span class="sourceLineNo">309</span> }<a name="line.309"></a>
-<span class="sourceLineNo">310</span><a name="line.310"></a>
-<span class="sourceLineNo">311</span> protected ReplicationSourceWALReaderThread startNewWALReaderThread(String threadName,<a name="line.311"></a>
-<span class="sourceLineNo">312</span> String walGroupId, PriorityBlockingQueue<Path> queue, long startPosition) {<a name="line.312"></a>
-<span class="sourceLineNo">313</span> ArrayList<WALEntryFilter> filters = Lists.newArrayList(walEntryFilter,<a name="line.313"></a>
-<span class="sourceLineNo">314</span> new ClusterMarkingEntryFilter(clusterId, peerClusterId, replicationEndpoint));<a name="line.314"></a>
-<span class="sourceLineNo">315</span> ChainWALEntryFilter readerFilter = new ChainWALEntryFilter(filters);<a name="line.315"></a>
-<span class="sourceLineNo">316</span> ReplicationSourceWALReaderThread walReader = new ReplicationSourceWALReaderThread(manager,<a name="line.316"></a>
-<span class="sourceLineNo">317</span> replicationQueueInfo, queue, startPosition, fs, conf, readerFilter, metrics);<a name="line.317"></a>
-<span class="sourceLineNo">318</span> Threads.setDaemonThreadRunning(walReader, threadName<a name="line.318"></a>
-<span class="sourceLineNo">319</span> + ".replicationSource.replicationWALReaderThread." + walGroupId + "," + peerClusterZnode,<a name="line.319"></a>
-<span class="sourceLineNo">320</span> getUncaughtExceptionHandler());<a name="line.320"></a>
-<span class="sourceLineNo">321</span> return walReader;<a name="line.321"></a>
-<span class="sourceLineNo">322</span> }<a name="line.322"></a>
-<span class="sourceLineNo">323</span><a name="line.323"></a>
-<span class="sourceLineNo">324</span> public Thread.UncaughtExceptionHandler getUncaughtExceptionHandler() {<a name="line.324"></a>
-<span class="sourceLineNo">325</span> return new Thread.UncaughtExceptionHandler() {<a name="line.325"></a>
-<span class="sourceLineNo">326</span> @Override<a name="line.326"></a>
-<span class="sourceLineNo">327</span> public void uncaughtException(final Thread t, final Throwable e) {<a name="line.327"></a>
-<span class="sourceLineNo">328</span> RSRpcServices.exitIfOOME(e);<a name="line.328"></a>
-<span class="sourceLineNo">329</span> LOG.error("Unexpected exception in " + t.getName() + " currentPath=" + getCurrentPath(), e);<a name="line.329"></a>
-<span class="sourceLineNo">330</span> stopper.stop("Unexpected exception in " + t.getName());<a name="line.330"></a>
-<span class="sourceLineNo">331</span> }<a name="line.331"></a>
-<span class="sourceLineNo">332</span> };<a name="line.332"></a>
-<span class="sourceLineNo">333</span> }<a name="line.333"></a>
-<span class="sourceLineNo">334</span><a name="line.334"></a>
-<span class="sourceLineNo">335</span> @Override<a name="line.335"></a>
-<span class="sourceLineNo">336</span> public ReplicationEndpoint getReplicationEndpoint() {<a name="line.336"></a>
-<span class="sourceLineNo">337</span> return this.replicationEndpoint;<a name="line.337"></a>
-<span class="sourceLineNo">338</span> }<a name="line.338"></a>
-<span class="sourceLineNo">339</span><a name="line.339"></a>
-<span class="sourceLineNo">340</span> @Override<a name="line.340"></a>
-<span class="sourceLineNo">341</span> public ReplicationSourceManager getSourceManager() {<a name="line.341"></a>
-<span class="sourceLineNo">342</span> return this.manager;<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 tryThrottle(int batchSize) throws InterruptedException {<a name="line.346"></a>
-<span class="sourceLineNo">347</span> checkBandwidthChangeAndResetThrottler();<a name="line.347"></a>
-<span class="sourceLineNo">348</span> if (throttler.isEnabled()) {<a name="line.348"></a>
-<span class="sourceLineNo">349</span> long sleepTicks = throttler.getNextSleepInterval(batchSize);<a name="line.349"></a>
-<span class="sourceLineNo">350</span> if (sleepTicks > 0) {<a name="line.350"></a>
-<span class="sourceLineNo">351</span> if (LOG.isTraceEnabled()) {<a name="line.351"></a>
-<span class="sourceLineNo">352</span> LOG.trace("To sleep " + sleepTicks + "ms for throttling control");<a name="line.352"></a>
