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From "Kristian Waagan (JIRA)" <j...@apache.org>
Subject [jira] Closed: (DERBY-3567) AsynchronousLogShipper#forceFlush should time out
Date Wed, 02 Jun 2010 11:13:40 GMT

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

Kristian Waagan closed DERBY-3567.
----------------------------------


Closing issue.

> 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: 10.4.1.3, 10.5.1.1
>            Reporter: Jørgen Løland
>            Assignee: Jørgen Løland
>             Fix For: 10.4.1.3, 10.5.1.1
>
>         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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