None of those attachments made it through to the mailing list. On Thu, Mar 24, 2022 at 6:22 PM Pooja Pandey <pooja.pan...@asg.com.invalid> wrote:
> Attaching sample test program for simulated multithreading logging. > > > > *From:* Pooja Pandey <pooja.pan...@asg.com.INVALID> > *Sent:* Friday, March 25, 2022 4:37 AM > *To:* Log4J Users List <log4j-user@logging.apache.org> > *Subject:* Synchronization issue in multithreading (Losing huge data in > multithreading) with log4j 1.x bridge (2.17.2) > > > > **** External email: Verify sender before opening attachments or links **** > > > > Hi, > > > > In our application we have migrated from log4j1.x to log4j1.x bridge. With > Log4j1.x there was no issue with multithreading but with log4j 1.x bridge > we have noticed that in multithreading environment there is a huge data > loss while logging, however single thread works fine. I see that in > Category.java which Logger extends; many methods are not synchronized any > more in log4j1.x bridge however which were in case of log4j1.x. I suspect > this could be root cause of this multithreading problem. Please let me know > if you have any idea. > > > > I have compared Category.java which is a kind of core class for logging > functionality in Log4j1.x and Log4j1.x bridge and I see that many methods > which we are using were synchronized in log4j1.x but NOT in log4j1.x > bridge. I think this could be one of the root causes leading to this > problem. > > > > > > Log4j1.x: synchronized public Appender getAppender(String name) > > Log4j1.x bridge: public Appender getAppender(final String name) > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: log4j-user-unsubscr...@logging.apache.org > For additional commands, e-mail: log4j-user-h...@logging.apache.org
