A fix is available
APAR status
Closed as program error.
Error description
Class: com.ibm.wmqfte.thread.FTEThread Instance: 8a037f Method: uncaughtException Probe: ABEND_001 Cause: java.nio.channels.OverlappingFileLockException java.nio.channels.OverlappingFileLockException at sun.nio.ch.FileChannelImpl$SharedFileLockTable.checkList(FileCha nnelImpl.java:1173) at sun.nio.ch.FileChannelImpl$SharedFileLockTable.add(FileChannelIm pl.java:1075) at sun.nio.ch.FileChannelImpl.tryLock(FileChannelImpl.java:881) at com.ibm.wmqfte.io.impl.FTEFileImpl.startsWith(FTEFileImpl.java:9 68) at com.ibm.wmqfte.io.impl.FTEFileImpl.deleteTempFiles(FTEFileImpl.j ava:889) at com.ibm.wmqfte.io.impl.FTEFileChannelImpl.complete(FTEFileChanne lImpl.java:583) at com.ibm.wmqfte.io.impl.FTEFileChannelImpl.close(FTEFileChannelIm pl.java:517) at com.ibm.wmqfte.io.impl.FTEBufferedFileChannel.close(FTEBufferedF ileChannel.java:177) at com.ibm.wmqfte.io.FTEFilterFileChannel.close(FTEFilterFileChanne l.java:87) at com.ibm.wmqfte.io.impl.FTETextFileChannelImpl.close(FTETextFileC hannelImpl.java:353) at com.ibm.wmqfte.io.FTEFilterFileChannel.close(FTEFilterFileChanne l.java:80) at com.ibm.wmqfte.io.impl.FTETextFileChannelImpl.close(FTETextFileC hannelImpl.java:341) at com.ibm.wmqfte.transfer.impl.TransferReceiverRunnable.run(Transf erReceiverRunnable.java:649) at java.lang.Thread.run(Thread.java:619) at com.ibm.wmqfte.thread.FTEThread.run(FTEThread.java:52) ... System was able to be restarted. This APAR is to prevent the ABEND from occuring.
Local fix
WMQFTE is restarted
Problem summary
If IBM WebSphere MQ File Transfer Edition is unable to obtain a file lock when attempting to compare two files, it may ABEND with java.nio.channels.OverlappingFileLockException. This will only occur if one of the operands if unable to be locked. If the other operand of the compare is unable to be locked then an IOException will be thrown internally, which is handled gracefully by the agent (which may later retry). This APAR is applicable if the following can be seen within the ABEND file generated by the agent: 1) Probe: ABEND_001 2) Cause: java.nio.channels.OverlappingFileLockException 3) The stack below the OverlappingFileLockException contains: com.ibm.wmqfte.io.impl.FTEFileImpl.startsWith(FTEFileImpl.java:# ##) USERS AFFECTED: All PLATFORMS AFFECTED: All
Problem conclusion
The code has been altered to ensure that both operands of the compare are handled the same way. If the agent is unable to obtain a file lock on either of these files, then an IOException will be thrown and handled gracefully internally by the agent. The agent will no longer ABEND. The fix for this APAR is currently targeted for inclusion in fix pack 7.0.4.2.
Temporary fix
Comments
APAR Information
APAR number
IC80310
Reported component name
WMQ FILE TRANSF
Reported component ID
5724R1000
Reported release
703
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2011-12-08
Closed date
2011-12-28
Last modified date
2012-07-20
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
WMQ FILE TRANSF
Fixed component ID
5724R1000
Applicable component levels
R703 PSY
UP
R704 PSY
UP
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Document Information
Modified date:
20 July 2012