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From Andrés de la Peña (JIRA) <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-13614) Batchlog replay throttle should be dynamically configurable with jmx and possibly nodetool
Date Fri, 16 Jun 2017 09:23:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-13614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16051651#comment-16051651
] 

Andrés de la Peña commented on CASSANDRA-13614:
-----------------------------------------------

Here is a patch making {{batchlog_replay_throttle_in_kb}} dynamically configurable through
JMX, and adding a new {{nodetool setbatchlogreplaythrottlekb}} command:

||[trunk|https://github.com/apache/cassandra/compare/trunk...adelapena:13614-trunk]|[utests|http://cassci.datastax.com/view/Dev/view/adelapena/job/adelapena-13614-trunk-testall/]|[dtests|http://cassci.datastax.com/view/Dev/view/adelapena/job/adelapena-13614-trunk-dtest/]|

[Here|https://github.com/riptano/cassandra-dtest/compare/master...adelapena:CASSANDRA-13614]
is a simple dtest.

> Batchlog replay throttle should be dynamically configurable with jmx and possibly nodetool
> ------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-13614
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13614
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Configuration, Materialized Views
>            Reporter: Andrés de la Peña
>            Assignee: Andrés de la Peña
>
> As it is said in [CASSANDRA-13162|https://issues.apache.org/jira/browse/CASSANDRA-13162],
batchlog replay can be excessively throttled with materialized views. The throttle is controlled
by the property {{batchlog_replay_throttle_in_kb}}, which is set by default to (only) 1024KB,
and it can't be configured dynamically. It would be useful to be able of modifying it dynamically
with JMX and possibly nodetool.



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