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Backend issue - compilations stopped

See original GitHub issue

After a long while of running, it seems like POST requests aren’t being satisfied. Happened Sep 18th 2017 11am ish.

Symptom is at least one node (longest running) seems to work OK but POSTing locally just hangs:

time curl 'http://localhost:10240/api/compiler/g72/compile' -H 'origin: https://gcc.godbolt.org' -H 'accept-encoding: gzip, deflate, br' -H 'x-requested-with: XMLHttpRequest' -H 'accept-language: en-US,en;q=0.8' -H 'user-agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.86 Safari/537.36' -H 'content-type: application/json' -H 'accept: application/json, text/javascript, */*; q=0.01' -H 'referer: https://gcc.godbolt.org/' -H 'authority: gcc.godbolt.org' -H 'cookie: __utma=64966969.976725685.1422038700.1473257226.1473690382.13; __utma=193728187.46355192.1421958863.1475157449.1475251429.418; _ga=GA1.2.976725685.1422038700; _gid=GA1.2.1670398990.1505739837; _gat=1' --data-binary '{"source":"using T = __int128;\n\nT f(T x) {\n    return x + 10;\n}","compiler":"clang_trunk","options":{"userArguments":"-Ofast -std=c++11 -Wall -march=native ","compilerOptions":{"produceAst":true,"produceOptInfo":false},"filters":{"0":{},"labels":true,"commentOnly":true,"directives":true,"intel":true,"jquery":"3.2.1","length":1,"prevObject":{"0":{"sizzle1505752105753":{"undefined":{"legend":[5,0,false]}}},"length":1,"prevObject":{"0":{"sizzle1505752105753":{"undefined":{"legend":[5,0,false]}},"jQuery321036841117693893711":{"display":""}},"length":1}},"trim":true}}}' --compressed

(just hangs)

strace shows it’s not even trying to exec anything. I suspect something’s going on in the queueing/restricted number of compiles code.

Issue Analytics

State:
Created 6 years ago
Comments:15 (15 by maintainers)

Top GitHub Comments

1reaction

mattgodboltcommented, Sep 20, 2017

With the clue from above was able to reproduce using the old promise-queue library, and then show the new promise-queue version fixes it! Hooray.

0reactions

mattgodboltcommented, Sep 21, 2017

Ahhh!!! Yes! I bet the exec output has been truncated in this case! The offsets are suspiciously like 1MB in, and the output errors on [ and T correspond to the [Truncated] thing that gets put at the end. Mystery solved!

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