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hczhu-db
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Apr 21, 2025
jnyi
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jnyi
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nice finding, would you also submit this change to upstream?
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Go's Pull iterator prohibits calling
next()andstop()simultaneously (code pointer). Use a mutex to protect Recv() and CloseSend() which essentially callsnext()andstop().The race is introduced in thanos-io#7821 and happens rarely during a query timeout