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It takes too long time for add index in million tables #57783

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lilinghai opened this issue Nov 28, 2024 · 0 comments · Fixed by #57785
Closed

It takes too long time for add index in million tables #57783

lilinghai opened this issue Nov 28, 2024 · 0 comments · Fixed by #57785
Labels
affects-8.5 This bug affects the 8.5.x(LTS) versions. component/ddl This issue is related to DDL of TiDB. severity/major type/bug The issue is confirmed as a bug.

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@lilinghai
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Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

3M tables
Add index for a table with 10k rows takes about 20 minutes

   JOB_ID: 7504857
     DB_NAME: sbtest29
  TABLE_NAME: sbtest2
    JOB_TYPE: add index
SCHEMA_STATE: public
   SCHEMA_ID: 3324475
    TABLE_ID: 1000158
   ROW_COUNT: 20000
 CREATE_TIME: 2024-11-28 02:28:25.788000
  START_TIME: 2024-11-28 03:13:49.938000
    END_TIME: 2024-11-28 03:33:51.738000
       STATE: synced
    COMMENTS: ingest, DXF

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

3. What did you see instead (Required)

4. What is your TiDB version? (Required)

Release Version: v8.5.0
Edition: Community
Git Commit Hash: 3da59f7
Git Branch: HEAD
UTC Build Time: 2024-11-22 14:46:47
GoVersion: go1.23.3
Race Enabled: false
Check Table Before Drop: false
Store: tikv
@lilinghai lilinghai added the type/bug The issue is confirmed as a bug. label Nov 28, 2024
@tangenta tangenta mentioned this issue Nov 28, 2024
Merged
13 tasks
@tangenta tangenta added severity/major affects-8.5 This bug affects the 8.5.x(LTS) versions. labels Nov 28, 2024
@jebter jebter added the component/ddl This issue is related to DDL of TiDB. label Nov 29, 2024
@ti-chi-bot ti-chi-bot bot closed this as completed in 6d74071 Dec 2, 2024
@ti-chi-bot ti-chi-bot mentioned this issue Dec 2, 2024
Merged
13 tasks
ti-chi-bot bot pushed a commit that referenced this issue Dec 2, 2024
@ti-chi-bot
planner: use TableInfo.DBID to locate schema (#57785) (#57870)
a248b96 
close #57779, close #57783
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affects-8.5 This bug affects the 8.5.x(LTS) versions. component/ddl This issue is related to DDL of TiDB. severity/major type/bug The issue is confirmed as a bug.
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planner: use TableInfo.DBID to locate schema tangenta/tidb
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@jebter @lilinghai @tangenta