fixed win32 p_unlink retry sleep issue #4312
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added 3 commits
July 18, 2017 14:47
Fixed an issue where the retry logic on p_unlink sleeps before it tries setting a file to write mode causing unnecessary slowdown.
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Did not notice this PR. |
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Heh, you've been late by only 5 minutes. Thanks anyway for your PR! |
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@pks-t Yeah! I was little bummed but that's okay as long as it gets fixed! Thank you for helping to maintain the library! It's great. |
ethomson
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Jul 26, 2017
When using the `do_with_retries` macro for retrying filesystem operations in the posix emulation layer, allow the remediation function to return `GIT_RETRY`, meaning that the error was believed to be remediated, and the operation should be retried immediately, without a sleep. This is a slightly more general solution to the problem fixed in #4312.
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Yeah, sorry again for the poor communication on my part @cjhoward92. I'm manually merging your pull request into my branch, because I want to make sure that your change gets in to the code base. 😀 I've rebased my change on top, since I think that it's a little bit more general-purpose, and I'll merge them both in #4311. Thanks again for the investigation and the fix! 🎉 |
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Wow thanks @ethomson! Appreciate it! |
swisspol
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to git-up/libgit2
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Feb 4, 2018
When using the `do_with_retries` macro for retrying filesystem operations in the posix emulation layer, allow the remediation function to return `GIT_RETRY`, meaning that the error was believed to be remediated, and the operation should be retried immediately, without a sleep. This is a slightly more general solution to the problem fixed in libgit2#4312.
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Fixed an issue where the retry logic on
p_unlinkinposix_w32.csleeps before it tries setting a file to write mode causing unnecessary slowdown.This affects windows only.
The issue was introduced in this commit as the
do_with_retriesmacro tries theunlink_onceroutine and sleeps on failure before callingensure_writable.This is particularly noticeable when staging large groups of files at once as staging creates a temporary git object that is set to read only. When this temporary git object is deleted via
p_unlinkit always ends up hitting the sleep causing a 5ms delay per file.I spoke with @ethomson on slack about this briefly.