I am noticing i have many entries in `ceph osd blacklist ls` and dirlisting
works again after i removed all entries.
What can cause this and is there any way to disable blacklisting ?
On Tue, Oct 29, 2019 at 11:56 AM Kári Bertilsson <karibertils(a)gmail.com>
wrote:
The file system was created on luminous and the
problems started after
upgrading from luminous to nautilus.
All CephFS configuration should be pretty much default except i enabled
snapshots which was disabled by default on luminous.
On Tue, Oct 29, 2019 at 11:48 AM Kári Bertilsson <karibertils(a)gmail.com>
wrote:
> All clients are using the kernel client on proxmox kernel
> version 5.0.21-3-pve.
>
> The mds logs are not showing anything interesting and have very little in
> them except for the restarts, maybe i need to increase debug level ?
>
> On Tue, Oct 29, 2019 at 6:33 AM Lars Täuber <taeuber(a)bbaw.de> wrote:
>
>> Hi!
>>
>> What kind of client (kernel vs. FUSE) do you use?
>> I experience a lot of the following problems with the most recent ubuntu
>> 18.04.3 kernel 4.15.0-66-generic :
>> kernel: [260144.644232] cache_from_obj: Wrong slab cache. inode_cache
>> but object is from ceph_inode_info
>>
>> Other clients with older kernels (e.g. 4.15.0-47-generic) work without
>> interruption on the same CephFS.
>>
>>
>> Lars
>>
>>
>> Mon, 28 Oct 2019 22:10:25 +0000
>> Kári Bertilsson <karibertils(a)gmail.com> ==> Patrick Donnelly <
>> pdonnell(a)redhat.com> :
>> > Any ideas or tips on how to debug further ?
>> >
>> > On Mon, Oct 28, 2019 at 7:17 PM Kári Bertilsson <karibertils(a)gmail.com
>> >
>> > wrote:
>> >
>> > > Hello Patrick,
>> > >
>> > > Here is output from those commands
>> > >
https://pastebin.com/yUmuQuYj
>> > >
>> > > 5 clients have the file system mounted, but only 2 of them have most
>> of
>> > > the activity.
>> > >
>> > >
>> > >
>> > > On Mon, Oct 28, 2019 at 6:54 PM Patrick Donnelly <
>> pdonnell(a)redhat.com>
>> > > wrote:
>> > >
>> > >> Hello Kári,
>> > >>
>> > >> On Mon, Oct 28, 2019 at 11:14 AM Kári Bertilsson <
>> karibertils(a)gmail.com>
>> > >> wrote:
>> > >> > This seems to happen mostly when listing folders containing
10k+
>> > >> folders.
>> > >> >
>> > >> > The dirlisting hangs indefinitely or until i restart the
active
>> MDS and
>> > >> then the hanging "ls" command will finish running.
>> > >> >
>> > >> > Every time restarting the active MDS fixes the problem for a
>> while.
>> > >>
>> > >> Please share details about your cluster. `fs dump`, `ceph status`,
>> and
>> > >> `ceph versions`. How many clients are using the file system?
>> > >>
>> > >> --
>> > >> Patrick Donnelly, Ph.D.
>> > >> He / Him / His
>> > >> Senior Software Engineer
>> > >> Red Hat Sunnyvale, CA
>> > >> GPG: 19F28A586F808C2402351B93C3301A3E258DD79D
>> > >>
>> > >>
>>
>>
>> --
>> Informationstechnologie
>> Berlin-Brandenburgische Akademie der Wissenschaften
>> Jägerstraße 22-23 10117 Berlin
>> Tel.: +49 30 20370-352
http://www.bbaw.de
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>>
>