[ClusterLabs] [EXT] How to delete a node, really, really?

[Windl, Ulrich]

Hi!

Did you restart Corosync as well?

Kind regards,
Ulrich Windl

> -----Original Message-----
> From: Users <users-bounces at clusterlabs.org> On Behalf Of Kadlecsik József
> via Users
> Sent: Thursday, December 12, 2024 12:04 PM
> To: users at clusterlabs.org
> Cc: Kadlecsik József <kadlecsik.jozsef at wigner.hu>
> Subject: [EXT] [ClusterLabs] How to delete a node, really, really?
> 
> Hello,
> 
> During an upgrade it turned out that our old node id-s (generated
> many-many years ago) are not accepted anymore. So we renumbered the
> nodes
> and since then have been unable to delete the old id-s from the system.
> 
> Corosync knows the new id-s only and work fine:
> 
> # corosync-cmapctl | grep 323224576
> #
> 
> Pacemaker knows the new id-s according to the config file and all traces
> are deleted from the cib as well:
> 
> # cibadmin --query|grep 323224576
> #
> 
> Everything seems ok. However, as soon as just corosync stopped or started
> on a standby node, the old ghosts come back:
> 
> # corosync-cmapctl | grep 323224576
> #
> # cibadmin --query|grep 323224576
>       <node id="3232245767" uname="atlas6"/>
>       <node id="3232245763" uname="atlas2"/>
>       <node id="3232245764" uname="atlas3"/>
>       <node id="3232245766" uname="atlas5"/>
>     <node_state id="3232245767" uname="atlas6" in_ccm="false"
> crmd="offline" expected="down" crm-debug-
> origin="post_cache_update"/>
>     <node_state id="3232245763" uname="atlas2" in_ccm="false"
> crmd="offline" expected="down" crm-debug-
> origin="post_cache_update"/>
>     <node_state id="3232245764" uname="atlas3" in_ccm="false"
> crmd="offline" expected="down" crm-debug-
> origin="post_cache_update"/>
>     <node_state id="3232245766" uname="atlas5" in_ccm="false"
> crmd="offline" expected="down" crm-debug-
> origin="post_cache_update"/>
> 
> How could the old node ids be removed completely? crm_node -R does not
> help, deleting by cibadmin does not help. What is the proper way to
> cleanup the state?
> 
> Best regards,
> Jozsef
> --
> E-mail : kadlecsik.jozsef at wigner.hun-ren.hu
> Address: Wigner Research Centre for Physics
>          H-1525 Budapest 114, POB. 49, Hungary
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