eG Monitoring
 

Measures reported by LCDaemonStatusTest

A Linux cluster is a connected array of Linux computers or nodes that work together and can be viewed and managed as a single system. The redundancy of cluster components eliminates single points of failure. Linux clusters may be connected nodes of servers, storage devices or virtualized containers and it helps to reduce downtime and deliver high availability of IT services and mission-critical workloads. Compared to a single computer, a Linux cluster can provide faster processing speed, larger storage capacity, better data integrity, greater reliability and wider availability of resources. Clusters are usually dedicated to specific functions, such as load balancing, high availability, high performance, storage or large-scale processing.

A daemon is a program that runs in the background without requiring any user interaction. It is activated by the occurrence of a specific event or condition. A daemon supervises the system or provides functionality to other processes. Daemon ensures that the operating system runs properly. When a daemon is not active or is not enabled, then, a few processes could not be started/stopped or user requests could not be processed. This may lead to processing lag and also largely affect the functioning of the Linux system. To avoid such processing lag and to ensure the smooth functioning of the Linux system, it is imperative to proactively monitor the status of each daemon on the target Linux cluster. The LCDaemonStatusTest helps administrators in this regard!

This test auto-discovers the daemons on the target Linux cluster and for each daemon, this test reports the current status. This test also reveals if the daemon is enabled or disabled. Using this test, administrators can identify inactive daemons and initiate troubleshooting well before users complain of issues on the Linux cluster.

Outputs of the test : One set of results for each daemon executing on the target Linux cluster being monitored.

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
Is_daemon_active Indicates the current status of this daemon.   The values reported by this measure and its numeric equivalents are mentioned in the table below:

Measure Value Numeric Value
Active 100
Inactive 0


Note:

By default, this measure reports the above-mentioned Measure Values to indicate the current status of the daemon. The graph of this measure however, is represented using the numeric equivalents only i.e., 0 or 100.
Is_daemon_enabled Indicates whether this daemon is enabled or not.   The values reported by this measure and its numeric equivalents are mentioned in the table below:

Measure Value Numeric Value
Enabled 100
Disabled 0


Note:

By default, this measure reports the above-mentioned Measure Values to indicate whether the daemon is enabled or not. The graph of this measure however, is represented using the numeric equivalents only i.e., 0 or 100.