Environment variables in par.txt

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1

https://learninghub.kx.com/forums/topic/environment-variables-in-par-txt

Hi all,


Just checking here if there is any way to use environment variables in par.txt?


I have a segmented database that is available to multiple servers, and one of the segments is mounted on a different path in each server


e.g. in server A it's mounted under /path/to/segment_2/...

in server B it's under /path/to/segment/...


I've tried setting the start of the path to a variable and using e.g. ${MOUNT_PREFIX} and getenv[`MOUNT_PREFIX] in par.txt, but there doesn't seem to be a way to get kdb to resolve these when reading the file.


If this isn't possible, will most likely use sym links instead.


Thanks,

Eoghan

2

As per the documentation, the par.txt file should contain the path to the individual segments. I don't think you can use environment variables. https://code.kx.com/q4m3/14_Introduction_to_Kdb%2B/#144-segmented-tables

"par.txt

containing the paths of the physical locations of the segments, one segment path per line."

3

Thanks for the reply,


Yeah looks like there's no way around it. Thankfully sym links work as expected in par.txt