[MTOS-dev] Check your perl module versions now

[Byrne Reese]

Jay - would you mind adding that to the release notes within the mt.org
documentation.

Release notes are maintained in the list of appendices on the site.


On 4/22/08 1:18 PM, "Jay Allen" <jay at endevver.com> wrote:

> Hi all,
> 
> Yesterday I observed a pretty significant memory leak occurring on
> movabletype.org when the run-periodic-tasks framework was being used
> in daemon mode to initiate background publishing.  Reed and Su
> reminded me of Ogawa-san bootstrapping script[1] which uses
> Devel::Leak::Object to monitor all objects for memory leaks.  So, I
> used the same methodology on RPT as Hirotaka did on mt.cgi.  What I
> found was not what I expected: DBI had a massive memory leak.
> 
> I immediately checked the version and found it to be the same one
> available to 'yum': 1.48  Unfortunately, that is NOT the latest in
> CPAN[2] (1.604) and in fact v1.48 was release more than THREE YEARS
> AGO.  Once I installed the new version, RPT worked perfectly without a
> single memory leak.   You should make sure that you are running AT
> LEAST version 1.52[3] since that was the most recent version
> mentioning fixes for memory leaks.
> 
> Along the way, however, I found other modules which were outdated on
> yum and upgraded those as well.  It goes without saying but I'll say
> it anyway: Keeping your infrastructure upgraded will pay off major
> short-term and long-term gains.  Do not ignore it.