The following are the official release notes for the MWA ASVO. Changes/fixes are tagged with:

•  This item relates to the front end web site of the MWA ASVO and the associated VO TAP service.
•  This item relates to the python API and command line client of the MWA ASVO (Command Line Client).
•  This item relates to the server back-end of the MWA ASVO system, which includes the dispatch service, processor service and cotter.

24-Jul-2018

• Enhancements:
  •  new command line option: -e <error_file> | --error-file=<error_file> | --errfile=<error_file>. This allows users to specify a file which all job-related errors are written to in a machine-readable format (JSON). This is to make it easier for users to write batch processes to submit, download and track MWA ASVO jobs. 
  •  mwa_client now uses the argparse module instead of the deprecated optparse module to process command line arguments.
  •  Command line option -w | --download-only= now accepts "all" as well as a job id of 0 to mean- download any jobs which are available for download.

26-Jun-2018

• Fixes
  
  •  changed the way internal worker processes communicate, in order to prevent the stdout errors such as "Invalid file object..." when running jobs.
• Enhancements:
  
  •  all new job products will now have their sha1 hash calculated (you can see it under the "Download" button). To verify the integrity of your download, use an sha1 tool (for example sha1sum <filename>) to compare the expected versus the actual checksum.
  •  the sha1 hash is now displayed in the mwa_client when a download completes.
  •  the mwa_client will now display the file size (in bytes) of completed jobs along side the other job information when using the -l (--list-only) option

24-Jun-2018

• Enhancements:
  •  new command line options for mwa_client, allows you to submit jobs and exit (-s); list your jobs and exit (-l); download a job (-w JOBID); download all your jobs (-w 0). It still supports submitting, monitoring and blocking until all downloads are complete as it did before. See manta-ray-client github for the new options and examples.
  •  added an "example.csv" template to make it easier for new users to craft a csv file.
  •  minor updates to the output text, including a new option (-v) to show verbose output.

20-Jun-2018

• Fixes:
  •  Accessing a web page which requires the user to be logged in will now take them to a login page.
  •  On query page, "project" drop down is now sorted correctly and includes a short description (which is also searchable).
  •  Fixed an issue where the "Jobs" page and the manta-ray-client did not allow the use of a non-integer time resolution setting. e.g. 0.5 would result in an error:  "Time resolution not of type integer".
  •  Fixed an issue where the query form is not showing all observations when performing a search.
  •  Fixed an issue where rerunning the manta-ray-client with the same csv file produces multiple jobs (which are all the same except for the order of the parameters), instead of 'reconnecting' to the existing job(s).
  •  Fixed several issues when closing down processes.
  •  The processor will explicitly ignore files in the archive which are not required for the data job. This will prevent errors like this: "MWA: 50 and NGAS: 51 file number mismatch; ignoring: 1066572736" from occurring.
• Enhancements:
  •  Updated look and feel.
  •  Changed font to be much more readable for numbers.
  •  We've added a twitter feed (@mwa_asvo) to the front page which will be used to update users of any service status changes or issues to the MWA ASVO.
  •  Dates are now displayed in ISO 8601 format.
  •  Added Change Password feature.
  •  On query page, "from date" can be searched without "to date" and vice-versa.
  •  Upon registering, users will now be shown a message box telling them their registration is successful and that they will need to verify their email address. This should prevent users from clicking register multiple times.
  •  Added information about compliance with privacy policy.

30 May 2018

• Fixes:
  •  Added keyboard interrupt handler to the mwa_client to prevent nuisance error messages when sending Ctrl-C key sequence.
• Enhancements:
  •  Made white text in mwa_client brighter.
  •  mwa_client now ignores lines beginning with # so you can now comment your csv files.

23 May 2018

• Fixes:
  •  Modified prerequisites so it includes a minimum version number of the "requests" package. Users reported that using "requests" package below version 2.18.3 was causing errors.

26 February 2018

• Fixes:
  •  VO TAP service returns correct output for availability and capabilities; also is now MWA branded.

12 February 2018

• Fixes:
  •  Processor now ignores directory structure of flag file when unzipping which was causing issues for some older observations.

9 February 2018

• Enhancements:
  •  The processor now uses a round robin user queue for processing jobs. This means if user A submits 100 jobs and, a few minutes later, user B submits 2 jobs, then it will alternate between processing A's and B's jobs such that user B is not waiting for user A's jobs to finish before user B's jobs start. Instead it would process them: A, B, A, B, A, A, A... and so on. This will result in a much more fair allocation of jobs for users.
  •  If the processor is shutdown, it will now re-queue the job.

7 February 2018

• Enhancements:
  •  Added buttons on the query results page to allow export of the results to csv format so they can be used as inputs to the manta-ray-client.
  •  Jump out of mwa_client earlier and report error, if there are no jobs specified in the csv file.
  •  mwa_client will ignore empty rows in csv file.
  •  The generated metafits file passed to the cotter process is now included in the output zip file for conversion jobs.

18 January 2018

• Enhancements:
  •  Change from displaying channel number to channel frequency in search results.

27 December 2017

•  Initial release