Hi, after years of using parallel happily, silently on my private pc, i am presumeably facing a PEBKAC, and could not resolve it in several days.
Basically, i am building a tree of sparse files resembling the content of an external device, intending it to be searchable easily with find, even if is disconnected. But since there are almost 10000 files, just using find on all of them gives around 1M of filenames. To execute a combination of truncate and touch on them on a single core takes about a minute, which is calling for using parallel (on my 32 cpu server). But ... I am running into this (on debian stable): > parallel: Warning: Only enough file handles to run 252 jobs in parallel. > parallel: Warning: Running 'parallel -j0 -N 252 --pipe parallel -j0' or > parallel: Warning: raising 'ulimit -n' or 'nofile' in > /etc/security/limits.conf > parallel: Warning: or /proc/sys/fs/file-max may help. Well, i did raise the 'nofile' limit as indicated, even tried the --pipe construct, to no avail. ulimit -n gives 1024 Apart from that, there seems to be some misunderstanding from my side, as i am going round in circles without making progress. Any hints would be greatly appreciated. Apparently, this one is above my paygrade and skill level. :-( regards, Ecks
