You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@hbase.apache.org by gi...@apache.org on 2017/12/03 15:18:43 UTC
[33/51] [partial] hbase-site git commit: Published site at .
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/c54c242b/devapidocs/src-html/org/apache/hadoop/hbase/ipc/BlockingRpcConnection.CallSender.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/ipc/BlockingRpcConnection.CallSender.html b/devapidocs/src-html/org/apache/hadoop/hbase/ipc/BlockingRpcConnection.CallSender.html
index 81f352c..0782ea7 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/ipc/BlockingRpcConnection.CallSender.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/ipc/BlockingRpcConnection.CallSender.html
@@ -51,39 +51,39 @@
<span class="sourceLineNo">043</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.43"></a>
<span class="sourceLineNo">044</span>import java.util.concurrent.ConcurrentMap;<a name="line.44"></a>
<span class="sourceLineNo">045</span>import java.util.concurrent.ThreadLocalRandom;<a name="line.45"></a>
-<span class="sourceLineNo">046</span><a name="line.46"></a>
-<span class="sourceLineNo">047</span>import javax.security.sasl.SaslException;<a name="line.47"></a>
-<span class="sourceLineNo">048</span><a name="line.48"></a>
-<span class="sourceLineNo">049</span>import org.apache.commons.logging.Log;<a name="line.49"></a>
-<span class="sourceLineNo">050</span>import org.apache.commons.logging.LogFactory;<a name="line.50"></a>
-<span class="sourceLineNo">051</span>import org.apache.hadoop.conf.Configuration;<a name="line.51"></a>
-<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.CellScanner;<a name="line.52"></a>
-<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.DoNotRetryIOException;<a name="line.53"></a>
-<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.exceptions.ConnectionClosingException;<a name="line.54"></a>
-<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.io.ByteArrayOutputStream;<a name="line.55"></a>
-<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.ipc.HBaseRpcController.CancellationCallback;<a name="line.56"></a>
-<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.security.HBaseSaslRpcClient;<a name="line.57"></a>
-<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.security.SaslUtil;<a name="line.58"></a>
-<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.security.SaslUtil.QualityOfProtection;<a name="line.59"></a>
-<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.shaded.com.google.protobuf.Message;<a name="line.60"></a>
-<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.shaded.com.google.protobuf.Message.Builder;<a name="line.61"></a>
-<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.shaded.com.google.protobuf.RpcCallback;<a name="line.62"></a>
-<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.63"></a>
-<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos;<a name="line.64"></a>
-<span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.CellBlockMeta;<a name="line.65"></a>
-<span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.ConnectionHeader;<a name="line.66"></a>
-<span class="sourceLineNo">067</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.ExceptionResponse;<a name="line.67"></a>
-<span class="sourceLineNo">068</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.RequestHeader;<a name="line.68"></a>
-<span class="sourceLineNo">069</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.ResponseHeader;<a name="line.69"></a>
-<span class="sourceLineNo">070</span>import org.apache.hadoop.hbase.trace.TraceUtil;<a name="line.70"></a>
-<span class="sourceLineNo">071</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.71"></a>
-<span class="sourceLineNo">072</span>import org.apache.hadoop.hbase.util.ExceptionUtil;<a name="line.72"></a>
-<span class="sourceLineNo">073</span>import org.apache.hadoop.io.IOUtils;<a name="line.73"></a>
-<span class="sourceLineNo">074</span>import org.apache.hadoop.ipc.RemoteException;<a name="line.74"></a>
-<span class="sourceLineNo">075</span>import org.apache.hadoop.net.NetUtils;<a name="line.75"></a>
