Bug Fixes

• ISSUE-2505 ignore PathNotExistException in recover and change recover error to warn
• IOTDB-1119 Fix C++ SessionDataSet bug when reading value buffer
• Fix SessionPool does not recycle session and can not offer new Session due to RunTimeException
• ISSUE-2588 Fix dead lock between deleting data and querying in parallel
• ISSUE-2546 Fix first chunkmetadata should be consumed first
• IOTDB-1126 Fix unseq tsfile is deleted due to compaction
• IOTDB-1137 MNode.getLeafCount error when existing sub-device
• ISSUE-2624 ISSUE-2625 Avoid OOM if user don't close Statement and Session manually
• ISSUE-2639 Fix possible NPE during end query process
• Alter IT for An error is reported and the system is suspended occasionally
• IOTDB-1149 print error for -e param when set maxPRC<=0
• IOTDB-1247 Fix the insert blocked caused the bugs in mem control module
• ISSUE-2648 Last query not right when having multiple devices
• Delete mods files after compaction
• ISSUE-2687 fix insert NaN bug
• ISSUE-2598 Throw explicit exception when time series is unknown in where clause
• Fix timeseriesMetadata cache is not cleared after the TsFile is deleted by a compaction
• ISSUE-2611 An unsequence file that covers too many sequence file causes OOM query
• IOTDB-1135 Fix count timeseries bug when the paths are nested
• ISSUE-2709 IOTDB-1178 Fix cache is not cleared after compaction
• ISSUE-2746 Fix data overlapped bug after the elimination unseq compaction process
• Fix getObject method in JDBC should return an Object
• IOTDB-1188 Fix IoTDB 0.11 unable to delete data bug
• Fix when covering a tsfile resource with HistoricalVersion = null, it’ll throw a NPE
• fix the elimination unseq compaction may loss data bug after a delete operation is executed
• Fix a bug of checking time partition in DeviceTimeIndex
• Throw exeception when device to be queried is not in tsFileMetaData
• Fix unseq compaction file selector conflicts with time partition bug
• Fix high CPU usage during the compaction process

Improvements

• IOTDB-1140 optimize regular data encoding
• Add more log for better tracing
• Add backgroup exec for cli -e function
• Add max direct memory size parameter to env.sh
• Change last cache log to debug level

New Features

• Add explain sql support