Manage Elasticsearch Disk Utilization

Issue

You may observe that the Pulse data directory is filling up due to large Elasticsearch indices under:

In some cases, individual indices can consume hundreds of GBs, causing the disk utilization on the Pulse node to reach critical levels.

Symptoms

You may observe:

• High disk utilization on the Pulse node

• Elasticsearch indices consuming excessive storage

• Pulse instability due to low available disk space

Example:

Sample output:

Immediate Resolution: Identify and Delete Large Elasticsearch Indices

Step 1: List Elasticsearch Indices

Run the following command to identify large indices:

Example output:

Step 2: Delete High Disk Utilization Indices

After identifying unnecessary or older large indices, delete them using:

Example:

Result

After deleting the large indices:

• Disk utilization reduced significantly

• Elasticsearch storage usage returned to stable levels

Example outcome:

• Disk utilization reduced to approximately 56%