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sendRequest(final Call call, HBaseRpcController hrc) throws IOException {<a 
name="line.300"></a>
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name="line.301"></a>
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request because relogin is in progress.");<a name="line.302"></a>
+<span class="sourceLineNo">303</span>    }<a name="line.303"></a>
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RpcCallback&lt;Object&gt;() {<a name="line.304"></a>
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+<span class="sourceLineNo">306</span>      @Override<a name="line.306"></a>
+<span class="sourceLineNo">307</span>      public void run(Object parameter) 
{<a name="line.307"></a>
+<span class="sourceLineNo">308</span>        setCancelled(call);<a 
name="line.308"></a>
+<span class="sourceLineNo">309</span>        synchronized (this) {<a 
name="line.309"></a>
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channel.pipeline().fireUserEventTriggered(new CallEvent(CANCELLED, call));<a 
name="line.311"></a>
+<span class="sourceLineNo">312</span>          }<a name="line.312"></a>
+<span class="sourceLineNo">313</span>        }<a name="line.313"></a>
+<span class="sourceLineNo">314</span>      }<a name="line.314"></a>
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+<span class="sourceLineNo">317</span>      @Override<a name="line.317"></a>
+<span class="sourceLineNo">318</span>      public void run(boolean cancelled) 
throws IOException {<a name="line.318"></a>
+<span class="sourceLineNo">319</span>        if (cancelled) {<a 
name="line.319"></a>
+<span class="sourceLineNo">320</span>          setCancelled(call);<a 
name="line.320"></a>
+<span class="sourceLineNo">321</span>        } else {<a name="line.321"></a>
+<span class="sourceLineNo">322</span>          if (channel == null) {<a 
name="line.322"></a>
+<span class="sourceLineNo">323</span>            connect();<a 
name="line.323"></a>
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+<span class="sourceLineNo">325</span>          scheduleTimeoutTask(call);<a 
name="line.325"></a>
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name="line.326"></a>
+<span class="sourceLineNo">327</span>          // We must move the whole 
writeAndFlush call inside event loop otherwise there will be a<a 
name="line.327"></a>
+<span class="sourceLineNo">328</span>          // race condition.<a 
name="line.328"></a>
+<span class="sourceLineNo">329</span>          // In netty's 
DefaultChannelPipeline, it will find the first outbound handler in the<a 
name="line.329"></a>
+<span class="sourceLineNo">330</span>          // current thread and then 
schedule a task to event loop which will start the process from<a 
name="line.330"></a>
+<span class="sourceLineNo">331</span>          // that outbound handler. It is 
possible that the first handler is<a name="line.331"></a>
+<span class="sourceLineNo">332</span>          // BufferCallBeforeInitHandler 
when we call writeAndFlush here, but the connection is set<a 
name="line.332"></a>
+<span class="sourceLineNo">333</span>          // up at the same time so in 
the event loop thread we remove the<a name="line.333"></a>
+<span class="sourceLineNo">334</span>          // BufferCallBeforeInitHandler, 
and then our writeAndFlush task comes, still calls the<a name="line.334"></a>
+<span class="sourceLineNo">335</span>          // write method of 
BufferCallBeforeInitHandler.<a name="line.335"></a>
+<span class="sourceLineNo">336</span>          // This may be considered as a 
bug of netty, but anyway there is a work around so let's<a name="line.336"></a>
+<span class="sourceLineNo">337</span>          // fix it by ourselves first.<a 
name="line.337"></a>
+<span class="sourceLineNo">338</span>          if 
(ch.eventLoop().inEventLoop()) {<a name="line.338"></a>
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+<span class="sourceLineNo">340</span>          } else {<a name="line.340"></a>
+<span class="sourceLineNo">341</span>            ch.eventLoop().execute(new 
Runnable() {<a name="line.341"></a>
+<span class="sourceLineNo">342</span><a name="line.342"></a>
+<span class="sourceLineNo">343</span>              @Override<a 
name="line.343"></a>
+<span class="sourceLineNo">344</span>              public void run() {<a 
name="line.344"></a>
+<span class="sourceLineNo">345</span>                write(ch, call);<a 
name="line.345"></a>
+<span class="sourceLineNo">346</span>              }<a name="line.346"></a>
+<span class="sourceLineNo">347</span>            });<a name="line.347"></a>
+<span class="sourceLineNo">348</span>          }<a name="line.348"></a>
+<span class="sourceLineNo">349</span>        }<a name="line.349"></a>
+<span class="sourceLineNo">350</span>      }<a name="line.350"></a>
+<span class="sourceLineNo">351</span>    });<a name="line.351"></a>
+<span class="sourceLineNo">352</span>  }<a name="line.352"></a>
+<span class="sourceLineNo">353</span>}<a name="line.353"></a>
 
 
 

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