[ClusterLabs] group resources without order behavior / monitor timeout smaller than interval?

[Stefan Bauer]

Hi,

I'm trying to understand some cluster internals and would be happy to get some best practice recommendations:


monitor interval and timeout: shouldn't timeout value always be smaller than interval to avoid another check even though the first is not over yet?

Additionally i would like to use the group function to put all my VMS (ocf:heartbeat:VirtualDomain) in one group and colocate the group with the VIP and my LVM-volume. Unfortunately group function starts the resources in the listed order. So if i stop one VM, the following VMs are also stopped.

Right now I'm having the following configuration and want to make it less redundant:


# never let the stonith_service run on the host to stonith

location l_st_srv20 st_ipmi_srv20 -inf: srv20
location l_st_srv21 st_ipmi_srv21 -inf: srv21


# do not run resources on quorum only node
location loc_r_lvm_vg-storage_quorum_only_node r_lvm_vg-storage -inf: quorum_only_node
location loc_r_vm_ado01_quorum_only_node r_vm_ado01 -inf: quorum_only_node
location loc_r_vm_bar01_quorum_only_node r_vm_bar01 -inf: quorum_only_node
location loc_r_vm_cmt01_quorum_only_node r_vm_cmt01 -inf: quorum_only_node
location loc_r_vm_con01_quorum_only_node r_vm_con01 -inf: quorum_only_node
location loc_r_vm_con02_quorum_only_node r_vm_con02 -inf: quorum_only_node
location loc_r_vm_dsm01_quorum_only_node r_vm_dsm01 -inf: quorum_only_node
location loc_r_vm_jir01_quorum_only_node r_vm_jir01 -inf: quorum_only_node
location loc_r_vm_jir02_quorum_only_node r_vm_jir02 -inf: quorum_only_node
location loc_r_vm_prx02_quorum_only_node r_vm_prx02 -inf: quorum_only_node
location loc_r_vm_src01_quorum_only_node r_vm_src01 -inf: quorum_only_node


# colocate ip with lvm storage
colocation col_r_Failover_IP_r_lvm_vg-storage inf: r_Failover_IP r_lvm_vg-storage


# colocate each VM with lvm storage
colocation col_r_vm_ado01_r_lvm_vg-storage inf: r_vm_ado01 r_lvm_vg-storage
colocation col_r_vm_bar01_r_lvm_vg-storage inf: r_vm_bar01 r_lvm_vg-storage
colocation col_r_vm_cmt01_r_lvm_vg-storage inf: r_vm_cmt01 r_lvm_vg-storage
colocation col_r_vm_con01_r_lvm_vg-storage inf: r_vm_jir01 r_lvm_vg-storage
colocation col_r_vm_con02_r_lvm_vg-storage inf: r_vm_con02 r_lvm_vg-storage
colocation col_r_vm_dsm01_r_lvm_vg-storage inf: r_vm_dsm01 r_lvm_vg-storage
colocation col_r_vm_jir01_r_lvm_vg-storage inf: r_vm_con01 r_lvm_vg-storage
colocation col_r_vm_jir02_r_lvm_vg-storage inf: r_vm_jir02 r_lvm_vg-storage
colocation col_r_vm_prx02_r_lvm_vg-storage inf: r_vm_prx02 r_lvm_vg-storage
colocation col_r_vm_src01_r_lvm_vg-storage inf: r_vm_src01 r_lvm_vg-storage


# start lvm storage before VIP

order ord_r_lvm_vg-storage_r_Failover_IP inf: r_lvm_vg-storage r_Failover_IP


# start lvm storage before each VM
order ord_r_lvm_vg-storage_r_vm_ado01 inf: r_lvm_vg-storage r_vm_ado01
order ord_r_lvm_vg-storage_r_vm_bar01 inf: r_lvm_vg-storage r_vm_bar01
order ord_r_lvm_vg-storage_r_vm_cmt01 inf: r_lvm_vg-storage r_vm_cmt01
order ord_r_lvm_vg-storage_r_vm_con01 inf: r_lvm_vg-storage r_vm_con01
order ord_r_lvm_vg-storage_r_vm_con02 inf: r_lvm_vg-storage r_vm_con02
order ord_r_lvm_vg-storage_r_vm_dsm01 inf: r_lvm_vg-storage r_vm_dsm01
order ord_r_lvm_vg-storage_r_vm_jir01 inf: r_lvm_vg-storage r_vm_jir01
order ord_r_lvm_vg-storage_r_vm_jir02 inf: r_lvm_vg-storage r_vm_jir02
order ord_r_lvm_vg-storage_r_vm_prx02 inf: r_lvm_vg-storage r_vm_prx02
order ord_r_lvm_vg-storage_r_vm_src01 inf: r_lvm_vg-storage r_vm_src01

any help is greatly appreciated.

thank you.

Stefan

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