GNU bug report logs - #67988
[Cuirass] ‘request-work’ responses received by several workers

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From: Ludovic Courtès <ludo <at> gnu.org>
To: 67988 <at> debbugs.gnu.org
Subject: bug#67988: [Cuirass] ‘request-work’ responses received by several workers
Date: Tue, 28 May 2024 23:50:39 +0200

Ludovic Courtès <ludovic.courtes <at> inria.fr> skribis:

> I’m under the impression that sometimes, when the server replies to
> ‘worker-request-work’ messages, its reply is received by more than just
> the target worker, leading to builds being performed twice:

Seen again:

--8<---------------cut here---------------start------------->8---
ludo <at> guix-hpc4 ~/src/cuirass$ sudo grep  nmhvrka9i4qng54w3d478j1lsp9dn7r7 /var/log/cuirass-remote-server.log
2024-05-28 21:31:43 194.199.1.26 (PajrOfGX): build started: '/gnu/store/nmhvrka9i4qng54w3d478j1lsp9dn7r7-firefox-126.0.1.drv'.
2024-05-28 21:34:22 194.199.1.27 (exataaY9): build started: '/gnu/store/nmhvrka9i4qng54w3d478j1lsp9dn7r7-firefox-126.0.1.drv'.
2024-05-28 21:38:32 194.199.1.17 (DIwFaVSn): build started: '/gnu/store/nmhvrka9i4qng54w3d478j1lsp9dn7r7-firefox-126.0.1.drv'.
2024-05-28 22:16:13 fetching 1 outputs of '/gnu/store/nmhvrka9i4qng54w3d478j1lsp9dn7r7-firefox-126.0.1.drv' from http://194.199.1.26:5558
2024-05-28 22:16:18 build succeeded: '/gnu/store/nmhvrka9i4qng54w3d478j1lsp9dn7r7-firefox-126.0.1.drv'
2024-05-28 22:53:49 fetching 1 outputs of '/gnu/store/nmhvrka9i4qng54w3d478j1lsp9dn7r7-firefox-126.0.1.drv' from http://194.199.1.27:5558
2024-05-28 22:53:49 build succeeded: '/gnu/store/nmhvrka9i4qng54w3d478j1lsp9dn7r7-firefox-126.0.1.drv'
2024-05-28 23:03:50 fetching 1 outputs of '/gnu/store/nmhvrka9i4qng54w3d478j1lsp9dn7r7-firefox-126.0.1.drv' from http://194.199.1.17:5558
2024-05-28 23:03:50 build succeeded: '/gnu/store/nmhvrka9i4qng54w3d478j1lsp9dn7r7-firefox-126.0.1.drv'
--8<---------------cut here---------------end--------------->8---

And on workers:

--8<---------------cut here---------------start------------->8---
$ ssh root <at> guix-hpc3 grep nmhvrka9i4qng54w3d478j1lsp9dn7r7 /var/log/cuirass-remote-worker.log
2024-05-28 21:57:43 DIwFaVSn: building derivation `/gnu/store/nmhvrka9i4qng54w3d478j1lsp9dn7r7-firefox-126.0.1.drv' (system: x86_64-linux)
2024-05-28 23:22:58 DIwFaVSn: derivation /gnu/store/nmhvrka9i4qng54w3d478j1lsp9dn7r7-firefox-126.0.1.drv build succeeded.
$ ssh root <at> guix-hpc5 grep nmhvrka9i4qng54w3d478j1lsp9dn7r7 /var/log/cuirass-remote-worker.log
2024-05-28 21:34:13 PajrOfGX: building derivation `/gnu/store/nmhvrka9i4qng54w3d478j1lsp9dn7r7-firefox-126.0.1.drv' (system: x86_64-linux)
2024-05-28 22:18:40 PajrOfGX: derivation /gnu/store/nmhvrka9i4qng54w3d478j1lsp9dn7r7-firefox-126.0.1.drv build succeeded.
$ ssh root <at> guix-hpc7 grep nmhvrka9i4qng54w3d478j1lsp9dn7r7 /var/log/cuirass-remote-worker.log
2024-05-28 21:34:11 exataaY9: building derivation `/gnu/store/nmhvrka9i4qng54w3d478j1lsp9dn7r7-firefox-126.0.1.drv' (system: x86_64-linux)
2024-05-28 22:53:35 exataaY9: derivation /gnu/store/nmhvrka9i4qng54w3d478j1lsp9dn7r7-firefox-126.0.1.drv build succeeded.
--8<---------------cut here---------------end--------------->8---

Ludo’.

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