No it's not a typo. It's misleading example) dir1 and dir2 are pinned to rank 0, but FS and dir1,dir2 can't work without rank 1. rank 1 is used for something when I work with this dirs. ceph 16.2.13, metadata balancer and policy based balancing not used. ср, 20 нояб. 2024 г. в 16:33, Eugen Block <eblock@xxxxxx>: > Hi, > > > After pinning: > > setfattr -n ceph.dir.pin -v 0 /fs-mountpoint/dir1 > > setfattr -n ceph.dir.pin -v 0 /fs-mountpoint/dir2 > > is this a typo? If not, you did pin both directories to the same rank. > > Zitat von Александр Руденко <a.rudikk@xxxxxxxxx>: > > > Hi, > > > > I try to distribute all top level dirs in CephFS by different MDS ranks. > > I have two active MDS with rank *0* and *1 *and I have 2 top dirs like > > */dir1* and* /dir2*. > > > > After pinning: > > setfattr -n ceph.dir.pin -v 0 /fs-mountpoint/dir1 > > setfattr -n ceph.dir.pin -v 0 /fs-mountpoint/dir2 > > > > I can see next INOS and DNS distribution: > > RANK STATE MDS ACTIVITY DNS INOS DIRS CAPS > > 0 active c Reqs: 127 /s 12.6k 12.5k 333 505 > > 1 active b Reqs: 11 /s 21 24 19 1 > > > > When I write to dir1 I can see a small amount on Reqs: in rank 1. > > > > Events in journal of MDS with rank 1: > > cephfs-journal-tool --rank=fs1:1 event get list > > > > 2024-11-20T12:24:42.045056+0300 0xc5c1cb UPDATE: (scatter_writebehind) > > A2037D53 > > 2024-11-20T12:24:46.935934+0300 0xc5c629 SESSION: () > > 2024-11-20T12:24:47.192012+0300 0xc5c7cd UPDATE: (lock inest accounted > > scatter stat update) > > 2024-11-20T12:24:47.904717+0300 0xc5ca0b SESSION: () > > 2024-11-20T12:26:46.912719+0300 0xc5ca98 SESSION: () > > 2024-11-20T12:26:47.910806+0300 0xc5cc3c SESSION: () > > 2024-11-20T12:27:35.746239+0300 0xc5ccc9 SESSION: () > > 2024-11-20T12:28:46.923812+0300 0xc5ce63 SESSION: () > > 2024-11-20T12:28:47.903066+0300 0xc5d007 SESSION: () > > 2024-11-20T12:29:08.063326+0300 0xc5d094 EXPORT: () > > di1/A2037D53 > > 2024-11-20T12:30:46.909621+0300 0xc5d96f SESSION: () > > 2024-11-20T12:30:47.908050+0300 0xc5db13 SESSION: () > > 2024-11-20T12:32:46.907649+0300 0xc5dba0 SESSION: () > > 2024-11-20T12:32:47.905962+0300 0xc5dd44 SESSION: () > > 2024-11-20T12:34:44.349348+0300 0xc5ddd1 SESSIONS: () > > > > But the main problem, when I stop MDS rank 1 (without any kind of > standby) > > - FS hangs for all actions. > > Is this correct? Is it possible to completely exclude rank 1 from > > processing dir1 and not stop io when rank 1 goes down? > > _______________________________________________ > > ceph-users mailing list -- ceph-users@xxxxxxx > > To unsubscribe send an email to ceph-users-leave@xxxxxxx > > > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx > _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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