Hi,

On Sun, 2019-07-07 at 09:31 +0300, Benny Zlotnik wrote:
> Any chance you can setup gdb[1] so we can find out where it's stuck
> exactly?

Yes, abolutely - but I will need some assistance in getting GDB
configured in the engine as I am not very familar with it - or how to
enable the correct repos to get the debug info.

$ gdb python 54654

[...]

Reading symbols from /lib64/libfreeblpriv3.so...Reading symbols from
/lib64/libfreeblpriv3.so...(no debugging symbols found)...done.
(no debugging symbols found)...done.
Loaded symbols for /lib64/libfreeblpriv3.so
0x00007fcf82256483 in epoll_wait () from /lib64/libc.so.6
Missing separate debuginfos, use: debuginfo-install python-2.7.5-
80.el7_6.x86_64
(gdb) pt-bt
Undefined command: "pt-bt".  Try "help".


> Also, which version of ovirt are you using?

Using 4.3.4

> Can you also check the ceph logs for anything suspicious?

I haven't seen anything so far, but is an entirely resonable
possibility this is ceph misoconfiguraiton as we are learning about
both tools.


thanks,

Dan

>
>
> [1] - https://wiki.python.org/moin/DebuggingWithGdb
> $ gdb python <cinderlib pid>
> then `py-bt`
>
> On Thu, Jul 4, 2019 at 7:00 PM <[email protected]> wrote:
> > > Can you provide logs? mainly engine.log and cinderlib.log
> > > (/var/log/ovirt-engine/cinderlib/cinderlib.log
> >
> >
> > If I create two volumes, the first one succeeds successfully, the
> > second one hangs. If I look in the processlist after creating the
> > second volume which doesn't succceed, I see the python ./cinderlib-
> > client.py create_volume [...] command still running.
> >
> > On the ceph side, I can see only the one rbd volume.
> >
> > Logs below:
> >
> >
> >
> > --- cinderlib.log --
> >
> > 2019-07-04 16:46:30,863 - cinderlib-client - INFO - Fetch backend
> > stats [b07698bb-1688-472f-841b-70a9d52a250d]
> > 2019-07-04 16:46:56,308 - cinderlib-client - INFO - Creating volume
> > '236285cc-ac01-4239-821c-4beadd66923f', with size '2' GB [0b0f0d6f-
> > cb20-440a-bacb-7f5ead2b4b4d]
> > 2019-07-04 16:47:21,671 - cinderlib-client - INFO - Creating volume
> > '84886485-554a-44ca-964c-9758b4a16aae', with size '2' GB [a793bfc9-
> > fc37-4711-a144-d74c100cc75b]
> >
> > --- engine.log ---
> >
> > 2019-07-04 16:46:54,062+01 INFO
> > [org.ovirt.engine.core.bll.storage.disk.AddDiskCommand] (default
> > task-22) [0b0f0d6f-cb20-440a-bacb-7f5ead2b4b4d] Running command:
> > AddDiskCommand internal: false. Entities affected :  ID: 31536d80-
> > ff45-496b-9820-15441d505924 Type: StorageAction group CREATE_DISK
> > with role type USER
> > 2019-07-04 16:46:54,150+01 INFO
> > [org.ovirt.engine.core.bll.storage.disk.managedblock.AddManagedBloc
> > kStorageDiskCommand] (EE-ManagedThreadFactory-commandCoordinator-
> > Thread-1) [0b0f0d6f-cb20-440a-bacb-7f5ead2b4b4d] Running command:
> > AddManagedBlockStorageDiskCommand internal: true.
> > 2019-07-04 16:46:56,863+01 INFO
> > [org.ovirt.engine.core.common.utils.cinderlib.CinderlibExecutor]
