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From "Anubhav Kale (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-10907) Nodetool snapshot should provide an option to skip flushing
Date Mon, 21 Dec 2015 17:51:46 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-10907?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15066788#comment-15066788
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Anubhav Kale commented on CASSANDRA-10907:
------------------------------------------

We plan to move backups outside the nodes. So, when a snapshot is taken it would be ideal
for it to be fast (thus not flush) so that it can be moved out as quickly as possible. We
have enough replication so we can tolerate the data loss because the memtable wasn't flushed.

Do you feel strongly against it ?

> Nodetool snapshot should provide an option to skip flushing
> -----------------------------------------------------------
>
>                 Key: CASSANDRA-10907
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10907
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Configuration
>         Environment: PROD
>            Reporter: Anubhav Kale
>            Priority: Minor
>              Labels: lhf
>
> For some practical scenarios, it doesn't matter if the data is flushed to disk before
taking a snapshot. However, it's better to save some flushing time to make snapshot process
quick.
> As such, it will be a good idea to provide this option to snapshot command. The wiring
from nodetool to MBean to VerbHandler should be easy. 
> I can provide a patch if this makes sense.



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