Thanks Slavka,

I will attempt to clean up some old snaps and see if the backups start working 
again.

Andrei

----- Original Message -----
> From: "Slavka Peleva" <slav...@storpool.com.INVALID>
> To: "users" <users@cloudstack.apache.org>
> Sent: Monday, 14 June, 2021 13:28:01
> Subject: Re: Snapshots are not working after upgrading to 4.15.0

> Hi, Andrei,
> 
> After a quick check of the code, I guess that the backup of the snapshot
> fails because the secondary storage space should be less than 90%, and you
> pointed that yours is 90.6% full.
> 
> Regards,
> Slavka
> 
> On Mon, Jun 14, 2021 at 1:10 PM Andrei Mikhailovsky
> <and...@arhont.com.invalid> wrote:
> 
>> Hi Harikrishna,
>>
>> I've done some more testing testing just now. Please see below the answers
>> to your questions/comments:
>>
>>
>>
>> ----- Original Message -----
>> > From: "Harikrishna Patnala" <harikrishna.patn...@shapeblue.com>
>> > To: "users" <users@cloudstack.apache.org>
>> > Sent: Tuesday, 8 June, 2021 03:33:57
>> > Subject: Re: Snapshots are not working after upgrading to 4.15.0
>>
>> > Hi Andrei,
>> >
>> > Can you check the following things and let us know?
>> >
>> >
>> >  1.  Can you try creating a new volume and then create snapshot of that,
>> to check
>> >  if this an issue with old entries
>>
>> AM: I've done testing with a newly created image which was attached to a
>> vm. The same problem happens with new images as well as old images. Please
>> see the link below for the management server log.
>>
>>
>> https://zerobin.net/?5781e4b65d9e3605#+GtIC7JBtp70Q0cw65cypJDiSyba/r/JldRsAyOI8l4=
>>
>>
>> >  2.  For the snapshots which are failing can you check if you are seeing
>> any
>> >  error messages like this "Can't find an image storage in zone with less
>> than".
>> >  This is to check if secondary storage free space check failed.
>>
>>
>> AM: I do not see any such message in the logs. tried grepping the logs for
>> a couple of weeks and nothing comes up. Having said this, the secondary
>> storage is about 90.6% full.
>>
>>
>> >  3.  For the snapshots which are failing and if it is delta snapshot can
>> you
>> >  check if its parent's snapshot entry exists in "snapshot_store_ref"
>> table with
>> >  'parent_snapshot_id' of the current snapshot with 'store_role' "Image".
>> This is
>> >  to find the secondary storage where the parent snapshot backup is
>> located.
>> >
>>
>> AM: all snapshots are failing, not just selective few. Some volumes are
>> brand new, as I've indicated above, others do have previous snapshots. I
>> only have a single secondary storage, so all snaps should be in one place.
>>
>>
>>
>>
>> > Regards,
>> > Harikrishna
>> > ________________________________
>> > From: Andrei Mikhailovsky <and...@arhont.com.INVALID>
>> > Sent: Monday, June 7, 2021 7:00 PM
>> > To: users <users@cloudstack.apache.org>
>> > Subject: Snapshots are not working after upgrading to 4.15.0
>> >
>> > Hello everyone,
>> >
>> > I am having an issue with volume snapshots since I've upgraded to
>> 4.15.0. None
>> > of the volumes are being snapshotted regardless if the snapshot is
>> initiated
>> > manually or from the schedule. The strange thing is that if I manually
>> take the
>> > snapshot, the GUI shows Success status, but the Storage>Snapshots show
>> an Error
>> > status. Here is what I see in the management server logs:
>> >
>> > 2021-06-07 13:55:20,022 DEBUG [o.a.c.f.j.i.AsyncJobManagerImpl]
>> > (Work-Job-Executor-81:ctx-08dd4222 job-86141/job-86143) (logid:be34ce01)
>> Done
>> > executing com.cloud.vm.VmWorkTakeVolumeSnapshot for job-86143
>> > 2021-06-07 13:55:20,024 INFO [o.a.c.f.j.i.AsyncJobMonitor]
>> > (Work-Job-Executor-81:ctx-08dd4222 job-86141/job-86143) (logid:be34ce01)
>> Remove
>> > job-86143 from job monitoring
>> > 2021-06-07 13:55:20,094 DEBUG [o.a.c.s.s.SnapshotServiceImpl]
>> > (BackupSnapshotTask-3:ctx-744796da) (logid:607dbb0e) Failed to copy
>> snapshot
>> > com.cloud.utils.exception.CloudRuntimeException: can not find an image
>> stores
>> > at
>> >
>> org.apache.cloudstack.storage.snapshot.SnapshotServiceImpl.backupSnapshot(SnapshotServiceImpl.java:271)
>> > at
>> >
>> org.apache.cloudstack.storage.snapshot.DefaultSnapshotStrategy.backupSnapshot(DefaultSnapshotStrategy.java:171)
>> > at
>> >
>> com.cloud.storage.snapshot.SnapshotManagerImpl$BackupSnapshotTask.runInContext(SnapshotManagerImpl.java:1238)
>> > at
>> >
>> org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:48)
>> > at
>> >
>> org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:55)
>> > at
>> >
>> org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:102)
>> > at
>> >
>> org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:52)
>> > at
>> >
>> org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:45)
>> > at
>> >
>> java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
>> > at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
>> > at
>> >
>> java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
>> > at
>> >
>> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
>> > at
>> >
>> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
>> > at java.base/java.lang.Thread.run(Thread.java:829)
>> > 2021-06-07 13:55:20,152 DEBUG [c.c.s.s.SnapshotManagerImpl]
>> > (BackupSnapshotTask-3:ctx-744796da) (logid:607dbb0e) Backing up of
>> snapshot
>> > failed, for snapshot with ID 53531, left with 2 more attempts
>> >
>> >
>> > I've checked and the Secondary storage is configured and visible in the
>> GUI. I
>> > can also mount it manually from the management server and a couple of
>> host
>> > servers that I've tested. In addition, I can successfully upload an ISO
>> image
>> > and that registers just fine and I can create new VMs using the newly
>> uploaded
>> > ISO image.
>> >
>> > I've had no such problems with 4.13.x ACS, so the issue seems to have
>> been
>> > introduced after doing the upgrade to 4.15.0.
>> >
>> > Could you please let me know how do I fix the issue?
>> >
>> > Cheers
>> >
>> > andrei

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