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From "Vadim Katz (JIRA)" <j...@apache.org>
Subject [jira] Reopened: (AMQ-1380) ActiveIO does not close ControlFile
Date Fri, 12 Sep 2008 00:16:52 GMT

     [ https://issues.apache.org/activemq/browse/AMQ-1380?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vadim Katz reopened AMQ-1380:
-----------------------------


It does not look like the patch made it into activeio-core-3.1.0 which is included in 5.1.0

> ActiveIO does not close ControlFile 
> ------------------------------------
>
>                 Key: AMQ-1380
>                 URL: https://issues.apache.org/activemq/browse/AMQ-1380
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 4.1.1
>         Environment: All
>            Reporter: Joe Kutner
>             Fix For: 5.1.0
>
>         Attachments: patch.txt
>
>
> The following exception is thrown from an ActiveMQ instance that is in Slave mode that
causes it to crash.
> java.io.FileNotFoundException: ***/*******/*****/*******/journal/control.dat (Too many
open files)
>         at java.io.RandomAccessFile.open(Native Method)
>         at java.io.RandomAccessFile.<init>(RandomAccessFile.java:212)
>         at org.apache.activeio.journal.active.ControlFile.<init>(ControlFile.java:60)
>         at org.apache.activeio.journal.active.LogFileManager.initialize(LogFileManager.java:119)
>         at org.apache.activeio.journal.active.LogFileManager.<init>(LogFileManager.java:102)
>         at org.apache.activeio.journal.active.JournalImpl.<init>(JournalImpl.java:101)
>         at org.apache.activemq.store.DefaultPersistenceAdapterFactory.createJournal(DefaultPersistenceAdapterFactory.java:224)
>         at org.apache.activemq.store.DefaultPersistenceAdapterFactory.getJournal(DefaultPersistenceAdapterFactory.java:132)
>         at org.apache.activemq.store.DefaultPersistenceAdapterFactory.createPersistenceAdapter(DefaultPersistenceAdapterFactory.java:70)
>         at org.apache.activemq.store.PersistenceAdapterFactoryBean.getObject(PersistenceAdapterFactoryBean.java:35)
>         at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectFromFactoryBean(AbstractBeanFactory.java:994)
>         ... 41 more
> The problem is that each time ActiveIO checks to see if control.dat is locked it creates
a new java.io.RandomAccessFile.  If the control.dat file is locked, it fails to close the
RandomAccessFile.
> This exception always will be thrown from an instance in Shared-File-System Slave mode
that continues to check the Journal file (which the Master has locked).  But the rate at which
is is thrown depends on the maximum number of files the OS allows to be open.  You can check
how many files are open with 'ulimit -a'

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