Dear community,
I'd like to share the weekly report for you this week. [Big Event] * We plan to hold online-discussion every 2-3 weeks to let contributors communicate more deeply. * Maturity Evaluation draft of IoTDB is published, please have a review [1] * We are voting the 0.10.0-RC4 now, please check and vote! * A new feature: "show latest timeseries", for showing the latest active timeseries, i.e., ordering all timeseries according to how long the series has not written new data. * The MTree is optimized * Memory cost experiment, 20M time series metadata in MTree takes about 7G memory. [1] https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=148645763 [in-progress] * Check point of MTree to accelerate the restart process when there are many timeseries. It takes about 2 minutes for 20M timeseries. * Memory control of storage engine, query engine, flushing memtable, index of each tsfile * Support time range Deletion [bug fix] [IOTDB-765] Fix failed to get upgrade.txt file when using HDFS storage [IOTDB-769] [To rel/0.10] fix precision lost when using PLAIN for FLOAT/DOUBLE [IOTDB-762] Fix set version IndexOutofBound [IOTDB-772] The start-server.sh uses tool long java command in WinOS Fix Restart deadlock bug [IOTDB-761]cherry-picked from v0.10: flink-tsfile-connecto and flink-example dependency conflict: "Some Enforcer rules have failed. Look above for specific messages explaining why the rule failed" Fix spark tsfile bug in 0.9.4/0.10.1 and 0.11.0 Have a great weekend. Thanks —— Dawei Liu
