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From "Phabricator (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5186) Add metrics to ThriftServer
Date Sun, 29 Jan 2012 04:52:10 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5186?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13195690#comment-13195690

Phabricator commented on HBASE-5186:

tedyu has commented on the revision "HBASE-5186 [jira] Add metrics to ThriftServer".

  src/main/java/org/apache/hadoop/hbase/thrift/ThriftMetrics.java:2 Year is not needed.
  src/main/java/org/apache/hadoop/hbase/thrift/ThriftMetrics.java:44 Would ThriftMetrics be
created for thrift2 ?
  Fine if you plan to do it in another JIRA.
  src/main/java/org/apache/hadoop/hbase/thrift/ThriftMetrics.java:53 As the code on line 102
shows, "hbase.thrift.slow.response.nano.second" may be a better name for this config.
  src/main/java/org/apache/hadoop/hbase/thrift/CallQueue.java:57 Would timeInQueue be a better
method name ?
  src/main/java/org/apache/hadoop/hbase/thrift/CallQueue.java:29 Does the call queue length
in metrics match 'total elements removed' in javadoc ?
  src/main/java/org/apache/hadoop/hbase/thrift/CallQueue.java:128 According to http://docs.oracle.com/javase/6/docs/api/java/util/concurrent/BlockingQueue.html#drainTo%28java.util.Collection%29:

  Attempts to drain a queue to itself result in IllegalArgumentException.

  We should maintain the above semantics.
  src/main/java/org/apache/hadoop/hbase/thrift/CallQueue.java:153 Can we add the new Call
object to underlyingQueue ?
  This way we don't need to create toBeAdded


> Add metrics to ThriftServer
> ---------------------------
>                 Key: HBASE-5186
>                 URL: https://issues.apache.org/jira/browse/HBASE-5186
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Scott Chen
>            Assignee: Scott Chen
>         Attachments: HBASE-5186.D1461.1.patch, HBASE-5186.D1461.2.patch, HBASE-5186.D1461.3.patch,
HBASE-5186.D1461.4.patch, HBASE-5186.D1461.5.patch
> It will be useful to have some metrics (queue length, waiting time, processing time ...)
similar to Hadoop RPC server. This allows us to monitor system health also provide a tool
to diagnose the problem where thrift calls are slow.

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