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Posted to dev@pig.apache.org by "Rohini Palaniswamy (JIRA)" <ji...@apache.org> on 2015/04/30 07:29:06 UTC
[jira] [Reopened] (PIG-4315) MergeJoin followed by order by gives
NPE in Tez
[ https://issues.apache.org/jira/browse/PIG-4315?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rohini Palaniswamy reopened PIG-4315:
-------------------------------------
Assignee: (was: Rohini Palaniswamy)
[~daijy],
This is not fixed. I was hoping to fix it by rewriting merge join to use broadcast like replicate join, but never got to finish that.
> MergeJoin followed by order by gives NPE in Tez
> -----------------------------------------------
>
> Key: PIG-4315
> URL: https://issues.apache.org/jira/browse/PIG-4315
> Project: Pig
> Issue Type: Bug
> Components: tez
> Reporter: Rohini Palaniswamy
> Fix For: 0.15.0
>
>
> TestHBaseStorage.testMergeJoin() fails. connectingLR is null in CombinerOptimizer and throws NPE in
> {code}
> from.plan.getOperator(connectingLR.getOperatorKey())
> {code}
> When splitting DAGs and doing moveTree TezCompilerUtil.connect() overwrites the output key of sampler LocalRearrange to the partitioner vertex.
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