*Hello folks.
I try to setup four ip balanced nodes but, I didn't found the right way to
balance load between nodes when some of them are filed.
I've done:*
[r...@node1 ~]# crm configure show
node node1
node node2
node node3
node node4
primitive ClusterIP ocf:heartbeat:IPaddr2 \
params ip="10.138.10.252" cidr_netmask="32"
clusterip_hash="sourceip-sourceport" \
op monitor interval="30s"
clone StreamIP ClusterIP \
meta globally-unique="true" *clone-max="8"
clone-node-max="2"*target-role="Started" notify="true" ordered="true"
interleave="true"
property $id="cib-bootstrap-options" \
dc-version="1.0.9-0a40fd0cb9f2fcedef9d1967115c912314c57438" \
cluster-infrastructure="openais" \
expected-quorum-votes="4" \
no-quorum-policy="ignore" \
stonith-enabled="false"
*When all the nodes are up and running:*
[r...@node1 ~]# crm status
============
Last updated: Thu Oct 28 17:26:13 2010
Stack: openais
Current DC: node2 - partition with quorum
Version: 1.0.9-0a40fd0cb9f2fcedef9d1967115c912314c57438
4 Nodes configured, 4 expected votes
2 Resources configured.
============
Online: [ node1 node2 node3 node4 ]
Clone Set: StreamIP (unique)
ClusterIP:0 (ocf::heartbeat:IPaddr2): Started node1
ClusterIP:1 (ocf::heartbeat:IPaddr2): Started node1
ClusterIP:2 (ocf::heartbeat:IPaddr2): Started node2
ClusterIP:3 (ocf::heartbeat:IPaddr2): Started node2
ClusterIP:4 (ocf::heartbeat:IPaddr2): Started node3
ClusterIP:5 (ocf::heartbeat:IPaddr2): Started node3
ClusterIP:6 (ocf::heartbeat:IPaddr2): Started node4
ClusterIP:7 (ocf::heartbeat:IPaddr2): Started node4
*
Everything is OK and each node takes 1/4 of all traffic - wonderfull.
But we become to 25% traffic loss if one of them goes down:
*
[r...@node1 ~]# crm node standby node1
[r...@node1 ~]# crm status
============
Last updated: Thu Oct 28 17:30:01 2010
Stack: openais
Current DC: node2 - partition with quorum
Version: 1.0.9-0a40fd0cb9f2fcedef9d1967115c912314c57438
4 Nodes configured, 4 expected votes
2 Resources configured.
============
Node node1: standby
Online: [ node2 node3 node4 ]
Clone Set: StreamIP (unique)
* ClusterIP:0 (ocf::heartbeat:IPaddr2): Stopped
ClusterIP:1 (ocf::heartbeat:IPaddr2): Stopped *
ClusterIP:2 (ocf::heartbeat:IPaddr2): Started node2
ClusterIP:3 (ocf::heartbeat:IPaddr2): Started node2
ClusterIP:4 (ocf::heartbeat:IPaddr2): Started node3
ClusterIP:5 (ocf::heartbeat:IPaddr2): Started node3
ClusterIP:6 (ocf::heartbeat:IPaddr2): Started node4
ClusterIP:7 (ocf::heartbeat:IPaddr2): Started node4
*I found the solution (to prevent loosing) by set clone-node-max to 3*
[r...@node1 ~]# crm resource meta StreamIP set clone-node-max 3
[r...@node1 ~]# crm status
============
Last updated: Thu Oct 28 17:35:05 2010
Stack: openais
Current DC: node2 - partition with quorum
Version: 1.0.9-0a40fd0cb9f2fcedef9d1967115c912314c57438
4 Nodes configured, 4 expected votes
2 Resources configured.
============
*Node node1: standby*
Online: [ node2 node3 node4 ]
Clone Set: StreamIP (unique)
* ClusterIP:0 (ocf::heartbeat:IPaddr2): Started node2
ClusterIP:1 (ocf::heartbeat:IPaddr2): Started node3*
ClusterIP:2 (ocf::heartbeat:IPaddr2): Started node2
ClusterIP:3 (ocf::heartbeat:IPaddr2): Started node2
ClusterIP:4 (ocf::heartbeat:IPaddr2): Started node3
ClusterIP:5 (ocf::heartbeat:IPaddr2): Started node3
ClusterIP:6 (ocf::heartbeat:IPaddr2): Started node4
ClusterIP:7 (ocf::heartbeat:IPaddr2): Started node4
*The problem is that nothing gonna changed when node1 back online.*
[r...@node1 ~]# crm node online node1
[r...@node1 ~]# crm status
============
Last updated: Thu Oct 28 17:37:43 2010
Stack: openais
Current DC: node2 - partition with quorum
Version: 1.0.9-0a40fd0cb9f2fcedef9d1967115c912314c57438
4 Nodes configured, 4 expected votes
2 Resources configured.
============
Online: [ *node1* node2 node3 node4 ]
Clone Set: StreamIP (unique)
* ClusterIP:0 (ocf::heartbeat:IPaddr2): Started node2
ClusterIP:1 (ocf::heartbeat:IPaddr2): Started node3*
ClusterIP:2 (ocf::heartbeat:IPaddr2): Started node2
ClusterIP:3 (ocf::heartbeat:IPaddr2): Started node2
ClusterIP:4 (ocf::heartbeat:IPaddr2): Started node3
ClusterIP:5 (ocf::heartbeat:IPaddr2): Started node3
ClusterIP:6 (ocf::heartbeat:IPaddr2): Started node4
ClusterIP:7 (ocf::heartbeat:IPaddr2): Started node4
*
There are NO TRAFFIC on node1.
If I back clone-node-max to 2 - all nodes revert to the original state.*
So, My question is How to avoid such "hand-made" changes ( or is it possible
to automate* clone-node-max* adjustments)?
Thanks!
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