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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4057) Implement HBase version of "show processlist"
Date Sat, 09 Jul 2011 03:46:16 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4057?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13062307#comment-13062307

stack commented on HBASE-4057:

@Andrew Would it make sense to enable the REST server always?  We have a container, jetty,
running out on each regionserver already.  We have the servlets mounted hard at /.  How hard
would it be to add REST webapp mounting it at /rest?  I agree the lads should add an RPC that
exposes the regionserver processlist for the likes of the shell to pull on but if the REST
server was running always, they could run REST queries from whatever the language de jour
to get their process listing (Doesn't the REST server allow you to specify JSON or protocol
buffers or base64 already?).

> Implement HBase version of "show processlist"
> ---------------------------------------------
>                 Key: HBASE-4057
>                 URL: https://issues.apache.org/jira/browse/HBASE-4057
>             Project: HBase
>          Issue Type: New Feature
>          Components: client, regionserver
>            Reporter: Nicolas Spiegelberg
>            Assignee: Riley Patterson
> One of the features that our DBAs use for MySQL analysis is "show processlist", which
gives application-level stats about the RPC threads.  Right now, we use jstack but that is
very core-developer-centric.  We need to create a similar tool that DBA/Ops/AppDevs can use.

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