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Posted to mapreduce-issues@hadoop.apache.org by "Peter Bacsko (Jira)" <ji...@apache.org> on 2019/12/04 12:39:00 UTC
[jira] [Updated] (MAPREDUCE-7250) FrameworkUploader: add option to
skip replication check
[ https://issues.apache.org/jira/browse/MAPREDUCE-7250?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Peter Bacsko updated MAPREDUCE-7250:
------------------------------------
Attachment: MAPREDUCE-7250-001.patch
> FrameworkUploader: add option to skip replication check
> -------------------------------------------------------
>
> Key: MAPREDUCE-7250
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7250
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: mrv2
> Reporter: Peter Bacsko
> Assignee: Peter Bacsko
> Priority: Major
> Attachments: MAPREDUCE-7250-001.patch
>
>
> The framework uploader tool has this piece of code which makes sure that all block of the uploaded mapreduce tarball has been replicated:
> {noformat}
> while(endTime - startTime < timeout * 1000 &&
> currentReplication < acceptableReplication) {
> Thread.sleep(1000);
> endTime = System.currentTimeMillis();
> currentReplication = getSmallestReplicatedBlockCount();
> }
> {noformat}
> There are cases, however, when we don't want to wait for this (eg. we want to speed up Hadoop installation).
> I suggest adding {{--skiprelicationcheck}} switch which disables this replication test.
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