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https://issues.apache.org/jira/browse/MAPREDUCE-777?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12748780#action_12748780
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Amareshwari Sriramadasu commented on MAPREDUCE-777:
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Some questions/comments on proposed api:
1.
{code}
+
+ /* mapred.Queue.QueueState needs to extend this class */
+ public static enum QueueState {
+ STOPPED("stopped"), RUNNING("running");
{code}
enum cannot be extended in java. Owen, do you mean I should wrap this in a
class?
2. bq. public Job getJob(JobID job) throws IOException { return null; }
For returning Job handle from JobID, we should find a way to get configuration
of the job, through JobSubmissionProtocol.
3.
{code}
+ public QueueInfo getQueue(String name) throws IOException { return null; }
+ public Metrics getClusterStatus() throws IOException { return null; }
{code}
For these apis, JobSubmissionProtocol should be modified to return QueueInfo
and Metrics, instead of bigger objects JobQueueInfo and ClusterStatus, right?
> A method for finding and tracking jobs from the new API
> -------------------------------------------------------
>
> Key: MAPREDUCE-777
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-777
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Components: client
> Reporter: Owen O'Malley
> Assignee: Amareshwari Sriramadasu
> Fix For: 0.21.0
>
> Attachments: m-777.patch, patch-777-1.txt, patch-777-2.txt,
> patch-777.txt
>
>
> We need to create a replacement interface for the JobClient API in the new
> interface. In particular, the user needs to be able to query and track jobs
> that were launched by other processes.
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