Hello Greg,
I have a two node set up. node1 is primary slurmctld + backup slurmdbd
and node2 is primary slurmdbd + backup slurmctld and mysql database host.
My concern is if node 2 goes down, then the backup slurmdbd will take
over, then what will happen ?
I have read that slurmctld can cache data, but what about slurmdbd? Not
sure.
I have intentionally used the slurmdbd + mariadb in the second node
because I didn't want to overload the primary slurmctld.
I hope you all are getting the picture of how my set up is.
Thanks,
RC
On 11/1/2022 10:40 AM, Greg Wickham wrote:
Hi Richard,
Slurmctld caches the updates until slurmdbd comes back online.
You can see how many records are pending for the database by using the
“sdiag” command and looking for “DBD Agent queue size”.
If this number grows significantly it means that slurmdbd isn’t available.
-Greg
On 01/11/2022, 07:23, "slurm-users"
<slurm-users-boun...@lists.schedmd.com> wrote:
Hi,
Just for my info, I would like to know what happens when SlurmDBD loses
connection to the backend Database, for ex, MariaDB.
Does it cache the accounting info and keep them till the DB comes back
up ?, or does it panic and shut down ?
Thank you,
RC.