> > (EE-ManagedThreadFactory-commandCoordinator-Thread-1) [0b0f0d6f-
> > cb20-440a-bacb-7f5ead2b4b4d] cinderlib output:
> > 2019-07-04 16:46:56,912+01 INFO
> > [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirect
> > or] (default task-22) [] EVENT_ID:
> > USER_ADD_DISK_FINISHED_SUCCESS(2,021), The disk 'test0' was
> > successfully added.
> > 2019-07-04 16:47:00,126+01 INFO
> > [org.ovirt.engine.core.bll.ConcurrentChildCommandsExecutionCallback
> > ] (EE-ManagedThreadFactory-engineScheduled-Thread-95) [0b0f0d6f-
> > cb20-440a-bacb-7f5ead2b4b4d] Command 'AddDisk' id: '15fe157d-7adb-
> > 4031-9e81-f51aa0b6528f' child commands '[d056397a-7ed9-4c01-b880-
> > dd518421a2c6]' executions were completed, status 'SUCCEEDED'
> > 2019-07-04 16:47:01,136+01 INFO
> > [org.ovirt.engine.core.bll.storage.disk.AddDiskCommand] (EE-
> > ManagedThreadFactory-engineScheduled-Thread-99) [0b0f0d6f-cb20-
> > 440a-bacb-7f5ead2b4b4d] Ending command
> > 'org.ovirt.engine.core.bll.storage.disk.AddDiskCommand'
> > successfully.
> > 2019-07-04 16:47:01,141+01 INFO
> > [org.ovirt.engine.core.bll.storage.disk.managedblock.AddManagedBloc
> > kStorageDiskCommand] (EE-ManagedThreadFactory-engineScheduled-
> > Thread-99) [0b0f0d6f-cb20-440a-bacb-7f5ead2b4b4d] Ending command
> > 'org.ovirt.engine.core.bll.storage.disk.managedblock.AddManagedBloc
> > kStorageDiskCommand' successfully.
> > 2019-07-04 16:47:01,145+01 WARN
> > [org.ovirt.engine.core.bll.storage.disk.AddDiskCommand] (EE-
> > ManagedThreadFactory-engineScheduled-Thread-99) [] VM is null - no
> > unlocking
> > 2019-07-04 16:47:01,186+01 INFO
> > [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirect
> > or] (EE-ManagedThreadFactory-engineScheduled-Thread-99) []
> > EVENT_ID: USER_ADD_DISK_FINISHED_SUCCESS(2,021), The disk 'test0'
> > was successfully added.
> > 2019-07-04 16:47:19,446+01 INFO
> > [org.ovirt.engine.core.bll.storage.disk.AddDiskCommand] (default
> > task-22) [a793bfc9-fc37-4711-a144-d74c100cc75b] Running command:
> > AddDiskCommand internal: false. Entities affected :  ID: 31536d80-
> > ff45-496b-9820-15441d505924 Type: StorageAction group CREATE_DISK
> > with role type USER
> > 2019-07-04 16:47:19,464+01 INFO
> > [org.ovirt.engine.core.bll.storage.disk.managedblock.AddManagedBloc
> > kStorageDiskCommand] (EE-ManagedThreadFactory-commandCoordinator-
> > Thread-2) [a793bfc9-fc37-4711-a144-d74c100cc75b] Running command:
> > AddManagedBlockStorageDiskCommand internal: true.
> > 2019-07-04 16:48:19,501+01 INFO
> > [org.ovirt.engine.core.bll.utils.ThreadPoolMonitoringService] (EE-
> > ManagedThreadFactory-engineThreadMonitoring-Thread-1) [] Thread
> > pool 'commandCoordinator' is using 1 threads out of 10, 1 threads
> > waiting for tasks.
> > 2019-07-04 16:48:19,501+01 INFO
> > [org.ovirt.engine.core.bll.utils.ThreadPoolMonitoringService] (EE-
> > ManagedThreadFactory-engineThreadMonitoring-Thread-1) [] Thread
> > pool 'default' is using 0 threads out of 1, 5 threads waiting for
> > tasks.
