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Accessing logs

Catena SE logs help you diagnose ingest, transcoding, and playback issues. They are available in the web UI via the Logs menu item on the main page.

Logs page

Where logs come from

The log view aggregates messages from Catena SE components:

  • Central — channel management, configuration, API, load balancing;
  • streamers (Media Server) — source ingest, transcoder, archive recording, stream delivery to clients.

When you search by channel name, you see events for that channel across all cluster nodes.

Searching logs (LogQL)

You can search logs to diagnose failures and anomalies using LogQL-style queries.

Typical use cases:

  • events for a specific channel — specify the stream name, e.g. media:multicast;
  • ingest or publish errors — filter by level and message text;
  • incident timeline — select a time range and filter by stream or node.

Example query by channel name:

media:multicast

This shows all log entries for the stream multicast.

Log search

When to use logs

Logs are useful when:

  • a channel does not start or drops (check source and transcoder errors);
  • playback fails (delivery errors, timeouts);
  • you need to understand why a channel switched to a backup source or restarted.

For systematic diagnostics, also use the dashboard and alerts.