hadoop-zookeeper-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (ZOOKEEPER-744) Add monitoring four-letter word
Date Fri, 25 Jun 2010 23:33:49 GMT

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12882759#action_12882759
] 

Hadoop QA commented on ZOOKEEPER-744:
-------------------------------------

+1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12448091/ZOOKEEPER-744.patch
  against trunk revision 958096.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 12 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    +1 core tests.  The patch passed core unit tests.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/122/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/122/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/122/console

This message is automatically generated.

> Add monitoring four-letter word
> -------------------------------
>
>                 Key: ZOOKEEPER-744
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-744
>             Project: Zookeeper
>          Issue Type: New Feature
>          Components: server
>    Affects Versions: 3.4.0
>            Reporter: Travis Crawford
>            Assignee: Andrei Savu
>             Fix For: 3.4.0
>
>         Attachments: zk-ganglia.png, ZOOKEEPER-744.patch, ZOOKEEPER-744.patch, ZOOKEEPER-744.patch,
ZOOKEEPER-744.patch
>
>
> Filing a feature request based on a zookeeper-user discussion.
> Zookeeper should have a new four-letter word that returns key-value pairs appropriate
for importing to a monitoring system (such as Ganglia which has a large installed base)
> This command should initially export the following:
> (a) Count of instances in the ensemble.
> (b) Count of up-to-date instances in the ensemble.
> But be designed such that in the future additional data can be added. For example, the
output could define the statistic in a comment, then print a key "space character" value line:
> """
> # Total number of instances in the ensemble
> zk_ensemble_instances_total 5
> # Number of instances currently participating in the quorum.
> zk_ensemble_instances_active 4
> """
> From the mailing list:
> """
> Date: Mon, 19 Apr 2010 12:10:44 -0700
> From: Patrick Hunt <phunt@apache.org>
> To: zookeeper-user@hadoop.apache.org
> Subject: Re: Recovery issue - how to debug?
> On 04/19/2010 11:55 AM, Travis Crawford wrote:
> > It would be a lot easier from the operations perspective if the leader
> > explicitly published some health stats:
> >
> > (a) Count of instances in the ensemble.
> > (b) Count of up-to-date instances in the ensemble.
> >
> > This would greatly simplify monitoring&  alerting - when an instance
> > falls behind one could configure their monitoring system to let
> > someone know and take a look at the logs.
> That's a great idea. Please enter a JIRA for this - a new 4 letter word 
> and JMX support. It would also be a great starter project for someone 
> interested in becoming more familiar with the server code.
> Patrick
> """

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message