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liuchuanqi edited comment on TEZ-2805 at 9/12/15 9:14 AM:
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yes, for the same query
use the newest code (https://github.com/twitter/hadoop-lzo/blob/master/src/main/java/com/hadoop/mapred/DeprecatedLzoTextInputFormat.java) task still fail .
LzoIndex index = indexes.get(filename); return !index.isEmpty(); it seems like 'index' is null ,means that indexes.get() can't get the object ,but under normal circumstances, 'indexes' contains all the files index object ,so i think it's a thread safety issue.
Could you give me some suggestions, please?
was (Author: cqliu):
yes, for the same query
use the newest code ((https://github.com/twitter/hadoop-lzo/blob/master/src/main/java/com/hadoop/mapred/DeprecatedLzoTextInputFormat.java) task still fail .
LzoIndex index = indexes.get(filename); return !index.isEmpty(); it seems like 'index' is null ,means that indexes.get() can't get the object ,but under normal circumstances, 'indexes' contains all the files index object ,so i think it's a thread safety issue.
Could you give me some suggestions, please?
> run task with lzo files sometimes fail
> ---------------------------------------
>
> Key: TEZ-2805
> URL: https://issues.apache.org/jira/browse/TEZ-2805
> Project: Apache Tez
> Issue Type: Bug
> Affects Versions: 0.7.0
> Reporter: liuchuanqi
>
> with lzo files (hadoop-lzo-0.4.15.jar) sometimes fail
> 2015-08-26 14:59:45,432 ERROR [main]: SessionState (SessionState.java:printError(966)) - Vertex failed, vertexName=Map 16, vertexId=vertex_1439806072228_0774_1_05, diagnostics=[Vertex vertex_1439806072228_0774_1_05 [Map 16] killed/failed due to:ROOT_INPUT_INIT_FAILURE, Vertex Input: bd_dms_inspection initializer failed, vertex=vertex_1439806072228_0774_1_05 [Map 16], java.lang.NullPointerException
> at com.hadoop.mapred.DeprecatedLzoTextInputFormat.isSplitable(DeprecatedLzoTextInputFormat.java:103)
> at org.apache.hadoop.mapred.FileInputFormat.getSplits(FileInputFormat.java:300)
> at com.hadoop.mapred.DeprecatedLzoTextInputFormat.getSplits(DeprecatedLzoTextInputFormat.java:112)
> at org.apache.hadoop.hive.ql.io.HiveInputFormat.addSplitsForGroup(HiveInputFormat.java:305)
> at org.apache.hadoop.hive.ql.io.HiveInputFormat.getSplits(HiveInputFormat.java:407)
> at org.apache.hadoop.hive.ql.exec.tez.HiveSplitGenerator.initialize(HiveSplitGenerator.java:155)
> at org.apache.tez.dag.app.dag.RootInputInitializerManager$InputInitializerCallable$1.run(RootInputInitializerManager.java:245)
> at org.apache.tez.dag.app.dag.RootInputInitializerManager$InputInitializerCallable$1.run(RootInputInitializerManager.java:239)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491)
> at org.apache.tez.dag.app.dag.RootInputInitializerManager$InputInitializerCallable.call(RootInputInitializerManager.java:239)
> at org.apache.tez.dag.app.dag.RootInputInitializerManager$InputInitializerCallable.call(RootInputInitializerManager.java:226)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:744)
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