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From "Jim Witschey (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-10044) Native-Transport-Requests is missing from the nodetool tpstats output in Cassandra 2.1
Date Tue, 15 Sep 2015 21:15:46 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-10044?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jim Witschey updated CASSANDRA-10044:
-------------------------------------
    Reproduced In: 2.1.9

> Native-Transport-Requests is missing from the nodetool tpstats output in Cassandra 2.1
> --------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-10044
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10044
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Wei Deng
>            Priority: Minor
>              Labels: patch
>         Attachments: 0001-Add-the-missing-Native-Transport-Requests-in-tpstats.patch
>
>
> It appears that in Cassandra 2.1 the output of "nodetool tpstats" has changed a bit,
and Native-Transport-Requests is removed. This is a useful piece of statistics information
to understand the pressure at the coordinator. Even though people can still use JMX or metrics
reporter to get the same information, it is not as convenient as before (in Cassandra 2.0
this is exposed through tpstats).
> Looking at the code https://github.com/apache/cassandra/blob/cassandra-2.1/src/java/org/apache/cassandra/tools/NodeProbe.java#L1369-L1371,
this appears to be caused by some restructure in the JMX metrics, and can be easily patched
by adding "org.apache.cassandra.transport:type=*" into the list of thread pools we print out.
> I understand Sam filed another JIRA https://issues.apache.org/jira/browse/CASSANDRA-10018
just a few days ago. However, that is for versions 2.2 and beyond. The patch here is to specifically
address a missing information in Cassandra 2.1.



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