[SAC] [OSGeo] #2718: osgeo4 backup is failing

[OSGeo]

#2718: osgeo4 backup is failing
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 Reporter:  robe           |      Owner:  sac@…
     Type:  task           |     Status:  new
 Priority:  normal         |  Milestone:  Sysadmin Contract 2022-I
Component:  Systems Admin  |   Keywords:
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 This might be result of upgrade or something.


 {{{

 Error: Failed to run: zfs destroy osgeo7/containers/secure at snapshot-for-
 osgeo4: cannot destroy snapshot osgeo7/containers/secure at snapshot-for-
 osgeo4: dataset is busy
 Error: Failed to run: zfs destroy osgeo7/containers/wordpress at snapshot-
 for-osgeo4: cannot destroy snapshot osgeo7/containers/wordpress at snapshot-
 for-osgeo4: dataset is busy
 Error: Failed to run: zfs destroy osgeo7/containers/dronie-server
 @snapshot-for-osgeo4: cannot destroy snapshot osgeo7/containers/dronie-
 server at snapshot-for-osgeo4: dataset is busy

 }}}

 It sometimes resolves itself but sometimes doesn't and then a reboot of
 osgeo7 is required or explicitly unmount / mount the containers.

 I think the script also needs some work as it looks like it deleted the
 backups even though taking a snapshot failed.

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Ticket URL: <https://trac.osgeo.org/osgeo/ticket/2718>
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