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Posted to issues@spark.apache.org by "hzw (JIRA)" <ji...@apache.org> on 2014/08/28 16:22:08 UTC
[jira] [Updated] (SPARK-3277) LZ4 compression cause the the
ExternalSort exception
[ https://issues.apache.org/jira/browse/SPARK-3277?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
hzw updated SPARK-3277:
-----------------------
Description:
I tested the LZ4 compression,and it come up with such problem.(with wordcount)
Also I tested the snappy and LZF,and they were OK.
At last I set the "spark.shuffle.spill" as false to avoid such exeception, but once open this "switch", this error would come.
It seems that if num of the words is few, wordcount will go through,but if it is a complex text ,this problem will show
Exeception Info as follow:
java.lang.AssertionError: assertion failed
at scala.Predef$.assert(Predef.scala:165)
at org.apache.spark.util.collection.ExternalAppendOnlyMap$DiskMapIterator.<init>(ExternalAppendOnlyMap.scala:416)
at org.apache.spark.util.collection.ExternalAppendOnlyMap.spill(ExternalAppendOnlyMap.scala:235)
at org.apache.spark.util.collection.ExternalAppendOnlyMap.insertAll(ExternalAppendOnlyMap.scala:150)
at org.apache.spark.Aggregator.combineValuesByKey(Aggregator.scala:58)
at org.apache.spark.shuffle.hash.HashShuffleWriter.write(HashShuffleWriter.scala:55)
at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:68)
at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41)
at org.apache.spark.scheduler.Task.run(Task.scala:54)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:177)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
was:
I tested the LZ4 compression,and it come up with such problem.(with wordcount)
Also I tested the snappy and LZF,and they were OK.
At last I set the "spark.shuffle.spill" as false to avoid such exeception, but once open this "switch", this error would come.
Exeception Info as follow:
java.lang.AssertionError: assertion failed
at scala.Predef$.assert(Predef.scala:165)
at org.apache.spark.util.collection.ExternalAppendOnlyMap$DiskMapIterator.<init>(ExternalAppendOnlyMap.scala:416)
at org.apache.spark.util.collection.ExternalAppendOnlyMap.spill(ExternalAppendOnlyMap.scala:235)
at org.apache.spark.util.collection.ExternalAppendOnlyMap.insertAll(ExternalAppendOnlyMap.scala:150)
at org.apache.spark.Aggregator.combineValuesByKey(Aggregator.scala:58)
at org.apache.spark.shuffle.hash.HashShuffleWriter.write(HashShuffleWriter.scala:55)
at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:68)
at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41)
at org.apache.spark.scheduler.Task.run(Task.scala:54)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:177)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
> LZ4 compression cause the the ExternalSort exception
> ----------------------------------------------------
>
> Key: SPARK-3277
> URL: https://issues.apache.org/jira/browse/SPARK-3277
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 1.0.2
> Reporter: hzw
> Fix For: 1.1.0
>
>
> I tested the LZ4 compression,and it come up with such problem.(with wordcount)
> Also I tested the snappy and LZF,and they were OK.
> At last I set the "spark.shuffle.spill" as false to avoid such exeception, but once open this "switch", this error would come.
> It seems that if num of the words is few, wordcount will go through,but if it is a complex text ,this problem will show
> Exeception Info as follow:
> java.lang.AssertionError: assertion failed
> at scala.Predef$.assert(Predef.scala:165)
> at org.apache.spark.util.collection.ExternalAppendOnlyMap$DiskMapIterator.<init>(ExternalAppendOnlyMap.scala:416)
> at org.apache.spark.util.collection.ExternalAppendOnlyMap.spill(ExternalAppendOnlyMap.scala:235)
> at org.apache.spark.util.collection.ExternalAppendOnlyMap.insertAll(ExternalAppendOnlyMap.scala:150)
> at org.apache.spark.Aggregator.combineValuesByKey(Aggregator.scala:58)
> at org.apache.spark.shuffle.hash.HashShuffleWriter.write(HashShuffleWriter.scala:55)
> at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:68)
> at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41)
> at org.apache.spark.scheduler.Task.run(Task.scala:54)
> at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:177)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> at java.lang.Thread.run(Thread.java:722)
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