[
https://issues.apache.org/jira/browse/MAPREDUCE-4288?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13291555#comment-13291555
]
Devaraj K commented on MAPREDUCE-4288:
--------------------------------------
It is coming due to the hard-coded values in the below code,
{code:title=ResourceMgrDelegate.java|borderStyle=solid}
public ClusterMetrics getClusterMetrics() throws IOException,
InterruptedException {
GetClusterMetricsRequest request =
recordFactory.newRecordInstance(GetClusterMetricsRequest.class);
GetClusterMetricsResponse response =
applicationsManager.getClusterMetrics(request);
YarnClusterMetrics metrics = response.getClusterMetrics();
ClusterMetrics oldMetrics = new ClusterMetrics(1, 1, 1, 1, 1, 1,
metrics.getNumNodeManagers() * 10, metrics.getNumNodeManagers() * 2, 1,
metrics.getNumNodeManagers(), 0, 0);
return oldMetrics;
}
{code}
Here we cannot get runningMaps, runningReduces, occupiedMapSlots...etc from RM
because the yarn cluster is completely based on the resources and resource
usages.
It doesn't look good to show these hard-coded values always to the user when
they try to get cluster status using the JobClient.getClusterStatus() API.
Any thoughts on this?
> ClusterStatus.getMapTasks() and ClusterStatus.getReduceTasks() is giving one
> when no job is running
> ---------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-4288
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4288
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 2.0.0-alpha
> Reporter: Nishan Shetty
>
> When no job is running in the cluster invoke the ClusterStatus.getMapTasks()
> and ClusterStatus.getReduceTasks() API's
> Observed that these API's are returning one instead of zero(as no job is
> running)
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
