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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-17881) LLAP: Text cache NPE when hive.llap.io.memory.mode=none
Date Wed, 25 Oct 2017 19:23:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-17881?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16219343#comment-16219343
] 

Sergey Shelukhin commented on HIVE-17881:
-----------------------------------------

I don't recall why I added this setting but it was a mistake... it's not really a good use
case and just complicates the code. For testing it should be possible to flush the cache manually
or something. 

> LLAP: Text cache NPE when hive.llap.io.memory.mode=none
> -------------------------------------------------------
>
>                 Key: HIVE-17881
>                 URL: https://issues.apache.org/jira/browse/HIVE-17881
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 3.0.0
>            Reporter: Prasanth Jayachandran
>
> With LLAP IO enabled and hive.llap.io.memory.mode set to false. Text cache throws NPE
for following query
> {code}
> select t1.k,t1.v from src t1 join src t2 on t1.k>=t2.k;
> {code}
> {code}
> Caused by: java.lang.NullPointerException
> 	at org.apache.hadoop.hive.llap.io.encoded.SerDeEncodedDataReader.readFileWithCache(SerDeEncodedDataReader.java:763)
> 	at org.apache.hadoop.hive.llap.io.encoded.SerDeEncodedDataReader.performDataRead(SerDeEncodedDataReader.java:668)
> 	at org.apache.hadoop.hive.llap.io.encoded.SerDeEncodedDataReader$5.run(SerDeEncodedDataReader.java:259)
> 	at org.apache.hadoop.hive.llap.io.encoded.SerDeEncodedDataReader$5.run(SerDeEncodedDataReader.java:256)
> 	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:1889)
> 	at org.apache.hadoop.hive.llap.io.encoded.SerDeEncodedDataReader.callInternal(SerDeEncodedDataReader.java:256)
> 	at org.apache.hadoop.hive.llap.io.encoded.SerDeEncodedDataReader.callInternal(SerDeEncodedDataReader.java:107)
> {code}



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