Corosync settings on AWS

[stephenmogg]

Is it possible to validate the values used during configuration of the cluster on AWS. I deployed 2 weeks ago, and found things like the token and consensus values seemed to be set at older best practice setting values.

The current best practice values can be found here ... https://docs.aws.amazon.com/sap/latest/sap-hana/sap-hana-on-aws-cluster-configuration.html

May be worth checking the timeouts for the SAP resources too. https://docs.aws.amazon.com/sap/latest/sap-hana/sap-hana-on-aws-cluster-resources.html

If you need specifics, let me know.

[yeoldegrove]

@stephenmogg

https://docs.aws.amazon.com/sap/latest/sap-hana/sap-hana-on-aws-cluster-configuration.html mentions:

        token: 30000
        consensus: 36000

Something similar to https://github.com/SUSE/ha-sap-terraform-deployments/blob/8f3cc1846638d661c3fec3a714cd84de5fd7abf3/pillar_examples/automatic/netweaver/cluster.sls#L34-L41 would be needed.

Are you up to do a commit or shall I take over?

After a first look, I would say that the resource timeouts are fine.

[yeoldegrove]

@stephenmogg ping?

[stephenmogg]

Hi, Yes I'll try and submit this week.

[yeoldegrove]

For completeness, the SUSE reference: https://documentation.suse.com/sbp/all/html/SLES4SAP-hana-sr-guide-perfopt-15-aws/index.html#id-1.11.6.5.6

[yeoldegrove]

fixed in #869