WLM not resizing vpars on the fly problem

[Eric Kaiser_1]

I am trying to setup WLM on a box which contains 2 vpars, each vpar has 1 cpu bound with a total of 2 cpu'd unbound/floating. I can manually move them between vpars but after configuring WLM I can not get WLM to automatically move the cpus as needed.

In the msglog I have the following error after it says its ready to receive data:
No data received from partition par1
No data received from partition par2

My wlmpard config file is as follows:
vpar {
partitions = par1 : host1, par2 : host2;
interval = 5;
weight = par1: 1;
port = 3701;
wlmpardstats_size_limit = 3;
}

I appreicate any help someone with experince in this can provide. Thanks in advance..

Eric

[Scott Cox_1]

Hi, Eric

I know the WLM team helped you directly.
I wanted to post a message here as well to let other readers know what was happening.

As you know, when configuring WLM to manage partitions, there are WLM configuration files on each partition. By default, the WLM instance on each partition works on a 60-second interval. In one partition, you also need a WLM global arbiter (wlmpard) configuration file.

If the interval for wlmpard is smaller than the intervals for the WLM instances, the msglog will be filled with entries of the form you saw:

No data received from partition par1

So, it is recommended that the wlmpard's configuration file set its interval to a value greater than any of the intervals used by the WLM instances.

The example WLM configurations available from http://www.hp.com/go/wlm have been updated to stress this point. Also, the intervals have been shortened so that CPU movement occurs more quickly.

Scott