[daip] AIPS File Weirdness

[Eric Greisen]

Laura Chomiuk wrote:
> Hi Eric,
> 	Just an hour or so ago, I started getting strange errors in AIPS.
> At first it was similar to the post here:
> 
> http://listmgr.cv.nrao.edu/pipermail/daip/2011-October/017102.html
> 
> AIPS complained that a file already existed and an old header file was
> present. Note that I'm running this on the NRAO system and I really hadn't
> done anything out of the ordinary.
> 
> I quit out of AIPS and did 'RUN RECAT' as you suggested. This worked at
> first, but then I started getting similar errors after running CALIB a few
> times:
> 
> ostna> task #: Message
> ----------------------------------------
> CV-POS> CALIB1: Task CALIB  (release of 31DEC12) begins
> CV-POS> CALIB1: Using TPYX A17AC . SPLIT . 1  Disk= 3 Usid= 2621
> CV-POS> CALIB1: L1 Solution type
> CV-POS> CALIB1: Doing no flagging this time
> CV-POS> CALIB1: ZCREAT: FILE DA03:UVD0ND001.20T; ALREADY EXISTS
> CV-POS> CALIB1: ZCREAT ERROR     1 FOR MULE        .MEOW  .   1
> CV-POS> CALIB1: ERROR 5 CREATING OUTPUT FILE
> CV-POS> CALIB1: Purports to die of UNNATURAL causes
> CV-POS> CALIB1: cv-post- 31DEC12 TST: Cpu=      0.0  Real=      0  IO=
> 9
> 
> I get this error even if I run RECAT again---that UVD0ND001.20T file seems
> really stuck!
> 
> Are you aware of what might be causing this problem? Any help much
> appreciated! Thanks so much,
> 	Laura

I bet that a file got created and then failed to make it into the CA 
(catalog) file for that disk (3).  Thus all creation programs think that 
the slot is available and try to use it.  Where are you running and what 
diska are they - I can take a look.

Eric