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Posted to mapreduce-issues@hadoop.apache.org by "groot (Jira)" <ji...@apache.org> on 2022/08/15 20:50:00 UTC
[jira] [Updated] (MAPREDUCE-7370) Parallelize MultipleOutputs#close call
[ https://issues.apache.org/jira/browse/MAPREDUCE-7370?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
groot updated MAPREDUCE-7370:
-----------------------------
Status: Patch Available (was: In Progress)
> Parallelize MultipleOutputs#close call
> --------------------------------------
>
> Key: MAPREDUCE-7370
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7370
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Affects Versions: 3.3.0
> Reporter: Prabhu Joseph
> Assignee: groot
> Priority: Major
> Labels: pull-request-available
> Time Spent: 2h 20m
> Remaining Estimate: 0h
>
> This call takes more time when there are lot of files to close and there is a high latency to close. Parallelize MultipleOutputs#close call to improve the speed.
> {code}
> public void close() throws IOException {
> for (RecordWriter writer : recordWriters.values()) {
> writer.close(null);
> }
> }
> {code}
> Idea is from [~stevel@apache.org]
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