I thing I found it.
Explanation of this error is pretty simple - I put a serializable object
into the cache, but after some time I get it out of the cache and start
making modifications to it. But at the same time the TCP sender is trying
to serialize it.
Solution:
- have a deep copy method implemented
- create a copy when pulling objects out of cache so that serialization can
complete
Thanks,
Marek Cyzio
Equifax
(770)740-6610
[EMAIL PROTECTED]
Marek
Cyzio/Technology/
Equifax To
"JCS Users List"
11/10/2006 02:40 <jcs-users@jakarta.apache.org>
PM cc
"JCS Users List"
<jcs-users@jakarta.apache.org>
Subject
RE: Exception in log files under
heavy load(Document link: Marek
Cyzio)
The latest.
No.
No.
Thanks,
Marek Cyzio
Equifax
(770)740-6610
[EMAIL PROTECTED]
"Smuts, Aaron"
<[EMAIL PROTECTED]
elocity.com> To
"JCS Users List"
11/10/2006 02:29 <jcs-users@jakarta.apache.org>
PM cc
Subject
Please respond to RE: Exception in log files under
"JCS Users List" heavy load
<[EMAIL PROTECTED]
a.apache.org>
What version of JCS are you using?
Are you using groups?
Are you using partial key removal--ending a string key in ":"?
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> Sent: Friday, November 10, 2006 2:10 PM
> To: JCS Users List
> Subject: Exception in log files under heavy load
>
>
>
>
>
> Hey,
>
> I am getting the following exception under heavy load:
>
> Disabling lateral cache due to error Failed to put
> [eid:1200611101402423941502725] to eid_session_data
> java.util.ConcurrentModificationException
> at
java.util.HashMap$HashIterator.nextEntry(HashMap.java:787)
> at java.util.HashMap$EntryIterator.next(HashMap.java:829)
> at java.util.HashMap$EntryIterator.next(HashMap.java:827)
> at java.util.HashMap.writeObject(HashMap.java:983)
> at sun.reflect.GeneratedMethodAccessor114.invoke(Unknown
> Source)
> at
>
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Im
> pl.java:25)
>
> at java.lang.reflect.Method.invoke(Method.java:585)
> at
>
java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:890)
> at
>
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1333)
> at
>
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1
28
> 4)
>
> at
> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1073)
> at
>
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:13
69
> )
> at
>
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1341)
> at
>
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1
28
> 4)
>
> at
> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1073)
> at
>
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:13
69
> )
> at
>
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1341)
> at
>
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1
28
> 4)
>
> at
> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1073)
> at
>
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:13
69
> )
> at
>
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1341)
> at
>
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1
28
> 4)
>
> at
> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1073)
> at
>
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:13
69
> )
> at
>
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1341)
> at
>
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1
28
> 4)
>
> at
> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1073)
> at
> java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:291)
> at
>
org.apache.jcs.auxiliary.lateral.socket.tcp.LateralTCPSender.send(Latera
lT
> CPSender.java:212)
>
> at
>
org.apache.jcs.auxiliary.lateral.socket.tcp.LateralTCPService.update(Lat
er
> alTCPService.java:117)
>
> at
>
org.apache.jcs.auxiliary.lateral.LateralCache.update(LateralCache.java:9
7)
> at
> org.apache.jcs.engine.CacheAdaptor.handlePut(CacheAdaptor.java:83)
> at
>
org.apache.jcs.engine.CacheEventQueue$PutEvent.doRun(CacheEventQueue.jav
a:
> 656)
>
> at
>
org.apache.jcs.engine.CacheEventQueue$AbstractCacheEvent.run(CacheEventQ
ue
> ue.java:578)
>
> at
>
org.apache.jcs.engine.CacheEventQueue$QProcessor.run(CacheEventQueue.jav
a:
> 548)
>
> I guess there is a not synchronized access to a hashmap that should be
> synchronized somewhere...
>
> Thanks,
>
> Marek Cyzio
> Equifax
> (770)740-6610
> [EMAIL PROTECTED]
>
>
>
> This message contains information from Equifax Inc. which may be
> confidential and privileged. If you are not an intended recipient,
please
> refrain from any disclosure, copying, distribution or use of this
> information and note that such actions are prohibited. If you have
> received this transmission in error, please notify by e-mail
> [EMAIL PROTECTED]
>
>
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