Excessive WebObjects Locks

"Vicky C. Miller" <[email protected]> Fri, 19 Jun 2009 19:07:35 -0400

Newsgroups	gmane.comp.web.webobjects.devel
Organization	Consulting, Services and Solutions Group, Inc.
Message-ID	<C5AA9087F24D4719A46BA13CCA9B1A5F@VCMILLER>

 

We're running into an excessive dead locks issue.  Our issue is occurring
where the code uses EOEditingContext and other objects in the WebObjects API
that acquire a com.webobjects.foundation.NSRecursiveLock.  

 

In a particular Java process, 145 threads are all locked up and are not
waking up.

A thread that is locked up, happens in

at SOLARConfig.enabledOnlineExamTools(SOLARConfig.java:656)

and looks like

"WorkerThread164" prio=5 tid=0x00410380 nid=0xc9 in Object.wait()
[0xca5fe000..0xca5ffc30]

            at java.lang.Object.wait(Native Method)

            - waiting on <0xd9ada680> (a
com.webobjects.foundation.NSRecursiveLock)

 

We are running WebObjects 5.2.4 / Solaris 8/Java 1.4.2_7.  Is it resolved in
a later version of WebObjects and/or Java.  Does anyone have a resolution.

 

A dump file from our system is attached.

 

Regards,

Vic

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last_dump_6-19-09.zip (application/x-zip-compressed, 13.2 KB) - not displayed