7:49 p.m.
Hello everybody,
we run a 3 node self hosted cluster with GlusterFS. I had a lot of
problem upgrading ovirt from 4.4.10 to 4.5.0.2 and now we have cluster
instability.
First I will write down the problems I had with upgrading, so you get a
bigger picture:
* engine update when fine
* But nodes I could not update because of wrong version of imgbase, so
I did a manual update to 4.5.0.1 and later to 4.5.0.2. First time
after updating it was still booting into 4.4.10, so I did a reinstall.
* Then after second reboot I ended up in the emergency mode. After a
long searching I figure out that lvm.conf using *use_devicesfile
*now but there it uses the wrong filters. So I comment out this and
add the old filters back. This procedure I have done on all 3 nodes.
* Then in cockpit on all nodes I see errors about:
|ovs|00077|stream_ssl|ERR|Private key must be configured to use SSL|
to fix that I run *vdsm-tool ovn-config [engine IP] ovirtmgmt, *and
later in then web interface I choice for every node: enroll certificate.
* between upgrading the nodes, I was a bit to fast to migrate all
running VMs inclusive the HostedEngine, from one host to another and
then hosted engine crashes one time. But it came back after some
minutes and since this the engine runs normal.
* Then I finish the installation with updating the cluster
compatibility version to 4.7.
* I notice some unsync volume warning, but because I had this in the
past to, after upgrading, I though after some time they will
disappear. The next day there still where there, so I decided to put
the nodes again in the maintenance mode and restart the glusterd
service. After some time the sync warnings where gone.
So now the actual problem:
Since this time the cluster is unstable. I get different errors and
warning, like:
* VM [name] is not responding
* out of nothing HA VM gets migrated
* VM migration can fail
* VM backup with snapshoting and export take very long
* VMs are getting very slow some times
* Storage domain vmstore experienced a high latency of 9.14251
*
ovs|00001|db_ctl_base|ERR|no key "dpdk-init" in Open_vSwitch record
"." column other_config
* 489279 [1064359]: s8 renewal error -202 delta_length 10 last_success
489249
* 444853 [2243175]: s27 delta_renew read timeout 10 sec offset 0
/rhev/data-center/mnt/glusterSD/onode1.example.org:_vmstore/3cf83851-1cc8-4f97-8960-08a60b9e25db/dom_md/ids
* 471099 [2243175]: s27 delta_renew read timeout 10 sec offset 0
/rhev/data-center/mnt/glusterSD/onode1.example.org:_vmstore/3cf83851-1cc8-4f97-8960-08a60b9e25db/dom_md/ids
* many of: 424035 [2243175]: s27 delta_renew long write time XX sec
I will put here the sanlock.log messages and vdsm.log.
Is there a way that I can fix this issues?
Regards!
Jonathan
8:24 p.m.
On Sun, May 29, 2022 at 7:50 PM Jonathan Baecker <jonbae77(a)gmail.com> wrote:
Hello everybody,
we run a 3 node self hosted cluster with GlusterFS. I had a lot of problem upgrading
ovirt from 4.4.10 to 4.5.0.2 and now we have cluster instability.
First I will write down the problems I had with upgrading, so you get a bigger picture:
engine update when fine
But nodes I could not update because of wrong version of imgbase, so I did a manual
update to 4.5.0.1 and later to 4.5.0.2. First time after updating it was still booting
into 4.4.10, so I did a reinstall.
Then after second reboot I ended up in the emergency mode. After a long searching I
figure out that lvm.conf using use_devicesfile now but there it uses the wrong filters. So
I comment out this and add the old filters back. This procedure I have done on all 3
nodes.
When use_devicesfile (default in 4.5) is enabled, lvm filter is not
used. During installation
the old lvm filter is removed.
Can you share more info on why it does not work for you?
- output of lsblk
- The old lvm filter used, and why it was needed
- output of vdsm-tool config-lvm-filter
If using lvm devices does not work for you, you can enable the lvm
filter in vdsm configuration
by adding a drop-in file:
$ cat /etc/vdsm/vdsm.conf.d/99-local.conf
[lvm]
config_method = filter
And run:
vdsm-tool config-lvm-filter
to configure the lvm filter in the best way for vdsm. If this does not create
the right filter we would like to know why, but in general you should use
lvm devices since it avoids the trouble of maintaining the filter and dealing
with upgrades and user edited lvm filter.
If you disable use_devicesfile, the next vdsm upgrade will enable it
back unless
you change the configuration.
Also even if you disable use_devicesfile in lvm.conf, vdsm still use
--devices instead
of filter when running lvm commands, and lvm commands run by vdsm ignore your
lvm filter since the --devices option overrides the system settings.
...
I notice some unsync volume warning, but because I had this in the
past to, after upgrading, I though after some time they will disappear. The next day there
still where there, so I decided to put the nodes again in the maintenance mode and restart
the glusterd service. After some time the sync warnings where gone.
Not clear what these warnings are, I guess Gluster warning?
