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https://issues.apache.org/jira/browse/MAPREDUCE-3360?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13182656#comment-13182656
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Thomas Graves commented on MAPREDUCE-3360:
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A couple of comments:
RMWebServices.java
- minor nit: I would prefer the web services to output empty string rather then
"N/A" for the nodeHttpAddress. It seems more programmatic and I tried to make
that change consistent throughout.
- I think you can use the nid.getHost() instead of doing the split on ":" to
get the hostName.
MetricsOverviewTable.java
- I think we need to change ClusterMetricsInfo.java to match if this field is
Active instead of Total. It has a field totalNodes which appears to really be
active nodes. So I think we should add a new activeNodes field and then make
totalNodes the true total nodes of the cluster -> active + rebooted + lost +
decommissioned.
ClusterMetrics.java
- do we want to change the heading output to match active nodes?
@Metric("# of NMs") MutableGaugeInt numNMs;
> Provide information about lost nodes in the UI.
> -----------------------------------------------
>
> Key: MAPREDUCE-3360
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3360
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: mrv2
> Affects Versions: 0.23.0
> Environment: NA
> Reporter: Bhallamudi Venkata Siva Kamesh
> Assignee: Bhallamudi Venkata Siva Kamesh
> Priority: Critical
> Attachments: LostNodes.png, MAPREDUCE-3360-1.patch,
> MAPREDUCE-3360-2.patch, MAPREDUCE-3360-3.patch, MAPREDUCE-3360-4.patch,
> MAPREDUCE-3360-5.patch, MAPREDUCE-3360.patch, lostNodes.png
>
>
> Currently there is no information provided about *lost nodes*. Provide
> information in the UI.
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