Ceph

09/07/2017

03:14 PM Linux kernel client Bug #20998: RHEL74 GA kernel paniced on client node running smallfile tests with 3 active MDS

Ive been running with an upstream kernel built for easy installation on RHEL. The kernel ... 4.13.0-0.rc7.git0.1.el7... Barry Marson

08/28/2017

01:03 PM Linux kernel client Bug #20998: RHEL74 GA kernel paniced on client node running smallfile tests with 3 active MDS

I ran into this problem again with my much larger testbed in the scale lab. Bits used were RHEL74 GA and RHCEPH-3.0-... Barry Marson

08/14/2017

03:40 PM Linux kernel client Bug #20998 (Resolved): RHEL74 GA kernel paniced on client node running smallfile tests with 3 active MDS

While running Ben England's small file test with 2 clients and 3 active MDS servers, one of the clients went down wit... Barry Marson

04/26/2016

03:13 PM CephFS Bug #15502: files read or written with cephfs (fuse or kernel) on client drop all their page cache pages on close

Its interesting. The kernel changelogs reference the page cache invalidation change as
* Fri Mar 04 2016 Rafa... Barry Marson

04/25/2016

02:59 PM CephFS Bug #15502: files read or written with cephfs (fuse or kernel) on client drop all their page cache pages on close

I've verified by adding:
fuse_use_invalidate_cb=true
to the /etc/ceph/ceph.config file that mounting with fu... Barry Marson

04/19/2016

02:43 PM CephFS Bug #15502: files read or written with cephfs (fuse or kernel) on client drop all their page cache pages on close

I was able to make this happen with kernel mode as well. Does that tunable noted in #6 need to be implemented for fu... Barry Marson

04/15/2016

02:30 PM CephFS Bug #15502: files read or written with cephfs (fuse or kernel) on client drop all their page cache pages on close

Kernel is 3.10.0-327.el7.x86_64 ie the GA kernel for RHEL7.2 Barry Marson

04/14/2016

05:36 PM CephFS Bug #15502 (Resolved): files read or written with cephfs (fuse or kernel) on client drop all their page cache pages on close

Testing cephfs file system I/O with early jewel bits (ceph-10.0.4-1.el7cp.x86_64) on:
RHEL72 client mounting a cep... Barry Marson

04/05/2016

06:35 PM CephFS Feature #15393 (Resolved): ceph-fuse: Request for logrotate for client side log files

While running cephfs with fuse, I needed to enable debug mode on the client. I quickly discovered its quite easy to ... Barry Marson