So now the actual problem:
Since this time the cluster is unstable. I get different errors and warning, like:
VM [name] is not responding
out of nothing HA VM gets migrated
VM migration can fail
VM backup with snapshoting and export take very long
How do you backup the vms? do you sue a backup application? how is it
configured?
VMs are getting very slow some times
Storage domain vmstore experienced a high latency of 9.14251
ovs|00001|db_ctl_base|ERR|no key "dpdk-init" in Open_vSwitch record
"." column other_config
489279 [1064359]: s8 renewal error -202 delta_length 10 last_success 489249
444853 [2243175]: s27 delta_renew read timeout 10 sec offset 0
/rhev/data-center/mnt/glusterSD/onode1.example.org:_vmstore/3cf83851-1cc8-4f97-8960-08a60b9e25db/dom_md/ids
471099 [2243175]: s27 delta_renew read timeout 10 sec offset 0
/rhev/data-center/mnt/glusterSD/onode1.example.org:_vmstore/3cf83851-1cc8-4f97-8960-08a60b9e25db/dom_md/ids
many of: 424035 [2243175]: s27 delta_renew long write time XX sec
All these issues tell use that your storage is not working correctly.
sanlock.log is full of renewal errors form May:
$ grep 2022-05- sanlock.log | wc -l
4844
$ grep 2022-05- sanlock.log | grep 'renewal error' | wc -l
631
But there is lot of trouble from earlier months:
$ grep 2022-04- sanlock.log | wc -l
844
$ grep 2022-04- sanlock.log | grep 'renewal error' | wc -l
29
$ grep 2022-03- sanlock.log | wc -l
1609
$ grep 2022-03- sanlock.log | grep 'renewal error' | wc -l
483
$ grep 2022-02- sanlock.log | wc -l
826
$ grep 2022-02- sanlock.log | grep 'renewal error' | wc -l
242
Here sanlock log looks healthy:
$ grep 2022-01- sanlock.log | wc -l
3
$ grep 2022-01- sanlock.log | grep 'renewal error' | wc -l
0
$ grep 2021-12- sanlock.log | wc -l
48
$ grep 2021-12- sanlock.log | grep 'renewal error' | wc -l
0
vdsm log shows that 2 domains are not accessible:
$ grep ERROR vdsm.log
2022-05-29 15:07:19,048+0200 ERROR (check/loop) [storage.monitor]
Error checking path
/rhev/data-center/mnt/glusterSD/onode1.example.org:_data/de5f4123-0fac-4238-abcf-a329c142bd47/dom_md/metadata
(monitor:511)
2022-05-29 16:33:59,049+0200 ERROR (check/loop) [storage.monitor]
Error checking path
/rhev/data-center/mnt/glusterSD/onode1.example.org:_data/de5f4123-0fac-4238-abcf-a329c142bd47/dom_md/metadata
(monitor:511)
2022-05-29 16:34:39,049+0200 ERROR (check/loop) [storage.monitor]
Error checking path
/rhev/data-center/mnt/glusterSD/onode1.example.org:_data/de5f4123-0fac-4238-abcf-a329c142bd47/dom_md/metadata
(monitor:511)
2022-05-29 17:21:39,050+0200 ERROR (check/loop) [storage.monitor]
Error checking path
/rhev/data-center/mnt/glusterSD/onode1.example.org:_data/de5f4123-0fac-4238-abcf-a329c142bd47/dom_md/metadata
(monitor:511)
2022-05-29 17:55:59,712+0200 ERROR (check/loop) [storage.monitor]
Error checking path
/rhev/data-center/mnt/glusterSD/onode1.example.org:_vmstore/3cf83851-1cc8-4f97-8960-08a60b9e25db/dom_md/metadata
(monitor:511)
2022-05-29 17:56:19,711+0200 ERROR (check/loop) [storage.monitor]
Error checking path
/rhev/data-center/mnt/glusterSD/onode1.example.org:_vmstore/3cf83851-1cc8-4f97-8960-08a60b9e25db/dom_md/metadata
(monitor:511)
2022-05-29 17:56:39,050+0200 ERROR (check/loop) [storage.monitor]
Error checking path
/rhev/data-center/mnt/glusterSD/onode1.example.org:_data/de5f4123-0fac-4238-abcf-a329c142bd47/dom_md/metadata
(monitor:511)
2022-05-29 17:56:39,711+0200 ERROR (check/loop) [storage.monitor]
Error checking path
/rhev/data-center/mnt/glusterSD/onode1.example.org:_vmstore/3cf83851-1cc8-4f97-8960-08a60b9e25db/dom_md/metadata
(monitor:511)
You need to find what is the issue with your Gluster storage.
I hope that Ritesh can help debug the issue with Gluster.
Nir
9:04 p.m.
