Apache IoTDB 0.11.4

Bug Fixes

• IOTDB-1303 Disable group by without aggregation function in select clause
• IOTDB-1306 Fix insertion blocked caused the deadlock in memory control module
• IOTDB-1308 Fix users with READ_TIMESERIES permission cannot execute group by fill queries
• IOTDB-1344 Fix cannot create timeseries caused by the timeseries count doesn't reset when deleting storage group
• IOTDB-1384 Some value will disappear while using group by query
• IOTDB-1398 Do not select unseq files when there are uncompacted old unseq files
• ISSUE-3316 Fix query result with the same time range is inconsistent in group by query
• Fix TotalSeriesNumber in MManager counted twice when recovering
• Fix unseq compaction throws a wrong exception if some paths are not in the file
• Fix overlapped data should be consumed first exception when query

Improvements

• [IOTDB-1356] Separate unseq_file_num_in_each_level from selecting candidate file in unseq compaction
• [IOTDB-1412] Unclear exception message thrown when executing empty InsertTabletPlan
• continuous compaction in level compaction strategy when no tsfile is to be closed

New Features

• support brackets with number in timeseries path

Apache IoTDB 0.12.0

New Features

• [IOTDB-68] New shared-nothing cluster
• [IOTDB-507] Add zeppelin-interpreter module
• [IOTDB-825] Aggregation by natural month
• [IOTDB-890] support SDT lossy compression
• [IOTDB-944] Support UDTF (User-defined Timeseries Generating Function)
• [IOTDB-965] Add timeout parameter for query
• [IOTDB-1077] Add insertOneDeviceRecords API in java session
• [IOTDB-1055] Support data compression type GZIP
• [IOTDB-1024] Support multiple aggregated measurements for group by level statement
• [IOTDB-1276] Add explain sql support and remove debug_state parameter
• [IOTDB-1197] Add iotdb-client-go as a git submodule of IoTDB repo
• [IOTDB-1230] Support spans multi time partitions when loading one TsFile
• [IOTDB-1273] Feature/restrucutre python module as well as supporting pandas dataframe
• [IOTDB-1277] support IoTDB as Flink's data source
• [PR-2605] Add level merge to "merge" command

Incompatible changes

• [IOTDB-1081] New TsFile Format
• [ISSUE-2730] Add the number of unseq merge times in TsFile name.

Miscellaneous changes

• [IOTDB-868] Change mlog from txt to bin
• [IOTDB-1069] Restrict the flushing memtable number to avoid OOM when mem_control is disabled
• [IOTDB-1104] Refactor the error handling process of query exceptions
• [IOTDB-1108] Add error log to print file name while error happened
• [IOTDB-1152] Optimize regular data size in traversing
• [IOTDB-1180] Reset the system log file names and maximal disk-space size
• [ISSUE-2515] Set fetchsize through JDBC and Session
• [ISSUE-2598] Throw explicit exception when time series is unknown in where clause
• [PR-2944] Throw exception when device to be queried is not in TsFileMetaData
• [PR-2967] Log memory usage information in SystemInfo for better diagnosis

Bug Fixes

• [IOTDB-1049] Fix NullpointerException and a delete bug in Last query
• [IOTDB-1050] Fix Count timeserise column name is wrong
• [IOTDB-1068] Fix Time series metadata cache bug
• [IOTDB-1084] Fix temporary memory of flushing may cause OOM
• [IOTDB-1106] Fix delete timeseries bug
• [IOTDB-1126] Fix the unseq tsfile delete due to merge
• [IOTDB-1135] Fix the count timeseries prefix path bug
• [IOTDB-1137] Fix MNode.getLeafCount error when existing sub-device
• [ISSUE-2484] Fix creating timeseries error by using "create" or "insert" statement
• [ISSUE-2545, 2549] Fix unseq merge end time bug
• [ISSUE-2611] An unsequence file that covers too many sequence file causes OOM query
• [ISSUE-2688] LRULinkedHashMap does not work as an LRU Cache
• [ISSUE-2709, 1178] Fix cache not cleared after unseq compaction bug, Fix windows 70,10 ci bug in unseq compaction ci
• [ISSUE-2741] getObject method in JDBC should return an Object
• [ISSUE-2746] Fix data overlapped bug after unseq compaction
• [ISSUE-2758] NullPointerException in QueryTimeManager.checkQueryAlive()
• [ISSUE-2905] Fix Files.deleteIfExists() doesn't work for HDFS file
• [ISSUE-2919] Fix C++ client memory leak bug
• [PR-2613] Fix importCSVTool import directory bug & encode bug
• [PR-2409] Fix import csv which can't import time format str
• [PR-2582] Fix sync bug for tsfiles's directory changed by vitural storage group
• [ISSUE-2911] Fix The write stream is not closed when executing the command 'tracing off'

