Thank you for your assessment, Jayme.
I'll collect the interesting facts and do so.
Chris
On 03.02.20 18:58, Jayme wrote:
Ah, the bug I'm referring to may only apply to replica 3 gluster. You
appear to be using an arbiter. It sounds like you may need to file a bug
for this one
On Mon, Feb 3, 2020 at 12:05 PM Christoph Köhler
<[email protected] <mailto:[email protected]>> wrote:
Hello Jayme,
the gluster-config is this:
gluster volume info gluvol3
Volume Name: gluvol3
Type: Replicate
Volume ID: 8172ebea-c118-424a-a407-50b2fd87e372
Status: Started
Snapshot Count: 0
Number of Bricks: 1 x (2 + 1) = 3
Transport-type: tcp
Bricks:
Brick1: glusrv01:/gluster/p1/brick1
Brick2: glusrv02:/gluster/p1/brick1
Brick3: glusrv03:/gluster/p1/brick1 (arbiter)
Options Reconfigured:
performance.client-io-threads: off
nfs.disable: on
transport.address-family: inet
performance.quick-read: off
performance.read-ahead: off
performance.io-cache: off
performance.low-prio-threads: 32
network.remote-dio: off
cluster.eager-lock: enable
cluster.quorum-type: auto
cluster.server-quorum-type: server
cluster.data-self-heal-algorithm: full
cluster.locking-scheme: granular
cluster.shd-max-threads: 8
cluster.shd-wait-qlength: 10000
features.shard: on
user.cifs: off
storage.owner-uid: 36
storage.owner-gid: 36
performance.strict-o-direct: on
cluster.granular-entry-heal: enable
network.ping-timeout: 8
auth.allow: 192.168.11.*
client.event-threads: 4
cluster.background-self-heal-count: 128
cluster.heal-timeout: 60
cluster.heal-wait-queue-length: 1280
features.shard-block-size: 256MB
performance.cache-size: 4096MB
server.event-threads: 4
I really do not know what to do new...
Chris
On 03.02.20 16:53, Jayme wrote:
> Chris, what is the storage configuration? I was under the
impression
> that there was a bug preventing snapshots from working when using
> libgfapi on gluster replica configurations. This is one of the main
> reasons why I have been unable to implement libgfapi.
>
> On Mon, Feb 3, 2020 at 10:53 AM Christoph Köhler
> <[email protected]
<mailto:[email protected]>
<mailto:[email protected]
<mailto:[email protected]>>> wrote:
>
> Hi,
>
> since we have updated to 4.3.7 and another cluster to 4.3.8
snapshots
> are not longer possible. In previous version all went well...
>
> ° libGfApi enabled
> ° gluster 6.7.1 on gluster-server and client
> ° libvirt-4.5.0-23.el7_7.3
>
> vdsm on a given node says:
>
> jsonrpc/2) [vds] prepared volume path:
>
gluvol3/e54d835a-d8a5-44ae-8e17-fcba1c54e46f/images/1f43916a-bbf2-447b-b17d-ba22d4ec8c90/0e56d498-11d2-4f35-b781-a2e06d286eb8
>
> (clientIF:510)
>
> (jsonrpc/2) [virt.vm]
(vmId='acdc31b5-082b-4a68-b586-02354a7fdd73')
> <?xml version='1.0' encoding='utf-8'?>
> <domainsnapshot><disks><disk name="sda" snapshot="external"
> type="network"><source
>
name="gluvol3/e54d835a-d8a5-44ae-8e17-fcba1c54e46f/images/1f43916a-bbf2-447b-b17d-ba22d4ec8c90/0e56d498-11d2-4f35-b781-a2e06d286eb8"
>
> protocol="gluster" type="network"><host name="192.168.1
> 1.20" port="0" transport="tcp"
> /></source></disk></disks></domainsnapshot> (vm:4497)
>
> (jsonrpc/2) [virt.vm]
(vmId='acdc31b5-082b-4a68-b586-02354a7fdd73')
> Disabling drive monitoring (drivemonitor:60)
>
> (jsonrpc/2) [virt.vm]
(vmId='acdc31b5-082b-4a68-b586-02354a7fdd73')
> Freezing guest filesystems (vm:4268)
> WARN (jsonrpc/2) [virt.vm]
> (vmId='acdc31b5-082b-4a68-b586-02354a7fdd73') Unable to
freeze guest
> filesystems: Guest agent is not responding: QEMU guest agent
is not
> connected (vm:4273)
> INFO (jsonrpc/2) [virt.vm]
> (vmId='acdc31b5-082b-4a68-b586-02354a7fdd73') Taking a live
snapshot
> (drives=sda, memory=True) (vm:4513)
> ...
> ...
>
> ERROR (jsonrpc/2) [virt.vm]
> (vmId='acdc31b5-082b-4a68-b586-02354a7fdd73') Unable to take
snapshot
> (vm:4517)
> Traceback (most recent call last):
> File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py",
line 4514,
> in snapshot
> self._dom.snapshotCreateXML(snapxml, snapFlags)
> File
"/usr/lib/python2.7/site-packages/vdsm/virt/virdomain.py",
> line
> 100, in f
> ret = attr(*args, **kwargs)
> File
>
"/usr/lib/python2.7/site-packages/vdsm/common/libvirtconnection.py",
> line 131, in wrapper
> ret = f(*args, **kwargs)
> File
"/usr/lib/python2.7/site-packages/vdsm/common/function.py",
> line
> 94, in wrapper
> return func(inst, *args, **kwargs)
> File "/usr/lib64/python2.7/site-packages/libvirt.py",
line 2620, in
> snapshotCreateXML
> if ret is None:raise
libvirtError('virDomainSnapshotCreateXML()
> failed', dom=self)
> libvirtError: internal error: unable to execute QEMU command
> 'transaction': Could not read L1 table: Input/output error
> ...
> INFO (jsonrpc/2) [jsonrpc.JsonRpcServer] RPC call
VM.snapshot failed
> (error 48) in 4.65 seconds (__init__:312)
>
> It seems that the origin is libvirt or qemu.
>
> Regards
> Chris
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