2020 March 31 - 15:00 UT

Attendees

Contact Information

• Doodle: https://doodle.com/poll/xevpq3xzump3zyds
• Zoom Details: https://alma.zoom.us/j/579126779

Action Items from previous meeting:

• Share with ACE/TAO the bugfix for CORBA false timeouts: https://github.com/DOCGroup/ACE_TAO/issues/1053
• Share TAT parsing utility/scripts
  • ACS/LGPL/acsBUILD/src/tat_parser.py
  • Parse the test.log file generated from the 'make test' directive:
    • 'tat_parser.py test.log'
• Follow up ACS Website tasks

Updates since last Meeting:

• Port ACS to Java 11
  • ACS and the ALMA SW has been successfully ported to Java 11
  • Acceptance of ALMA SW using Java 11 is already undergoing
• Port ACS to Python 3
  • ACS was partially ported to Python 3 with 2019OCT release
    • Provides both Python 2 and 3 interpreters using 'pyenv'
    • Versions 2.7.16 and 3.6.9 are currently provided by ACS
  • Several bug-fixes in 2019DEC and 2020FEB
    • Initial tests show that it only works for clients
  • More bug-fixes and port of containers done in 2020APR
    • ~2% difference in tests results between Python 2 and 3
    • Mostly, the difference is in the output due to the interpreter version,
      • We do not discard some small pending compatibility changes
  • Mostly, changing between Python 2 and 3 means only to execute 'pyenv':
    • 'pyenv 2.7.16'
    • 'pyenv 3.6.9'
    • Only exception is acstime, which needs to be recompiled due to swig code being compiled and linked against only one Python header/library file
• ACS Changes
  • Enabled ACE/TAO iterators for CORBA types
  • ACS Container Daemon capability to create stacktraces and/or heap/core dumps
    • Works for Python, Java and C++
  • PyXB Upgrade to 1.2.6 (Latest)
    • Affects code generated using pyxbgen (XSDBIND Makefile declarations)
    • Mostly the code is compatible:
      • XSD sequence was changed from list ([...]) to an interable (_PluralBinding class)
        • In most cases they're compatible, but under some specific usage it may not
• Stabilization of TAT module tests
  • There were around 40% of the tests failing. This has been lowered to around 5%, but we want to aim to at least around 1-3%
• Refactor of ACS Makefile
  • The refactor of ACS Makefile is currently stalled in favor of the Python 3 porting and tests stabilization
• RedHat 8 / CentOS 8
  • Start investigation about ACS/Common and RH/CentOS 8 compatibility
    
    • 
      
• Bug-fixing
  • Fix memory leak in Components Smart Ptr class
    • 
  • enumpropROImpl and enumpropRWImpl are initializing the BACI property with an uninitialized default value
    
    • 
  • Overriding the value of in env. defined CPU in the acs makefile
    
    • 
  • Behavior of retrieving non-existent loggers in Java, C++ and Python is different
    
    • 
  • archive_delta and archive_delta_percent don't work if pollingInterval=0
    
    • 
• ACS 2020APR was finished today and internal pre-release published
  • Will reach the community in around 2 months

2020 Planning:

• ACS website: Still not published. Low priority
• Port ACS to Python 3
  • 2020AUG is expected to be a Python 3 only version of ACS, but it may still be compatible with Python 2 for a couple of releases afterwards
  • This only means that no further efforts would be made to make it compatible with Python 2
• ACS Tests stabilization (Probably by finished with 2020JUN release)
• Python 3 bug-fixing
• Refactor ACS Makefile
  • Core of the work is already done
  • Need to re-schedule the pending tasks
• Re-design the notification service
  • This is a tentative work to provide an alternative for the current notification service
  • We're in the planning phase of this project

Other institutions plans and proposed topics

Any other business?

• Confluence
  • This is the official content collaboration tool now used at ALMA.
  • ACS space is open to public, but editing is limited to registered users.
  • People interested in editing should let us know by e-mail either to acs-discuss or directly to Tomas Staig.
• ACS Community Bitbucket server has been separated from the ALMA Bitbucket server
  • https://bitbucket.alma.cl/projects/ASW/repos/acs/browse

Conclusions/Action Items

• Type your task here, using "@" to assign to a user and "//" to select a due date