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From "Gary Tully (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (AMQ-5016) BitArrayBin doesn't work well with index larger than Integer.MAX_VALUE
Date Wed, 06 Aug 2014 14:23:15 GMT

     [ https://issues.apache.org/jira/browse/AMQ-5016?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gary Tully resolved AMQ-5016.
-----------------------------

    Resolution: Fixed
      Assignee: Gary Tully

add long field so that existing serialized records can be read.
http://git-wip-us.apache.org/repos/asf/activemq/commit/58ae402b

> BitArrayBin doesn't work well with index larger than Integer.MAX_VALUE
> ----------------------------------------------------------------------
>
>                 Key: AMQ-5016
>                 URL: https://issues.apache.org/jira/browse/AMQ-5016
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: JMS client
>    Affects Versions: 5.9.0
>            Reporter: Dan Yu
>            Assignee: Gary Tully
>             Fix For: 5.11.0
>
>         Attachments: BitArrayBinTest.java
>
>
> In BitArrayBin class, the index's unit type is long. It also has a variable called firstIndex,
which store the index where the window starts. And that firstindex's unit is int. If the index
is bigger than Integer.MAX_VALUE, setBit() and getBit() starts to return bad value.
> The defect causes activemq client to perform badly when receiving message that sequence
id is bigger than max interger. It spends most of the time to shift window, and also blocks
other consumer threads. Below is the jstack log that shows the problem.
> {code}
> "ActiveMQ Session Task-869879" prio=10 tid=0x00007f412d6ee000 nid=0x3cbe runnable [0x00007f405b7b6000]
>    java.lang.Thread.State: RUNNABLE
>         at java.util.LinkedList.linkLast(LinkedList.java:140)
>         at java.util.LinkedList.add(LinkedList.java:336)
>         at org.apache.activemq.util.BitArrayBin.getBitArray(BitArrayBin.java:123)
>         at org.apache.activemq.util.BitArrayBin.setBit(BitArrayBin.java:59)
>         at org.apache.activemq.ActiveMQMessage AuditNoSync.isDuplicate(ActiveMQMessageAuditNoSyn
c.java:160)
>         at org.apache.activemq.ActiveMQMessageAudit.isDuplicate(ActiveMQMessageAudit.java:59)
>         - locked <0x00007f46a0138ab0> (a org.apache.activemq.ActiveMQMessageAudit)
>         at org.apache.activemq.ActiveMQMessage AuditNoSync.isDuplicate(ActiveMQMessageAuditNoSyn
c.java:140)
>         at org.apache.activemq.ConnectionAudit.isDuplicate(ConnectionAudit.java:52)
>         - locked <0x00007f4881e6b968> (a org.apache.activemq.ConnectionAudit)
>         at org.apache.activemq.ActiveMQConnection.isDuplicate(ActiveMQConnection.java:2291)
>         at org.apache.activemq.ActiveMQMessageConsumer.dispatch(ActiveMQMessageConsumer.java:1223)
>         - locked <0x00007f45db222fb8> (a java.lang.Object)
>         at org.apache.activemq.ActiveMQSessionExecutor.dispatch(ActiveMQSessionExecutor.java:134)
>         at org.apache.activemq.ActiveMQSessionExecutor.iterate(ActiveMQSessionExecutor.java:205)
>         at org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:127)
>         at org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:48)
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
>         at java.lang.Thread.run(Thread.java:722)
> {code}



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