-<span class="sourceLineNo">076</span>import org.apache.hadoop.security.UserGroupInformation;<a name="line.76"></a>
-<span class="sourceLineNo">077</span>import org.apache.htrace.core.TraceScope;<a name="line.77"></a>
-<span class="sourceLineNo">078</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.78"></a>
+<span class="sourceLineNo">046</span>import javax.security.sasl.SaslException;<a name="line.46"></a>
+<span class="sourceLineNo">047</span>import org.apache.commons.logging.Log;<a name="line.47"></a>
+<span class="sourceLineNo">048</span>import org.apache.commons.logging.LogFactory;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.apache.hadoop.conf.Configuration;<a name="line.49"></a>
+<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.CellScanner;<a name="line.50"></a>
+<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.DoNotRetryIOException;<a name="line.51"></a>
+<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.exceptions.ConnectionClosingException;<a name="line.52"></a>
+<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.io.ByteArrayOutputStream;<a name="line.53"></a>
+<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.ipc.HBaseRpcController.CancellationCallback;<a name="line.54"></a>
+<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.security.HBaseSaslRpcClient;<a name="line.55"></a>
+<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.security.SaslUtil;<a name="line.56"></a>
+<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.security.SaslUtil.QualityOfProtection;<a name="line.57"></a>
+<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.trace.TraceUtil;<a name="line.58"></a>
+<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.59"></a>
+<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.util.ExceptionUtil;<a name="line.60"></a>
+<span class="sourceLineNo">061</span>import org.apache.hadoop.io.IOUtils;<a name="line.61"></a>
+<span class="sourceLineNo">062</span>import org.apache.hadoop.ipc.RemoteException;<a name="line.62"></a>
+<span class="sourceLineNo">063</span>import org.apache.hadoop.net.NetUtils;<a name="line.63"></a>
+<span class="sourceLineNo">064</span>import org.apache.hadoop.security.UserGroupInformation;<a name="line.64"></a>
+<span class="sourceLineNo">065</span>import org.apache.hadoop.util.StringUtils;<a name="line.65"></a>
+<span class="sourceLineNo">066</span>import org.apache.htrace.core.TraceScope;<a name="line.66"></a>
+<span class="sourceLineNo">067</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.67"></a>
+<span class="sourceLineNo">068</span><a name="line.68"></a>
+<span class="sourceLineNo">069</span>import org.apache.hadoop.hbase.shaded.com.google.protobuf.Message;<a name="line.69"></a>
+<span class="sourceLineNo">070</span>import org.apache.hadoop.hbase.shaded.com.google.protobuf.Message.Builder;<a name="line.70"></a>
+<span class="sourceLineNo">071</span>import org.apache.hadoop.hbase.shaded.com.google.protobuf.RpcCallback;<a name="line.71"></a>
+<span class="sourceLineNo">072</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.72"></a>
+<span class="sourceLineNo">073</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos;<a name="line.73"></a>
+<span class="sourceLineNo">074</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.CellBlockMeta;<a name="line.74"></a>
+<span class="sourceLineNo">075</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.ConnectionHeader;<a name="line.75"></a>
+<span class="sourceLineNo">076</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.ExceptionResponse;<a name="line.76"></a>
+<span class="sourceLineNo">077</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.RequestHeader;<a name="line.77"></a>
+<span class="sourceLineNo">078</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.ResponseHeader;<a name="line.78"></a>
<span class="sourceLineNo">079</span><a name="line.79"></a>
<span class="sourceLineNo">080</span>/**<a name="line.80"></a>
<span class="sourceLineNo">081</span> * Thread that reads responses and notifies callers. Each connection owns a socket connected to a<a name="line.81"></a>
@@ -271,533 +271,545 @@
<span class="sourceLineNo">263</span> /*<a name="line.263"></a>
