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From "Avinash Dhananjay (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LOG4J2-714) To Switch to Synchronous mode when there is an issue with PERSISTENT Database used in Flume Appender
Date Wed, 23 Jul 2014 07:06:38 GMT

     [ https://issues.apache.org/jira/browse/LOG4J2-714?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Avinash Dhananjay updated LOG4J2-714:

    Priority: Blocker  (was: Major)

Hi Ralph,

I have provided all the details. Please let me know your comments.


> To Switch to Synchronous mode when there is an issue with PERSISTENT Database used in
Flume Appender
> ----------------------------------------------------------------------------------------------------
>                 Key: LOG4J2-714
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-714
>             Project: Log4j 2
>          Issue Type: New Feature
>          Components: Flume Appender
>    Affects Versions: 2.1
>         Environment: Red Hat Linux 5
>            Reporter: Avinash Dhananjay
>            Priority: Blocker
>              Labels: features
>             Fix For: 2.1
>         Attachments: FlumeAppender.java, FlumePersistentAppenderTest.java, FlumePersistentManager.java,
>   Original Estimate: 336h
>  Remaining Estimate: 336h
> Hi Ralph,
> Hope your doing fine. Bhargava and I have come up with one more change along with the
changes for the fix. Can you please let us know if this design is feasible and acceptable
to the log4j flume appender community :
> To skip sending events when the environment (Berkley DB or NFS) is down. To create a
new database environment once the environment is back. We will loose the events in this case
when the environment is down. — I have made code changes for this issue. I am finding it
hard to recreate the issue. I am currently working on the unit test cases.
> To switch to synchronous transfer of events when there is a problem with the database/NFS.
This change is to prevent the loss of events. Once the environment is back, the code switches
to Asynchronous mode. Please let us know your opinion on this.
> Regards,
> Avinash

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