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https://issues.apache.org/jira/browse/HAMA-928?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14338065#comment-14338065
]
Edward J. Yoon commented on HAMA-928:
-------------------------------------
Okay, this error occurs only with Local mode. BTW, it seems compression per
message is not good idea. I'll fix and refactor after more benchmarks.
> FAILED_TO_UNCOMPRESS with a lot of messages
> -------------------------------------------
>
> Key: HAMA-928
> URL: https://issues.apache.org/jira/browse/HAMA-928
> Project: Hama
> Issue Type: Bug
> Reporter: Edward J. Yoon
> Assignee: Edward J. Yoon
> Fix For: 0.7.0
>
>
> This error occurs when a lot of messages need to be (un)compressed.
> {code}
> 15/02/26 09:31:58 ERROR compress.BSPMessageCompressor: Unable to decompress.
> java.io.IOException: FAILED_TO_UNCOMPRESS(5)
> at org.xerial.snappy.SnappyNative.throw_error(SnappyNative.java:78)
> at org.xerial.snappy.SnappyNative.rawUncompress(Native Method)
> at org.xerial.snappy.Snappy.rawUncompress(Snappy.java:395)
> at org.xerial.snappy.Snappy.uncompress(Snappy.java:431)
> at
> org.xerial.snappy.SnappyInputStream.readFully(SnappyInputStream.java:127)
> at
> org.xerial.snappy.SnappyInputStream.readHeader(SnappyInputStream.java:88)
> at org.xerial.snappy.SnappyInputStream.<init>(SnappyInputStream.java:58)
> at
> org.apache.hama.bsp.message.compress.SnappyCompressor.decompress(SnappyCompressor.java:80)
> at
> org.apache.hama.bsp.BSPMessageBundle$1.next(BSPMessageBundle.java:142)
> at
> org.apache.hama.bsp.BSPMessageBundle$1.next(BSPMessageBundle.java:110)
> at
> org.apache.hama.bsp.LocalBSPRunner$LocalMessageManager.transfer(LocalBSPRunner.java:364)
> at org.apache.hama.bsp.BSPPeerImpl.sync(BSPPeerImpl.java:385)
> at org.apache.hama.graph.GraphJobRunner.bsp(GraphJobRunner.java:138)
> at
> org.apache.hama.bsp.LocalBSPRunner$BSPRunner.run(LocalBSPRunner.java:258)
> at
> org.apache.hama.bsp.LocalBSPRunner$BSPRunner.call(LocalBSPRunner.java:288)
> at
> org.apache.hama.bsp.LocalBSPRunner$BSPRunner.call(LocalBSPRunner.java:212)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> 15/02/26 09:31:58 ERROR bsp.BSPPeerImpl: Error while sending messages
> java.lang.NullPointerException
> at
> org.apache.hama.bsp.message.compress.SnappyCompressor.decompress(SnappyCompressor.java:88)
> at
> org.apache.hama.bsp.BSPMessageBundle$1.next(BSPMessageBundle.java:142)
> at
> org.apache.hama.bsp.BSPMessageBundle$1.next(BSPMessageBundle.java:110)
> at
> org.apache.hama.bsp.LocalBSPRunner$LocalMessageManager.transfer(LocalBSPRunner.java:364)
> at org.apache.hama.bsp.BSPPeerImpl.sync(BSPPeerImpl.java:385)
> at org.apache.hama.graph.GraphJobRunner.bsp(GraphJobRunner.java:138)
> at
> org.apache.hama.bsp.LocalBSPRunner$BSPRunner.run(LocalBSPRunner.java:258)
> at
> org.apache.hama.bsp.LocalBSPRunner$BSPRunner.call(LocalBSPRunner.java:288)
> at
> org.apache.hama.bsp.LocalBSPRunner$BSPRunner.call(LocalBSPRunner.java:212)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> {code}
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