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Can someone tell me what "Current load average" is?

scmiles
We have a 2 node HA cluster, each box is a dual hexa-core 8GB RAM system. Dashboard graphs show CPU at 17%, RAM at 27%, but in the HA live log I see these warnings: 
2011:10:27-00:03:16 secgate-an-2 ha_daemon[6011]: id="38A1" severity="warn" sys="System" sub="ha" name="Current load average 12.58 is high!"

2011:10:27-00:03:17 secgate-an-1 ha_daemon[5977]: id="38A1" severity="warn" sys="System" sub="ha" name="Current load average 12.58 of node 2 is high, please check you system!"

2011:10:27-00:06:28 secgate-an-1 ha_daemon[5977]: id="38A1" severity="warn" sys="System" sub="ha" name="Current load average 11.16 is high!"

2011:10:27-00:06:29 secgate-an-2 ha_daemon[6011]: id="38A1" severity="warn" sys="System" sub="ha" name="Current load average 11.16 of node 1 is high, please check you system!"

2011:10:27-06:51:08 secgate-an-1 ha_daemon[5977]: id="38A1" severity="warn" sys="System" sub="ha" name="Current load average 15.65 is high!"

2011:10:27-06:51:10 secgate-an-2 ha_daemon[6011]: id="38A1" severity="warn" sys="System" sub="ha" name="Current load average 15.65 of node 1 is high, please check you system!"

2011:10:27-06:52:09 secgate-an-1 ha_daemon[5977]: id="38A1" severity="warn" sys="System" sub="ha" name="Current load average 10.80 is high!"


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    Good question.

    If there are, for example, 10 processes running, but only on two cores, than you have a load of 10, but the average of all 12 cores (in you case) is only ~17% because only two of the 12 available CPU's are used.

    You can connect to your ASG over SSH and execute "top". If you press "1" you will see all the singel cores of the CPU's.
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  • 0
    Good question.

    If there are, for example, 10 processes running, but only on two cores, than you have a load of 10, but the average of all 12 cores (in you case) is only ~17% because only two of the 12 available CPU's are used.

    You can connect to your ASG over SSH and execute "top". If you press "1" you will see all the singel cores of the CPU's.
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