diagnostics: lock while populating hardware information#61100
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craig[bot] merged 1 commit intocockroachdb:masterfrom Feb 25, 2021
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diagnostics: lock while populating hardware information#61100craig[bot] merged 1 commit intocockroachdb:masterfrom
craig[bot] merged 1 commit intocockroachdb:masterfrom
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Not sure who the right reviewers are; if either of you two know better reviewers, please add. |
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Note that the only real change here is adding the lock. I also moved the code from one file to another to make it more clear that it's shared between both |
RaduBerinde
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complete! 1 of 0 LGTMs obtained (waiting on @knz)
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The shirou/gopsutil/host library that we use to gather hardware information during diagnostics reporting is not multi-thread safe. As one example, it lazily initializes a global map the first time the Virtualization function is called, but takes no lock while doing so. Work around this limitation by taking our own lock. This code never triggered race conditions before, but is doing so after recent changes I made to the diagnostics reporting code. Previously, we were using a single background goroutine to do both diagnostics reporting and checking for updates. Now we are doing each of those on different goroutines, which triggers race detection. Fixes cockroachdb#61091 Release justification: fixes for high-priority or high-severity bugs in existing functionality Release note: None
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knz
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Reviewed 3 of 3 files at r1.
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bors r+ |
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Build failed: |
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bors r+ |
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Build failed (retrying...): |
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Build succeeded: |
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The shirou/gopsutil/host library that we use to gather hardware information
during diagnostics reporting is not multi-thread safe. As one example, it
lazily initializes a global map the first time the Virtualization function
is called, but takes no lock while doing so. Work around this limitation by
taking our own lock.
This code never triggered race conditions before, but is doing so after recent
changes I made to the diagnostics reporting code. Previously, we were using a
single background goroutine to do both diagnostics reporting and checking for
updates. Now we are doing each of those on different goroutines, which triggers
race detection.
Fixes #61091
Release justification: fixes for high-priority or high-severity bugs in existing
functionality
Release note: None