vitess v5.20 Release Notes
Release Date: 2020-02-04 // about 4 years ago-
Incompatible Changes
🚀 This release includes the following changes, which may result in incompatibilities when upgrading from a previous release:
🗄 Deprecated Support for Vagrant
👌 Support for deployment on Vagrant is deprecated, and will be removed in the next release of Vitess. The recommended upgrade path is local deployment on macOS.🗄 Deprecation of vtgate option disable_local_gateway
The option disable_local_gateway is parsed but ignored by vtgate. It is now deprecated, and will be removed in a future version #5741🌐 Web_dir2 and web_dir options for vtctld
🌐 The options web_dir2 and web_dir are now parsed but ignored. This is a behavior change from 5.0 beta, where the options were removed. We intend to remove these options again in Vitess 6.0, but discovered compatibility issues with existing tooling. #5744 #5747🐛 Bugs Fixed
- Consul: The bundled consul version has been bumped to 1.5.1, addressing CVE-2019-12291 and CVE-2018-19653.
- 🛠 VReplication: Fixed a panic when connecting to an external MySQL server #5753
- 📜 Vttablet: Address #5734 by forming MySQL error packet on query parse error during
- 🛠 Vtgate: Fixed an issue with prepared statements returning a syntax error #5735
- Mysqlctl: Fixed a regression where the option mysqlctl_mycnf_template was accidentally removed during refactoring. #5717
- 🔨 Mysqlctl: Fix a regression where refactoring configuration files removed the options relay-log and relay-log-index from included configuration #5745
- Vttablet: Fixed a problem with vttablet consuming too much memory during a restore from backup when running with option -s3_backup_log_level LogDebugWithRequestRetries #5777
Functionality Added or Changed
- 🚚 Vtctld: The reference to web/vtctld has been removed from the Makefile #5778
- mysqlctld: An option has been added to mysqlctl to allow passdown of LD_PRELOAD libraries. This is useful in the case where a custom memory allocation library needs to be specified. #5730
- 🔌 Logging: Add datadog plugin for tracing #5681
- ➕ Add support for DISTINCTROW as an alias for DISTINCT SQL syntax #5726 #5718
- 0️⃣ Vstream: support default values #5736
- 👍 VReplication: Add support for ExternalizeVindex #5716
- 👍 ApplySchema: Add support for ALTER DATABASE #5733
🏗 Build Environment Changes