jincheng created HADOOP-15452:
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Summary: Snappy Decpmpressor met ArrayIndexOutOfBoundsException
when reduce task fetch map output data
Key: HADOOP-15452
URL: https://issues.apache.org/jira/browse/HADOOP-15452
Project: Hadoop Common
Issue Type: Bug
Components: common
Affects Versions: 2.6.0
Environment: hadoop -2.6.0-cdh5.4.4
Reporter: jincheng
RT, when reducers tasks fetch data from mapper tasks, it met
ArrayIndexOutOfBoundsException, here is stackTrace:
{code:java}
// code placeholder
{code}
Error: org.apache.hadoop.mapreduce.task.reduce.Shuffle$ShuffleError: error in
shuffle in fetcher#1 at
org.apache.hadoop.mapreduce.task.reduce.Shuffle.run(Shuffle.java:134) at
org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:379) at
org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:165) at
java.security.AccessController.doPrivileged(Native Method) at
javax.security.auth.Subject.doAs(Subject.java:422) at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1671)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:160) Caused by:
java.lang.ArrayIndexOutOfBoundsException at
org.apache.hadoop.io.compress.snappy.SnappyDecompressor.setInput(SnappyDecompressor.java:111)
at
org.apache.hadoop.io.compress.BlockDecompressorStream.decompress(BlockDecompressorStream.java:104)
at
org.apache.hadoop.io.compress.DecompressorStream.read(DecompressorStream.java:85)
at org.apache.hadoop.io.IOUtils.readFully(IOUtils.java:199) at
org.apache.hadoop.mapreduce.task.reduce.InMemoryMapOutput.shuffle(InMemoryMapOutput.java:98)
at
org.apache.hadoop.mapreduce.task.reduce.Fetcher.copyMapOutput(Fetcher.java:549)
at
org.apache.hadoop.mapreduce.task.reduce.Fetcher.copyFromHost(Fetcher.java:346)
at org.apache.hadoop.mapreduce.task.reduce.Fetcher.run(Fetcher.java:202)
Anyone has ideas?
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