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https://issues.apache.org/jira/browse/LOG4J2-407?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nick Williams resolved LOG4J2-407.
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Resolution: Fixed
Fix Version/s: 2.0-rc1
Fixed with r1565858 and r1565878. The database appenders now connect to the
database (i.e., borrow from the connection pool) and begin a transaction on
every flush or every non-buffered {{writeInternal}}, then commit and disconnect
(i.e., return to pool) at the end of the flush or non-buffered
{{writeInternal}}.
Note also that the {{<DriverManager...>}} connection source plugin is no longer
available. It was removed because it was unsafe and didn't support connection
pooling. Please use the {{<DataSource...>}} or {{<ConnectionFactory...>}}
connection source plugins, instead.
> JDBCAppender cannot recover from loss of database connectivity
> --------------------------------------------------------------
>
> Key: LOG4J2-407
> URL: https://issues.apache.org/jira/browse/LOG4J2-407
> Project: Log4j 2
> Issue Type: Bug
> Components: Appenders
> Affects Versions: 2.0-beta9
> Reporter: Michael Kloster
> Assignee: Nick Williams
> Fix For: 2.0-rc1
>
>
> The JDBCAppender holds a single database connection for all its logging. If
> that database connection is closed, it does not attempt to make a new
> connection.
> Many connection pools automatically close connections after a certain amount
> of inactivity. (This can be worked around by properly configuring a pool).
> Database connectivity issues are also common enough that a long running
> application may experience temporary network issues. When the network comes
> back online, the logging will not resume.
> I've been meaning to submit a patch for this, but I haven't gotten to it.
> Since I saw that you are looking to come out of beta soon, I thought I would
> log this issue in case someone else has time to write the patch before I get
> to it.
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