About TDengine
TDengine is a time-series database purpose-built for Industry 4.0 and Industrial IoT. It enables real-time ingestion, storage, analysis, and distribution of petabytes of data per day, generated by billions of sensors and data collectors. With TDengine making big data accessible, valuable, and affordable, digital transformation has never been easier.
What’s New
- Improved query performance: Performance has been improved for queries that include a
PARTITION BYclause whose target is a column. - Lossy compression option for floating-point values: You can specify lossy compression for floating-point data, which improves write performance as well as compression ratios. FSE and Huffman encoding are both available for this compression method.
- (TDengine Enterprise only) User-based IP whitelisting: You can restrict specific users from logging in to TDengine outside of specified IP addresses or address ranges. For more information, see the TDengine Enterprise documentation.
- (TDengine Enterprise only) Support for S3 storage: You can use S3 storage as a low-cost solution for historical data in a tiered storage scenario. For more information, see the TDengine Enterprise documentation.
Compatibility
- You can deploy TDengine Enterprise 3.2.0.0 on mainstream Linux distributions, macOS, and Windows.
- You can deploy TDengine OSS Server 3.2.0.0 on mainstream Linux distributions and macOS.
- You can deploy TDengine OSS Client 3.2.0.0 on mainstream Linux distributions, macOS, and Windows.
You can also run TDengine in Kubernetes or in Docker containers. See Supported Platforms for details about the compatibility of TDengine 3.2.0.0 with various architectures and operating systems.
Note: You must upgrade existing clients to TDengine 3.2.0.0 before connecting to a TDengine 3.2.0.0 server.
Upgrading to TDengine 3.2.0.0
Upgrading TDengine OSS
You can upgrade TDengine OSS to version 3.2.0.0 from version 3.0.1.5 or later.
IMPORTANT: If you upgrade to TDengine 3.2.0.0 from any version prior to TDengine 3.2.0.0, you cannot roll back to the previous version. Upgrading to 3.2.0.0 will alter your data such that it cannot be read by versions prior to 3.2.0.0.
To upgrade TDengine OSS, first back up your deployment by making a copy of the TDengine directory. After verifying that your deployment has been backed up, install TDengine 3.2.0.0 as described in the official documentation. It is not necessary to uninstall TDengine before upgrading.
Note: If you have deployed TDengine as a cluster, you must shut down and upgrade all nodes in the cluster to TDengine 3.2.0.0. Rolling upgrades are not supported in TDengine 3.2.0.0.
Upgrading TDengine Enterprise and TDengine Cloud
Contact your account representative for assistance in upgrading TDengine Enterprise or TDengine Cloud.
You can check your current version of TDengine at any time by running the SELECT SERVER_VERSION(); command.
Resolved Issues
For a full list of issues resolved in this release, see our GitHub repository.
