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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/04/16 14:46:34 UTC
[09/12] hbase-site git commit: Published site at
773aff90fdf9edf4687b373d1c7ba859d166a437.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/5269c877/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/ReplicationSourceWALReader.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/ReplicationSourceWALReader.html b/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/ReplicationSourceWALReader.html
index 309a1f7..976c263 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/ReplicationSourceWALReader.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/ReplicationSourceWALReader.html
@@ -134,277 +134,281 @@
<span class="sourceLineNo">126</span> source.getWALFileLengthProvider(), source.getServerWALsBelongTo(),<a name="line.126"></a>
<span class="sourceLineNo">127</span> source.getSourceMetrics())) {<a name="line.127"></a>
<span class="sourceLineNo">128</span> while (isReaderRunning()) { // loop here to keep reusing stream while we can<a name="line.128"></a>
-<span class="sourceLineNo">129</span> if (!checkQuota()) {<a name="line.129"></a>
-<span class="sourceLineNo">130</span> continue;<a name="line.130"></a>
-<span class="sourceLineNo">131</span> }<a name="line.131"></a>
-<span class="sourceLineNo">132</span> WALEntryBatch batch = readWALEntries(entryStream);<a name="line.132"></a>
-<span class="sourceLineNo">133</span> currentPosition = entryStream.getPosition();<a name="line.133"></a>
-<span class="sourceLineNo">134</span> if (batch != null) {<a name="line.134"></a>
-<span class="sourceLineNo">135</span> // need to propagate the batch even it has no entries since it may carry the last<a name="line.135"></a>
-<span class="sourceLineNo">136</span> // sequence id information for serial replication.<a name="line.136"></a>
-<span class="sourceLineNo">137</span> LOG.trace("Read {} WAL entries eligible for replication", batch.getNbEntries());<a name="line.137"></a>
-<span class="sourceLineNo">138</span> entryBatchQueue.put(batch);<a name="line.138"></a>
-<span class="sourceLineNo">139</span> sleepMultiplier = 1;<a name="line.139"></a>
-<span class="sourceLineNo">140</span> } else { // got no entries and didn't advance position in WAL<a name="line.140"></a>
-<span class="sourceLineNo">141</span> handleEmptyWALEntryBatch(entryStream.getCurrentPath());<a name="line.141"></a>
-<span class="sourceLineNo">142</span> entryStream.reset(); // reuse stream<a name="line.142"></a>
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-<span class="sourceLineNo">144</span> }<a name="line.144"></a>
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-<span class="sourceLineNo">146</span> if (sleepMultiplier < maxRetriesMultiplier) {<a name="line.146"></a>
-<span class="sourceLineNo">147</span> LOG.debug("Failed to read stream of replication entries: " + e);<a name="line.147"></a>
-<span class="sourceLineNo">148</span> sleepMultiplier++;<a name="line.148"></a>
-<span class="sourceLineNo">149</span> } else {<a name="line.149"></a>
-<span class="sourceLineNo">150</span> LOG.error("Failed to read stream of replication entries", e);<a name="line.150"></a>
-<span class="sourceLineNo">151</span> handleEofException(e);<a name="line.151"></a>
-<span class="sourceLineNo">152</span> }<a name="line.152"></a>
-<span class="sourceLineNo">153</span> Threads.sleep(sleepForRetries * sleepMultiplier);<a name="line.153"></a>
-<span class="sourceLineNo">154</span> } catch (InterruptedException e) {<a name="line.154"></a>
-<span class="sourceLineNo">155</span> LOG.trace("Interrupted while sleeping between WAL reads");<a name="line.155"></a>
-<span class="sourceLineNo">156</span> Thread.currentThread().interrupt();<a name="line.156"></a>
-<span class="sourceLineNo">157</span> }<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> // returns true if we reach the size limit for batch, i.e, we need to finish the batch and return.<a name="line.161"></a>
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-<span class="sourceLineNo">163</span> WALEdit edit = entry.getEdit();<a name="line.163"></a>
-<span class="sourceLineNo">164</span> if (edit == null || edit.isEmpty()) {<a name="line.164"></a>
-<span class="sourceLineNo">165</span> return false;<a name="line.165"></a>
-<span class="sourceLineNo">166</span> }<a name="line.166"></a>
-<span class="sourceLineNo">167</span> long entrySize = getEntrySize(entry);<a name="line.167"></a>
-<span class="sourceLineNo">168</span> batch.addEntry(entry);<a name="line.168"></a>
-<span class="sourceLineNo">169</span> updateBatchStats(batch, entry, entrySize);<a name="line.169"></a>
-<span class="sourceLineNo">170</span> boolean totalBufferTooLarge = acquireBufferQuota(entrySize);<a name="line.170"></a>
-<span class="sourceLineNo">171</span> // Stop if too many entries or too big<a name="line.171"></a>
-<span class="sourceLineNo">172</span> return totalBufferTooLarge || batch.getHeapSize() >= replicationBatchSizeCapacity ||<a name="line.172"></a>
