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From "mck (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-11720) Changing `max_hint_window_in_ms` at runtime
Date Wed, 03 May 2017 02:17:05 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-11720?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15994171#comment-15994171
] 

mck commented on CASSANDRA-11720:
---------------------------------

Patch ready.
|| Branch 	|| Testall 	|| Dtest ||
| [trunk|https://github.com/michaelsembwever/cassandra/commit/f2344741a560c44538e88fb02cffa87f74445c9d]
	| [testall|https://circleci.com/gh/michaelsembwever/cassandra/tree/mck%2Ftrunk_11720] 	|
[dtest|https://builds.apache.org/view/A-D/view/Cassandra/job/Cassandra-devbranch-dtest/39/]
|


(the dtests will take a while, and won't include the new [dtest|https://github.com/michaelsembwever/cassandra-dtest/commit/f5267617cb23b8faa968ca2a11ccf49d0725a81d])

> Changing `max_hint_window_in_ms` at runtime
> -------------------------------------------
>
>                 Key: CASSANDRA-11720
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11720
>             Project: Cassandra
>          Issue Type: Wish
>          Components: Coordination
>            Reporter: Jens Rantil
>            Assignee: Hiroyuki Nishi
>            Priority: Minor
>              Labels: lhf
>             Fix For: 4.x
>
>         Attachments: CASSANDRA-11720-trunk.patch
>
>
> Scenario: A larger node (in terms of data it holds) goes down. You realize that it will
take slightly more than `max_hint_window_in_ms` to fix it. You have a the disk space to store
some additional hints.
> Proposal: Support changing `max_hint_window_in_ms` at runtime. The change doesn't have
to be persisted somewhere. I'm thinking similar to changing the `compactionthroughput` etc.
using `nodetool`.
> Workaround: Change the value in the configuration file and do a rolling restart of all
the nodes.



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