[logback-dev] [JIRA] Resolved: (LBCORE-58) AppenderBase doAppend is synchronized causing significant performance problems when calling appenders.

[Ceki Gulcu (JIRA)]

     [ http://jira.qos.ch/browse/LBCORE-58?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ceki Gulcu resolved LBCORE-58.
------------------------------

    Fix Version/s: 0.9.14
       Resolution: Fixed

For expediency, I am marking it fixed in 0.9.14. However, in reality, this bug was fixed in an earlier logback version.

> AppenderBase doAppend is synchronized causing significant performance problems when calling appenders.
> ------------------------------------------------------------------------------------------------------
>
>                 Key: LBCORE-58
>                 URL: http://jira.qos.ch/browse/LBCORE-58
>             Project: logback-core
>          Issue Type: Sub-task
>          Components: Appender
>    Affects Versions: 0.9.10
>         Environment: All
>            Reporter: Ralph Goers
>            Assignee: Ceki Gulcu
>             Fix For: 0.9.14
>
>         Attachments: appenderlock.txt
>
>
> Slow appenders cause Logback to be a significant bottleneck in the system.  AppenderBase doAppend is synchronized to allow Appenders to be threadsafe. This is an extremely poor way to accomplish that. Many Appenders are slow since they are dealing with I/O of some kind but may be thread safe. Where they are not they should deal with the issue at the smallest granularity possible. AppenderBase must be changed to not be synchronized and any Appenders that are not thread safe should be modified appropriately.

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://jira.qos.ch/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira