Do you mean the second configuration scheme?
I think configuring `dbdhost=localhost` is the same as configuring ` DbdAddr
=nodeC` and ` DbdAddr =nodeD` on the two nodes respectively.
The key point is whether we should set the DbdBackupHost option and how it work?
发件人: Daniel Letai <d...@letai.org.il>
发送时间: 2025年2月19日 18:21
收件人: slurm-users@lists.schedmd.com
主题: [slurm-users] Re: how to set slurmdbd.conf if using two slurmdb node with
HA database?
I'm not sure it will work, didn't test it, but could you just do
`dbdhost=localhost` to solve this?
On 18/02/2025 11:59, hermes via slurm-users wrote:
The deployment scenario is as follows:
nodeA nodeB
(slurmctld) (backup slurmctld)
| \-------------------------------/ |
| / \ |
nodeC nodeD
(slurmdbd) (backup slurmdbd)
(mysql) <--multi master replica--> (mysql)
Since the database is multi-master replicated, the slurmdbd should only talk to
the mysql on its own node.
In such case, how should we set the slurmdbd.conf? The conf file contains
options “DbdAddr”, “DbdHost” and “DbdBackupHost”.
Should they be consistent between nodeA-2 and nodeB-2? Such as:
DbdAddr = nodeC | DbdAddr = nodeC
DbdHost = nodeC | DbdHost = nodeC
DbdBackupHost = nodeD | DbdBackupHost = nodeD
StorageHost = nodeC | StorageHost = nodeD
Or maybe just set different conf and don’t use the “DbdBackupHost” like:
DbdAddr = nodeC | DbdAddr = nodeD
DbdHost = nodeC | DbdHost = nodeD
StorageHost = nodeC | StorageHost = nodeD
I’m quite confused about the usage of DbdAddr and DbdHost. What is the
difference between them and why only DbdHost has the backup one?
Another confusing point is how DbdBackupHost work. I guess It is slurmctld that
is responsible for selecting the available slurmdbd. Since the slurm.conf
already contains “AccountingStorageHost” and “AccountingStorageBackupHost”, why
we need set backupdbd again on slurmdbd side?
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