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Posted to dev@hive.apache.org by "Gopal V (JIRA)" <ji...@apache.org> on 2014/10/08 22:56:34 UTC
[jira] [Commented] (HIVE-8328) MapJoin implementation in Tez should
not reload hashtables
[ https://issues.apache.org/jira/browse/HIVE-8328?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14164144#comment-14164144 ]
Gopal V commented on HIVE-8328:
-------------------------------
Updated patch, with some comments to document behaviour.
> MapJoin implementation in Tez should not reload hashtables
> -----------------------------------------------------------
>
> Key: HIVE-8328
> URL: https://issues.apache.org/jira/browse/HIVE-8328
> Project: Hive
> Issue Type: Bug
> Components: Tez
> Affects Versions: 0.14.0
> Reporter: Gopal V
> Assignee: Gopal V
> Priority: Blocker
> Labels: Regression
> Fix For: 0.14.0
>
> Attachments: HIVE-8328.1.patch, HIVE-8328.WIP.patch
>
>
> {code}
> private void loadHashTable() throws HiveException {
> if ((this.getExecContext() != null)
> && ((this.getExecContext().getLocalWork() == null) || (!this.getExecContext()
> .getLocalWork().getInputFileChangeSensitive()))) {
> if (hashTblInitedOnce) {
> return;
> } else {
> hashTblInitedOnce = true;
> }
> }
> {code}
> This is not exiting in Tez, even if hashTblInitedOnce=true;
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