Coyote Point Systems Equalizer Bedienungsanleitung PDF herunterladen (Seite 7)

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VLB Logging

Equalizer VLB writes a number of messages to the equalizer log (Equalizer > Monitoring > Event Logs); these

messages are described below (timestamps normally displayed at the beginning of each line have been omitted):

For example, the following series of messages was logged when a spike of CPU activity reduced availability for one

virtual machine (server) in a VLB cluster:

VLB: probe: Server 192.168.1.51 VLB state changed from 0 to 100

VLB: probe: Server 192.168.1.51 VLB state changed from 100 to 20

VLB: probe: Server 192.168.1.51 VLB state changed from 20 to 0

VLB: probe: Server 192.168.1.51 VLB state changed from 0 to 1

VLB: probe: Server 192.168.1.51 VLB state changed from 1 to 100

As the messages indicate, Equalizer continually adjusts to changing conditions on the server. Without VLB agents,

Equalizer would not have known about the CPU utilization spike since the ‘ping time’ of the server IP did not

change during this period.

Logged into VC or ESX successfully

Failed to connect to VC or ESX

Failed to log into VC or ESX

The messages above indicate that Equalizer attempted to log into the Virtual Center or ESX

Server IP configured on the VLB tab. The status of the first login attempt after a reboot is

recorded in the log; subsequent attempts are only logged if the login status changed since the

last login. For example, the first successful login attempt is logged; subsequent successful

attempts are not recorded. Likewise, the first failure is recorded; no further messages are logged

during subsequent attempts until a login attempt succeeds.

VLB: probe: Server IP_address VLB state changed from old_value to new_value

A message in the above format indicates that the VLB agent return value for the virtual machine

at IP_address has changed since the last probe of the Virtual Center (or ESX Server). Both the

previous return value (old_value) and the latest return value (new_value) are logged in the

message.

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Coyote Point Systems Equalizer Bedienungsanleitung Seite 7