Varnish Lurker is getting slower / Ban lists keeps increasing
olivier.hanesse at gmail.com
Wed Aug 30 11:44:50 CEST 2017
Last night after your reply, I put a ban_cutoff value of 18500 according to
the definition (50ms of latency, 370K/s ban.lurker.tested) (I've restarted
varnish, "varnishadm param.show ban_cutoff" shows the right value)
This morning, nothing has changed : ban lists is increasing (well over
2017-08-30 8:47 GMT+02:00 Olivier Hanesse <olivier.hanesse at gmail.com>:
> Hello Dridi,
> Thanks for your reply.
> I must admit I didn't understand perfectly the description of this option.
> What will happen when the ban list hits the size of bans defined in
> ban_cutoff value ?
> Will the ban list be truncated and all the previous (oldest ?) bans will
> be simply deleted without purging the cache ?
> Or will varnish suspend other regular requests (increasing the lurker
> priority thread , something like that ?) until the ban list size is under
> this value ?
> 2017-08-29 19:04 GMT+02:00 Dridi Boukelmoune <dridi at varni.sh>:
>> > I've already tried to change (increase/decrease) both
>> "ban_lurker_batch" and
>> > "ban_lurker_sleep" parameters. Same things.
>> > I don't know how I can get more lurker logs to debug this.
>> > Is there a way to make it more aggressive ?
>> > Any ideas ?
>> Did you look at the ban_cutoff parameter?
>> I think it landed in the 5.1 series.
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