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Bug 730262

Summary: sys-apps/portage: Add timeout configuration for sync-type = git
Product: Portage Development Reporter: Zac Medico <zmedico>
Component: CoreAssignee: Portage team <dev-portage>
Status: CONFIRMED ---    
Severity: normal CC: esigra, whissi
Priority: Normal    
Version: unspecified   
Hardware: All   
OS: All   
See Also: https://bugs.gentoo.org/show_bug.cgi?id=180009
Whiteboard:
Package list:
Runtime testing required: ---
Bug Depends on:    
Bug Blocks: 240187    

Description Zac Medico gentoo-dev 2020-06-30 16:39:22 UTC
Apparently it's possible for git fetch to hang forever:

> root      5540  0.2  0.0  11656  5468 ?        Ss   12:07   0:00 tmux
> root      5541  0.0  0.0  10144  3904 pts/1    Ss   12:07   0:00  \_ -bash
> root      5544  0.1  0.3 187912 32184 pts/1    S+   12:07   0:00  |   \_ /usr/bin/python3.8 -b /usr/lib/python-exec/python3.8/emerge --sync
> root      5605  0.0  0.3 114476 26872 pts/1    S+   12:08   0:00  |       \_ /usr/bin/python3.8 -b /usr/lib/python-exec/python3.8/emerge --sync
> root      5617  0.0  0.0  12384  4376 pts/1    S+   12:08   0:00  |       |   \_ /usr/bin/git fetch origin
> root      5620  0.0  0.0  12232  5408 pts/1    S+   12:08   0:00  |       |       \_ /usr/bin/ssh git@github.com git-upload-pack 'Whissi/gentoo-overlay.git'
> root      5606  0.0  0.3 114708 27384 pts/1    S+   12:08   0:00  |       \_ /usr/bin/python3.8 -b /usr/lib/python-exec/python3.8/emerge --sync
Comment 1 Zac Medico gentoo-dev 2020-12-27 02:58:17 UTC
I've checked to see if git fetch has some kind of timeout optio, but didn't find one. As a quick and dirty workaround, I guess it would be possible to use sync-git-pull-env to override GIT_SSH_COMMAND, and wrap the ssh command with a timeout command. However, we should add an option for an overall sync timeout, and this option can be independent the sync protocol. We have a somewhat related PORTAGE_RSYNC_INITIAL_TIMEOUT variable that was added for bug 180009.