| Subject: |
RE: Zenoss refuses to connect |
| Author: |
Gregg Hughes |
| Posted: |
2018-01-18 17:18 |
Hello, Arthur!
Here are the answers to the first questions
cat /etc/centos-release && uname -a CentOS Linux release 7.3.1611 (Core)
Linux ucspm 3.10.0-514.2.2.el7.x86_64 #1 SMP Tue Dec 6 23:06:41 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
rpm -qa |grep docker && rpm -qa |grep serviced docker-engine-selinux-1.12.5-1.el7.centos.noarch
docker-engine-1.12.1-1.el7.centos.x86_64
serviced-1.2.2-1.x86_64
There's something in the log showing something with a Thin Pool not having enough space. Here's the df -h:
[root@ucspm ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 30G 6.3G 24G 22% /
devtmpfs 7.8G 0 7.8G 0% /dev
tmpfs 7.8G 0 7.8G 0% /dev/shm
tmpfs 7.8G 548K 7.8G 1% /run
tmpfs 7.8G 0 7.8G 0% /sys/fs/cgroup
/dev/sdf1 147G 3.7G 143G 3% /opt/serviced/var/backups
/dev/sde1 49G 4.5G 45G 10% /opt/serviced/var/isvcs
/dev/sdd1 16G 34M 16G 1% /tmp
tmpfs 1.6G 0 1.6G 0% /run/user/0
[root@ucspm ~]#
I don't know about managing this Thin Pool, but google is my friend.....
Thanks!
Gregg
------------------------------
Gregg Hughes
Sr Systems Engineer
ISC International Limited
Milwaukee WI
4147210301
------------------------------
Attachments:
serviced.log.txt
| Subject: |
RE: Zenoss refuses to connect |
| Author: |
Arthur |
| Posted: |
2018-01-20 08:29 |
Hi Gregg
Zenoss V5 uses two thin-pools
docker-pool for Docker Data and serviced-pool for Application Data
https://www.zenoss.com/sites/default/files/Control_Center_Planning_Guide_r1.5.0_d1930.17.331.pdf
These blocks are requested and mounted on demand. That's why you don't see it in your df –h output.
As from the logs I can't tell you which one has not enough free blocks. I would start with the following command to figure out which thin-pool is causing the issue:
# lsblk
# vgs
# lvs
Cheers
------------------------------
Arthur
------------------------------
| Subject: |
RE: Zenoss refuses to connect |
| Author: |
Gregg Hughes |
| Posted: |
2018-01-22 13:00 |
Hello, Arthur!
Thanks for the information. I've attached the results of the commands you outlined and I'm trawling through the Docker pages to see if I can find out what the recommended values should be. So far, everything looks to be in order.
FYI, this was the appliance I deployed, not an ISO or a repository installation.
Thanks very much!
Gregg
------------------------------
Gregg Hughes
Sr Systems Engineer
ISC International Limited
Milwaukee WI
4147210301
------------------------------
Attachments:
docker_virtual_disks.txt
| Subject: |
RE: Zenoss refuses to connect |
| Author: |
Gregg Hughes |
| Posted: |
2018-01-22 14:52 |
Hello, Arthur!
Fixed it.
Linky to the magic buttons.....
Apparently every time I've rebooted the VM or restarted Docker it's started a new snapshot, not just the application. Figured it couldn't get more broken, so gave it a try and it's back - almost. There haven't been any statistics collected for about a month so I have some empty graphs that should get filled in as things go.
Thanks for the direction - going to get "Docker for Dummies" out and start studying.....
Gregg
------------------------------
Gregg Hughes
Sr Systems Engineer
ISC International Limited
Milwaukee WI
4147210301
------------------------------
| Subject: |
RE: Zenoss refuses to connect |
| Author: |
Arthur |
| Posted: |
2018-01-23 15:11 |
Hi Gregg
You're welcome. Appreciated your feedback and how you fixed it. I hope it will help others too.
Cheers
------------------------------
Arthur
------------------------------
