Minutes of OTFC Mtg 7/1/99

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DADS (Tony Houston) -

The DADS system is currently working. There were some problems last week. In the past few days, the percentage of up time has been increasing.

Joel reports that the 2 pipe capability for DADS will be installed in the next DADS build, which will occur sometime this summer.

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OPUS (Mike Swam) - The calibration pipeline is operating.

Mike is developing the common switch rules system for OTFC. It is essentially done. A problem appeared with about 600 cases of a null keyword in the catalog. Lisa is investigating.

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getref/upref (Bernie Simon) - Nothing new

Action Item: Ed Hopkins will investigate whether this behavior can be made consistent with DADS, so OTFC processed data can be ingested.

ACTION ITEM: Bernie and Ed will investigate keyword placement for switches.

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Change System (Lisa Gardner, Steve Lubow, & Bernie Shiao) -

Action Item: Lisa is to develop support for the pending datasets table.

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STIS (Bernie Shiao, Ed Hopkins, Grace Mitchell, Melissa McGrath)

Ed asked whether keyword placement would operate before the OTFC system is released externally. The current schedule does not call for that.

ACTION ITEM: Grace to check with the STIS team to be sure this is acceptable.

Action Item: Bernie Shiao will investigate the level of effort required to retrieve the 2700 or so WAVECAL datasets. Lisa will determine the effort required to make the database changes and the ingest process changes for WAVCALs. Since there is no short-term need to change these values, this effort is of low priority.

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Testing (Grace Mitchell, Melissa McGrath, Steve Lubow, Steve Slowinski)

Regression testing - nothing new

Random testing - some mixed STIS and OTFC requests completed.

STIS Testing (Melissa McGrath and Grace Mitchell) - The regression suite is being run and checked. Grace is working on the STIS regression suite. There is a tool being developed by JC in SSG to carry out FITS file comparisons. This tool may prove useful in comparing the results of the regression suite.

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Tools for performance and throughput monitoring (Steve Lubow) - These tools would be useful for determining the current level of system use, the performance impact of OTFC, and for making predictions about future systems configurations. PR #39366 was filed.

We discussed what information would be tracked. The following information for each dataset processed by OTFC should be stored in a database table.

  • DADS start time
  • FTP throughput measures (bytes/sec)
  • Data size
  • DADS transfer time (DDE)

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    Paper products (Megan Donahue) - Paper products are being turned off in August. We discussed the possibility of having OTFC generate them. We decided not to do that.


    OTFC Meeting: (lubow@stsci.edu)