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Details

Type: Bug
Resolution: Unresolved
Priority: P2: Important
Fix Version/s: None
Affects Version/s: master
Component/s: Agent, Other, Platform Configurations, Provisioning
Labels:
None

Platform/s:

macOS

Description

I've recently seen a few integrations failing in sccache, with no error from the compiler it's driving. Present data taken from a macOS run may or may not be representative of the ones I've seen before (I only looked in this much detail after I'd seen similar things enough times to decide it was worth reporting):

agent:2021/07/16 10:56:51 build.go:391: [406/2940] sccache /usr/bin/clang++ ... -o src/corelib/CMakeFiles/Core.dir/serialization/qxmlutils.cpp.o -c src/corelib/serialization/qxmlutils.cpp
agent:2021/07/16 10:56:51 build.go:391: FAILED: src/corelib/CMakeFiles/Core.dir/serialization/qxmlutils.cpp.o
agent:2021/07/16 10:56:51 build.go:391: sccache /usr/bin/clang++ ... -o src/corelib/CMakeFiles/Core.dir/serialization/qxmlutils.cpp.o -c src/corelib/serialization/qxmlutils.cpp
agent:2021/07/16 10:56:51 build.go:391: sccache: error: failed to execute compile
agent:2021/07/16 10:56:51 build.go:391: sccache: caused by: Failed to send data to or receive data from server
agent:2021/07/16 10:56:51 build.go:391: sccache: caused by: Failed to read response header
agent:2021/07/16 10:56:51 build.go:391: sccache: caused by: failed to fill whole buffer

and later

agent:2021/07/16 10:56:59 build.go:391: sccache: warning: The server looks like it shut down unexpectedly, compiling locally instead
agent:2021/07/16 10:56:59 build.go:391: ninja: build stopped: subcommand failed.
agent:2021/07/16 10:56:59 build.go:442: Process finished with error: exit status 1

with no evidence of a non-sccache'd

  /usr/bin/clang++ ... -c src/corelib/serialization/qxmlutils.cpp

run in between, as might have been anticipated given "compiling locally instead".
The second sccache /usr/bin/clang++ command-line is identical to the first (aside from the 406/2940 prefix); there is no hint of a "run locally" option being passed.

So it seems like sccache doesn't really attempt a local compile when it fails to talk to its server, with the result that any such failure leads to the build failing, instead of merely not gaining the benefit of sccache

Attachments

Issue Links

is duplicated by

QTBUG-97270 Sccache fatal error in building qtwebengine on macOS

Closed

resulted in

COIN-813 Add minio telegraf metrics to sccache server

Closed

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For Gerrit Dashboard: COIN-740
#	Subject	Branch	Project	Status	CR	V
426466,1	Add wrapper for sccache command in Linux and macOS	6.4	qt/qt5	Status: NEW	+2	0
427237,38	Add sccache wrapper for Windows	dev	qt/qt5	Status: NEW	0	0
425134,11	Add wrapper for sccache command in Linux and macOS	dev	qt/qt5	Status: MERGED	+2	0
426467,2	Add wrapper for sccache command in Linux and macOS	6.3	qt/qt5	Status: MERGED	+2	0
426469,2	Add wrapper for sccache command in Linux and macOS	tqtc/lts-6.2	qt/tqtc-qt5	Status: MERGED	+2	0