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From "Alex Karasulu (JIRA)" <j...@apache.org>
Subject [jira] Closed: (DIRSERVER-624) Concurrency problem when doing load tests
Date Mon, 28 Aug 2006 00:53:24 GMT
     [ http://issues.apache.org/jira/browse/DIRSERVER-624?page=all ]

Alex Karasulu closed DIRSERVER-624.
-----------------------------------

    Fix Version/s: 1.1.0
                   1.0-RC4
       Resolution: Fixed

Fixed here for 1.0 branch:

    http://svn.apache.org/viewvc?view=rev&revision=437489

and for 1.1 branch here:

    http://svn.apache.org/viewvc?view=rev&revision=437490



> Concurrency problem when doing load tests
> -----------------------------------------
>
>                 Key: DIRSERVER-624
>                 URL: http://issues.apache.org/jira/browse/DIRSERVER-624
>             Project: Directory ApacheDS
>          Issue Type: Bug
>    Affects Versions: 1.0-RC3
>            Reporter: Emmanuel Lecharny
>         Assigned To: Alex Karasulu
>            Priority: Blocker
>             Fix For: 1.1.0, 1.0-RC4
>
>
> When trying to do some load tests (adding 100K users, deleting them, adding them again
...) on a bi-processor computer, we get some concurrency access errors on the secong add/del
run :
>            _                     _          ____  ____           / \   _ __   __ _  ___|
|__   ___|  _ \/ ___|
>          / _ \ | '_ \ / _` |/ __| '_ \ / _ \ | | \___ \         / ___ \| |_) | (_| |
(__| | | |  __/ |_| |___) |
>        /_/   \_\ .__/ \__,_|\___|_| |_|\___|____/|____/                |_|
>  [08:00:07] WARN [org.apache.directory.server.core.DefaultDirectoryService] - You didn't
change the admin password of directory service instance 'default'.  Please update the admin
password as soon as possible to prevent a possible security breach.
> [10:33:24] WARN [org.apache.directory.server.ldap.LdapProtocolProvider$LdapProtocolHandler]
- [/193.140.236.75:42091] Unexpected exception forcing session to close: sending disconnect
notice to client. java.util.ConcurrentModificationException
>         at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1031)      
  at java.util.TreeMap$KeyIterator.next(TreeMap.java:1058)
>         at org.apache.directory.server.core.partition.impl.btree.TupleEnumeration.next(TupleEnumeration.java:66)
>         at org.apache.directory.server.core.partition.impl.btree.IndexEnumeration.prefetch(IndexEnumeration.java:151)
        
>         at org.apache.directory.server.core.partition.impl.btree.IndexEnumeration.next(IndexEnumeration.java:94)
>         at org.apache.directory.server.core.partition.impl.btree.IndexAssertionEnumeration.prefetch(IndexAssertionEnumeration.java:155)
>         at org.apache.directory.server.core.partition.impl.btree.IndexAssertionEnumeration.next(IndexAssertionEnumeration.java:117)
>         at org.apache.directory.server.core.partition.impl.btree.DisjunctionEnumeration.next(DisjunctionEnumeration.java:163)
>         at org.apache.directory.server.core.partition.impl.btree.IndexAssertionEnumeration.prefetch(IndexAssertionEnumeration.java:155)
>         at org.apache.directory.server.core.partition.impl.btree.IndexAssertionEnumeration.next(IndexAssertionEnumeration.java:117)
>         at org.apache.directory.server.core.partition.impl.btree.BTreeSearchResultEnumeration.next(BTreeSearchResultEnumeration.java:99)

>         at org.apache.directory.server.core.enumeration.SearchResultFilteringEnumeration.prefetch(SearchResultFilteringEnumeration.java:287)
>         at org.apache.directory.server.core.enumeration.SearchResultFilteringEnumeration.next(SearchResultFilteringEnumeration.java:201)
>         at org.apache.directory.server.core.enumeration.SearchResultFilteringEnumeration.prefetch(SearchResultFilteringEnumeration.java:287)
>         at org.apache.directory.server.core.enumeration.SearchResultFilteringEnumeration.next(SearchResultFilteringEnumeration.java:201)
>         at org.apache.directory.server.core.enumeration.SearchResultFilteringEnumeration.prefetch(SearchResultFilteringEnumeration.java:287)
>         at org.apache.directory.server.core.enumeration.SearchResultFilteringEnumeration.next(SearchResultFilteringEnumeration.java:201)
>         at org.apache.directory.server.ldap.support.SearchResponseIterator.next(SearchResponseIterator.java:185)
>         at org.apache.directory.server.ldap.support.SearchHandler.messageReceived(SearchHandler.java:281)
>         at org.apache.mina.handler.demux.DemuxingIoHandler.messageReceived(DemuxingIoHandler.java:128)
>         at org.apache.directory.server.ldap.LdapProtocolProvider$LdapProtocolHandler.messageReceived(LdapProtocolProvider.java:431)
>         at org.apache.mina.common.support.AbstractIoFilterChain$2.messageReceived(AbstractIoFilterChain.java:188)
>         at org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(AbstractIoFilterChain.java:501)
>         at org.apache.mina.common.support.AbstractIoFilterChain.access$1000(AbstractIoFilterChain.java:51)
>         at org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceived(AbstractIoFilterChain.java:787)
>         at org.apache.mina.filter.LoggingFilter.messageReceived(LoggingFilter.java:95)
>         at org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(AbstractIoFilterChain.java:501)
>         at org.apache.mina.common.support.AbstractIoFilterChain.access$1000(AbstractIoFilterChain.java:51)
>         at org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceived(AbstractIoFilterChain.java:787)
>         at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:187)
>         at org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(AbstractIoFilterChain.java:501)
>         at org.apache.mina.common.support.AbstractIoFilterChain.access$1000(AbstractIoFilterChain.java:51)
>         at org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceived(AbstractIoFilterChain.java:787)
>         at org.apache.mina.filter.ThreadPoolFilter.processEvent(ThreadPoolFilter.java:718)
>         at org.apache.mina.filter.ThreadPoolFilter$Worker.processEvents(ThreadPoolFilter.java:474)
>         at org.apache.mina.filter.ThreadPoolFilter$Worker.run(ThreadPoolFilter.java:429)

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