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runaway query watch=plan may record empty plan, which cause failed connection #56897

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nolouch opened this issue Oct 28, 2024 · 0 comments · Fixed by #57582
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runaway query watch=plan may record empty plan, which cause failed connection #56897

nolouch opened this issue Oct 28, 2024 · 0 comments · Fixed by #57582
Labels
affects-8.1 This bug affects the 8.1.x(LTS) versions. affects-8.5 This bug affects the 8.5.x(LTS) versions. component/pd severity/critical type/bug The issue is confirmed as a bug.

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@nolouch
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nolouch commented Oct 28, 2024

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

ALTER RESOURCE GROUP rg_test RU_PER_SEC = 1000 QUERY_LIMIT=(EXEC_ELAPSED '10ms' ACTION KILL WATCH =PLAN)
use rg_test;

image

2. What did you expect to see? (Required)

can connect to db

3. What did you see instead (Required)

cannot connect to db.
image

4. What is your TiDB version? (Required)

master
@nolouch nolouch added the type/bug The issue is confirmed as a bug. label Oct 28, 2024
@ti-chi-bot ti-chi-bot added the affects-8.5 This bug affects the 8.5.x(LTS) versions. label Nov 1, 2024
@nolouch nolouch added affects-8.5 This bug affects the 8.5.x(LTS) versions. and removed may-affects-5.4 This bug maybe affects 5.4.x versions. may-affects-6.1 may-affects-6.5 may-affects-7.1 may-affects-7.5 may-affects-8.1 affects-8.5 This bug affects the 8.5.x(LTS) versions. labels Nov 20, 2024
@nolouch nolouch mentioned this issue Nov 21, 2024
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@nolouch nolouch added the affects-8.1 This bug affects the 8.1.x(LTS) versions. label Nov 21, 2024
@ti-chi-bot ti-chi-bot bot closed this as completed in 9ef5b59 Nov 21, 2024
@ti-chi-bot ti-chi-bot mentioned this issue Nov 21, 2024
Merged
5 tasks
ti-chi-bot bot pushed a commit that referenced this issue Nov 22, 2024
@ti-chi-bot
runaway: only check statements with a non-empty plan digest (#57582) (#…
3da59f7 
…57599)

close #56897
@ti-chi-bot ti-chi-bot mentioned this issue Dec 11, 2024
Merged
5 tasks
ti-chi-bot bot pushed a commit that referenced this issue Dec 16, 2024
@ti-chi-bot
runaway: only check statements with a non-empty plan digest (#57582) (#…
13a7da4 
…58156)

close #56897
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affects-8.1 This bug affects the 8.1.x(LTS) versions. affects-8.5 This bug affects the 8.5.x(LTS) versions. component/pd severity/critical type/bug The issue is confirmed as a bug.
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runaway: only check statements with a non-empty plan digest nolouch/tidb
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@jebter @nolouch @ti-chi-bot