1.30.22

Enhancement

• Temporary files to be loaded with loadS3Object will not be removed immediately.

Bug Fixes

• Added limit (10) to parameter threadCount of loadS3Object.

• Added validation check for the outputFileName parameter of getS3Object.

Enhancement

• Enhanced the stability of this plugin during multi-threaded operations.

Bug Fixes

• Strings that cannot be converted to MINUTE will not be parsed when using hbase::load.

• Calling hbase:load to load a table that has been disabled will raise an exception, and terminate the execution, instead of crashing the server.

• Added limit to the string length for its conversion to DolphinDB CHAR. If the length of the string is larger than 1, a NULL value is returned.

• Added check for the conversion of data of SECOND type.

• Calling plugin methods after closing the connection now correctly raises an error instead of crashing the server.

• Added input validation for the isFramed parameter of function connect.

Enhancements

• Cluster environment can now be configured with cluster IP address specified in function connect.

• Enhanced error messages.

Bug Fixes

• Fixed an error when using getListDirectory on an empty folder.

• Fixed the issue that caused the readFile function to fail when used within a do-while loop. The problem was caused by having too many open file handles, which resulted in an unavailable and disconnected Hadoop data node.

• Fixed the conflict of two handles returned by connect as they shared the same hdfs connection.

Enhancement

• Enhanced error texts for hdf5::saveHDF5.

Bug Fixes

• Fixed the issue where the server crashed when hdf5::ls is used on a specific HDF5 file.

• Fixed the issue where the server crashed when importing multiple files in parallel.

New Features

• Added validation for parameters that use the dictionary data form.

• The plugin now performs a check of the byte length of the data to be sent.

Enhancement

• Removed methods httpCreateSubJob, httpCreateMultiParserSubJob, httpCancelSubJob and httpGetJobStat.

Enhancement

• Added return values for functions eventGetParts, getOffsetPosition, and getOffsetCommitted.

Bug Fixes

• Fixed an issue where the interface kafka::pollByteStream failed to receive data in non-JSON format.

• Fixed the issue where the crashes occurred due to multi-threaded operations.

New Feature

• The plugin now supports nested lists containing kdb+ char type elements.

Bug Fixes

• Fixed an issue that caused the server to crash when calling loadTable() without passing the symPath parameter.

• Fixed an issue where calling loadTable() could not correctly parse a kdb+ sym file if the file name is not "sym".

• Fixed an issue where calling loadTable() after terminating the kdb+ process could crash the server.

New Feature

• Added support for reading .mat files using multiple threads.

Bug Fix

• Added input validation for the varName parameter of mat::writeMat.

• Enhanced error messages.

• Improved parameter validation for mongodb:connect, mongodb::load and mongodb::aggregate.

Bug Fixes

• If an MQTT server is closed, an error message is reported when connecting through mqtt::connect.

• Fixed the error message of the default value of the batchSize parameter of method connect.

• Fixed the issue where the server crashed or got stuck when NULL values are passed as arguments to mqtt:publish or mqtt::createCsvFormatter.

• Fixed the issue where the subscriber failed to receive published data containing NULL values.

• Fixed the issue where the subscriber received data of incorrect data types when the published data contained data of CHAR or MONTH type.

Bug Fixes

• Added input validation for the startTime parameter of mseed::write.

• An error will be reported when the input data of mseed::parseStreamInfo cannot be parsed or the parsed sid (Station Identifier) is invalid.

• Added check for mseed:parse when an empty string is passed in, and an error will be reported in this case.

• Added input validation for mseed::read.

• Calling plugin methods after closing the connection now correctly raises an error instead of crashing the server.

Enhancements

• Enhanced error message.

• Added input validation for odbc::close.

Bug Fixes

• Fixed a crash when multiple threads use the same connection to append data concurrently.

• Fixed a server crash which happened occasionally when closing an ODBC connection.

• Fixed the issue where the server crashed due to unsubscription after multiple subscriptions through the same connection.

• Fixed the issue where the server crashed due to multi-threaded jobs.

Enhancement

• Optimized data processing when importing data of temporal or string type as numeric values.

Bug Fix

• Fixed the incorrect outputs when accessing temporal values with NULL.

• Enhanced error messages.

• Added new plugin SchemalessWriter.

Bug Fixes

• Fixed a memory leak when calling signal::secc frequently.

• Fixed a crash caused by concurrent execution of methods signal::fft, signal::ifft, and signal::secc by multiple threads.

• Fixed the wrong plus and minus signs of the output returned by signal::fft when the number of X was even.

Enhancement

• Added input validation for the key-value "nu" in parameter params of method svm:fit.

Bug Fix

• Fixed server crash caused by multi-threaded execution of svm:fit.

New Feature

• Compressing a folder is now available.

Enhancement

• Enhanced error messages.

New Feature

• The plugin is now compatible with Windows operating systems.

Enhancements

• Enhanced error messages.

• Enhanced the log messages that are printed to the console.

Bug Fix

• Fixed an issue where the plugin did not properly close open file handles when an exception was thrown. This caused the unused open file handles to build up over time.

Enhancement

• Enhanced error messages.

Bug Fix

• Added input validation for zmq::cancelSubJob that only accepts a scalar.