[Nut-upsuser] NUT behaviour when master system fails

Arjen de Korte nut+users at de-korte.org
Fri Mar 21 08:29:00 UTC 2008


> A brief examination of the NUT source code indicates that a system
> "write" statement is being used to communicate across the network with
> the upsd process of the master. We think that this system function
> blocks by default. Maybe the default blocking settings are in use. We
> don't know, this is probably very wide of the mark, but it is the best
> we have come up with!

If this is indeed the cause of the problem, you may wish to upgrade to the
latest version from the SVN trunk. Just two days ago, a change to the
upsclient library was made so that it no longer blocks on read/write

Best regards, Arjen
Eindhoven - The Netherlands
Key fingerprint - 66 4E 03 2C 9D B5 CB 9B  7A FE 7E C1 EE 88 BC 57

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