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InfoSchema V2 #50959

Closed
10 of 14 tasks
tiancaiamao opened this issue Feb 4, 2024 · 1 comment
Closed
10 of 14 tasks

InfoSchema V2 #50959

tiancaiamao opened this issue Feb 4, 2024 · 1 comment
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type/enhancement The issue or PR belongs to an enhancement.

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@tiancaiamao
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tiancaiamao commented Feb 4, 2024 •
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Enhancement

When we have millions of tables, the memory footprint for meta data is not negligible.
Some users use TiDB to provide services to their tenant, so there could be a huge amount of tables.
We need to develop a kind of caching mechanism to ensure that even in the extreme cases, the meta data do not cause TiDB OOM.

In the new design, the table.Table will not be persisted in memory, insted, they will be cached.

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@tiancaiamao tiancaiamao added the type/enhancement The issue or PR belongs to an enhancement. label Feb 4, 2024
@tiancaiamao tiancaiamao mentioned this issue Feb 4, 2024
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ti-chi-bot bot pushed a commit that referenced this issue Feb 4, 2024
@tiancaiamao
infoschema: remove some redundant methods from InfoSchema (#50916)
c6d7270 
ref #50959
This was referenced Feb 5, 2024
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ti-chi-bot bot pushed a commit that referenced this issue Feb 7, 2024
@tiancaiamao
*: store db ID in model.TableInfo and move SchemaByTable method out f…
f5e0799 
…rom InfoSchema (#50917)

ref #50959
ti-chi-bot bot pushed a commit that referenced this issue Feb 7, 2024
@tiancaiamao
infoschema: split InfoSchemaMisc from InfoSchema interface (#51015)
f46bded 
ref #50959
@tiancaiamao tiancaiamao mentioned this issue Feb 7, 2024
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@tiancaiamao tiancaiamao mentioned this issue Feb 22, 2024
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ti-chi-bot bot pushed a commit that referenced this issue Feb 23, 2024
@tiancaiamao
infoschema,domain: introduce InfoSchemaV2, core data struct etc (#51058)
e06dc99 
ref #50959
@ywqzzy ywqzzy mentioned this issue Feb 28, 2024
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@GMHDBJD GMHDBJD mentioned this issue Feb 28, 2024
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ti-chi-bot bot pushed a commit that referenced this issue Feb 28, 2024
@ywqzzy
infoschema: run some infoschema ut without domain (#51375)
aae2a36 
ref #50959
@ywqzzy ywqzzy mentioned this issue Feb 28, 2024
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ti-chi-bot bot pushed a commit that referenced this issue Feb 29, 2024
@ywqzzy
infoschema/test: test apply diff (#51398)
353b75d 
ref #50959
@ywqzzy ywqzzy mentioned this issue Feb 29, 2024
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@tiancaiamao tiancaiamao mentioned this issue Feb 29, 2024
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@wjhuang2016 wjhuang2016 mentioned this issue Feb 29, 2024
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@ywqzzy ywqzzy mentioned this issue Mar 1, 2024
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ti-chi-bot bot pushed a commit that referenced this issue Mar 1, 2024
@ywqzzy
infoschema: refine common part for builder (#51411)
da7cd99 
ref #50959
ti-chi-bot bot pushed a commit that referenced this issue Mar 1, 2024
@tiancaiamao
infoschema: fix some InfoSchema V2 API for special schemas like INFOR…
bd17c5b 
…MATION_SCHEMA (#51434)

ref #50959
This was referenced Mar 4, 2024
Merged
Merged
ti-chi-bot bot pushed a commit that referenced this issue Mar 4, 2024
@ywqzzy
infoschema: more tests for applyDiff (#51463)
d440d70 
ref #50959
@ywqzzy ywqzzy mentioned this issue Mar 5, 2024
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13 tasks
@tiancaiamao tiancaiamao mentioned this issue Mar 5, 2024
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@ywqzzy ywqzzy mentioned this issue Mar 5, 2024
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13 tasks
ti-chi-bot bot pushed a commit that referenced this issue Mar 6, 2024
@ywqzzy
infoschemaV2: tiny refine builder (#51522)
b2c3e67 
ref #50959
ti-chi-bot bot pushed a commit that referenced this issue Mar 6, 2024
@ywqzzy
infoschemaV2: support create&drop&update table/schema for v2 (#51424)
2830714 
ref #50959
ti-chi-bot bot pushed a commit that referenced this issue Mar 6, 2024
@ywqzzy
infoschemaV2: add ut for v2 and some refine (#51507)
46eafe4 
ref #50959
@tiancaiamao tiancaiamao mentioned this issue Aug 6, 2024
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ti-chi-bot bot pushed a commit that referenced this issue Aug 6, 2024
@tiancaiamao
infoschema,executor: change TableByID to skip refill infoschema v2 ca…
3b19de6 
…che (#55101)

