Symptoms

Any VE-related OACI operation (start, stop, migration, autoscale rules delivery) gets stuck and cannot complete. Subscriptions hang in Configuring state and VEs reside in transitional states.

Analyzing /var/log/pa/vps.log on OACI IM, all threads marked as Shared executor thread are busy and not logging any new messages for a long time.

The last entry for the corresponding operation (for example, e9a5c33f-39c9-4c66-8f4a-a75b14bed0a0) is:

2019-03-01 15:09:51,710 (e9a5c33f-39c9-4c66-8f4a-a75b14bed0a0) INFO  CachingRouter [Shared executor thread #6 @1 @INTERACTIVE] - address:172.20.13.32

Cause

This behavior is recognized as CCU-19501 by CloudBlue R&D team.

Resolution

As an immediate resolution for the deadlock, the service should be restarted via upgrade-stop call:

How to restart OACI Instance Manager services?

Please contact your TAM or PTA to check the status of the request.

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