<span class="sourceLineNo">264</span> * The max number of retries is 45, which amounts to 20s*45 = 15 minutes retries.<a name="line.264"></a>
<span class="sourceLineNo">265</span> */<a name="line.265"></a>
-<span class="sourceLineNo">266</span> handleConnectionFailure(timeoutFailures++, this.rpcClient.maxRetries, toe);<a name="line.266"></a>
-<span class="sourceLineNo">267</span> } catch (IOException ie) {<a name="line.267"></a>
-<span class="sourceLineNo">268</span> handleConnectionFailure(ioFailures++, this.rpcClient.maxRetries, ie);<a name="line.268"></a>
-<span class="sourceLineNo">269</span> }<a name="line.269"></a>
-<span class="sourceLineNo">270</span> }<a name="line.270"></a>
-<span class="sourceLineNo">271</span> }<a name="line.271"></a>
-<span class="sourceLineNo">272</span><a name="line.272"></a>
-<span class="sourceLineNo">273</span> /**<a name="line.273"></a>
-<span class="sourceLineNo">274</span> * Handle connection failures If the current number of retries is equal to the max number of<a name="line.274"></a>
-<span class="sourceLineNo">275</span> * retries, stop retrying and throw the exception; Otherwise backoff N seconds and try connecting<a name="line.275"></a>
-<span class="sourceLineNo">276</span> * again. This Method is only called from inside setupIOstreams(), which is synchronized. Hence<a name="line.276"></a>
-<span class="sourceLineNo">277</span> * the sleep is synchronized; the locks will be retained.<a name="line.277"></a>
-<span class="sourceLineNo">278</span> * @param curRetries current number of retries<a name="line.278"></a>
-<span class="sourceLineNo">279</span> * @param maxRetries max number of retries allowed<a name="line.279"></a>
-<span class="sourceLineNo">280</span> * @param ioe failure reason<a name="line.280"></a>
-<span class="sourceLineNo">281</span> * @throws IOException if max number of retries is reached<a name="line.281"></a>
-<span class="sourceLineNo">282</span> */<a name="line.282"></a>
-<span class="sourceLineNo">283</span> private void handleConnectionFailure(int curRetries, int maxRetries, IOException ioe)<a name="line.283"></a>
-<span class="sourceLineNo">284</span> throws IOException {<a name="line.284"></a>
-<span class="sourceLineNo">285</span> closeSocket();<a name="line.285"></a>
-<span class="sourceLineNo">286</span><a name="line.286"></a>
-<span class="sourceLineNo">287</span> // throw the exception if the maximum number of retries is reached<a name="line.287"></a>
-<span class="sourceLineNo">288</span> if (curRetries >= maxRetries || ExceptionUtil.isInterrupt(ioe)) {<a name="line.288"></a>
-<span class="sourceLineNo">289</span> throw ioe;<a name="line.289"></a>
-<span class="sourceLineNo">290</span> }<a name="line.290"></a>
-<span class="sourceLineNo">291</span><a name="line.291"></a>
-<span class="sourceLineNo">292</span> // otherwise back off and retry<a name="line.292"></a>
-<span class="sourceLineNo">293</span> try {<a name="line.293"></a>
-<span class="sourceLineNo">294</span> Thread.sleep(this.rpcClient.failureSleep);<a name="line.294"></a>
-<span class="sourceLineNo">295</span> } catch (InterruptedException ie) {<a name="line.295"></a>
-<span class="sourceLineNo">296</span> ExceptionUtil.rethrowIfInterrupt(ie);<a name="line.296"></a>
-<span class="sourceLineNo">297</span> }<a name="line.297"></a>
-<span class="sourceLineNo">298</span><a name="line.298"></a>
-<span class="sourceLineNo">299</span> LOG.info("Retrying connect to server: " + remoteId.getAddress() + " after sleeping "<a name="line.299"></a>
-<span class="sourceLineNo">300</span> + this.rpcClient.failureSleep + "ms. Already tried " + curRetries + " time(s).");<a name="line.300"></a>
-<span class="sourceLineNo">301</span> }<a name="line.301"></a>
-<span class="sourceLineNo">302</span><a name="line.302"></a>
-<span class="sourceLineNo">303</span> /*<a name="line.303"></a>
-<span class="sourceLineNo">304</span> * wait till someone signals us to start reading RPC response or it is idle too long, it is marked<a name="line.304"></a>
-<span class="sourceLineNo">305</span> * as to be closed, or the client is marked as not running.<a name="line.305"></a>
