July 2010 - jboss-remoting-issues

[JBoss JIRA] Created: (JBREM-1238) Need invocation timeouts in synchronized blocks in MicroRemoteClientInvoker that create and terminate leases

by Ron Sigal (JIRA)

Need invocation timeouts in synchronized blocks in MicroRemoteClientInvoker that create and terminate leases ------------------------------------------------------------------------------------------------------------- Key: JBREM-1238 URL: https://jira.jboss.org/browse/JBREM-1238 Project: JBoss Remoting Issue Type: Bug Security Level: Public (Everyone can see) Affects Versions: 2.5.3.SP1 Reporter: Ron Sigal Assignee: Ron Sigal Fix For: 2.5.2.SP2 (Flounder) org.jboss.remoting.MicroRemoteClientInvoker.establishLease() and MicroRemoteClientInvoker.terminateLease() do network invocations inside synchronized blocks, and, if the invocations get hung up, then it becomes impossible to create new connections with leasing enabled. Setting the 'timeout" parameter appropriately would work around the problem, but some users, notably JBossMessaging, set "timeout" to 0. A speclal case timeout parameter should be used, along with the per invocation timeout facility, to prevent MicroRemoteClientInvoker from getting stuck in establishLease() or terminateLease(). -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 4 months

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[JBoss JIRA] Created: (JBREM-1074) Config Guide should clarify the HTTP transport vs Servlet

by Andrew Oliver (JIRA)

Config Guide should clarify the HTTP transport vs Servlet --------------------------------------------------------- Key: JBREM-1074 URL: https://jira.jboss.org/jira/browse/JBREM-1074 Project: JBoss Remoting Issue Type: Bug Security Level: Public (Everyone can see) Reporter: Andrew Oliver http://docs.jboss.org/jbossas/unified_invoker/UnifiedInvoker_guide.html describes changing to use HTTP as a transport. Meaning JBoss remoting launches its own HTTP server. This is probably a pretty esoteric configuration and most people are probably looking for this: http://www.jboss.org/community/docs/DOC-9632 instead. The guide should clarify WHAT that is and where to find what you're probably REALLY looking for. (you probably don't want to run on some weird port if you're using HTTP and most installs probably run WITH tomcat which means you need to run through TC or have a totally separate IP which is pretty hard to do in most environments) -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 4 months

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[JBoss JIRA] Created: (JBREM-1144) Extend connection identity to server side

by Ron Sigal (JIRA)

Extend connection identity to server side ----------------------------------------- Key: JBREM-1144 URL: https://jira.jboss.org/jira/browse/JBREM-1144 Project: JBoss Remoting Issue Type: Feature Request Security Level: Public (Everyone can see) Affects Versions: 2.2.3, 2.5.1 (Flounder) Reporter: Ron Sigal Assignee: Ron Sigal Fix For: 2.5.2 (Flounder), 2.2.3.SP1 In JBREM-1128 "Introduce connection identity concept" and JBREM-1132 "CLONE [JBREM-1128] - Introduce connection identity concept", the server was equipped to recognized when a client had been replaced by another client. In other words, clients were assigned an identity. This concept should be extended to the server side, so that ConnectionValidator can detect that a server has been replaced. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 4 months

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[JBoss JIRA] Created: (JBREM-1226) Sockets created by bisocket secondary ServerSocket should be configured properly

by Ron Sigal (JIRA)

Sockets created by bisocket secondary ServerSocket should be configured properly -------------------------------------------------------------------------------- Key: JBREM-1226 URL: https://jira.jboss.org/browse/JBREM-1226 Project: JBoss Remoting Issue Type: Bug Security Level: Public (Everyone can see) Affects Versions: 2.2.3.SP2, 2.5.2.SP3 (Flounder) Reporter: Ron Sigal Assignee: Ron Sigal Fix For: 2.2.3.SP3, 2.5.2.SP4 (Flounder) Sockets created by org.jboss.remoting.transport.socket.SocketServerInvoker are configured by protected void configureSocket(Socket s) throws SocketException { s.setReuseAddress(getReuseAddress()); if (keepAliveSet) s.setKeepAlive(keepAlive); if (oOBInlineSet) s.setOOBInline(oOBInline); if (receiveBufferSize > -1) s.setReceiveBufferSize(receiveBufferSize); if (sendBufferSize > -1) s.setSendBufferSize(sendBufferSize); if (soLingerSet && soLingerDuration > 0) s.setSoLinger(soLinger, soLingerDuration); if (trafficClass > -1) s.setTrafficClass(trafficClass); } but configureSocket() is not called for sockets created by org.jboss.remoting.transport.bisocket.BisocketServerInvoker. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 5 months

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[JBoss JIRA] Created: (JBREM-1227) Fix deadlock between MicroRemoteClientInvoker and RemotingClassLoader

by Ron Sigal (JIRA)

