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https://issues.apache.org/jira/browse/MAPREDUCE-5237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13666460#comment-13666460
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Zhijie Shen commented on MAPREDUCE-5237:
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Hm... Though MR 1.x applications will not use INVALID explicitly, there's still
the risk of being broken. For example,
{code}
switch(clusterStatus.getJobTrackerState()) {
case INITIALIZING:
...;
break;
case RUNNING:
...;
break;
default:
throw new Exception("Unexpected State");
}
{code}
Thanks, Mayank! I'll modify the code accordingly.
> ClusterStatus incompatiblity issues with MR1
> --------------------------------------------
>
> Key: MAPREDUCE-5237
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5237
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Reporter: Zhijie Shen
> Assignee: Zhijie Shen
> Attachments: MAPREDUCE-5237.1.patch, MAPREDUCE-5237.2.patch
>
>
> The three functions are:
> Collection<String> getGraylistedTrackerNames()
> int getGraylistedTrackers()
> State getJobTrackerState()
> The're tracker related, such that they are no longer used in MR2. Maybe we
> should add them and throw UnsupportedOperationException?
> In addition, UNINITIALIZED_MEMORY_VALUE changes from long to int
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