Unexplained EMFILE

Bug #1946675 reported by Colin Watson
This bug affects 2 people
Affects Status Importance Assigned to Milestone

Bug Description

txpkgupload on ppa.launchpad.net hit EMFILE at 16:02 UTC today. Nagios only noticed at 18:13, and the service self-recovered at 18:20. There doesn't seem to have been unreasonable upload activity at that point, so it seems likely that there's some path that's leaking file descriptors, or perhaps a lack of timeouts somewhere. Of course it's good that we self-recovered, but it would be better to understand why we got into trouble in the first place.

Colin Watson (cjwatson)
summary: - Poor recovery from EMFILE
+ Unexplained EMFILE
Revision history for this message
Colin Watson (cjwatson) wrote :

https://pastebin.canonical.com/p/YgZmWRNwzJ/ (internal link) suggests some badly broken timeout logic - there are connections there that have been open for weeks, as far as I can tell from logs.

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