Public bug reported: [Impact] Without this nofile limit fix, large ceph cluster fails to start or stops handling requests.
[Fix] Ceph upstream applied a new nofile limit(10x) to Giant+ releases (vivid in Ubuntu repo). https://github.com/ceph/ceph/pull/2156/files [Test case] Check that new nofile ulimit is properly applied as 32768 -> 327680: $ cat /proc/$(pgrep -n ceph-osd)/limits | grep 'Max open files' [Regression Potential] minimal, If we set 1M nofile ulimit, the daemon will fail to start due to the default fs.nr_open value. However this time, we will apply 0.3M which should not cause troubles. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: ceph 0.80.7-0ubuntu0.14.04.1 ProcVersionSignature: Ubuntu 3.13.0-44.73-generic 3.13.11-ckt12 Uname: Linux 3.13.0-44-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 Date: Wed Feb 11 07:14:43 2015 Ec2AMI: ami-00000016 Ec2AMIManifest: FIXME Ec2AvailabilityZone: nova Ec2InstanceType: m1.smallswap Ec2Kernel: aki-00000002 Ec2Ramdisk: ari-00000002 ExecutablePath: /usr/bin/ceph-osd ProcEnviron: TERM=linux PATH=(custom, no user) SourcePackage: ceph UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: ceph (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug ec2-images trusty -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to ceph in Ubuntu. https://bugs.launchpad.net/bugs/1420647 Title: Please apply nofile limit fix of ceph-osd to trusty, utopic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ceph/+bug/1420647/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
