[jira] Resolved: (DERBY-3567) AsynchronousLogShipper#forceFlush should time out

["Øystein Grøvlen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DERBY-3567?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Øystein Grøvlen resolved DERBY-3567.
------------------------------------

       Resolution: Fixed
    Fix Version/s: 10.5.0.0
                   10.4.1.0
       Derby Info:   (was: [Patch Available])

Committed to trunk at revision 644716.
Committed to 10.4 branch at revision 644733.

> AsynchronousLogShipper#forceFlush should time out
> -------------------------------------------------
>
>                 Key: DERBY-3567
>                 URL: https://issues.apache.org/jira/browse/DERBY-3567
>             Project: Derby
>          Issue Type: Bug
>          Components: Replication
>    Affects Versions: 10.4.0.0, 10.5.0.0
>            Reporter: Jørgen Løland
>            Assignee: Jørgen Løland
>             Fix For: 10.4.1.0, 10.5.0.0
>
>         Attachments: derby-3567-1a.diff, derby-3567-1a.stat, derby-3567-1b.diff, derby-3567-1c.diff
>
>
> If the network connection to the slave is lost, ObjectOutputStream#writeObject may be blocked for 2 minutes before failing (not configurable TCP property). 
> Currently, ALS#forceFlush sends a chunk of log to the slave using the client thread. The client thread cannot be blocked for 2 minutes before giving up. Rather, it should notify the log shipper that it has to send log immediately, and then wait for a short while (until notified or e.g. maximum 5 seconds). If the log shipper has not been able to empty some space in the log buffer by then, replication should be stopped.

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