[slurm-users] Slurmdbd High Availability

[Brian Andrus]

I think you mean both slurmctld servers are pointing the one slurmdbd 
server.

Ole is right about the usefulness of HA, especially on slurmdbd, as 
slurm will cache the writes to the database if it is down.

To do what you want, you need to look at configuring your database to be 
HA. That is a different topic and would be dictated by what database 
setup you are using. Understand the the backend database is a tool used 
by slurm and not part of slurm. So any HA in that are needs to be done 
by the database.

Once that is done, merely have 2 separate slurmdbd servers, each 
pointing at the HA database. One would be primary and the other a 
failover (AccountingStorageBackupHost). Although, technically, they 
would both be able to be active at the same time.

Brian Andrus

On 4/13/2023 2:49 AM, Shaghuf Rahman wrote:
> Hi,
>
> I am setting up Slurmdb in my system and I need some inputs
>
> My current setup is like
> server1 : 192.168.123.12(slurmctld)
> server2: 192.168.123.13(Slurmctld)
> server3: 192.168.123.14(Slurmdbd) which is pointing to both Server1 
> and Server2.
> database: MySQL
>
> I have 1 more server named as server 4: 192.168.123.15 which I need to 
> make it as a secondary database server. I want to configure this 
> server4 which will sync the database and make it either Active-Active 
> slurmdbd or Active-Passive.
>
> Could anyone please help me with the *steps* how to configure and also 
> how am i going to *sync* my *database* on both the servers simultaneously.
>
> Thanks & Regards,
> Shaghuf Rahman
>
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