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Date: Fri, 16 Jun 2017 09:23:00 +0000 (UTC)
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Subject: [jira] [Commented] (CASSANDRA-13614) Batchlog replay throttle
 should be dynamically configurable with jmx and possibly nodetool
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archived-at: Fri, 16 Jun 2017 09:23:08 -0000


    [ https://issues.apache.org/jira/browse/CASSANDRA-13614?page=3Dcom.atla=
ssian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=
=3D16051651#comment-16051651 ]=20

Andr=C3=A9s de la Pe=C3=B1a commented on CASSANDRA-13614:
-----------------------------------------------

Here is a patch making {{batchlog_replay_throttle_in_kb}} dynamically confi=
gurable through JMX, and adding a new {{nodetool setbatchlogreplaythrottlek=
b}} command:

||[trunk|https://github.com/apache/cassandra/compare/trunk...adelapena:1361=
4-trunk]|[utests|http://cassci.datastax.com/view/Dev/view/adelapena/job/ade=
lapena-13614-trunk-testall/]|[dtests|http://cassci.datastax.com/view/Dev/vi=
ew/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-1361=
4
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Configuration, Materialized Views
>            Reporter: Andr=C3=A9s de la Pe=C3=B1a
>            Assignee: Andr=C3=A9s de la Pe=C3=B1a
>
> As it is said in [CASSANDRA-13162|https://issues.apache.org/jira/browse/C=
ASSANDRA-13162], batchlog replay can be excessively throttled with material=
ized views. The throttle is controlled by the property {{batchlog_replay_th=
rottle_in_kb}}, which is set by default to (only) 1024KB, and it can't be c=
onfigured dynamically. It would be useful to be able of modifying it dynami=
cally with JMX and possibly nodetool.


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