Comment 7 for bug 1852502

One plausible fix would be to have 'juju create-backup --no-logs", as they
aren't usually super relevant to restore and usually consume a
significant amount of data.

On Tue, Apr 20, 2021 at 1:55 AM Soumya <email address hidden> wrote:

> I have a periodic juju backup script which sometimes fails with a
> similar error. Pasting it here for reference.
>
> ----------------------------
> ERROR while creating backup archive: while dumping juju state database:
> error dumping databases: error executing "/usr/bin/mongodump":
> 2021-04-19T07:05:31.665+0000 writing admin.system.users to ;
> 2021-04-19T07:05:31.667+0000 done dumping admin.system.users (2
> documents); 2021-04-19T07:05:31.667+0000 writing admin.system.version
> to ; 2021-04-19T07:05:31.668+0000 done dumping admin.system.version (2
> documents); 2021-04-19T07:05:31.669+0000 writing
> logs.logs.bac50024-0ebc-4409-8261-2cf17197e703 to ;
> 2021-04-19T07:05:31.669+0000 writing
> logs.logs.f11ecb98-49f4-4bbe-8990-b9ad8fcbf316 to ;
> 2021-04-19T07:05:31.669+0000 writing juju.txns.log to ;
> 2021-04-19T07:05:31.670+0000 writing juju.statuseshistory to ;
> 2021-04-19T07:05:31.828+0000 done dumping juju.statuseshistory (21524
> documents); 2021-04-19T07:05:31.828+0000 writing juju.actions to ;
> 2021-04-19T07:05:31.832+0000 Failed: error writing data for collection
> `logs.logs.bac50024-0ebc-4409-8261-2cf17197e703` to disk: error reading
> collection: Executor error during find command: CappedPositionLost:
> CollectionScan died due to position in capped collection being deleted.
> Last seen record id: RecordId(95589716);
> ----------------------------
>
> --
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> https://bugs.launchpad.net/bugs/1852502
>
> Title:
> Juju backups failing Executor error: CappedPositionLost:
> CollectionScan died due to position in capped collection being
> deleted.
>
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