CVM 4.1 Master Role
Created: 24 Apr 2010 | Updated: 28 Jul 2010 | 2 comments
This issue has been solved. See solution.
Is there any way to choose the next CVM master?
Who would become the next CVM master when vsfcbe4 stops it's CVM SG?
Can I change a config file to make, let us say, sjmemfs07 the next CVM master?
Here is my nidmap as fed from vxclustadm:
# vxclustadm nidmap
Name CVM Nid CM Nid State
vfscbe1-prod 0 0 Joined: Slave
vfscbe2-prod 1 1 Joined: Slave
vfscbe3-prod 11 2 Out of Cluster
vfscbe4-prod 2 3 Joined: Master
vfscbe5-prod 3 4 Joined: Slave
sjmemfs01 4 5 Joined: Slave
sjmemfs02 6 6 Joined: Slave
sjmemfs03 8 7 Joined: Slave
sjmemfs04 7 8 Out of Cluster
sjmemfs05 5 9 Joined: Slave
sjmemfs06 10 10 Joined: Slave
sjmemfs07 9 11 Joined: Slave
sjmemfs08 12 12 Out of Cluster
sjmemfs09 13 13 Out of Cluster
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Is there a way to change the neighborID? Does the neighborID represent who will the next CVM master?
# vxclustadm -v nodestate
Can I change this?
somehow I missed this post...
well there is no file where you can change this information......
Usually the next CVM master is decided with the CVM Node ID, currently in your scenario vfscbe4-prod is master server, if that fails, the next lower CVM Node ID should take over , so I would expect vfscbe1-prod since that has lowest CVM Node ID.
But trust me I have seen inconsistency in this behaviour, I have seen lower LLT node ID taking this behavior... & for sure this is unconfigurable..
Gaurav
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