- **Milestone**: 5.20.11 --> 5.21.03
---
** [tickets:#3250] imm: immnd dectect headless state wrong**
**Status:** fixed
**Milestone:** 5.21.03
**Created:** Thu Jan 28, 2021 10:06 AM UTC by Thien Minh Huynh
**Last Updated:** Tue Feb 09, 2021 03:04 AM UTC
**Owner:** Thien Minh Huynh
from MDS thread, that receive in order event : **IMMD RED_DOWN** from standby ,
**NCSMDS_DOWN**, **IMMD RED_DOWN** from active. All event from MDS thread will
be going to IMMND mail box. In event **NCSMDS_DOWN** was mark active node down.
IMMND receive **IMMD RED_DOWN** (standby) from MDS thread, then enter the
headless state. IMMND enter the headless state due to ACTIVE and STANDBY is
down. So the entering headless state is unexpected.
> <143>1 2021-01-25T21:49:35.467747+11:00 PL-2-4 osafimmnd 4916 osafimmnd [meta
> sequenceId="115"] 4916:imm/common/immsv_evt.c:6569 T8 Received:
> IMMND_EVT_MDS_INFO (1) from 0
<143>1 2021-01-25T21:49:35.467758+11:00 PL-2-4 osafimmnd 4916 osafimmnd [meta
sequenceId="116"] 4916:imm/immnd/immnd_evt.c:12290 T2 **IMMD RED_DOWN EVENT
2010f role=2 ==> ACT:0 SBY:0**
<140>1 2021-01-25T21:49:35.468554+11:00 PL-2-4 osafimmnd 4916 osafimmnd [meta
sequenceId="117"] 4916:imm/immnd/immnd_evt.c:12292 WA Both Active & Standby
DOWN, going to headless
<140>1 2021-01-25T21:49:35.468578+11:00 PL-2-4 osafimmnd 4916 osafimmnd [meta
sequenceId="118"] 4916:imm/immnd/immnd_evt.c:12315 WA SC Absence IS allowed:900
IMMD service is DOWN ex_immd_node_id=2020f
<141>1 2021-01-25T21:49:35.468595+11:00 PL-2-4 osafimmnd 4916 osafimmnd [meta
sequenceId="119"] 4916:imm/immnd/immnd_evt.c:12395 NO IMMD SERVICE IS DOWN,
HYDRA IS CONFIGURED => UNREGISTERING IMMND form MDS
<143>1 2021-01-25T21:49:35.468602+11:00 PL-2-4 osafimmnd 4916 osafimmnd [meta
sequenceId="120"] 4916:imm/immnd/immnd_mds.c:256 >> immnd_mds_unregister
...
<143>1 2021-01-25T21:49:36.495445+11:00 PL-2-4 osafimmnd 4916 osafimmnd [meta
sequenceId="237"] 4916:imm/common/immsv_evt.c:6569 T8 Received:
IMMND_EVT_MDS_INFO (1) from 0
<143>1 2021-01-25T21:49:36.49548+11:00 PL-2-4 osafimmnd 4916 osafimmnd [meta
sequenceId="238"] 4916:imm/immnd/immnd_evt.c:12252 T2 **NCSMDS_DOWN 0**
<140>1 2021-01-25T21:49:36.495548+11:00 PL-2-4 osafimmnd 4916 osafimmnd [meta
sequenceId="239"] 4916:imm/immnd/immnd_evt.c:12315 WA SC Absence IS allowed:900
IMMD service is DOWN ex_immd_node_id=2020f
<141>1 2021-01-25T21:49:36.495582+11:00 PL-2-4 osafimmnd 4916 osafimmnd [meta
sequenceId="240"] 4916:imm/immnd/immnd_evt.c:12395 NO IMMD SERVICE IS DOWN,
HYDRA IS CONFIGURED => UNREGISTERING IMMND form MDS
<143>1 2021-01-25T21:49:36.495595+11:00 PL-2-4 osafimmnd 4916 osafimmnd [meta
sequenceId="241"] 4916:imm/immnd/immnd_mds.c:256 >> immnd_mds_unregister
...
<143>1 2021-01-25T21:49:37.49666+11:00 PL-2-4 osafimmnd 4916 osafimmnd [meta
sequenceId="275"] 4916:imm/common/immsv_evt.c:6569 T8 Received:
IMMND_EVT_MDS_INFO (1) from 0
<143>1 2021-01-25T21:49:37.496675+11:00 PL-2-4 osafimmnd 4916 osafimmnd [meta
sequenceId="276"] 4916:imm/immnd/immnd_evt.c:12290 T2 **IMMD RED_DOWN EVENT
2020f role=1 ==> ACT:0 SBY:0**
<140>1 2021-01-25T21:49:37.496744+11:00 PL-2-4 osafimmnd 4916 osafimmnd [meta
sequenceId="277"] 4916:imm/immnd/immnd_evt.c:12292 WA Both Active & Standby
DOWN, going to headless
<140>1 2021-01-25T21:49:37.496786+11:00 PL-2-4 osafimmnd 4916 osafimmnd [meta
sequenceId="278"] 4916:imm/immnd/immnd_evt.c:12315 WA SC Absence IS allowed:900
IMMD service is DOWN ex_immd_node_id=2020f
<141>1 2021-01-25T21:49:37.496809+11:00 PL-2-4 osafimmnd 4916 osafimmnd [meta
sequenceId="279"] 4916:imm/immnd/immnd_evt.c:12395 NO IMMD SERVICE IS DOWN,
HYDRA IS CONFIGURED => UNREGISTERING IMMND form MDS
<143>1 2021-01-25T21:49:37.496819+11:00 PL-2-4 osafimmnd 4916 osafimmnd [meta
sequenceId="280"] 4916:imm/immnd/immnd_mds.c:256 >> immnd_mds_unregister
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