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copr: fix copr cache panic when tidb_enable_collect_execution_info is off #48340

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merged 3 commits into from
Nov 9, 2023
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copr: fix copr cache panic when tidb_enable_collect_execution_info is off #48340

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a8a433d
fix copr cache panic
you06 Nov 7, 2023
f786a9b
add test
you06 Nov 9, 2023
858c32d
update comment
you06 Nov 9, 2023
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8 changes: 7 additions & 1 deletion pkg/store/copr/coprocessor.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1685,7 +1685,13 @@ func (worker *copIteratorWorker) handleCopCache(task *copTask, resp *copResponse
resp.pbResp.Range = nil
}
}
resp.detail.CoprCacheHit = true
// If the coprocessor cache key of the task is same whether `worker.enableCollectExecutionInfo` is true or false,
// the cache may be hit when `worker.enableCollectExecutionInfo` is false, but the `detail` is nil.
// Check `resp.detail` to avoid panic.
// Details: https://github.com/pingcap/tidb/issues/48212
if resp.detail != nil {
resp.detail.CoprCacheHit = true
}
return nil
}
copr_metrics.CoprCacheCounterMiss.Add(1)
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