Hecuba 2.1

C++ interface

• Simplify user interface
• Remove yaml dependency
• Add Extrae instrumentation

Python

• Upgrade to 3.10

Documentation

• Update documentation for C++ interface
• Update README
• Add missing documentation on Python requirements
• Add documentation for c4s

ARROW

• Simplify deployment making ARROW optional: Add USE_ARROW compilation flag

StorageNumpy

• Add HECUBA_LAZY_WRITES to enable/disable lazy writes

Performance improvements

• Improve SYNC operation time.
• Improve-writer
• Use a single thread for write operations and a single table for
  StorageNumpys (HECUBA_SN_SINGLE_TABLE): new-writer-thread
  Create a static CacheTable to access StorageNumpys (for single table case)

C4S

• Allow to configure number of cores fo application and cassandra

Bug Fixing

• Fix an installation problem: fix-missing-storage-jar
• Fix an installation problem with missing '--prefix'
• Fix python arrow installation
• Fix install process
• Fix bug when processing attributes read from cassandra: fix bug in IStorage::extractMultiValuesFromQueryResult
• Fix a bug in IStorage::setCache
• Fix writes of a single column into cassandra
• Fix missing return value in attribute
• Add thread support to alive objects state
• Fix bug when disconnecting Cassandra
• Make sure Cassandra is available

Hecuba 1.2.4

Add missing python support for StorageStream class

Hecuba 1.2.3

Changelog

C++ interface

• Add C++ API
• Add support to write a single attribute in storageobj.

Stream interface

• Streaming tools deployment
• Add streaming API

API:

• Add 'sync' to API
• Modify split with optional parameter (cols=true/false)

Others:

• CREATE_SCHEMA to default true
• Change UUID generation (UUID3->UUID5)

Bugfixing