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Posted to dev@qpid.apache.org by "Rob Godfrey (JIRA)" <ji...@apache.org> on 2015/05/08 18:21:59 UTC
[jira] [Commented] (QPID-6535) java.lang.OutOfMemoryError: unable
to create new native thread
[ https://issues.apache.org/jira/browse/QPID-6535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14534816#comment-14534816 ]
Rob Godfrey commented on QPID-6535:
-----------------------------------
Hi Mark,
I'll try to look at this a bit over the weekend... note though for the next release of the broker we'll have completely reworked the threading / IO model so there's a fixed pool of threads rather than 2 per connection... so it may be that whatever the error is here it has already been fixed... and if it hasn't then the effect will anyway be much reduced.
> java.lang.OutOfMemoryError: unable to create new native thread
> --------------------------------------------------------------
>
> Key: QPID-6535
> URL: https://issues.apache.org/jira/browse/QPID-6535
> Project: Qpid
> Issue Type: Bug
> Components: Java Broker
> Affects Versions: 0.32
> Reporter: Mark Soderquist
> Attachments: threaddump-qpid-stage-1431091571116.zip
>
>
> Getting an OutOfMemoryError after running for several days. Attached is a thread dump showing hundreds of orphaned IoSender threads. At any given time there are fewer than 50 clients but many of them are not "well behaved". Here is the stack trace for the error but I don't really believe the LDAP calls are really the problem:
> 2015-05-08 03:01:19,000 ERROR [IoReceiver - /10.96.250.6:59923] (server.Main) - Uncaught exception, continuing.
> java.lang.OutOfMemoryError: unable to create new native thread
> at java.lang.Thread.start0(Native Method)
> at java.lang.Thread.start(Thread.java:714)
> at com.sun.jndi.ldap.Connection.<init>(Connection.java:234)
> at com.sun.jndi.ldap.LdapClient.<init>(LdapClient.java:136)
> at com.sun.jndi.ldap.LdapClient.getInstance(LdapClient.java:1608)
> at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2698)
> at com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:316)
> at com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(LdapCtxFactory.java:193)
> at com.sun.jndi.ldap.LdapCtxFactory.getUsingURLs(LdapCtxFactory.java:211)
> at com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxInstance(LdapCtxFactory.java:154)
> at com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.java:84)
> at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:684)
> at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:307)
> at javax.naming.InitialContext.init(InitialContext.java:242)
> at javax.naming.InitialContext.<init>(InitialContext.java:216)
> at javax.naming.directory.InitialDirContext.<init>(InitialDirContext.java:101)
> at org.apache.qpid.server.security.auth.manager.SimpleLDAPAuthenticationManagerImpl.createInitialDirContext(SimpleLDAPAuthenticationManagerImpl.java:347)
> at org.apache.qpid.server.security.auth.manager.SimpleLDAPAuthenticationManagerImpl.doLDAPNameAuthentication(SimpleLDAPAuthenticationManagerImpl.java:298)
> at org.apache.qpid.server.security.auth.manager.SimpleLDAPAuthenticationManagerImpl.access$300(SimpleLDAPAuthenticationManagerImpl.java:72)
> at org.apache.qpid.server.security.auth.manager.SimpleLDAPAuthenticationManagerImpl$SimpleLDAPPlainCallbackHandler.handle(SimpleLDAPAuthenticationManagerImpl.java:470)
> at org.apache.qpid.server.security.auth.sasl.plain.PlainSaslServer.evaluateResponse(PlainSaslServer.java:83)
> at org.apache.qpid.amqp_1_0.transport.ConnectionEndpoint.receiveSaslInit(ConnectionEndpoint.java:908)
> at org.apache.qpid.amqp_1_0.type.security.SaslInit.invoke(SaslInit.java:112)
> at org.apache.qpid.amqp_1_0.transport.ConnectionEndpoint.receive(ConnectionEndpoint.java:812)
> at org.apache.qpid.amqp_1_0.framing.SASLFrameHandler.parse(SASLFrameHandler.java:240)
> at org.apache.qpid.server.protocol.v1_0.ProtocolEngine_1_0_0_SASL$4.run(ProtocolEngine_1_0_0_SASL.java:384)
> at org.apache.qpid.server.protocol.v1_0.ProtocolEngine_1_0_0_SASL$4.run(ProtocolEngine_1_0_0_SASL.java:380)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:356)
> at org.apache.qpid.server.protocol.v1_0.ProtocolEngine_1_0_0_SASL.received(ProtocolEngine_1_0_0_SASL.java:379)
> at org.apache.qpid.server.protocol.v1_0.ProtocolEngine_1_0_0_SASL.received(ProtocolEngine_1_0_0_SASL.java:66)
> at org.apache.qpid.server.protocol.MultiVersionProtocolEngine.received(MultiVersionProtocolEngine.java:153)
> at org.apache.qpid.server.protocol.MultiVersionProtocolEngine.received(MultiVersionProtocolEngine.java:51)
> at org.apache.qpid.transport.network.io.IoReceiver.run(IoReceiver.java:161)
> at java.lang.Thread.run(Thread.java:745)
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