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
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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