Re: Recommended why to use btrfs for production?

2016-06-03 Thread Julian Taylor
On 06/03/2016 03:31 PM, Martin wrote: In general, avoid Ubuntu LTS versions when dealing with BTRFS, as well as most enterprise distros, they all tend to back-port patches instead of using newer kernels, which means it's functionally impossible to provide good support for them here (because we

Re: enospace regression in 4.4

2016-04-12 Thread Julian Taylor
On 12.04.2016 20:09, Henk Slager wrote: > On Tue, Apr 12, 2016 at 5:52 PM, Julian Taylor > <jtaylor.deb...@googlemail.com> wrote: >> smaller testcase that shows the immediate enospc after fallocate -> rm, >> though I don't know if it is really related to the ful

enospace regression in 4.4

2016-04-12 Thread Julian Taylor
hi, I have a system with two filesystems which are both affected by the notorious enospace bug when there is plenty of unallocated space available. The system is a raid0 on two 900 GiB disks and an iscsi single/dup 1.4TiB. To deal with the problem I use a cronjob that uses fallocate to give me an

Re: enospace regression in 4.4

2016-04-12 Thread Julian Taylor
ROR: error during balancing '.': No space left on device There may be more info in syslog - try dmesg | tail On 04/12/2016 12:24 PM, Julian Taylor wrote: > hi, > I have a system with two filesystems which are both affected by the > notorious enospace bug when there is plenty of unall

Re: btrfs and numa - needing drop_caches to keep speed up

2016-10-14 Thread Julian Taylor
On 10/14/2016 08:28 AM, Stefan Priebe - Profihost AG wrote: Hello list, while running the same workload on two machines (single xeon and a dual xeon) both with 64GB RAM. I need to run echo 3 >/proc/sys/vm/drop_caches every 15-30 minutes to keep the speed as good as on the non numa system. I'm