Cluster Statistics

Within the Cluster section, you can see the platform monitoring information on the following topics:

To improve graphs usage experience, you can: specify the required interval by adjusting the Start/End Date and clicking Refresh

  • hide some graphs by clicking on the appropriate records in the legend
  • hover over the chart to view the exact values for the moment

During the platform upgrade, you may need to Activate Maintenance Mode (with the same-named button at the top of the section) to ensure that no user-called processes are interrupted by the performed activities.

jca cluster statistics

After confirmation via the pop-up, the dashboard becomes unavailable, redirecting to your “under maintenance” page; herewith, end-user applications are not affected. Click the button one more time to Deactivate Maintenance Mode.

Cluster Load History

This graph allows to review the load on your cluster:

  • RAM of Containers (red line) - memory consumption by containers
  • All used RAM (green line) - total memory used
  • RAM w/o buffers (orange line) - consumed memory that cannot be reused (RAM of Containers with all memory leaks, overheads for system processes, etc.)

jca cluster load history

Based on the obtained values, you can estimate how many additional environments your platform can handle. Use the following formula:

Number of Extra Environments = (80% - RAM w/o Buffers) / Average Load Usage per Environment

Here, 80% is the maximum allowed load for all containers. By subtracting the RAM w/o Buffers, you can find out how much the load can be increased.

Average Load Usage per Environment = RAM of Containers / Active Environments

To get Active Environments, navigate to the Cluster > Environments section, filter by the Running status, and see the number at the bottom of the list.

active environments count


Calculating the Number of Extra Environments due to the screenshots provided above:

RAM w/o Buffers = 46% RAM of Containers = 38% Number of Running Environments = 265 Average Load Usage per Environment: 38% / 265 = 0,14 % Number of Extra Environments: (80% - 46%) / 0,14% = 242

So, in our case, extra 242 environments can be handled by the platform.

Environments Statistics

Here, you can analyze the number of performed application deployments (Deploys) and total environments count (Envs) on the platform.

jca environments statistics


The frame shows the statistics on the total number of nodes for the different container statuses: Running, Stopped, Suspended, and Other.

jca containers statistics

Stacks Load

This diagram shows the stacks, which are currently used on the platform, as well as their respective number. Additionally, you can filter the result by container statuses (Total, Launching, Down, Sleep, Running).

jca stacks load

For the convenience of analysis, graphs are grouped by types: custom Docker containers (dark gray), load balancers (green), application servers (blue), databases (orange) and other stacks (light gray).

What’s next?