Hi,

i am testing on centos 6 x64 minimal install.

i am mounting successfully:

ceph-fuse -m 10.0.0.1:6789,10.0.0.2:6789,10.0.0.3:6789,10.0.0.4:6789
/ceph-storage/


[root@cn201 log]# df
Filesystem        1K-blocks        Used   Available Use% Mounted on
/dev/sda1          74454192     1228644    69436748   2% /
tmpfs              16433588           0    16433588   0% /dev/shm
ceph-fuse      104468783104 55774867456 48693915648  54% /ceph-storage


Its all fine.

Then i start a (bigger) write:

dd if=/dev/zero bs=256M count=16 of=/ceph-storage/test/dd1

After a second it reaches:

[root@cn201 test]# ls -la /ceph-storage/test/dd1
-rw-r--r-- 1 root root 104726528 Jan 20 15:34 /ceph-storage/test/dd1

and remains there, no byte further.

#ps ax shows:

 1573 pts/0    S+     0:00 dd if=/dev/zero bs=256M count=16
of=/ceph-storage/test/dd1


---

The Kernellog just shows:

fuse init (API version 7.14)

after the mount.


---

on a ceph clusternode i can see:


[root@ceph2 ceph]# cat ceph-mds.ceph2.log
2016-01-20 15:34:07.728239 7f3832ddb700  0 log_channel(cluster) log
[INF] : closing stale session client.21176728 10.0.0.91:0/1635 after
301.302291


But still i can work with the mount. df, ls, even touch <file> works
perfectly. Just writing bigger amounts of data somehow freeze.



I had this issue already with my last tests with

Centos 7
Debian 7
Debian 8
Ubuntu 14

All in x64

--------------------


So as i think that this is no general bug, i assume i have a setup mistake.

So this is my setup for the current setup with centos 6:

1. centos netinstall x64 minimal
2. yum update -y
3.
rpm -i
http://download.ceph.com/rpm-hammer/el6/noarch/ceph-release-1-1.el6.noarch.rpm

rpm -i
http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm

yum -y install yum-plugin-priorities

sed -i -e "s/enabled=1/enabled=1\npriority=1/g" /etc/yum.repos.d/ceph.repo

yum -y install ceph-fuse

4. deactivate selinux
5. network config:

[root@cn201 test]# cat /etc/sysconfig/network-scripts/ifcfg-eth1
DEVICE=eth1
HWADDR=0C:C4:7A:16:EE:3F
TYPE=Ethernet
UUID=19df403f-c1f2-4a39-a458-5596af108ca6
BOOTPROTO=none
ONBOOT=yes
IPADDR0="10.0.0.91"
PREFIX0="24"
MTU=9000


6. Copy ceph.client.admin.keyring to /etc/ceph/

7. mountint:

#ceph-fuse -m 10.0.0.1:6789,10.0.0.2:6789,10.0.0.3:6789,10.0.0.4:6789
/ceph-storage

8. testing:

#dd if=/dev/zero bs=256M count=16 of=/ceph-storage/test/dd1


---------------


So before i switch now all in debug mode:

Anyone any idea ? At least theoretically all fine and should work ?

Thank you !



-- 
Mit freundlichen Gruessen / Best regards

Oliver Dzombic
IP-Interactive

mailto:i...@ip-interactive.de

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