-<span class="sourceLineNo">173</span> batch.getNbEntries() >= replicationBatchCountCapacity;<a name="line.173"></a>
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-<span class="sourceLineNo">178</span> return newPath == null || !path.getName().equals(newPath.getName());<a name="line.178"></a>
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-<span class="sourceLineNo">186</span> if (currentPath != null && switched(entryStream, currentPath)) {<a name="line.186"></a>
-<span class="sourceLineNo">187</span> return WALEntryBatch.endOfFile(currentPath);<a name="line.187"></a>
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-<span class="sourceLineNo">194</span> return WALEntryBatch.endOfFile(currentPath);<a name="line.194"></a>
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-<span class="sourceLineNo">197</span> // when reading from the entry stream first time we will enter here<a name="line.197"></a>
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-<span class="sourceLineNo">200</span> WALEntryBatch batch = createBatch(entryStream);<a name="line.200"></a>
-<span class="sourceLineNo">201</span> for (;;) {<a name="line.201"></a>
-<span class="sourceLineNo">202</span> Entry entry = entryStream.next();<a name="line.202"></a>
-<span class="sourceLineNo">203</span> batch.setLastWalPosition(entryStream.getPosition());<a name="line.203"></a>
-<span class="sourceLineNo">204</span> entry = filterEntry(entry);<a name="line.204"></a>
-<span class="sourceLineNo">205</span> if (entry != null) {<a name="line.205"></a>
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-<span class="sourceLineNo">212</span> if (switched(entryStream, currentPath)) {<a name="line.212"></a>
-<span class="sourceLineNo">213</span> batch.setEndOfFile(true);<a name="line.213"></a>
-<span class="sourceLineNo">214</span> break;<a name="line.214"></a>
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-<span class="sourceLineNo">220</span> return batch;<a name="line.220"></a>
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-<span class="sourceLineNo">222</span><a name="line.222"></a>
-<span class="sourceLineNo">223</span> private void handleEmptyWALEntryBatch(Path currentPath) throws InterruptedException {<a name="line.223"></a>
-<span class="sourceLineNo">224</span> LOG.trace("Didn't read any new entries from WAL");<a name="line.224"></a>
-<span class="sourceLineNo">225</span> if (source.isRecovered()) {<a name="line.225"></a>
-<span class="sourceLineNo">226</span> // we're done with queue recovery, shut ourself down<a name="line.226"></a>
-<span class="sourceLineNo">227</span> setReaderRunning(false);<a name="line.227"></a>
-<span class="sourceLineNo">228</span> // shuts down shipper thread immediately<a name="line.228"></a>
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-<span class="sourceLineNo">230</span> } else {<a name="line.230"></a>
-<span class="sourceLineNo">231</span> Thread.sleep(sleepForRetries);<a name="line.231"></a>
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-<span class="sourceLineNo">239</span> if ((e instanceof EOFException || e.getCause() instanceof EOFException) &&<a name="line.239"></a>
-<span class="sourceLineNo">240</span> logQueue.size() > 1 && this.eofAutoRecovery) {<a name="line.240"></a>
-<span class="sourceLineNo">241</span> try {<a name="line.241"></a>
-<span class="sourceLineNo">242</span> if (fs.getFileStatus(logQueue.peek()).getLen() == 0) {<a name="line.242"></a>
-<span class="sourceLineNo">243</span> LOG.warn("Forcing removal of 0 length log in queue: " + logQueue.peek());<a name="line.243"></a>
-<span class="sourceLineNo">244</span> logQueue.remove();<a name="line.244"></a>
-<span class="sourceLineNo">245</span> currentPosition = 0;<a name="line.245"></a>
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-<span class="sourceLineNo">248</span> LOG.warn("Couldn't get file length information about log " + logQueue.peek());<a name="line.248"></a>
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-<span class="sourceLineNo">255</span> WALEntryBatch batchQueueHead = entryBatchQueue.peek();<a name="line.255"></a>
-<span class="sourceLineNo">256</span> if (batchQueueHead != null) {<a name="line.256"></a>
-<span class="sourceLineNo">257</span> return batchQueueHead.getLastWalPath();<a name="line.257"></a>
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-<span class="sourceLineNo">260</span> return logQueue.peek();<a name="line.260"></a>
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-<span class="sourceLineNo">267</span> Threads.sleep(sleepForRetries);<a name="line.267"></a>
-<span class="sourceLineNo">268</span> return false;<a name="line.268"></a>
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+<span class="sourceLineNo">130</span> Threads.sleep(sleepForRetries);<a name="line.130"></a>
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+<span class="sourceLineNo">208</span> entry = filterEntry(entry);<a name="line.208"></a>
+<span class="sourceLineNo">209</span> if (entry != null) {<a name="line.209"></a>
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