Power on function

olivierlambert

xe task-list on any pool member

dsiminiuk

@livierlambert said in Power on function:

xe task-list

Oh, that was too easy. There it is.

uuid ( RO)                : e1896255-fbec-76d6-c2f4-9c2829c1f72b
          name-label ( RO): Async.host.power_on
    name-description ( RO):
              status ( RO): pending
            progress ( RO): 0.000

xe task-cancel uuid=e1896255-fbec-76d6-c2f4-9c2829c1f72b

Doesn't cancel it.

olivierlambert

Okay and a toolstack restart on the master doesn't clean it?

dsiminiuk

@livierlambert It did now but never did before

I wonder if it is because the same host the command was run against was the master at the time and is now. Perhaps server 2 as master previously failed when the command was on server 1.

Makes no sense to me. All good for now. Thank you.

dsiminiuk

@livierlambert Nope, I didn't wait long enough. It's back.

uuid ( RO)                : 4d1971f4-4895-78c8-2856-d679d457b75e
          name-label ( RO): Async.host.power_on
    name-description ( RO):
              status ( RO): pending
            progress ( RO): 0.000

olivierlambert

It's not the same task (new UUID)

dsiminiuk

@livierlambert correct, which tells me it has been added again by something else. XO? Where I initated the command originally?

olivierlambert

You can check who did this in the audit.log file of your master

dsiminiuk

@livierlambert

Jul  8 10:58:09 xcpng01 xapi: [20200708T15:58:09.775Z|audit||104166 INET :::80|task.destroy D:b3c0abbbd938|audit] ('trackid=68849bbe6e0a22d9b0b024c21c2b6e36' 'LOCAL_SUPERUSER' 'root' 'ALLOWED' 'OK' 'API' 'task.destroy' (('self' 'Async.host.power_on' '3450e4eb-9a11-24ba-5e0c-699ff352028b' 'OpaqueRef:99fd01c3-535d-4334-bb92-c4cb4f84f16c')))

Jul  8 11:51:16 xcpng01 xapi: [20200708T16:51:16.956Z|audit||108793 UNIX /var/lib/xcp/xapi|task.cancel D:05f4e18101a6|audit] ('trackid=e49c5c3a24fed047e0aa1a3ed7b47ab3' 'LOCAL_SUPERUSER' 'root' 'ALLOWED' 'OK' 'API' 'task.cancel' (('task' 'Async.host.power_on' 'e1896255-fbec-76d6-c2f4-9c2829c1f72b' 'OpaqueRef:083c7658-c1e5-46d7-bf9c-3b809be635d6')))

olivierlambert

This is for task destroy, not a task creation.

dsiminiuk

@livierlambert it is all I see from:

fgrep Async.host.power_on /var/log/audit.log

olivierlambert

Grep on host.power_on to see if it's better.

dsiminiuk

@livierlambert

fgrep host.power_on audit.log.1 | fgrep -v destroy | fgrep -v cancel

Jul  7 23:58:02 xcpng01 xapi: [20200708T04:58:02.118Z|audit||36922 |Async.host.power_on R:0af8abcf2f46|audit] ('trackid=68849bbe6e0a22d9b0b024c21c2b6e36' 'LOCAL_SUPERUSER' 'root' 'ALLOWED' 'ERROR:INTERNAL_ERROR: [ (Failure \"The host failed to power on.\") ]' 'API' 'host.power_on' (('host' 'xcpng02' '1139bfbc-c487-4311-8206-bbffe96ed6b1' 'OpaqueRef:426e950f-f926-490f-b598-328314aafbdc')))

Jul  8 00:58:02 xcpng01 xapi: [20200708T05:58:02.803Z|audit||42462 |Async.host.power_on R:2733002e2e58|audit] ('trackid=68849bbe6e0a22d9b0b024c21c2b6e36' 'LOCAL_SUPERUSER' 'root' 'ALLOWED' 'ERROR:INTERNAL_ERROR: [ (Failure \"The host failed to power on.\") ]' 'API' 'host.power_on' (('host' 'xcpng02' '1139bfbc-c487-4311-8206-bbffe96ed6b1' 'OpaqueRef:426e950f-f926-490f-b598-328314aafbdc')))

Jul  8 01:58:03 xcpng01 xapi: [20200708T06:58:03.488Z|audit||48005 |Async.host.power_on R:e74dd3d29556|audit] ('trackid=68849bbe6e0a22d9b0b024c21c2b6e36' 'LOCAL_SUPERUSER' 'root' 'ALLOWED' 'ERROR:INTERNAL_ERROR: [ (Failure \"The host failed to power on.\") ]' 'API' 'host.power_on' (('host' 'xcpng02' '1139bfbc-c487-4311-8206-bbffe96ed6b1' 'OpaqueRef:426e950f-f926-490f-b598-328314aafbdc')))

Jul  8 02:58:04 xcpng01 xapi: [20200708T07:58:04.229Z|audit||53358 |Async.host.power_on R:e730dacdf348|audit] ('trackid=68849bbe6e0a22d9b0b024c21c2b6e36' 'LOCAL_SUPERUSER' 'root' 'ALLOWED' 'ERROR:INTERNAL_ERROR: [ (Failure \"The host failed to power on.\") ]' 'API' 'host.power_on' (('host' 'xcpng02' '1139bfbc-c487-4311-8206-bbffe96ed6b1' 'OpaqueRef:426e950f-f926-490f-b598-328314aafbdc')))

Jul  8 03:58:04 xcpng01 xapi: [20200708T08:58:04.897Z|audit||58846 |Async.host.power_on R:19f454d900b0|audit] ('trackid=68849bbe6e0a22d9b0b024c21c2b6e36' 'LOCAL_SUPERUSER' 'root' 'ALLOWED' 'ERROR:INTERNAL_ERROR: [ (Failure \"The host failed to power on.\") ]' 'API' 'host.power_on' (('host' 'xcpng02' '1139bfbc-c487-4311-8206-bbffe96ed6b1' 'OpaqueRef:426e950f-f926-490f-b598-328314aafbdc')))

Now going back in time to audit.log.[2-7].gz

olivierlambert

It's possible that XAPI recorder the host.power_on and loop on trying to do that, but to be fair, I never saw that before

Can you power on that host to see if it stops?

dsiminiuk

@livierlambert

Going back as far as I can to audit.log.7.gz only takes me back to June 30 and this has been a problem for more than a month so I don't think I can find the original request.

dsiminiuk

@livierlambert said in Power on function:

Can you power on that host to see if it stops?

I had the whole rack powered off yesterday, 2 - XCP-NG 8.1 servers (DL380 Gen9), 1 Freenas (DL380 Gen9) for iSCSI VDIs. It still came back.

olivierlambert

So now everything is back online but despite that you got the task?

dsiminiuk

@livierlambert said in Power on function:

So now everything is back online but despite that you got the task?

Yes, everything is up and working, just the task appears in XO and also on the master's tasks list as we see.

olivierlambert

Weird. Can you disconnect XO from this pool, restart toolstack on master, and see if the task is popping again? I think it will, I don't see why XO would do that.

dsiminiuk

@livierlambert said in Power on function:

Weird. Can you disconnect XO from this pool, restart toolstack on master, and see if the task is popping again? I think it will, I don't see why XO would do that.

I would remove the hosts from XO, restart toolstack, add hosts back to XO? Is this correct?