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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/18682/
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Review request for Tajo.
Bugs: TAJO-645
https://issues.apache.org/jira/browse/TAJO-645
Repository: tajo
Description
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See the title. This problem causes the following error messages.
{noformat}
014-03-03 19:52:27,680 ERROR worker.Task (Task.java:run(687)) -
java.lang.NullPointerException
at org.apache.tajo.worker.Task$Reporter$1.run(Task.java:681)
at java.lang.Thread.run(Thread.java:724)
2014-03-03 19:52:27,689 INFO worker.Task (Task.java:<init>(181)) - Output File
Path:
hdfs://localhost:52744/tmp/tajo-hyunsik/staging/q_1393843945346_0001/RESULT/part-01-000000
{noformat}
The main cause is to start the report thread in Task before this.context is
initialized as follows:
{code:java}
this.reporter = new Reporter(taskId, masterProxy);
this.reporter.startCommunicationThread();
...
this.context = new TaskAttemptContext(systemConf, taskId,
request.getFragments().toArray(new
FragmentProto[request.getFragments().size()]), taskDir);
{code}
Diffs
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tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/worker/Task.java
56e539128094673bc07d92679fe0f0fbf81037f9
Diff: https://reviews.apache.org/r/18682/diff/
Testing
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Thanks,
Hyunsik Choi
