Hi Mohan Kanakam,
This is detail steps
1.start SCs
2.start PLs.
3.enable network delay betwen SC1 and PL4
run cmd in PL4
tc qdisc add dev eth0 root handle 1: htb default 0
tc class add dev eth0 parent 1: classid 1:1 htb rate 100mbit prio 2
tc filter add dev eth0 parent 1: protocol ip handle 800::1 prio 1 u32 flowid
1:1 match ip dst 10.0.3.101
tc qdisc add dev eth0 parent 1:1 handle 100: netem delay 1000ms
4.block traffic SC1 and PL4
-waiting for IMM State : IMM_SERVER_SYNC_PENDING --> IMM_SERVER_SYNC_CLIENT by
using cmd on PL4
eg: timeout 120 tail -n 0 -F /var/log/syslog | (grep -m 1 "SERVER STATE:
IMM_SERVER_SYNC_PENDING --> IMM_SERVER_SYNC_CLIENT"; pkill -P $$ timeout)
-block traffic SC1 and PL4
5.disable network delay betwen SC1 and PL4
run cmd in PL4
tc filter del dev eth0 parent 1: prio 1 handle 800::1 u32
6.unblock traffic SC1 and PL4.
Note :SC1 and PL4 sycn very quickly cause cmd waiting for IMM State :
IMM_SERVER_SYNC_PENDING --> IMM_SERVER_SYNC_CLIENT does not work so
we need to step enable network delay betwen SC1 and PL4
I hope it could help you to reproduce this case.
Regards,
Tran Ngoc Son
---
** [tickets:#3323] imm: PL sync failed after reconnected with SC**
**Status:** assigned
**Milestone:** 5.22.11
**Created:** Wed Oct 05, 2022 09:37 AM UTC by Son Tran Ngoc
**Last Updated:** Fri Oct 07, 2022 11:17 AM UTC
**Owner:** Son Tran Ngoc
Active SC1 and PL4 lost connect suddenly ( may be due to the environment
reason),they re-established contact but PL4 sync failed due to PL4 did not
update active SC1 information and discard message from IMMD SC1
PL4 sync failed log
2022-09-22 04:07:05.230 DEBUG: Syncing node PL-4 (timeout=120)
2022-09-22 04:08:06.325 WARNING: waiting more than 60 sec for node PL-4 to sync
PL4 discard message from SC1 log
2022-09-22 04:07:08.406 PL-4 osafimmnd[354]: WA DISCARD message from IMMD 2010f
as ACT:0 SBY:2020f
2022-09-22 04:07:09.013 PL-4 osafimmnd[354]: message repeated 243 times: [ WA
DISCARD message from IMMD 2010f as ACT:0 SBY:2020f]
step to reproduce.
1.start SCs, PLs.
2.Block traffic SC1 and PL4 ( make sure block traffic after IMM State :
IMM_SERVER_SYNC_PENDING --> IMM_SERVER_SYNC_CLIENT ).
3.Unblock traffic SC1 and PL4.
---
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