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Error message

This error can appear when using any component.

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Explanation

The Maia runner tried to start a new thread and the operating system refused. This usually means too many tasks or threads are running at once on one instance.

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Potential causes

  • Too many pipelines or loop iterations are running in parallel on one Maia runner.
  • A container or host limit on threads or processes is lower than the workload needs.

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Resolve the error

  1. Reduce the number of pipelines and parallel loop iterations running at the same time on the Maia runner.
  2. Raise the process or thread limit (pids-limit or ulimit -u) on the container or host, if it’s set low.
  3. Add instances so concurrent work is spread out.
  4. Re-run the pipeline.
  5. If you still need help, contact Maia Support and include the items listed below.
    • The full error text.
    • The root pipeline execution ID.
    • The Maia runner ID and the time of failure (UTC).

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Prevent future errors

To prevent this error occurring again, set a concurrency cap for each Maia runner based on its size.

Related topics

Maia runner ran out of memory