devstack

multi node installation takes the services for lastly installed node

Asked by Ashokkumar c

I tried to install multi node openstack using devstack.
After the server node installation I check the services and everything is working fine.

I Installed second node with shared setting as mentioned in the script (sql and rabbitmq ip).
I checked the services in dashboard of server node and it shows only the services running in second node and the system overview show the capacity of second node only (It should show the sum of both nodes ).

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This question was originally filed as bug #910573.

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Ashokkumar c (ashokcse) said : 		#1

I believe its time to start separate script for installing additional nodes to make thing more clear

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Anthony Young (sleepsonthefloor) said : 		#2

You need to properly configure ENABLED_SERVICES on the second host. For FlatDHCP (the default) with compute ENABLED_SERVICES=n-cpu is probably all you need. If you don't do this, the second run of stack.sh on the second host will drop and rebuild the mysql db.

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Ashokkumar c (ashokcse) said : 		#3

Server node1- all services enabled (default)
node2 - only n-cpu service (ENABLED_SERVICES=n-cpu)

Before installing the second node ,I checked the service page of dashboard and it show the physical resources of server node1(which is 40gb store & 2gb RAM) in system stats for nova-compute.

After that I installed the second server and saw the dashboard, it shows only the physical resources of server node 2(which is 20gb store & 1gb RAM) in system stats for nova-compute, and compute(node 2 ip).

After the installation of second node, instance launching ends with error stats.

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Launchpad Janitor (janitor) said : 		#4

This question was expired because it remained in the 'Open' state without activity for the last 15 days.