Zabbix Monitoring

Our monitoring service can be accessed at zabbix.pleiades.uni-wuppertal.de with the credentials “pleiades” and “pleiades”. Zabbix collects and various information regarding current and past resource usage and quotas.

Dashboard

After login you are typically greeted by the user overview dashboard:

If it is not selected, you can access it by clicking Monitoring > Dashboard > All dashboards > user overview.

The overview dashboard collects a couple of aggregated metrics and you can select the time frame of presented information on the top right. The visible graphs are:

• Total Cluster Load: Average and maximum load on workernodes. This can give you a hint on how busy the CPUs are on all nodes
• Dcache Mover Usage
• Beegfs Quotas in percent and Beegfs Group Quotas: Information on how much space is available on BeeGFS per group.
• Effective Share used by User Group: Effective usage of each group as reported by Slurm. Usage resets every month.
• SLURM Allocated Cores by Group: Current allocation of Cores per group as reported by Slurm.

Detailed Information

To get detailed information about a single node, e.g. to see if a node you are currently working on is using its resources, you can go to the Monitoring > Graphs tab.

First you need to select a group of hosts, e.g. Worker Nodes:

Within this group, you can select a specific host, e.g. wn21001 or gpu21001:

The Graph drop down menu provides a range of metrics to investigate, e.g. CPU or Memory utilization. A graph in the bottom represents the data for this particular host with the usual options to specify a time frame: