The service event is PRIORITY_VERY_HIGH and the intro message is PRIORITY_HIGH.
So service event should always be processed before the intro message.
I think the problem comes from MDS (or TIPC), not from the way IMMD puts
messages to the mailbox.
---
** [tickets:#1955] imm: Fail to detect veteran node when NCSMDS_UP event comes
late**
**Status:** accepted
**Milestone:** 5.0.1
**Created:** Wed Aug 17, 2016 10:44 AM UTC by Hung Nguyen
**Last Updated:** Wed Aug 24, 2016 07:32 AM UTC
**Owner:** Hung Nguyen
**Attachments:**
-
[syslog.7z](https://sourceforge.net/p/opensaf/tickets/1955/attachment/syslog.7z)
(93.4 kB; application/octet-stream)
Sometimes, the NCSMDS_UP event comes after the messages.
In this case, IMMD received the IMMD_EVT_ND2D_INTRO message before the
NCSMDS_UP event.
IMMD failed to process the intro message because the node info had not been
added to cb->immnd_tree.
~~~
Aug 12 08:13:53 SC-1 osafimmd[11184]: WA Node not found 566314186398634
Aug 12 08:13:53 SC-1 osafimmd[11184]: WA Error returned from processing message
err:2 msg-type:2
Aug 12 08:13:53 SC-1 osafimmnd[11199]: NO SERVER STATE: IMM_SERVER_ANONYMOUS
--> IMM_SERVER_CLUSTER_WAITING
Aug 12 08:13:53 SC-1 osafimmd[11184]: NO New IMMND process is on ACTIVE
Controller at 2010f
Aug 12 08:13:53 SC-1 osafimmd[11184]: NO Extended intro from node 2010f
Aug 12 08:13:53 SC-1 osafimmd[11184]: NO First SC IMMND (OpenSAF 4.4 or later)
attached 2010f
Aug 12 08:13:53 SC-1 osafimmd[11184]: NO Attached Nodes:2 Accepted nodes:1
KnownVeteran:0 doReply:1
Aug 12 08:13:53 SC-1 osafimmd[11184]: NO First IMMND on SC found at 2010f this
IMMD at 2010f. Cluster is loading, *not* 2PBE => designating that IMMND as
coordinator
Aug 12 08:13:53 SC-1 osafimmnd[11199]: NO This IMMND is now the NEW Coord
~~~
IMMND on SC-1 was elected as coordinator insted of the veteran.
The MDS messages come from 'Dsock' socket and MDS events come from 'BSRsock'.
Since MDS uses two different sockets so I think we can't fix this problem in
MDS.
IMM has to somehow handle this case.
---
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