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Posted to issues@hbase.apache.org by "Hudson (JIRA)" <ji...@apache.org> on 2017/09/30 03:40:03 UTC
[jira] [Commented] (HBASE-18559) Add histogram to MetricsConnection
to track concurrent calls per server
[ https://issues.apache.org/jira/browse/HBASE-18559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16186858#comment-16186858 ]
Hudson commented on HBASE-18559:
--------------------------------
FAILURE: Integrated in Jenkins build HBase-Trunk_matrix #3802 (See [https://builds.apache.org/job/HBase-Trunk_matrix/3802/])
HBASE-18559 Add histogram to MetricsConnection to track concurrent calls (apurtell: rev c835dcc7e70cc13415e60198ed4fb9c0e7339ac4)
* (edit) hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/AbstractRpcClient.java
* (edit) hbase-client/src/main/java/org/apache/hadoop/hbase/client/MetricsConnection.java
> Add histogram to MetricsConnection to track concurrent calls per server
> -----------------------------------------------------------------------
>
> Key: HBASE-18559
> URL: https://issues.apache.org/jira/browse/HBASE-18559
> Project: HBase
> Issue Type: Improvement
> Components: Client
> Reporter: Robert Yokota
> Assignee: Robert Yokota
> Priority: Minor
> Fix For: 2.0.0, 3.0.0, 1.4.0, 1.5.0
>
> Attachments: HBASE-18559.master.001.patch
>
>
> HBASE-16388 introduced a new configuration setting "hbase.client.perserver.requests.threshold " to deal with slow region servers. I have back-ported the code for the new config setting to our environment, but I don't feel comfortable setting it in production without visibility into how the number of concurrent calls per server varies (especially the current high water mark or max in production when the cluster is healthy).
> It is straightforward to pass the value for the concurrent calls per server to a new histogram in MetricsConnection. I will attach a patch that I am using to gain a better understanding of how setting "hbase.client.perserver.requests.threshold" will affect our production environment.
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