> > 2019-07-04 16:48:19,501+01 INFO
> > [org.ovirt.engine.core.bll.utils.ThreadPoolMonitoringService] (EE-
> > ManagedThreadFactory-engineThreadMonitoring-Thread-1) [] Thread
> > pool 'engine' is using 0 threads out of 500, 9 threads waiting for
> > tasks and 0 tasks in queue.
> > 2019-07-04 16:48:19,501+01 INFO
> > [org.ovirt.engine.core.bll.utils.ThreadPoolMonitoringService] (EE-
> > ManagedThreadFactory-engineThreadMonitoring-Thread-1) [] Thread
> > pool 'engineScheduled' is using 0 threads out of 100, 100 threads
> > waiting for tasks.
> > 2019-07-04 16:48:19,501+01 INFO
> > [org.ovirt.engine.core.bll.utils.ThreadPoolMonitoringService] (EE-
> > ManagedThreadFactory-engineThreadMonitoring-Thread-1) [] Thread
> > pool 'engineThreadMonitoring' is using 1 threads out of 1, 0
> > threads waiting for tasks.
> > 2019-07-04 16:48:19,501+01 INFO
> > [org.ovirt.engine.core.bll.utils.ThreadPoolMonitoringService] (EE-
> > ManagedThreadFactory-engineThreadMonitoring-Thread-1) [] Thread
> > pool 'hostUpdatesChecker' is using 0 threads out of 5, 1 threads
> > waiting for tasks.
> >
> >
> >
> > 2019-07-04 16:46:54,062+01 INFO
> > [org.ovirt.engine.core.bll.storage.disk.AddDiskCommand] (default
> > task-22) [0b0f0d6f-cb20-440a-bacb-7f5ead2b4b4d] Running command:
> > AddDiskCommand internal: false. Entities affected :  ID: 31536d80-
> > ff45-496b-9820-15441d505924 Type: StorageAction group CREATE_DISK
> > with role type USER
> > 2019-07-04 16:46:54,150+01 INFO
> > [org.ovirt.engine.core.bll.storage.disk.managedblock.AddManagedBloc
> > kStorageDiskCommand] (EE-ManagedThreadFactory-commandCoordinator-
> > Thread-1) [0b0f0d6f-cb20-440a-bacb-7f5ead2b4b4d] Running command:
> > AddManagedBlockStorageDiskCommand internal: true.
> > 2019-07-04 16:46:56,863+01 INFO
> > [org.ovirt.engine.core.common.utils.cinderlib.CinderlibExecutor]
> > (EE-ManagedThreadFactory-commandCoordinator-Thread-1) [0b0f0d6f-
> > cb20-440a-bacb-7f5ead2b4b4d] cinderlib output:
> > 2019-07-04 16:46:56,912+01 INFO
> > [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirect
> > or] (default task-22) [] EVENT_ID:
> > USER_ADD_DISK_FINISHED_SUCCESS(2,021), The disk 'test0' was
> > successfully added.
> > 2019-07-04 16:47:00,126+01 INFO
> > [org.ovirt.engine.core.bll.ConcurrentChildCommandsExecutionCallback
> > ] (EE-ManagedThreadFactory-engineScheduled-Thread-95) [0b0f0d6f-
> > cb20-440a-bacb-7f5ead2b4b4d] Command 'AddDisk' id: '15fe157d-7adb-
> > 4031-9e81-f51aa0b6528f' child commands '[d056397a-7ed9-4c01-b880-
> > dd518421a2c6]' executions were completed, status 'SUCCEEDED'
> > 2019-07-04 16:47:01,136+01 INFO
> > [org.ovirt.engine.core.bll.storage.disk.AddDiskCommand] (EE-
> > ManagedThreadFactory-engineScheduled-Thread-99) [0b0f0d6f-cb20-
> > 440a-bacb-7f5ead2b4b4d] Ending command
> > 'org.ovirt.engine.core.bll.storage.disk.AddDiskCommand'
> > successfully.
> > 2019-07-04 16:47:01,141+01 INFO
> > [org.ovirt.engine.core.bll.storage.disk.managedblock.AddManagedBloc
