The Apache IoTDB team is pleased to announce the release of Apache IoTDB 1.3.3.
Apache IoTDB (Database for Internet of Things) is an IoT native database with high performance for data management and analysis, deployable on the edge and the cloud. Apache IoTDB 1.3.3 is the latest version of the v1 series. Feel free to upgrade from earlier version. ## Features & Improvements - Storage Engine: Added new data types String, Blob, Date, and Timestamp. - Storage Engine: Multi-level storage has added a rate-limiting mechanism. - Storage Engine: New merge target file splitting feature, with additional configuration file parameters, and improved memory control performance of the merge module. - Data Query: Filter performance optimization, enhancing the speed of aggregate queries and where condition queries. - Data Query: New client query requests load balancing optimization. - Data Query: New active metadata statistics query added. - Data Query: Optimized memory control strategy during the query planning phase. - Data Synchronization: The sender supports transferring files to a specified directory, and the receiver automatically loads them into IoTDB. - Data Synchronization: The receiver has a new automatic conversion mechanism for data type requests. - Data Synchronization: Enhanced observability on the receiver side, supporting ops/latency statistics for multiple internal interfaces, consolidated into a single pipeTransfer display. - Data Loading: DataNode actively listens and loads TsFiles, with additional observability metrics. - Stream Processing Module: New data subscription capability, supporting subscription to database data in the form of data points or tsfile files. - Stream Processing Module: Alter Pipe supports the ability to alter the source. - System Management: Optimized configuration files, with the original three configuration files merged into one, reducing user operational costs. - System Management: Optimized restart recovery performance, reducing startup time. - System Management: Internal addition of monitoring items such as device count, estimated remaining time for data synchronization, size of data to be synchronized, and synchronization speed. - Scripts and Tools: The import-tsfile script is expanded to support running the script on a different server from the IoTDB server. - Scripts and Tools: New metadata import and export scripts added. - Scripts and Tools: New support for Kubernetes Helm added. - AINode: AINode module added. ... ## Bugs - Fixed the issue of NullPointerException (NPE) when merging chunks with modifications and empty pages in the sequential space. - Fixed the issue where the wrong parent file was used when reassigning the file position for skipped files during merge, leading to failure in creating hard links. - Fixed the issue where the newly added four data types had null values written, and the TsFile handling of the STRING type was incorrect, causing a BufferUnderflowException: null. - Fixed the issue in the high availability scenario where stopping the DataNode resulted in a PipeException: Failed to start consensus pipe. - Fixed the issue in Stream mode where the first batch of written data points might require a flush to be synchronized. - Fixed the compatibility issue with pipe plugin upgrades. - Fixed the issue where the `ORDER BY` clause became ineffective when used in combination with `LIMIT` in the last query. ... The full release note is available at: https://dlcdn.apache.org/iotdb/1.3.3/RELEASE_NOTES.md The release is available for download at: http://iotdb.apache.org/Download Maven artifacts for JDBC driver, session SDK can be found at: https://search.maven.org/search?q=3Dg:org.apache.iotdb Regards, The Apache IoTDB team
