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18 minutes delay between object-store going unavailable and available

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Category:
storagegrid
Specialty:
sgrid
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Applies to

  • Fabricpool
  • StorageGRID
  • Virtual gateway nodes
  • HA-groups

Issue

Ontap EMS logs will show close to 18 minutes delay between Object Store going unavailable and back to available

Sat Apr 10 09:27:07 +0200 [mc-netapp-a01: OscLowPriThreadPool: object.store.unavailable:EMERGENCY]: Unable to connect to the object store "fp-mc-netapp-a-primary" from node 727010ba-db24-11ea-b4cf-d039ea1ef264. Reason: Connection unavailable.
Sat Apr 10 09:44:55 +0200 [mc-netapp-a01: OscLowPriThreadPool: object.store.available:notice]: Able to connect to the object store "fp-mc-netapp-a-primary" from node 727010ba-db24-11ea-b4cf-d039ea1ef264.
 
 
Tue Apr 13 20:12:24 +0200 [mc-netapp-a01: OscHighPriThreadPool: object.store.unavailable:EMERGENCY]: Unable to connect to the object store "fp-mc-netapp-a-primary" from node 727010ba-db24-11ea-b4cf-d039ea1ef264. Reason: Connection unavailable.
Tue Apr 13 20:30:10 +0200 [mc-netapp-a01: OscLowPriThreadPool: object.store.available:notice]: Able to connect to the object store "fp-mc-netapp-a-primary" from node 727010ba-db24-11ea-b4cf-d039ea1ef264.
 
Object Store goes unavailable after 1000 failing S3 ops or after 2 minutes not responding, whichever comes first.
In the latter situation the total time of Object Store being unavailable is 20 minutes (2 minutes for the first Unavailable message + 18 minutes later for the Available message)
 
Usual behavior is that a HEAD call is made after going unavailable, which unless there is a more serious issue will be successful and the Object Store will be marked Available again with 1-2 seconds.

 

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