[daip] FILLM message

Claire Chandler cchandle at nrao.edu
Thu Apr 2 16:54:29 EDT 2009


Thanks, I tried again with a new download of the archive file and it 
worked.  There must have been some problem with the other file.

Claire

On Thu, 2 Apr 2009, Eric Greisen wrote:

> cchandle at nrao.edu wrote:
>>  Hi Eric,
>>
>>  I'm trying to load a VLA dataset /home/pasilla/cjc/linux/TP026_1 and
>>  I'm expecting there to be data up to 17:11 UT (according to the scan
>>  listing the archive and the observe file), but FILLM stops at around
>>  13:12 UT with a message
>>  FILLM1  FLDKIO: LBYTES=   10240 BUT IERR = 0
>>
>>  What does this mean?  Is there a problem with the archive file?  How
>>  can I find out if the other 4 hours of data are even in the archive
>>  file?
>
> This error arises either when the IO gives a record that is not 2048*n bytes 
> (not your case) or that the pointers within the data say that the record 
> should be longer than the record read.  Since the disk file is just a byte 
> stream, the only way that the read can return less than the requested number 
> of bytes is at the end of data.  This means that the distributed file has 
> been truncated.  Note - if you used ftp - did you remember to say binary when 
> copying these data?
>
> Cheers,
>
> Eric Greisen
>




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