Wei Deng created CASSANDRA-10044:
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Summary: 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
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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