> > kStorageDiskCommand] (EE-ManagedThreadFactory-engineScheduled-
> > Thread-99) [0b0f0d6f-cb20-440a-bacb-7f5ead2b4b4d] Ending command
> > 'org.ovirt.engine.core.bll.storage.disk.managedblock.AddManagedBloc
> > kStorageDiskCommand' successfully.
> > 2019-07-04 16:47:01,145+01 WARN
> > [org.ovirt.engine.core.bll.storage.disk.AddDiskCommand] (EE-
> > ManagedThreadFactory-engineScheduled-Thread-99) [] VM is null - no
> > unlocking
> > 2019-07-04 16:47:01,186+01 INFO
> > [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirect
> > or] (EE-ManagedThreadFactory-engineScheduled-Thread-99) []
> > EVENT_ID: USER_ADD_DISK_FINISHED_SUCCESS(2,021), The disk 'test0'
> > was successfully added.
> > 2019-07-04 16:47:19,446+01 INFO
> > [org.ovirt.engine.core.bll.storage.disk.AddDiskCommand] (default
> > task-22) [a793bfc9-fc37-4711-a144-d74c100cc75b] Running command:
> > AddDiskCommand internal: false. Entities affected :  ID: 31536d80-
> > ff45-496b-9820-15441d505924 Type: StorageAction group CREATE_DISK
> > with role type USER
> > 2019-07-04 16:47:19,464+01 INFO
> > [org.ovirt.engine.core.bll.storage.disk.managedblock.AddManagedBloc
> > kStorageDiskCommand] (EE-ManagedThreadFactory-commandCoordinator-
> > Thread-2) [a793bfc9-fc37-4711-a144-d74c100cc75b] Running command:
> > AddManagedBlockStorageDiskCommand internal: true.
> > 2019-07-04 16:48:19,501+01 INFO
> > [org.ovirt.engine.core.bll.utils.ThreadPoolMonitoringService] (EE-
> > ManagedThreadFactory-engineThreadMonitoring-Thread-1) [] Thread
> > pool 'commandCoordinator' is using 1 threads out of 10, 1 threads
> > waiting for tasks.
> > 2019-07-04 16:48:19,501+01 INFO
> > [org.ovirt.engine.core.bll.utils.ThreadPoolMonitoringService] (EE-
> > ManagedThreadFactory-engineThreadMonitoring-Thread-1) [] Thread
> > pool 'default' is using 0 threads out of 1, 5 threads waiting for
> > tasks.
> > 2019-07-04 16:48:19,501+01 INFO
> > [org.ovirt.engine.core.bll.utils.ThreadPoolMonitoringService] (EE-
> > ManagedThreadFactory-engineThreadMonitoring-Thread-1) [] Thread
> > pool 'engine' is using 0 threads out of 500, 9 threads waiting for
> > tasks and 0 tasks in queue.
> > 2019-07-04 16:48:19,501+01 INFO
> > [org.ovirt.engine.core.bll.utils.ThreadPoolMonitoringService] (EE-
> > ManagedThreadFactory-engineThreadMonitoring-Thread-1) [] Thread
> > pool 'engineScheduled' is using 0 threads out of 100, 100 threads
> > waiting for tasks.
> > 2019-07-04 16:48:19,501+01 INFO
> > [org.ovirt.engine.core.bll.utils.ThreadPoolMonitoringService] (EE-
> > ManagedThreadFactory-engineThreadMonitoring-Thread-1) [] Thread
> > pool 'engineThreadMonitoring' is using 1 threads out of 1, 0
> > threads waiting for tasks.
> > 2019-07-04 16:48:19,501+01 INFO
> > [org.ovirt.engine.core.bll.utils.ThreadPoolMonitoringService] (EE-
> > ManagedThreadFactory-engineThreadMonitoring-Thread-1) [] Thread
> > pool 'hostUpdatesChecker' is using 0 threads out of 5, 1 threads
> > waiting for tasks.
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