Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On 06/22/2012 09:38 PM, J.R. Lillard wrote: > Witnessed another bandwidth spike that slowed my stacked layer down. > > 10: cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate A r----- > ns:192538032 nr:0 dw:599650316 dr:1701817080 al:4481613 bm:43214 > lo:1 pe:2050 ua:0 ap:2049 ep:1 wo:f oos:0 > resync: used:0/61 hits:3274 misses:165 starving:0 dirty:0 > changed:165 > act_log: used:135/3833 hits:788561 misses:25007 starving:0 > dirty:28 changed:24979 You also increased al-extents for the lower-level DRBD device of your stacked resource? Regards, Andreas -- Need help with DRBD? http://www.hastexo.com/now > > On Fri, Jun 22, 2012 at 8:24 AM, J.R. Lillard <jlillard at ghfllc.com > <mailto:jlillard at ghfllc.com>> wrote: > > My starving count was pretty high. I maxed out my al-extents and > will see if that helps. Thanks. > > > On Fri, Jun 22, 2012 at 4:22 AM, Andreas Kurz <andreas at hastexo.com > <mailto:andreas at hastexo.com>> wrote: > > On 06/20/2012 11:51 PM, J.R. Lillard wrote: > > I have a lower-level setup on Protocol C and a stacked layer > of Protocol > > A going through Proxy over a WAN. There are times when my > disk activity > > spikes causing the Proxy buffers to fill up a bit. While this is > > happening the Pending count on my stacked resources goes up > and causes > > my access to those resources to slow down. Is this normal? I > thought > > with Protocol A as soon as my local write was finished things > would > > continue. > > You checked that you are not running out of activity log extents > for the > stacked resource? > > Do an: echo 1 >/sys/module/drbd/parameters/proc_details > > ... and have a look at "starving" counter in /proc/drbd ... should > ideally be 0 and definitely not increasing regularly. If it does, > increase the al-extents value for the stacked resource (max is > 3833 in > drbd 8.3 ... IIRC) > > Regards, > Andreas > > -- > Need help with DRBD? > http://www.hastexo.com/now > > > > > -- > > J.R. Lillard > > System / Network Admin > > Web Programmer > > Golden Heritage Foods > > 120 Santa Fe St. > > Hillsboro, KS 67063 > > > > > > > > _______________________________________________ > > drbd-user mailing list > > drbd-user at lists.linbit.com <mailto:drbd-user at lists.linbit.com> > > http://lists.linbit.com/mailman/listinfo/drbd-user > > > > > > > > > > _______________________________________________ > drbd-user mailing list > drbd-user at lists.linbit.com <mailto:drbd-user at lists.linbit.com> > http://lists.linbit.com/mailman/listinfo/drbd-user > > > > > -- > J.R. Lillard > System / Network Admin > Web Programmer > Golden Heritage Foods > 120 Santa Fe St. > Hillsboro, KS 67063 > > > > > -- > J.R. Lillard > System / Network Admin > Web Programmer > Golden Heritage Foods > 120 Santa Fe St. > Hillsboro, KS 67063 > > > > _______________________________________________ > drbd-user mailing list > drbd-user at lists.linbit.com > http://lists.linbit.com/mailman/listinfo/drbd-user > -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 222 bytes Desc: OpenPGP digital signature URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20120625/e16b6a66/attachment.pgp>