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From "Suresh Srinivas (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-6599) Split RPC metrics into summary and detailed metrics
Date Sat, 24 Apr 2010 02:32:03 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6599?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12860466#action_12860466
] 

Suresh Srinivas commented on HADOOP-6599:
-----------------------------------------

Currently RPC metrics has the following information:

Context name *rpc* and record name *metrics* has the following:
||Type||Name of the metrics||Description||
|MetricsTimeVaryingLong|ReceivedBytes|Number of bytes in RPC requests received in reporting
period|
|MetricsTimeVaryingLong|SentBytes|Number of bytes sent RPC response in reporting period|
|MetricsTimeVaryingRate|RpcQueueTime|Time a request spent in queue and rate at which RPC requests
are received|
|rpcProcessingTime|RpcProcessingTime|Number of RPC request processed and time for processing
it|
|MetricsIntValue|NumOpenConnections|Number of open connections to the RPC server|
|MetricsIntValue|callQueueLen|Length of the RPC queue|
|MetricsTimeVaryingInt |rpcAuthenticationFailures|Number of authentication failures at the
RPC layer|
|MetricsTimeVaryingInt |rpcAuthenticationSuccesses|Number of authentication success at the
RPC layer|
|MetricsTimeVaryingInt |rpcAuthorizationFailures|Number of authorization failure at the RPC
layer|

|MetricsTimeVaryingInt |rpcAuthorizationSuccesses|Number of authorization success at the RPC
layer|


Context name *rpc* and record name *detailed-metrics* has metrics for each RPC method of type
and name set to RPC method name.



> Split RPC metrics into summary and detailed metrics
> ---------------------------------------------------
>
>                 Key: HADOOP-6599
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6599
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Suresh Srinivas
>            Assignee: Suresh Srinivas
>         Attachments: hadoop-6599.1.patch, hadoop-6599.2.patch, hadoop-6599.2.patch, hadoop-6599.patch,
hadoop-6599.patch, hadoop-6599.rel20.patch
>
>
> Currently RPC metrics tracks items that provides summary of RPC usage along with more
detailed per method statistics that tracks number of method calls made, time spent on that
call. Combining both summary and detailed together results in large metrics report which metrics
collection systems may not handle. Proposal is to split the metrics into summary and detailed
metrics.

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