changeset: 5766:00a8950e6888
branch: opensaf-4.5.x
parent: 5764:ed452ef6f6d4
user: Hans Feldt <[email protected]>
date: Thu Sep 11 15:42:47 2014 +0200
summary: imma: fix potential race with is_immnd_up [#1050]
changeset: 5767:e7bad9ce4537
tag: tip
parent: 5765:d09a52b10727
user: Hans Feldt <[email protected]>
date: Thu Sep 11 15:42:47 2014 +0200
summary: imma: fix potential race with is_immnd_up [#1050]
---
** [tickets:#1050] amfnd sometimes fails to start due to ERR_LIBRARY from
saImmOmInitialize**
**Status:** review
**Milestone:** 4.5.0
**Created:** Tue Sep 09, 2014 07:08 AM UTC by Hans Feldt
**Last Updated:** Wed Sep 10, 2014 09:16 AM UTC
**Owner:** Hans Feldt
With MDS/TIPC amfnd randomly fails to start causing failed opensaf start.
osafimmnd logs the infamous "immnd_evt_proc_imm_init: ... MDS problem?"
Reason is a random timing variation of the TIPC topology DOWN event. This
sometimes causes the DOWN event to wrongly delete a newly added process_info
entry.
The trigger for this problem is that some IMM clients in opensaf like amfnd
does not reuse IMM handles but initialize/finalize in a far from optimal way.
This should also be fixed.
The solution under test consists of two parts:
1) The MDS down event just starts a timer in MDS, when the timeout event
happens the process_info entry is deleted.
2) A new explicit disconnect() is added to the MDS API which is used by IMMA
library when it is about to close down the whole core library.
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