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[Backport 5.0] searcher: always call Wait on comby processes#50313
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If you call Start you _must_ always call Wait to free up resources. In particular this is the likely cause of a huge goroutine leak in the searcher process which all blames to the os/exec package waiting on a context. This was an accidental regression introduced when this code was ported to using conc. Previously it would always call Wait, but now if something in the introduced pool fails, we don't call Wait. Test Plan: CI (cherry picked from commit 257ba04)
keegancsmith
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Apr 3, 2023
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If you call Start you must always call Wait to free up resources. In particular this is the likely cause of a huge goroutine leak in the searcher process which all blames to the os/exec package waiting on a context.
This was an accidental regression introduced when this code was ported to using conc. Previously it would always call Wait, but now if something in the introduced pool fails, we don't call Wait.
Test Plan: CI
Likely fix for https://github.com/sourcegraph/sourcegraph/issues/49987
Backport 257ba04 from #50034