-<span class="sourceLineNo">306</span> * @return true if it is time to read a response; false otherwise.<a name="line.306"></a>
-<span class="sourceLineNo">307</span> */<a name="line.307"></a>
-<span class="sourceLineNo">308</span> private synchronized boolean waitForWork() {<a name="line.308"></a>
-<span class="sourceLineNo">309</span> // beware of the concurrent access to the calls list: we can add calls, but as well<a name="line.309"></a>
-<span class="sourceLineNo">310</span> // remove them.<a name="line.310"></a>
-<span class="sourceLineNo">311</span> long waitUntil = EnvironmentEdgeManager.currentTime() + this.rpcClient.minIdleTimeBeforeClose;<a name="line.311"></a>
-<span class="sourceLineNo">312</span> for (;;) {<a name="line.312"></a>
-<span class="sourceLineNo">313</span> if (thread == null) {<a name="line.313"></a>
-<span class="sourceLineNo">314</span> return false;<a name="line.314"></a>
-<span class="sourceLineNo">315</span> }<a name="line.315"></a>
-<span class="sourceLineNo">316</span> if (!calls.isEmpty()) {<a name="line.316"></a>
-<span class="sourceLineNo">317</span> return true;<a name="line.317"></a>
-<span class="sourceLineNo">318</span> }<a name="line.318"></a>
-<span class="sourceLineNo">319</span> if (EnvironmentEdgeManager.currentTime() >= waitUntil) {<a name="line.319"></a>
-<span class="sourceLineNo">320</span> closeConn(<a name="line.320"></a>
-<span class="sourceLineNo">321</span> new IOException("idle connection closed with " + calls.size() + " pending request(s)"));<a name="line.321"></a>
-<span class="sourceLineNo">322</span> return false;<a name="line.322"></a>
-<span class="sourceLineNo">323</span> }<a name="line.323"></a>
-<span class="sourceLineNo">324</span> try {<a name="line.324"></a>
-<span class="sourceLineNo">325</span> wait(Math.min(this.rpcClient.minIdleTimeBeforeClose, 1000));<a name="line.325"></a>
-<span class="sourceLineNo">326</span> } catch (InterruptedException e) {<a name="line.326"></a>
-<span class="sourceLineNo">327</span> }<a name="line.327"></a>
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-<span class="sourceLineNo">331</span> @Override<a name="line.331"></a>
-<span class="sourceLineNo">332</span> public void run() {<a name="line.332"></a>
-<span class="sourceLineNo">333</span> if (LOG.isTraceEnabled()) {<a name="line.333"></a>
-<span class="sourceLineNo">334</span> LOG.trace(threadName + ": starting, connections " + this.rpcClient.connections.size());<a name="line.334"></a>
-<span class="sourceLineNo">335</span> }<a name="line.335"></a>
-<span class="sourceLineNo">336</span> while (waitForWork()) {<a name="line.336"></a>
-<span class="sourceLineNo">337</span> readResponse();<a name="line.337"></a>
-<span class="sourceLineNo">338</span> }<a name="line.338"></a>
-<span class="sourceLineNo">339</span> if (LOG.isTraceEnabled()) {<a name="line.339"></a>
-<span class="sourceLineNo">340</span> LOG.trace(threadName + ": stopped, connections " + this.rpcClient.connections.size());<a name="line.340"></a>
-<span class="sourceLineNo">341</span> }<a name="line.341"></a>
-<span class="sourceLineNo">342</span> }<a name="line.342"></a>
-<span class="sourceLineNo">343</span><a name="line.343"></a>
-<span class="sourceLineNo">344</span> private void disposeSasl() {<a name="line.344"></a>
-<span class="sourceLineNo">345</span> if (saslRpcClient != null) {<a name="line.345"></a>
-<span class="sourceLineNo">346</span> saslRpcClient.dispose();<a name="line.346"></a>
-<span class="sourceLineNo">347</span> saslRpcClient = null;<a name="line.347"></a>
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-<span class="sourceLineNo">349</span> }<a name="line.349"></a>
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-<span class="sourceLineNo">351</span> private boolean setupSaslConnection(final InputStream in2, final OutputStream out2)<a name="line.351"></a>
-<span class="sourceLineNo">352</span> throws IOException {<a name="line.352"></a>
-<span class="sourceLineNo">353</span> saslRpcClient = new HBaseSaslRpcClient(authMethod, token, serverPrincipal,<a name="line.353"></a>
-<span class="sourceLineNo">354</span> this.rpcClient.fallbackAllowed, this.rpcClient.conf.get("hbase.rpc.protection",<a name="line.354"></a>