ref #50959
ti-chi-bot bot pushed a commit that referenced this issue Aug 6, 2024
@tiancaiamao
infoschema: support cached table for infoschema v2 (#55139)
977a5bf 
ref #50959
@tiancaiamao tiancaiamao mentioned this issue Aug 6, 2024
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@lance6716 lance6716 mentioned this issue Aug 9, 2024
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ti-chi-bot bot pushed a commit that referenced this issue Aug 9, 2024
@lance6716
*: add ctx parameter to infoschema TableByID (#55329)
876268f 
ref #50959
@tiancaiamao tiancaiamao mentioned this issue Aug 12, 2024
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ti-chi-bot bot pushed a commit that referenced this issue Aug 12, 2024
@tiancaiamao
infoschema: update two tests to make them robust and a tiny fix (#55362)
4baaa18 
ref #50959, close #55132
ti-chi-bot bot pushed a commit that referenced this issue Aug 13, 2024
@tiancaiamao
*: update v2 infoschema reader support for tables Indexes, Views, Key…
bc6a18d 
…ColumnUsage, TableConstraints (#55241)

ref #50959
ti-chi-bot bot pushed a commit that referenced this issue Aug 14, 2024
@tiancaiamao
*: enable infoschema v2 by default (#55229)
70381ea 
ref #50959
@tiancaiamao tiancaiamao mentioned this issue Aug 19, 2024
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@joechenrh joechenrh mentioned this issue Aug 20, 2024
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ti-chi-bot bot pushed a commit that referenced this issue Aug 20, 2024
@joechenrh
domain: change groupSize in splitForConcurrentFetch (#55518)
85235b3 
ref #50959
ti-chi-bot bot pushed a commit that referenced this issue Aug 20, 2024
@tiancaiamao
infoschema: add WithRefillOption for TableByName and TableByID (#55511)
49828bd 
ref #50959
@tiancaiamao tiancaiamao mentioned this issue Aug 21, 2024
Merged
13 tasks
This was referenced Aug 22, 2024
Merged
Merged
ti-chi-bot bot pushed a commit that referenced this issue Aug 28, 2024
@fzzf678
infoschema_v2: add ut test Data struct fields' correctness (#55709)
74404a4 
ref #50959
@fzzf678 fzzf678 mentioned this issue Sep 2, 2024
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@tiancaiamao tiancaiamao mentioned this issue Sep 25, 2024
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ti-chi-bot bot pushed a commit that referenced this issue Sep 26, 2024
@tiancaiamao
sessionctx,infoschema: change @@tidb_schema_cache_size lower bound to…
d788e3c 
… 64MB (#56316)

ref #50959
@lance6716 lance6716 mentioned this issue Oct 23, 2024
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ti-chi-bot bot pushed a commit that referenced this issue Oct 23, 2024
@lance6716
infoschema: improve usability of SchemaByTable (#56803)
5cbe855 
ref #50959
@tiancaiamao tiancaiamao mentioned this issue Dec 9, 2024
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@tiancaiamao
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Done in v8.5

@tiancaiamao tiancaiamao mentioned this issue Dec 10, 2024
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ti-chi-bot bot pushed a commit that referenced this issue Dec 12, 2024
@tiancaiamao
metrics/grafana: display instance for information v2 cache size grafa…
e54cc5b 
…na panel (#58138)

ref #50959, close #58142
@D3Hunter D3Hunter mentioned this issue Dec 17, 2024
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ti-chi-bot bot pushed a commit that referenced this issue Dec 17, 2024
@D3Hunter
infoschema: simplify size calculation for array (#58320)
40eb7dd 
ref #50959
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