http://www.perlmonks.org?node_id=849609


in reply to file handle limitation of 255

See FileCache. Your OS has a hard limit on open file handles, and maybe it is 255 no matter what ulimit tells you.

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Re^2: file handle limitation of 255
by radnus (Novice) on Jul 14, 2010 at 19:07 UTC
    Hard to believe, considering that I am using Solaris 10. In any case, this restriction is not coming from PERL, but the underlying OS, right?
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      Yes. Perl (not PERL) has no limit on the number of open file handles.

[reply]

      When I logged in as a non root user to a Solaris 10 system, my default file limit (somewhat to my surprise) was 256 but I was able to change it easily enough as shown in the shell session below: 

      # ulimit -n
256
# ulimit -n 1024
# ulimit -n
1024

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[d/l]

        This problem of 255 limit happens even after the hard/soft ulimit has been altered. That is why I started this thread. I set this on /etc/system :- set rlim_fd_max=65536 set rlim_fd_cur=65536 So that I get :- host# ulimit -n 65536 But still I have 255 limitation.

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