Hi Praveen,
I have found a commit that updates saAmfSISUHAState right after sending su_si
assignment in function avd_susi_mod_send, which is:
changeset: 3016:8f4d14ab88e4
summary: AVSv:Updating susi assignment countrs at the time of role sending
#1870
I think this commit was meant to update the assignment counter/saAmfSISUHAState
at the time role of SUSI changes. It would be not appropriate if we don't
update ha state but we increase/decrease the related counters
(saAmfSINumCurrActiveAssignments, saAmfSINumCurrStandbyAssignments) to IMM.
The ticket #1870 is quite old and I don't find description/motivation in
details for this ticket. Do you know what it was for?
Thanks,
Minh
---
** [tickets:#2134] AMF: Update RTA saAmfSISUHAState to IMM**
**Status:** unassigned
**Milestone:** 5.2.FC
**Created:** Thu Oct 20, 2016 07:58 PM UTC by Minh Hon Chau
**Last Updated:** Fri Oct 21, 2016 06:31 AM UTC
**Owner:** nobody
In scenario of 2N Si-swap, when AMFD sends QUIESCED su_si assignment msg (for
example) to AMFND that changes the HA State of SUSI assignment, AMFD updates
its local state AVD_SU_SI_REL::state, checkpoint this change to standby AMFD.
However, AMFD does not updates saAmfSISUHAState untill receiving su_si
assignment response. Question:
(1). Whether AMFD should update the runtime attribute saAmfSISUHAState to IMM
as long as local @state gets updated in implementer; to make IMM, active AMFD,
standby AMFD all are synced
(2). Or AMFD updates saAmfSISUHAState to IMM only if AMFD receives su_si
assignment from AMFND, as it has been implemented currently for some reason
(not expose the change of saAmfSISUHAState to user too early?)
grep "avd_susi_update" which updates saAmfSISUHAState to IMM, there is also an
inconsistency in usage. For avd_susi_mod_send() sends su_si msg and also
updates saAmfSISUHAState immediately, while avd_sg_su_si_mod_snd does
otherwise.
Since the headless recovery relies on IMM to restore the state. If
saAmfSISUHAState is not updated punctually and the node is reboot during
headless stage, so after headless saAmfSISUHAState read from IMM does not fit
with many other states (SG fsm, SUSI fsm, saAmfSISUHAState of the other SUSIs).
My question is if doing (1) will cause any problem for normal cluster? Pending
patches #1725 part 2 currently implement (1).
---
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