[Mailman-Developers] locking and big lists

Tokio Kikuchi tkikuchi at is.kochi-u.ac.jp
Thu Oct 28 15:33:52 CEST 2004


> I have had a big problem with Mailman yesterday and today: two or three
> hours after I sent out my "big list" message (150 000 subscribers), Mailman
> started to spend all its time using CPU, for ages. In fact, it was the
> bounce runner that had started to send out the "probe" messages, one by one,
> making VirginRunner lock the list repeatedly, and holding the lock for 15s
> each time. Meanwhile the web admin interface was unreachable (for that
> list), and other scripts waited and failed.

You may want to disable VERP_PROBES by update your mailman to the latest
CVS. It was introduced in 2.1.5 but made optional for backward
compatibility. I remember you have updated around 16 Oct but CVS commit
was done 22 for this fix. (Remember you need specify Release_2_1-maint)

Tokio Kikuchi, tkikuchi@ is.kochi-u.ac.jp

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