-<span class="sourceLineNo">353</span> }<a name="line.353"></a>
-<span class="sourceLineNo">354</span> Thread.sleep(sleepTicks);<a name="line.354"></a>
-<span class="sourceLineNo">355</span> // reset throttler's cycle start tick when sleep for throttling occurs<a name="line.355"></a>
-<span class="sourceLineNo">356</span> throttler.resetStartTick();<a name="line.356"></a>
-<span class="sourceLineNo">357</span> }<a name="line.357"></a>
-<span class="sourceLineNo">358</span> }<a name="line.358"></a>
-<span class="sourceLineNo">359</span> }<a name="line.359"></a>
-<span class="sourceLineNo">360</span><a name="line.360"></a>
-<span class="sourceLineNo">361</span> private void checkBandwidthChangeAndResetThrottler() {<a name="line.361"></a>
-<span class="sourceLineNo">362</span> long peerBandwidth = getCurrentBandwidth();<a name="line.362"></a>
-<span class="sourceLineNo">363</span> if (peerBandwidth != currentBandwidth) {<a name="line.363"></a>
-<span class="sourceLineNo">364</span> currentBandwidth = peerBandwidth;<a name="line.364"></a>
-<span class="sourceLineNo">365</span> throttler.setBandwidth((double) currentBandwidth / 10.0);<a name="line.365"></a>
-<span class="sourceLineNo">366</span> LOG.info("ReplicationSource : " + peerId<a name="line.366"></a>
-<span class="sourceLineNo">367</span> + " bandwidth throttling changed, currentBandWidth=" + currentBandwidth);<a name="line.367"></a>
-<span class="sourceLineNo">368</span> }<a name="line.368"></a>
-<span class="sourceLineNo">369</span> }<a name="line.369"></a>
-<span class="sourceLineNo">370</span><a name="line.370"></a>
-<span class="sourceLineNo">371</span> private long getCurrentBandwidth() {<a name="line.371"></a>
-<span class="sourceLineNo">372</span> ReplicationPeer replicationPeer = this.replicationPeers.getConnectedPeer(peerId);<a name="line.372"></a>
-<span class="sourceLineNo">373</span> long peerBandwidth = replicationPeer != null ? replicationPeer.getPeerBandwidth() : 0;<a name="line.373"></a>
-<span class="sourceLineNo">374</span> // user can set peer bandwidth to 0 to use default bandwidth<a name="line.374"></a>
-<span class="sourceLineNo">375</span> return peerBandwidth != 0 ? peerBandwidth : defaultBandwidth;<a name="line.375"></a>
-<span class="sourceLineNo">376</span> }<a name="line.376"></a>
-<span class="sourceLineNo">377</span><a name="line.377"></a>
-<span class="sourceLineNo">378</span> private void uninitialize() {<a name="line.378"></a>
-<span class="sourceLineNo">379</span> LOG.debug("Source exiting " + this.peerId);<a name="line.379"></a>
-<span class="sourceLineNo">380</span> metrics.clear();<a name="line.380"></a>
-<span class="sourceLineNo">381</span> if (replicationEndpoint.state() == Service.State.STARTING<a name="line.381"></a>
-<span class="sourceLineNo">382</span> || replicationEndpoint.state() == Service.State.RUNNING) {<a name="line.382"></a>
-<span class="sourceLineNo">383</span> replicationEndpoint.stopAndWait();<a name="line.383"></a>
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-<span class="sourceLineNo">386</span><a name="line.386"></a>
-<span class="sourceLineNo">387</span> /**<a name="line.387"></a>
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-<span class="sourceLineNo">389</span> * @param msg Why we sleep<a name="line.389"></a>
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-<span class="sourceLineNo">394</span> try {<a name="line.394"></a>
-<span class="sourceLineNo">395</span> if (LOG.isTraceEnabled()) {<a name="line.395"></a>
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-<span class="sourceLineNo">408</span> *<a name="line.408"></a>
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-<span class="sourceLineNo">422</span> LOG.error("Unexpected exception in ReplicationSource", e);<a name="line.422"></a>
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+<span class="sourceLineNo">536</span> .append(position).append("\n");<a name="line.536"></a>
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+<span class="sourceLineNo">555</span> totalBufferUsed.addAndGet(-batchSize);<a name="line.555"></a>
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