I'm looking for a mutex-type tool I can run in a distributed system on a LAN to arbitrate access to a shared resource that only supports a single user at a time.
What's the easiest way to do this?
At a high level what I want to do is have a shell script running in multiple CI jobs that does
* acquire lock, blocking if necessary
* run tests that require shared resource
* release lock
If the tests fail or hang and the CI VM is forcibly terminated by the scheduler, this needs to (by a socket timeout, TCP RST, or similar) release the mutex within a reasonable time frame.
Andrew Zonenberg
npub1cd…z9vpd
2026-10-28 06:16:07 UTC
Author Public Key
npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpdPublished at
2026-10-28 06:16:07 UTCEvent JSON
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