2.1.4 PingCAP Go runtime related problems in TiDB production environmentthe TiDB user, caused by THP ● TiDB has now disabled the use of THP Part III - GC Related A brief introduction about GC ● What is STW(stop the world) exactly? ● What happen when collector can not interrupt the user program? ○ STW takes too long ○ 25% CPU is dedicated to GC ○ MARK ASSIST ○ ... A brief introduction about GC Case study: GC Sweep caused latency jitter ● The query duration is unstable0 码力 | 56 页 | 50.15 MB | 6 月前3- TiDB 原理与实战GitHub：https://github.com/zimulala Agenda ● A brief introduction of NewSQL ● TiDB ● Plan optimization ● Dist SQL ● Online DDL ● TiKV ● Feelings ● Q & A A brief introduction of NewSQL 1970s 2010 2015 Present0 码力 | 23 页 | 496.41 KB | 6 月前3
- TiDB v6.5 Documentationoperations in a database. 4.5.1.1 Objects in TiDB To distinguish some general terms, here is a brief agreement on the terms used in TiDB: • To avoid confusion with the generic term database, database ----+------------------------------------------------------------+ �→ 3 rows in set (0.00 sec) Brief description of run results: From the above execution plan, the Cast operator is visible. Loss of -----------------------------------------------------------------+ �→ 3 rows in set (0.00 sec) Brief description of run results: From the above execution plan, the Cast operator is visible. SELECT *0 码力 | 5282 页 | 99.69 MB | 1 年前3
- TiDB v7.1 Documentationoperations in a database. 4.5.1.1 Objects in TiDB To distinguish some general terms, here is a brief agreement on the terms used in TiDB: • To avoid confusion with the generic term database, database ----+------------------------------------------------------------+ �→ 3 rows in set (0.00 sec) Brief description of run results: From the above execution plan, the Cast operator is visible. Loss of -----------------------------------------------------------------+ �→ 3 rows in set (0.00 sec) Brief description of run results: From the above execution plan, the Cast operator is visible. SELECT *0 码力 | 5716 页 | 104.74 MB | 1 年前3
- TiDB v7.6 Documentationoperations in a database. 4.5.1.1 Objects in TiDB To distinguish some general terms, here is a brief agreement on the terms used in TiDB: • To avoid confusion with the generic term database, database ----+------------------------------------------------------------+ �→ 3 rows in set (0.00 sec) Brief description of run results: From the above execution plan, the Cast operator is visible. Loss of -----------------------------------------------------------------+ �→ 3 rows in set (0.00 sec) Brief description of run results: From the above execution plan, the Cast operator is visible. SELECT *0 码力 | 6123 页 | 107.24 MB | 1 年前3
- TiDB v7.5 Documentationoperations in a database. 4.5.1.1 Objects in TiDB To distinguish some general terms, here is a brief agreement on the terms used in TiDB: • To avoid confusion with the generic term database, database ----+------------------------------------------------------------+ �→ 3 rows in set (0.00 sec) Brief description of run results: From the above execution plan, the Cast operator is visible. Loss of -----------------------------------------------------------------+ �→ 3 rows in set (0.00 sec) Brief description of run results: From the above execution plan, the Cast operator is visible. SELECT *0 码力 | 6020 页 | 106.82 MB | 1 年前3
- TiDB v8.5 Documentationoperations in a database. 4.5.1.1 Objects in TiDB To distinguish some general terms, here is a brief agreement on the terms used in TiDB: • To avoid confusion with the generic term database, database ----+------------------------------------------------------------+ �→ 3 rows in set (0.00 sec) Brief description of run results: From the above execution plan, the Cast operator is visible. Loss of -----------------------------------------------------------------+ �→ 3 rows in set (0.00 sec) Brief description of run results: From the above execution plan, the Cast operator is visible. SELECT *0 码力 | 6730 页 | 111.36 MB | 10 月前3
- TiDB v8.4 Documentationoperations in a database. 4.5.1.1 Objects in TiDB To distinguish some general terms, here is a brief agreement on the terms used in TiDB: • To avoid confusion with the generic term database, database ----+------------------------------------------------------------+ �→ 3 rows in set (0.00 sec) Brief description of run results: From the above execution plan, the Cast operator is visible. Loss of -----------------------------------------------------------------+ �→ 3 rows in set (0.00 sec) Brief description of run results: From the above execution plan, the Cast operator is visible. SELECT *0 码力 | 6705 页 | 110.86 MB | 10 月前3
- TiDB v6.1 Documentationoperations in a database. 4.5.1.1 Objects in TiDB To distinguish some general terms, here is a brief agreement on the terms used in TiDB: • To avoid confusion with the generic term database, database ----+------------------------------------------------------------+ �→ 3 rows in set (0.00 sec) Brief description of run results: From the above execution plan, the Cast operator is visible. Loss of -----------------------------------------------------------------+ �→ 3 rows in set (0.00 sec) Brief description of run results: From the above execution plan, the Cast operator is visible. SELECT *0 码力 | 4487 页 | 84.44 MB | 1 年前3
- TiDB v8.1 Documentationoperations in a database. 4.5.1.1 Objects in TiDB To distinguish some general terms, here is a brief agreement on the terms used in TiDB: • To avoid confusion with the generic term database, database ----+------------------------------------------------------------+ �→ 3 rows in set (0.00 sec) Brief description of run results: From the above execution plan, the Cast operator is visible. Loss of -----------------------------------------------------------------+ �→ 3 rows in set (0.00 sec) Brief description of run results: From the above execution plan, the Cast operator is visible. SELECT *0 码力 | 6321 页 | 107.46 MB | 1 年前3
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