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Posted to java-dev@axis.apache.org by "Thomas B. (JIRA)" <ax...@ws.apache.org> on 2013/01/07 10:58:15 UTC
[jira] [Commented] (AXIS-2863) Circular Reference in
Deserialization and XMLReader
[ https://issues.apache.org/jira/browse/AXIS-2863?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13545738#comment-13545738 ]
Thomas B. commented on AXIS-2863:
---------------------------------
Good morning,
sorry to dig this up, but i have the same problem with the latest build you linked.
Since 3 Months, we get OutOfMemory Errors in our Applications and we are now at the end of our physical RAM in our Servers.
After debugging our Applications, hunt down all Memory Leaks we find, there is one big left in org/apache/axis/encoding/DeserializationContext .
We analyze our HeapDumps with IBM´s HeapAnalyzer and it told us:
240.481.911 bytes (89,63 %) of Java heap is used by 8.160.795 instances of java/lang/Integer Contains an instance) of the leak suspect:
- org/apache/axis/encoding/DeserializationContext holding 30.933.123 bytes at 0x1e3337e0
Is this known by anyone and is there a fix for it? We cant change 20 Applications with hundrets of Services to Axis2 over night. Its on our Roadmap, but we cant do nothing about this issue and wait util our production breaks.
> Circular Reference in Deserialization and XMLReader
> ---------------------------------------------------
>
> Key: AXIS-2863
> URL: https://issues.apache.org/jira/browse/AXIS-2863
> Project: Axis
> Issue Type: Bug
> Components: Serialization/Deserialization
> Affects Versions: 1.4
> Environment: IBM AIX JRE 1.4.2
> Reporter: Nagaraj
> Assignee: Andreas Veithen
> Priority: Critical
> Fix For: 1.4.1
>
> Original Estimate: 168h
> Remaining Estimate: 168h
>
> I got out of memory error and when i analysed heap dump, i was getting infinite active references of deserialization and xmlreader.When expand Deserialization context,XMLReader reference is there and when expand XMLReader,Deserialization reference is there.It seems to be circular reference.The sample output of heap dump is given below.
> | Shallow Heap | Retained Heap | Percentage
> org.apache.axis.encoding.DeserializationContext @ 0x505dbbc8 | 88 | 988,356,416 | 60.92%
> |- oracle.xml.parser.v2.XMLReader @ 0x505dc5f8 | 128 | 988,272,872 | 60.92%
> | |- org.apache.axis.encoding.DeserializationContext @ 0x504ce7d8 | 88 | 988,263,992 | 60.92%
> | | |- oracle.xml.parser.v2.XMLReader @ 0x505385b0 | 128 | 988,190,680 | 60.91%
> | | | |- org.apache.axis.encoding.DeserializationContext @ 0x89592c00 | 88 | 988,181,800 | 60.91%
> | | | | |- oracle.xml.parser.v2.XMLReader @ 0x89592e00 | 128 | 988,067,936 | 60.91%
> | | | | | |- org.apache.axis.encoding.DeserializationContext @ 0x50799858 | 88 | 988,059,056 | 60.91%
> | | | | | | |- oracle.xml.parser.v2.XMLReader @ 0x5079d0e8 | 128 | 987,975,512 | 60.90%
> | | | | | | | |- org.apache.axis.encoding.DeserializationContext @ 0x505e23d8 | 88 | 987,966,632 | 60.90%
> | | | | | | | | |- oracle.xml.parser.v2.XMLReader @ 0x505e1c08 | 128 | 987,892,528 | 60.90%
> Please provide some solution for this.
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