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From "Alex Petrov (Jira)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-15404) Hint directory error affect cassandra process
Date Sun, 10 Nov 2019 11:10:00 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-15404?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alex Petrov updated CASSANDRA-15404:
------------------------------------
    Attachment: image.png

> Hint directory error  affect cassandra process 
> -----------------------------------------------
>
>                 Key: CASSANDRA-15404
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-15404
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Local/Config, Local/Other
>            Reporter: maxwellguo
>            Assignee: maxwellguo
>            Priority: Normal
>             Fix For: 4.x
>
>         Attachments: image.png, log.png
>
>
> I use the default config to do some test. I delete all hint directory by mistake,but
my cassandra process at last stoped .Latter I found that that is because the hint directory
use the data disk policy . 
> In our production cluster , hint and cache's dir are set separately and are not the same
with data dir . And we know that cassandra can use multi data directory to store data, the
hint's data operation should not affect the data and commitlog 's read or write . Also 
> hint/cache 's data loss do not affect the cassandra's  correct read .
> so I think hint's disk_faily_policy should be separately. So we can got three type of

> disk faily policy for : data disk , commitlog disk  and hint disk 。
>  I don't know if my suggestion is meaningful. If it is, I would like to take over the
issue。I'm also happy to receive new suggestions.
> I thinks this is a  bug , but now I can not modify the Type of the issue . The situation
is easy to reproduce .The data disk policy use stop . every time you delete the hint directory
will cause the daemon's stop.Stop NativeTransport server and gossip .
>  !log.png! 



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