Manual Chapter : Pool member status events

Applies To:

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BIG-IQ Centralized Management

  • 8.2.0, 8.1.0, 8.0.0
Manual Chapter

Pool member status events

Pool member events and alerts indicate the status of a pool member. You can see these events and alerts in the charts of the application properties screen (
Applications
APPLICATIONS
<Application Name>
<Application HTTP Service>
) and in the Local Traffic dashboards (
Monitoring
DASHBOARDS
Local Traffic
). You can also view alerts in the Active Alerts and Alert History screens (
Applications
ALERT MANAGEMENT
).
Alert
Description
Indication
Default Thresholds
Impact
Pool Member Offline
The pool member (server) is offline as a result of status or configuration changes. The system then updates the pool member status with one of the following messages:
  • Online- The pool member is back online.
  • Disabled- The pool member is disabled.
  • Pool monitor disabled- The pool member monitor, which is configured on the BIG-IP system, is disabled.
  • Pool member deleted- The pool member has been deleted from the pool's configuration.
Pool member issues can lead to increases in application response time, server-side round trip time (RTT), incomplete transactions, and server errors.
Critical:
Offline
Prolonged impact on application performance might require the addition of a new pool member.
Pool health
The pool member response to the server.
Critical:
All pool members in a pool are unresponsive
Moderate:
At least one, but not all, members in a pool are unresponsive
Cleared:
All pool members are back online, or the virtual server was deleted.