2018-02-05-tidb-weekly.md

title	date	summary	tags
Weekly update (January 29 ~ February 04, 2018)	2018-02-05	Last week, we landed 35 PRs in the TiDB repositories, 6 PRs in the TiSpark repositories, and 22 PRs in the TiKV and PD repositories.	TiDB TiKV PD TiSpark

Weekly update in TiDB

Last week, we landed 35 PRs in the TiDB repositories.

Added

• Support the load stats command

Removed

• Remove iota in DDL package to make the constant clearer

Fixed

• limit and offset can be parameter markers in the prepared statement
• IndexOption can be a list in creating a table
• Fix the bug of some field length missing in creating a table
• Fix the bug of parsing Datetime overflow
• Trim leading zeros before parsing integer literal
• Fix the float truncate bug

Improved

• Importer tools support loadStats by path
• Support mock table info for importer tools
• Let DO statement be a read only statement
• Improve an error handling in ddl
• Reduce memory allocation in buildDataSource
• Make Explain clearer
• Add the metrics package and recover Panic of Worker
• Refine the joinResult generator to return maxChunkSize chunk
• Limit lock count for ScanLock request
• Enhance the IndexRange calculation
• Refine metrics in TiDB:
  • Refine DistSQL metrics
  • Add metrics for the meta package
  • Move and refine the server metrics
  • Add metrics for DDL syncer
  • Update metrics for session

Weekly update in TiSpark

Last week, we landed 6 PRs in the TiSpark repositories.

Improved

• Switch integration test to scalatest framework

Fixed

• Fix Average on BIGINT overflow
• Fix scala version for some libraries

Weekly update in TiKV and PD

Last week, we landed 22 PRs in the TiKV and PD repositories.

Added

• PD: implement GetAllStores API
• TiKV: implement GetAllStores API
• Add PD health API
• Support setting leader priority to etcd members
• Sync the PD leader with the etcd leader
• Add the future pool

Fixed

• Fix hot Region DistinctScoreFilter
• Fix and update Region size
• Fix cleanup for raw KV

Improved

• Check Range for DAG and analysis
• Sync the snapshots
• Remove the sync snapshot file
• Add operator duration metrics
• Support simple command line args
• Add Region statistics
• Clear stale data using DeleteFilesInRanges

New contributor (Thanks!)

• TiDB: Boik