Hyunsik Choi created TAJO-1190:
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Summary: INSERT INTO to partition tables may cause NPE.
Key: TAJO-1190
URL: https://issues.apache.org/jira/browse/TAJO-1190
Project: Tajo
Issue Type: Improvement
Reporter: Hyunsik Choi
Assignee: Hyunsik Choi
Fix For: 0.9.1
*Reproduction*
{noformat}
tajo> CREATE EXTERNAL TABLE distinct_tb (distinct_id text) USING CSV PARTITION
BY COLUMN (CNT TEXT) LOCATION '/user/hyunsik/test';
OK
> insert overwrite into distinct_tb (distinct_id) select l_returnflag from
> lineitem where l_orderkey = 1000 limit 1;
default> insert overwrite into distinct_tb (distinct_id) select l_returnflag
from lineitem where l_orderkey = 1000 limit 1;
Progress: 0%, response time: 0.202 sec
Progress: 0%, response time: 0.203 sec
Progress: 0%, response time: 0.607 sec
Progress: 11%, response time: 1.409 sec
Progress: 28%, response time: 2.414 sec
ERROR: java.lang.NullPointerException
java.io.IOException: java.lang.NullPointerException
at
org.apache.tajo.engine.planner.physical.HashShuffleFileWriteExec.next(HashShuffleFileWriteExec.java:152)
at org.apache.tajo.worker.Task.run(Task.java:448)
at org.apache.tajo.worker.TaskRunner$1.run(TaskRunner.java:276)
at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.NullPointerException
at
org.apache.tajo.engine.planner.physical.HashShuffleFileWriteExec.next(HashShuffleFileWriteExec.java:142)
... 3 more
{noformat}
*Description*
This problem actually includes three bugs: 1) NULL of InputStats of SeqScan, 2)
NULL of getCause().getMessage in RemoteCallException, and 3) some null check
bug in TajoWorkerClientService.
This patch fixes the all bugs that I found.
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