Re: [devel] Regarding FMS_RELAXED_NODE_PROMOTION in fmd.conf

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Hi

I tried stopping also , basically when quorum fails that's is 2 Outta 3 nodes are not reachable then node goes to reboot .

If etcdctl command fails when quorum fails .which is causing issue .

Regards
Rakesh
________________________________
From: Thang Nguyen <tha...@en...>
Sent: Wednesday, July 17, 2024 08:29
To: Bangalore Ramesh, Rakesh <rak...@rb...>; ope...@li... <ope...@li...>
Subject: [EXTERNAL] RE: Regarding FMS_RELAXED_NODE_PROMOTION in fmd.conf

Hi Rakesh,
>From my understanding, if export the below in fmd.conf
export FMS_RELAXED_NODE_PROMOTION=1

The SC will not be rebooted if it lost connection to etcd consensus service but still see the peer SC.
Could you share the fmd.conf and all the syslog ?

B.R/
Thang D Nguyen

-----Original Message-----
From: Bangalore Ramesh, Rakesh <rak...@rb...>
Sent: Friday, July 12, 2024 1:49 PM
To: ope...@li...
Subject: [devel] Regarding FMS_RELAXED_NODE_PROMOTION in fmd.conf

CAUTION - EXTERNAL EMAIL

Hi All,

I am trying to avoid opensaf bringing node down cause of no quorum with etcd cluster .

I saw this config in fmd. eventhough i have enabled it ,

# Default behaviour is not to allow promotion of this node to Active # unless a lock can be obtained, if split brain prevention is enabled.
# Uncomment the next line to allow promotion of this node at cluster startup, # if a peer SC can be seen and we have a lower node ID, in the event the # consensus service is not available.
# Also if the consensus service is down, but a peer SC can be seen, # then an active SC may remain active.
# This mode should not be used together with the roaming SC feature # Default is 0 #export FMS_RELAXED_NODE_PROMOTION=0

opensaf fails with error given below -

Jul 11 23:24:15 rakeshgr01 osafamfd[6898]: NO (KeyValue::Execute): Executed '/opt/opensaf/osaf-etcd3.plugin unlock "SC-1"', returning 2 Jul 11 23:24:15 rakeshgr01 osafamfd[6898]: WA Unlock failed (6) Jul 11 23:24:15 rakeshgr01 osafamfd[6898]: ER Failed to demote this node from consensus service Jul 11 23:24:15 rakeshgr01 osafimmnd[5987]: WA Failed to retrieve search continuation, client died ?
Jul 11 23:24:15 rakeshgr01 osafimmnd[5987]: NO Implementer disconnected 4 <21, 2010f> (safAmfService) Jul 11 23:24:15 rakeshgr01 osafimmnd[5987]: NO Implementer (applier) connected: 13 (@safAmfService2010f) <21, 2010f>

Need help , how to use this config , so even if quorum is failed , I need the instance to not go from reboot .

Regards,
Rakesh

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