[infinispan-issues] [JBoss JIRA] Commented: (ISPN-979) FileCacheStore should use fsync() when writing to disk

[Galder Zamarreño (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-979?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12607757#comment-12607757 ] 

Galder Zamarreño commented on ISPN-979:
---------------------------------------

This could be one way of implementing it with minimal changes:

- Sync per write: This is what we have today, open an FileOutputStream, write + flush whenever we update a bucket.
- No sync: Wrap the FOS around a BufferedOutputStream and when the buffer gets filled it, let it do the flushing.
- Periodic sync: Still wrap a FOS around a BOS, but then, apart from letting it flush when the buffer fills up, we have a way to flush it periodically, probably with some scheduled executor.

> FileCacheStore should use fsync() when writing to disk
> ------------------------------------------------------
>
>                 Key: ISPN-979
>                 URL: https://issues.jboss.org/browse/ISPN-979
>             Project: Infinispan
>          Issue Type: Feature Request
>          Components: Listeners
>    Affects Versions: 4.2.1.CR1
>            Reporter: Manik Surtani
>            Assignee: Galder Zamarreño
>             Fix For: 5.0.0.CR5, 5.0.0.FINAL
>
>
> This would be an optional flag, offering one of 3 modes (no sync, periodic sync - e.g., every second - and sync per write).

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