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https://issues.apache.org/jira/browse/HADOOP-5449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12681770#action_12681770
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Hudson commented on HADOOP-5449:
--------------------------------
Integrated in Hadoop-trunk #778 (See
[http://hudson.zones.apache.org/hudson/job/Hadoop-trunk/778/])
. Fixes the history cleaner thread. Contributed by Amareshwari Sriramadasu.
. Fixes the history cleaner thread. Contributed by Amareshwari Sriramadasu.
> Verify if JobHistory.HistoryCleaner works as expected
> -----------------------------------------------------
>
> Key: HADOOP-5449
> URL: https://issues.apache.org/jira/browse/HADOOP-5449
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Reporter: Amar Kamat
> Assignee: Amareshwari Sriramadasu
> Priority: Blocker
> Fix For: 0.19.2
>
> Attachments: patch-5449.txt
>
>
> Here is the piece of code I doubt
> {code}
> public void run(){
> if (isRunning){
> return;
> }
> now = System.currentTimeMillis();
> // clean history only once a day at max
> if (lastRan ==0 || (now - lastRan) < ONE_DAY_IN_MS){
> return;
> }
> lastRan = now;
> .....
> // main code for cleaning
> }
> {code}
> {{lastRun}} is initialized to 0 and hence HistoryCleaner will never execute
> the main code. Also a testcase should be written for
> JobHistory.HistoryCleaner to check if it works as expected.
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