Fix deadlock between MicroRemoteClientInvoker and RemotingClassLoader --------------------------------------------------------------------- Key: JBREM-1227 URL: https://jira.jboss.org/browse/JBREM-1227 Project: JBoss Remoting Issue Type: Bug Security Level: Public (Everyone can see) Affects Versions: 2.5.2.SP3 (Flounder) Reporter: Ron Sigal Assignee: Ron Sigal Fix For: 2.5.2.SP4 (Flounder) The following deadlock can occur: 1. Thread T1 reads a response with an object whose class is not available locally, so it uses its org.jboss.remoting.loading.RemotingClassLoader to try to download the class a. java.lang.ClassLoader.loadClassInternal() acquires a lock on itself (an instance of RemotingClassLoader) b. RemotingClassLoader uses its copy of an org.jboss.remoting.loading.ClassByteClassLoader to try to download the class c. ClassByteClassLoader calls org.jboss.remoting.MicroRemoteClientInvoker.invoke(), which tries to synchronize on MicroRemoteClientInvoker.class as it sets up an UnMarshaller with a ClassLoader 2. Thread T2 attempts to make an invocation a. MicroRemoteClientInvoker.invoke() acquires a lock on MicroRemoteClientInvoker.class b. MicroRemoteClientInvoker.invoke() calls the synchronized method RemotingClassLoader.setUserClassLoader(), which tries to acquire a lock on the RemotingClassLoader Deadlock. The only two synchronized methods in RemotingClassLoader are setUserClassLoader() and unsetUserClassLoader(), which are both called from MicroRemoteClientInvoker.invoke(). The call to setUserClassLoader() is already done while the MicroRemoteClientInvoker.class lock is held. If the call to unsetUserClassLoader() is made with the same lock, then setUserClassLoader() and unsetClassLoader() don't have to be synchronized. That will eliminate the deadlock because step 2b is removed. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 5 months

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[JBoss JIRA] Created: (JBREM-1228) Augment Remoting 3 test suite

by Ron Sigal (JIRA)

Augment Remoting 3 test suite ----------------------------- Key: JBREM-1228 URL: https://jira.jboss.org/browse/JBREM-1228 Project: JBoss Remoting Issue Type: Task Security Level: Public (Everyone can see) Reporter: Ron Sigal Assignee: Ron Sigal Fix For: 3.1.0.Beta3 -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 6 months

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[JBoss JIRA] Created: (JBREM-1233) Release 2.5.3

by Ron Sigal (JIRA)

Release 2.5.3 ------------- Key: JBREM-1233 URL: https://jira.jboss.org/browse/JBREM-1233 Project: JBoss Remoting Issue Type: Release Security Level: Public (Everyone can see) Reporter: Ron Sigal Assignee: Ron Sigal Fix For: 2.5.3 (Flounder) -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 6 months

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[JBoss JIRA] Created: (JBREM-1237) Release 2.5.3.SP1

by Ron Sigal (JIRA)

Release 2.5.3.SP1 ----------------- Key: JBREM-1237 URL: https://jira.jboss.org/browse/JBREM-1237 Project: JBoss Remoting Issue Type: Release Security Level: Public (Everyone can see) Reporter: Ron Sigal -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 9 months

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[JBoss JIRA] Created: (JBREM-1235) Avoid excessive calls to InetAddress.getLocalHost() [Clone of JBREM-1234]

by Ron Sigal (JIRA)

Avoid excessive calls to InetAddress.getLocalHost() [Clone of JBREM-1234] ------------------------------------------------------------------------- Key: JBREM-1235 URL: https://jira.jboss.org/browse/JBREM-1235 Project: JBoss Remoting Issue Type: Quality Risk Security Level: Public (Everyone can see) Affects Versions: 2.5.3 (Flounder) Reporter: Ron Sigal Assignee: Ron Sigal Fix For: 2.5.3.SP1 >From JBPAPP-4617 "Possible performance issue in Remoting": JMS remote connections that are used locally result in a lot of calls to InetAddress.getLocalHost() which for some reason is slow. Why not: private static final InetAddress LOCAL_HOST; static { try { LOCAL_HOST = InetAddress.getLocalHost(); } catch (UnknownHostException e) { throw new ExceptionInInitializerError(e); } } private static InetAddress getLocalHost() throws UnknownHostException { return LOCAL_HOST; } Which is roughly 1000x faster. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 10 months

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[JBoss JIRA] Created: (JBREM-1230) Client hangs when hitting MaxPoolSize with idleTimeout

by Takayoshi Kimura (JIRA)

Client hangs when hitting MaxPoolSize with idleTimeout ------------------------------------------------------ Key: JBREM-1230 URL: https://jira.jboss.org/browse/JBREM-1230 Project: JBoss Remoting Issue Type: Bug Security Level: Public (Everyone can see) Affects Versions: 2.2.3.SP1, 2.2.2.SP9 Reporter: Takayoshi Kimura 1. In SocketServerInvoker.processInvocation(), clientpool.wait() is called when hitting MaxPoolSize 2. SocketServerInvoker$IdleTimerTask calls ServerThread.shutdown() and remove it from clientpool when it's timed out in idle state 3. ServerThread.shutdown() doesn't call clientpool.notify(), so #1 doesn't resume although there is free slot available -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 10 months

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jboss-remoting-issues July 2010