Apache IoTDB 0.11.3

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

Apache IoTDB 0.11.2

Bugfix list:

• IOTDB-1049 Fix Nullpointer exception and a delete bug in Last query
• IOTDB-1060 Support full deletion for delete statement without where clause
• IOTDB-1068 Fix Time series metadata cache bug
• IOTDB-1069 restrict the flushing memtable number to avoid OOM when mem_control is disabled
• IOTDB-1077 add insertOneDeviceRecords API in java session
• IOTDB-1087 fix compaction block flush: flush do not return until compaction finished
• IOTDB-1106 Delete timeseries statement will incorrectly delete other timeseries
• Github issue-2137 fix grafana value-time position bug
• Github issue-2169 GetObject returns String for all data types
• Github issue-2240 fix Sync failed: Socket is closed by peer
• Github issue-2387 The deleteData method exists in Session but not in SessionPool.
• add thrift_max_frame_size in iotdb-engine.properties
• Fix incorrect last result after deleting all data
• Fix compaction recover block restart: IoTDB cannot restart until last compaction recover task finished
• Fix compaction ignore modification file: delete does not work after compaction
• print more insert error message in client
• expose enablePartition parameter into iotdb-engines.properpties

release/0.11.1

Apache IoTDB 0.11.1

Bug Fixes

• IOTDB-990 cli parameter maxPRC shouldn't to be set zero
• IOTDB-993 Fix tlog bug
• IOTDB-994 Fix can not get last_value while doing the aggregation query along with first_value
• IOTDB-1000 Fix read redundant data while select with value filter with unseq data
• IOTDB-1007 Fix session pool concurrency and leakage issue when pool.close is called
• IOTDB-1016 overlapped data should be consumed first
• IOTDB-1021 Fix NullPointerException when showing child paths of non-existent path
• IOTDB-1028 add MAX_POINT_NUMBER format check
• IOTDB-1034 Fix Show timeseries error in Chinese on Windows
• IOTDB-1035 Fix bug in getDeviceTimeseriesMetadata when querying non-exist device
• IOTDB-1038 Fix flink set storage group bug
• ISSUE-2179 fix insert partial tablet with binary NullPointer bug
• add reject status code
• Update compaction level list delete
• Fix query result is not correct
• Fix import errors in Session.py and SessionExample.py
• Fix modules can not be found when using pypi to pack client-py
• Fix Count timeseries group by level bug
• Fix desc batchdata count bug

0.10.1-incubating

Changelog:

Apache IoTDB (incubating) 0.10.1

• [IOTDB-797] InsertTablet deserialization from WAL error
• [IOTDB-788] Can not upgrade all storage groups
• [IOTDB-792] deadlock when insert while show latest timeseries
• [IOTDB-794] Rename file or delete file Error in start check in Windows
• [IOTDB-795] BufferUnderflowException in Hive-connector
• [IOTDB-766] Do not release unclosed file reader, a small memory leak
• [IOTDB-796] Concurrent Query throughput is low
• Query result is not correct when some unsequence data exists
• Change the default fetch size to 10000 in session
• [IOTDB-798] fix a set rowLimit and rowOffset bug
• [IOTDB-800] Add a new config type for those parameters which could not be modified any more after the first start
• [IOTDB-802] Improve "group by" query performance
• [IOTDB-799] remove log visualizer tool from v0.10
• fix license-binary
• [IOTDB-805] Fix BufferUnderflowException when querying TsFile stored in HDFS
• python session client ver-0.10.0
• [IOTDB-808] fix bug in selfCheck() truncate
• fix doc of MeasurementSchema in Tablet
• [IOTDB-811] fix upgrading mlog many times when upgrading system.properties crashed
• Improve IoTDB restart process
• remove jol-core dependency which is introduced by hive-serde 2.8.4
• remove org.json dependency because of license compatibility
• [ISSUE-1551] fix set historical version when loading additional tsfile

release/0.10.0

If you are using v0.8, please upgrade to 0.9.3 first and then upgrade to 0.10.0 after the data is upgraded.

Disclaimer:
Apache IoTDB is an effort undergoing incubation at The Apache Software Foundation (ASF). Incubation is required of all newly accepted projects until a further review indicates that the infrastructure, communications, and decision making process have stabilized in a manner consistent with other successful ASF projects. While incubation status is not necessarily a reflection of the completeness or stability of the code, it does indicate that the project has yet to be fully endorsed by the ASF.

release/0.9.3

[maven-release-plugin] copy for tag release/0.9.3

release/0.9.2

[maven-release-plugin] prepare release release/0.9.2

release/0.9.1

[maven-release-plugin] copy for tag release/0.9.1