Weekly Update 2018-02-26

[zhangyanqing]

Weekly update in TiDB

Last two weeks, we landed 27 PRs in the TiDB repositories.

Added

• Support the select 1 order by 1 syntax

Fixed

• Fix the bug in insert statements when dropping columns
• Fix the bug when updating the stats table

Improved

• Allow golint to check context.Context in make check
• Do not import golang.org/x/net/context as goctx alias
• Move the package context to sessionctx
• Add the recover mechanism for join workers
• Add StatementsPerTransaction and TransactionDuration metrics
• Add keep alive metrics to figure out whether TiDB instance is down

Weekly update in TiKV and PD

Last two weeks, we landed 13 PRs in the TiKV and PD repositories.

Added

• Add peer label level statistics
• Support stream aggregation
• Support multiple Regions in tombstone
• Add a handler which is invoked after the client reconnects to PD

Fixed

• Fix the misspelled word to improve GoReport Card Result
• Fix the panic caused by region not found
• Fix the bug of the hot region scheduler adding peers to down stores

Improved

• Add the timestamp field for the Region heartbeat
• Increase the priority of replica checker's operator
• Increase the default value of the replica scheduler limit

Great News

 

TiDB 1.1 Beta Release Notes

On February 24, 2018, TiDB 1.1 Beta is released. This release has great improvement in MySQL compatibility, SQL optimization, stability, and performance.

 Click here to read full release notes.

Good Readings

Bringing TiKV to Rust Devroom at FOSDEM 2018

At the crack of dawn on February 1, I landed in Brussels, Belgium, for the first time in my life. The goal of my trip wasn’t to taste the local cuisine, tour world-famous museums, or grab a pint of the local brew (though I ended up doing all those things anyway). It was to deliver a talk three days later at “FOSDEM 2018 Rust Devroom” about our experience at PingCAP using Rust to build TiKV, a distributed transactional Key-Value storage engine.

Click here to read full article.