TiDB 3.1.0-beta.1 release, NewSQL distributed database

TiDB 3.1.0-beta.1 has been released, this version updates are as follows:

TiKV

• backup
  • The backup file name from the  start_key changed  start_key hash value, reducing the length of the file name for easy reading  # 6198
  • Close RocksDB  force_consistency_checks check function to avoid the problem of false positives consistency check  # 6249
  • New incremental backup functionality  # 6286
• sst_importer
  • After the repair is not MVCC Properties file recovery SST question  # 6378
  • New  tikv_import_download_duration, tikv_import_download_bytes, tikv_import_ingest_duration, tikv_import_ingest_bytes, tikv_import_error_counter and other monitoring items for viewing Download SST and Ingest SST overhead  # 6404
• raftstore
  • Fix the problem because Follower Read read the old data in the leader changes cause problems transaction isolation is broken  # 6343

Tools

• BR (Backup and Restore)
  • Repair backup progress information is not accurate question  # 127
  • To enhance the performance of split Region  # 122
  • New partition table backup and recovery functions  # 137
  • New features automatic scheduling PD schedulers  # 123
  • Data coverage issue after the repair of non-recovery PKIsHandle table  # 139

TiDB Ansible

• The new initialisation phase automatically shut down the operating system functions THP  # 1086
• New BR components Grafana monitoring  # 1093
• TiDB Lightning optimization deployment, automatically create the relevant catalog  # 1104

Details: https://pingcap.com/docs-cn/v3.1/releases/3.1.0-beta.1/