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Server running out of disk space

When an Informer server runs low on disk, Informer keeps running but ElasticSearch stops processing requests, with no error. The result looks like a working system where queries never complete. Restarting Informer does not fix it. Informer requires at least 15% free disk space on the volume where ElasticSearch is installed.

Typical symptoms:

  • "Why don't my queries run?"
  • "I see old data, not new data, after refreshing."
  • "Queries never finish or load blank."

Docker​

Follow Docker log maintenance and disk-space recovery. If that does not recover enough space, add more disk to the server.

Windows​

The most common cause is Informer logs, stored in the logs folder under the Informer root install. See log rotation. Two ways to clear logs:

Delete the log directory (most thorough):

  1. Stop the Informer service and all Node.js processes (confirm in Task Manager).
  2. With nothing running, delete the entire logs directory.
  3. Confirm 15% or more free disk space, then restart Informer.

Flush with Pm2 (can run while Informer is up, but leaves some data):

  1. Log in as the account that installed Informer (so the environment variables are present).
  2. Open an elevated PowerShell window.
  3. Run:
pm2 flush all

You can also remove other non-essential files, such as the contents of the Downloads folder. If recovery is not enough, add more disk. Once the ElasticSearch volume has more than 15% free, Informer regains full functionality.