[jira] [Resolved] (LOGCXX-306) FileAppender --- very aggressive default file locking on Windows since moving to APR

["Thorsten Schöning (JIRA)" <lo...@logging.apache.org>]

     [ https://issues.apache.org/jira/browse/LOGCXX-306?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thorsten Schöning resolved LOGCXX-306.
--------------------------------------

    Resolution: Won't Fix

This seems to be a problem of APR, I don't see how one get provide a share mode like that for CreateFile under Win32 to apr_file_open. But looking at the source of the function the following share mode is already applied and should be good enough for practical use:

DWORD sharemode = FILE_SHARE_READ | FILE_SHARE_WRITE;

http://svn.apache.org/repos/asf/apr/apr/trunk/file_io/win32/open.c

> FileAppender --- very aggressive default file locking on Windows since moving to APR
> ------------------------------------------------------------------------------------
>
>                 Key: LOGCXX-306
>                 URL: https://issues.apache.org/jira/browse/LOGCXX-306
>             Project: Log4cxx
>          Issue Type: Improvement
>          Components: Appender
>    Affects Versions: 0.10.0
>         Environment: Windows XP SP2 on Intel Xeon
>            Reporter: Allan Erskine
>            Assignee: Curt Arnold
>            Priority: Minor
>
> Since moving to APR, the file locking (or sharing attributes perhaps?) of FileAppender have become very aggressive.
> The end result is that when my application is logging intensively, I am unable to tail, copy, or grep the log file (it generates a permissions error!).
> In production environments, this can be a clear no-no --- perhaps this could be made configurable (eg if there were performance reasons behind the current way of doing things)



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