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TiDB 3.1 Beta.1 Release Notes

/docs/dev/releases/release-3.1.0-beta.1/

/docs/dev/releases/3.1.0-beta.1/

TiDB 3.1 Beta.1 Release Notes

Release date: January 10, 2020

TiDB version: 3.1.0-beta.1

TiDB Ansible version: 3.1.0-beta.1

TiKV

backup
- Change the name of the backup file from start_key to the hash value of start_key to reduce the file name's length for easy reading #6198
- Disable RocksDB's force_consistency_checks check to avoid false positives in the consistency check #6249
- Add the incremental backup feature #6286
sst_importer
- Fix the issue that the SST file does not have MVCC properties during restoring #6378
- Add the monitoring items such as tikv_import_download_duration, tikv_import_download_bytes, tikv_import_ingest_duration, tikv_import_ingest_bytes, and tikv_import_error_counter to observe the overheads of downloading and ingesting SST files #6404
raftstore
- Fix the issue of Follower Read that the follower reads stale data when the leader changes, thus breaking transaction isolation #6343

Tools

BR (Backup and Restore)
- Fix the inaccurate backup progress information #127
- Improve the performance of splitting Regions #122
- Add the backup and restore feature for partitioned tables #137
- Add the feature of automatically scheduling PD schedulers #123
- Fix the issue that data is overwritten after non PKIsHandle tables are restored #139

TiDB Ansible

Add the feature of automatically disabling Transparent Huge Pages (THP) in the operating system during the initialization phase #1086
Add the Grafana monitoring for BR components #1093
Optimize the deployment of TiDB Lightning by automatically creating related directories #1104