-<span class="sourceLineNo">355</span> QualityOfProtection.AUTHENTICATION.name().toLowerCase(Locale.ROOT)),<a name="line.355"></a>
-<span class="sourceLineNo">356</span> this.rpcClient.conf.getBoolean(CRYPTO_AES_ENABLED_KEY, CRYPTO_AES_ENABLED_DEFAULT));<a name="line.356"></a>
-<span class="sourceLineNo">357</span> return saslRpcClient.saslConnect(in2, out2);<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> * If multiple clients with the same principal try to connect to the same server at the same time,<a name="line.361"></a>
-<span class="sourceLineNo">362</span> * the server assumes a replay attack is in progress. This is a feature of kerberos. In order to<a name="line.362"></a>
-<span class="sourceLineNo">363</span> * work around this, what is done is that the client backs off randomly and tries to initiate the<a name="line.363"></a>
-<span class="sourceLineNo">364</span> * connection again. The other problem is to do with ticket expiry. To handle that, a relogin is<a name="line.364"></a>
-<span class="sourceLineNo">365</span> * attempted.<a name="line.365"></a>
-<span class="sourceLineNo">366</span> * <p><a name="line.366"></a>
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-<span class="sourceLineNo">368</span> * user doesn't have valid credentials, we don't need to retry (from cache or ticket). In such<a name="line.368"></a>
-<span class="sourceLineNo">369</span> * cases, it is prudent to throw a runtime exception when we receive a SaslException from the<a name="line.369"></a>
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-<span class="sourceLineNo">371</span> * HCM or HBaseAdmin).<a name="line.371"></a>
-<span class="sourceLineNo">372</span> * </p><a name="line.372"></a>
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-<span class="sourceLineNo">375</span> final Exception ex, final UserGroupInformation user)<a name="line.375"></a>
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-<span class="sourceLineNo">377</span> closeSocket();<a name="line.377"></a>
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-<span class="sourceLineNo">380</span> public Object run() throws IOException, InterruptedException {<a name="line.380"></a>
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-<span class="sourceLineNo">382</span> if (currRetries < maxRetries) {<a name="line.382"></a>
-<span class="sourceLineNo">383</span> if (LOG.isDebugEnabled()) {<a name="line.383"></a>
-<span class="sourceLineNo">384</span> LOG.debug("Exception encountered while connecting to " + "the server : " + ex);<a name="line.384"></a>
-<span class="sourceLineNo">385</span> }<a name="line.385"></a>
-<span class="sourceLineNo">386</span> // try re-login<a name="line.386"></a>
-<span class="sourceLineNo">387</span> relogin();<a name="line.387"></a>
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-<span class="sourceLineNo">390</span> // we are sleeping with the Connection lock held but since this<a name="line.390"></a>
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-<span class="sourceLineNo">392</span> // in question, it is okay<a name="line.392"></a>
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-<span class="sourceLineNo">397</span> + UserGroupInformation.getLoginUser().getUserName() + " to " + serverPrincipal;<a name="line.397"></a>
-<span class="sourceLineNo">398</span> LOG.warn(msg, ex);<a name="line.398"></a>
-<span class="sourceLineNo">399</span> throw (IOException) new IOException(msg).initCause(ex);<a name="line.399"></a>
-<span class="sourceLineNo">400</span> }<a name="line.400"></a>
-<span class="sourceLineNo">401</span> } else {<a name="line.401"></a>
-<span class="sourceLineNo">402</span> LOG.warn("Exception encountered while connecting to " + "the server : " + ex);<a name="line.402"></a>
-<span class="sourceLineNo">403</span> }<a name="line.403"></a>
-<span class="sourceLineNo">404</span> if (ex instanceof RemoteException) {<a name="line.404"></a>
-<span class="sourceLineNo">405</span> throw (RemoteException) ex;<a name="line.405"></a>
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