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authorTim Gardner <tim.gardner@canonical.com>2011-05-24 17:13:05 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-25 08:39:43 -0700
commit0ac1ee0bfec2a4ad118f907ce586d0dfd8db7641 (patch)
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parentdb271cf03f5fe39feab8e1b1818c0880c7290c5c (diff)
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ulimit: raise default hard ulimit on number of files to 4096
Apps are increasingly using more than 1024 file descriptors. See discussion in several distro bug trackers, e.g. BugLink: http://bugs.launchpad.net/bugs/663090 https://issues.rpath.com/browse/RPL-2054 You don't want to raise the default soft limit, since that might break apps that use select(), but it's safe to raise the default hard limit; that way, apps that know they need lots of file descriptors can raise their soft limit without needing root, and without user intervention. Ubuntu is doing this with a kernel change because they have a policy of not changing kernel defaults in userland. While 4096 might not be enough for *all* apps, it seems to be plenty for the apps I've seen lately that are unhappy with 1024. Signed-off-by: Tim Gardner <tim.gardner@canonical.com> Cc: Dan Kegel <dank@kegel.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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