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From "Dmitriy Pavlov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-6552) The ability to set WAL history size in time units
Date Tue, 03 Oct 2017 15:15:00 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-6552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16189836#comment-16189836

Dmitriy Pavlov commented on IGNITE-6552:

In corner case we need to keep at least 1 finished checkpoint (we dont' count incompleted).
For more info please see

We can't keep less than 1 completed CP, because we will not be able to restore. We should
avoid applying timeout if we remove latest completed checkpoint.

> The ability to set WAL history size in time units
> -------------------------------------------------
>                 Key: IGNITE-6552
>                 URL: https://issues.apache.org/jira/browse/IGNITE-6552
>             Project: Ignite
>          Issue Type: Improvement
>          Components: persistence
>    Affects Versions: 2.2
>            Reporter: Vladislav Pyatkov
> We can to set size of WAL history in number of checkpoints.
> {code}
> org.apache.ignite.configuration.PersistentStoreConfiguration#setWalHistorySize
> {code}
> But it is not convenient fro end user. Nobody to say how many checkpoint to occur over
several minutes.
> I think, it will be better if we will have ability to set WAL history size in time units
(milliseconds for example).

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