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Re: SSL bisocket socketWrite0() hangs, while holding Messaging Post Office lock (on a network failure)
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created by <a href="https://community.jboss.org/people/toddler">Todd Sandor</a> in <i>JBoss Remoting</i> - <a href="https://community.jboss.org/message/799630#799630">View the full discussion</a>
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<div class="jive-rendered-content"><p>I found a workaround to this SSL defect which is to set the socket linger option in OutputTimerTask.run()</p><p>before the close() is performed. </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I've never contributed to the community source, but below are the</p><p>diffs, hopefully someone can get this into the community version to tell me how I go about contributing</p><p>this change into the community version.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>File to change: (e.g. for tag 2.5.4.SP3)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>org.jboss.remoting.transport.socket.ClientSocketWrapper.java</p><p>org.jboss.remoting.transport.socket.TimedOutputStream.java</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>diff ClientSocketWrapper.java ../ClientSocketWrapper.java </p><p>223c223,224</p><p><          os = new TimedOutputStream(os, writeTimeout);</p><p>---</p><p>>           Socket mySkt = super.getSocket();</p><p>>           os = new TimedOutputStream(os, writeTimeout, mySkt);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>diff TimedOutputStream.java ../TimedOutputStream.java </p><p>26a27</p><p>> import java.net.Socket;</p><p>47a49,60</p><p>>    private Socket mySkt;</p><p>> </p><p>>     public Socket getMySkt() {</p><p>>         return mySkt;</p><p>>     }</p><p>> </p><p>>     public TimedOutputStream(OutputStream os, int outputTimeout, Socket pmySkt)</p><p>>     {</p><p>>         this.os = os;</p><p>>         this.outputTimeout = outputTimeout;</p><p>>         this.mySkt = pmySkt;</p><p>>     }</p><p>134c147</p><p><       </p><p>---</p><p>> </p><p>142,151c155,192</p><p><          try</p><p><          {</p><p><             log.debug(this + " closing: " + tos);</p><p><             tos.close();</p><p><             tos = null;</p><p><          }</p><p><          catch (IOException e)</p><p><          {</p><p><             log.debug("unable to close " + tos);</p><p><          }</p><p>---</p><p>>           try</p><p>>           {</p><p>> </p><p>>               Socket mySocket = tos.getMySkt();</p><p>>               if (mySocket != null)</p><p>>               {</p><p>>                   // set the linger on with duration 0, results RST being sent</p><p>>                   // and socket send and receive buffers being discarded (does not</p><p>>                   // wait of the existing write() to complete].  There is no use in</p><p>>                   // setting the soLingerDuration longer then 0 (thus waiting for the write to</p><p>>                   // complete), since we've already waited "writeTimeout" seconds on this write.</p><p>>                   boolean on = true;</p><p>>                   int soLingerDuration = 0;</p><p>>                   log.debug(this + " socketWrite TIMEOUT: set soLinger(ON,0): " + tos);</p><p>>                   mySocket.setSoLinger(on, soLingerDuration);</p><p>> </p><p>>               }</p><p>>           }</p><p>>           catch (IOException e)</p><p>>           {</p><p>>               log.debug(" socketWrite TIMEOUT: Attempting to set linger on socket stream [" + tos +</p><p>>                       "], Exception [" + e.toString() + "]");</p><p>>           }</p><p>>           finally</p><p>>           {</p><p>>               log.debug(this + " socketWrite TIMEOUT: close(): " + tos);</p><p>>               try</p><p>>               {</p><p>>                   tos.close();</p><p>>               }</p><p>>               catch (Exception e)</p><p>>               {</p><p>>                   // ignore - log log error</p><p>>                   log.error("Failed to close() socket stream Exception: ", e);</p><p>>               }</p><p>>               log.debug(this + " socketWrite TIMEOUT: close() completed.");</p><p>>               tos = null;</p><p>>           }</p><p>153c194</p><p><       </p><p>---</p><p>> </p></div>
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