perl with threading enabled: bad?

Steve Freegard steve.freegard at
Thu Apr 3 17:30:53 IST 2008

Ryan Bingham wrote:
> Hi All,
> I checked the archives but couldn't find the answer to this question, so 
> I apologize if it has be previously addressed.
> We recently upgraded from MailScanner 4.56.8 to 4.68.8.  Everything went 
> well and we're not experiencing any problems, but I did have a question 
> about a comment Julian makes during the install script.  At one point it 
> says:
> *** You are using a perl configured with threading enabled.
> *** You should be aware that using multiple threads is
> *** not recommended for production environments.
> We are running perl v5.8.8 on CentOS 5.1 and threading is enabled (we 
> see "usethreads=define" when we run perl -V).  Is this bad?  Is there a 
> way to turn it off?

That message comes from the DBI module when it is being built.  You can 
safely ignore it.

Neither MailScanner or SA use threads.


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