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** [tickets:#2029] imm: fevs message lost during failover**
**Status:** unassigned
**Milestone:** 4.7.2
**Created:** Tue Sep 13, 2016 11:05 AM UTC by Hung Nguyen
**Last Updated:** Tue Sep 13, 2016 11:05 AM UTC
**Owner:** nobody
There's fevs message loss when failing over between 2 SCs.
</br>
~~~
Sep 8 11:50:00 SC-2-1 osafimmnd[4241]: NO Implementer locally disconnected.
Marking it as doomed 232 <754, 2010f> (@OpenSafImmPBE)
Sep 8 11:50:00 SC-2-1 osafimmnd[4241]: NO Implementer locally disconnected.
Marking it as doomed 233 <755, 2010f> (OsafImmPbeRt_B)
...
Sep 8 11:50:00 SC-2-1 osafimmnd[4241]: NO Implementer disconnected 233 <755,
2010f> (OsafImmPbeRt_B)
~~~
</br>
The IMMNDs never receive the D2ND_DISCARD_IMPL for @OpenSafImmPBE, so that
applier keeps being mark as dying
</br>
~~~
Sep 8 11:50:02 SC-2-1 osafimmnd[4241]: NO ImmModel::getPbeBSlave reports
missing PbeBSlave locally => unsafe
Sep 8 11:50:03 SC-2-1 osafimmnd[4241]: NO ImmModel::getPbeBSlave reports
missing PbeBSlave locally => unsafe
Sep 8 11:50:04 SC-2-1 osafimmnd[4241]: NO ImmModel::getPbeBSlave reports
missing PbeBSlave locally => unsafe
...
Sep 8 11:59:08 SC-2-1 osafimmnd[4241]: NO ImmModel::getPbeBSlave reports
missing PbeBSlave locally => unsafe
Sep 8 11:59:09 SC-2-1 osafimmnd[4241]: NO ImmModel::getPbeBSlave reports
missing PbeBSlave locally => unsafe
Sep 8 11:59:10 SC-2-1 osafimmnd[4241]: NO ImmModel::getPbeBSlave reports
missing PbeBSlave locally => unsafe
...
~~~
</br>
Details of the problem is explained here
</br>
http://sequencediagram.org/index.html?initialData=A4QwTgLglgxloDsIAICSBZdARAjAKFElnhCTUywCYDxo5EUN0A5LAZzzzACMB7AD2S8AbgFMw5bDgA0TKgC45OecgDKAFQCCrAEIBNZAFpJC5JoDC61ADUAogB0EjgGajhbZDF4BXJOORQHjgADAAsAMwAbJxMrB6GAMRgogAmAHwmlCqu7gD6ALaibGwgAOainDwCQmISclk5Hl6+EP6ByCERAOyVfIIi-vXyAFSjbKIIKcj53DDTbKXIzrwSjfOLneFdjtzeKFAoXoUeELwmOMgANiCtMRSURgncl96iGbHs2W5sBQvIbBAQPlgKlkAB3A4ACw6YS2vWqAzqFGUqghEBg0NOZksNls-0BrUcOz2yEhIDYCAA5ChSrwUBBIaJprN1kswLx8pkiQg2GcGUy1s0-BJ2gCoJdLjCItE8B94klUu9kV88scSuV4f1aud5IKfMKAkFYdsnAhuKIYCBvONzvjxZKyRTqchkjBRFAxFN+cy5vkFtJHAd8UDgCdGUtvqy0dDNibHJoYBBvCAJQBPaTIb1rP2LNiQnyXKbm4PA0HRmHhUIADjuUkez1eSpYnwjqr+AJDZahUrhXD6NUGmDiiiH7ACpQQKyZKW8wEusBuoOzfwAFLGAJTc3mZ8NqspM2Nsjm29qXXgA5AAQivN+vd9vfYR2qUI1GrvdYh9rOWq0jOZ7cYIOo4Z6i0bQeCmyQgCkqYAdyADqmjIOgRTqkyQoQPIh4ANQdFeAC8AF4EAA
</br>
~~~
Sep 8 11:50:00 SC-2-1 osafimmd[4226]: WA IMMND DOWN on active controller 2
detected at standby immd!! 1. Possible failover
...
Sep 8 11:50:00 SC-2-1 osafimmd[4226]: WA Message count:10437 + 1 != 10437
Sep 8 11:50:00 SC-2-1 osafimmnd[4241]: WA DISCARD DUPLICATE FEVS message:10437
Sep 8 11:50:00 SC-2-1 osafimmnd[4241]: WA Error code 2 returned for message
type 82 - ignoring
~~~
</br>
Attached is the logs
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