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Log Backup being paused due to a false positive in the automatic lag check. #53561

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3pointer opened this issue May 27, 2024 · 2 comments · Fixed by #53695
Closed

Log Backup being paused due to a false positive in the automatic lag check. #53561

3pointer opened this issue May 27, 2024 · 2 comments · Fixed by #53695
Labels
affects-6.5 This bug affects the 6.5.x(LTS) versions. affects-7.1 This bug affects the 7.1.x(LTS) versions. affects-7.5 This bug affects the 7.5.x(LTS) versions. affects-8.1 This bug affects the 8.1.x(LTS) versions. component/br This issue is related to BR of TiDB. report/customer Customers have encountered this bug. severity/major type/bug The issue is confirmed as a bug.

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@3pointer
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3pointer commented May 27, 2024 •
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Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

  1. start a log backup
  2. wait for 48h(the default lag check threshold)
  3. restart tidb advancer(or other scenarios that make advancer owner changed)

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

a normal log backup status.

3. What did you see instead (Required)

log backup paused by chance.

(The chance is the lastCheckpoint cannot be updated in time before checking. e.g. regions has a hole will make lastCheckpoint skip update this time and wait for next tick. )

4. What is your TiDB version? (Required)

v6.5.9/v7.1.5/v8.1.0/master
@3pointer 3pointer added type/bug The issue is confirmed as a bug. component/br This issue is related to BR of TiDB. affects-6.5 This bug affects the 6.5.x(LTS) versions. affects-8.1 This bug affects the 8.1.x(LTS) versions. affects-7.1 This bug affects the 7.1.x(LTS) versions. labels May 27, 2024
@RidRisR RidRisR mentioned this issue May 31, 2024
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13 tasks
@ti-chi-bot ti-chi-bot bot added may-affects-5.4 This bug maybe affects 5.4.x versions. may-affects-6.1 may-affects-7.5 labels Jun 5, 2024
@BornChanger BornChanger removed may-affects-5.4 This bug maybe affects 5.4.x versions. may-affects-6.1 may-affects-7.5 labels Jun 5, 2024
@Leavrth Leavrth added the affects-7.5 This bug affects the 7.5.x(LTS) versions. label Jun 11, 2024
ti-chi-bot bot pushed a commit that referenced this issue Jun 11, 2024
@RidRisR
br: fix Log Backup unexpected paused when adding a already long-runni…
64f5427 
…ng task (#53695)

close #53561
This was referenced Jun 11, 2024
Merged
Merged
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Merged
ti-chi-bot bot pushed a commit that referenced this issue Jun 12, 2024
@ti-chi-bot
br: fix Log Backup unexpected paused when adding a already long-runni…
366ed7d 
…ng task (#53695) (#53947)

close #53561
@seiya-annie
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/found customer

@ti-chi-bot ti-chi-bot bot added the report/customer Customers have encountered this bug. label Jul 5, 2024
ti-chi-bot bot pushed a commit that referenced this issue Jul 5, 2024
@ti-chi-bot
br: fix Log Backup unexpected paused when adding a already long-runni…
0f0ce24 
…ng task (#53695) (#53946)

close #53561
ti-chi-bot bot pushed a commit that referenced this issue Jul 18, 2024
@ti-chi-bot
br: fix Log Backup unexpected paused when adding a already long-runni…
1e48813 
…ng task (#53695) (#53948)

close #53561
ti-chi-bot bot pushed a commit that referenced this issue Jul 18, 2024
@ti-chi-bot
br: fix Log Backup unexpected paused when adding a already long-runni…
431781f 
…ng task (#53695) (#53945)

close #53561
@3pointer
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this issue was introduced in #50803

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affects-6.5 This bug affects the 6.5.x(LTS) versions. affects-7.1 This bug affects the 7.1.x(LTS) versions. affects-7.5 This bug affects the 7.5.x(LTS) versions. affects-8.1 This bug affects the 8.1.x(LTS) versions. component/br This issue is related to BR of TiDB. report/customer Customers have encountered this bug. severity/major type/bug The issue is confirmed as a bug.
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br: fix Log Backup unexpected paused when adding a already long-running task RidRisR/tidb
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@3pointer @Leavrth @seiya-annie @BornChanger