Spence, Ian (ELS-CAM) wrote:

Hello,

We are writing a Websphere based j2ee app.

We are attempting to integrate Log4j as a logging mechanism.

A concern we have is over file contention, especially where multiple
instances of a session bean are attempting to Log a message via log4j. Say 5
bean instances are active and all try to log at the same time, will this
create a bottleneck on i/o ? Or does Log4j handle this contention? Does
log4j buffer the incoming messages and process the file i/o in a timely
manner?


Normally this shouldn't impose any problems. We use log4j in a medium-sized (by US standards) production site without problems. Use buffering for more optimal usage - and do *not* use location patterns (telling you which sourcefile and location) for production - and you should be OK.


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