TiDB Monthly Update for May 2020

Releases

We have three releases this month:

  • TiDB 4.0 RC.2 Release Notes
    • New features
      • Add support for the BACKUP and RESTORE commands to back up and restore data #16960
      • Support pre-checking the data volume in a single Region before committing and pre-splitting the Region when the data volume exceeds the threshold #16959
      • Support recording the Cop_time information in slow logs and the SLOW_LOG table #16904
    • Bug fixes
  • TiDB 3.0.14 Release Notes
    • New features
      • Add the schema name column and the table name column to the query results of the ADMIN SHOW DDL JOBS statement 16428
      • Enhance the RECOVER TABLE syntax to support recovering truncated tables #15458
    • Bug fixes
  • TiDB Operator 1.1.0 GA Release Notes

Blog posts

Nick Cameron has written Large Transactions in TiDB that describes how we implemented support for large transactions.

Fei Yang's article TiCDC: Replication Latency in Milliseconds for 100+ TB Clusters dives deep into why we built TiCDC and how we implement its key features.

In TiDB Dashboard: Easier Troubleshooting for Distributed Databases, Wenxuan Shi, Ming Zhang, and Shuang Chen walks you through the dashboards's main widgets: Key Visualizer, SQL statement analysis, slow query viewing, cluster diagnostics, log search, and instance profiling.

Notable pull requests

Planner

DDL

Dashboard

Execution

Tools

Transaction

Engine

Scheduling

Kubernetes

Notable issues

Planner

Tools

Engine

Scheduling

Kubernetes

Call for participation

Wanna participate with us? Take a look at the following help-wanted issues, which are mentoring available:

New contributors

We’d like to welcome the following new contributors to TiDB and thank them for their work!

tidb:

tikv:

pd:

docs:

docs-cn:

tidb-operator:

parser:

This Monthly in TiKV

For more detailed and comprehensive information about TiKV, we have TiKV Monthly Update. The following covers May.

This Month in TiKV - May 2020