New subject: storage high latency, sanlock errors, cluster instability
Am 29.05.22 um 19:24 schrieb Nir Soffer:
On Sun, May 29, 2022 at 7:50 PM Jonathan
Baecker<jonbae77(a)gmail.com> wrote:
> Hello everybody,
>
> we run a 3 node self hosted cluster with GlusterFS. I had a lot of problem upgrading
ovirt from 4.4.10 to 4.5.0.2 and now we have cluster instability.
>
> First I will write down the problems I had with upgrading, so you get a bigger
picture:
>
> engine update when fine
> But nodes I could not update because of wrong version of imgbase, so I did a manual
update to 4.5.0.1 and later to 4.5.0.2. First time after updating it was still booting
into 4.4.10, so I did a reinstall.
> Then after second reboot I ended up in the emergency mode. After a long searching I
figure out that lvm.conf using use_devicesfile now but there it uses the wrong filters. So
I comment out this and add the old filters back. This procedure I have done on all 3
nodes.
When use_devicesfile (default in 4.5) is enabled, lvm filter is not
used. During installation
the old lvm filter is removed.
Can you share more info on why it does not work for you?
The problem was, that the
node could not mount the gluster volumes
anymore and ended up in emergency mode.
- output of lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 1.8T 0 disk
`-XA1920LE10063_HKS028AV 253:0 0 1.8T 0 mpath
|-gluster_vg_sda-gluster_thinpool_gluster_vg_sda_tmeta 253:16
0 9G 0 lvm
| `-gluster_vg_sda-gluster_thinpool_gluster_vg_sda-tpool 253:18
0 1.7T 0 lvm
| |-gluster_vg_sda-gluster_thinpool_gluster_vg_sda 253:19 0
1.7T 1 lvm
| |-gluster_vg_sda-gluster_lv_data 253:20 0 100G 0 lvm
/gluster_bricks/data
| `-gluster_vg_sda-gluster_lv_vmstore 253:21 0 1.6T 0
lvm /gluster_bricks/vmstore
`-gluster_vg_sda-gluster_thinpool_gluster_vg_sda_tdata 253:17
0 1.7T 0 lvm
`-gluster_vg_sda-gluster_thinpool_gluster_vg_sda-tpool 253:18
0 1.7T 0 lvm
|-gluster_vg_sda-gluster_thinpool_gluster_vg_sda 253:19 0
1.7T 1 lvm
|-gluster_vg_sda-gluster_lv_data 253:20 0 100G 0 lvm
/gluster_bricks/data
`-gluster_vg_sda-gluster_lv_vmstore 253:21 0 1.6T 0
lvm /gluster_bricks/vmstore
sr0 11:0 1 1024M 0 rom
nvme0n1 259:0 0 238.5G 0 disk
|-nvme0n1p1 259:1 0 1G 0 part /boot
|-nvme0n1p2 259:2 0 134G 0 part
| |-onn-pool00_tmeta 253:1 0 1G 0 lvm
| | `-onn-pool00-tpool 253:3 0 87G 0 lvm
| | |-onn-ovirt--node--ng--4.5.0.2--0.20220513.0+1 253:4 0
50G 0 lvm /
| | |-onn-pool00 253:7 0 87G 1 lvm
| | |-onn-home 253:8 0 1G 0 lvm /home
| | |-onn-tmp 253:9 0 1G 0 lvm /tmp
| | |-onn-var 253:10 0 15G 0 lvm /var
| | |-onn-var_crash 253:11 0 10G 0 lvm /var/crash
| | |-onn-var_log 253:12 0 8G 0 lvm /var/log
| | |-onn-var_log_audit 253:13 0 2G 0 lvm /var/log/audit
| | |-onn-ovirt--node--ng--4.5.0.1--0.20220511.0+1 253:14 0
50G 0 lvm
| | `-onn-var_tmp 253:15 0 10G 0 lvm /var/tmp
| |-onn-pool00_tdata 253:2 0 87G 0 lvm
| | `-onn-pool00-tpool 253:3 0 87G 0 lvm
| | |-onn-ovirt--node--ng--4.5.0.2--0.20220513.0+1 253:4 0
50G 0 lvm /
| | |-onn-pool00 253:7 0 87G 1 lvm
| | |-onn-home 253:8 0 1G 0 lvm /home
| | |-onn-tmp 253:9 0 1G 0 lvm /tmp
| | |-onn-var 253:10 0 15G 0 lvm /var
| | |-onn-var_crash 253:11 0 10G 0 lvm /var/crash
| | |-onn-var_log 253:12 0 8G 0 lvm /var/log
| | |-onn-var_log_audit 253:13 0 2G 0 lvm /var/log/audit
| | |-onn-ovirt--node--ng--4.5.0.1--0.20220511.0+1 253:14 0
50G 0 lvm
| | `-onn-var_tmp 253:15 0 10G 0 lvm /var/tmp
| `-onn-swap 253:5 0 20G 0 lvm [SWAP]
`-nvme0n1p3 259:3 0 95G 0 part
`-gluster_vg_nvme0n1p3-gluster_lv_engine 253:6 0 94G 0
lvm /gluster_bricks/engine
- The old lvm filter used, and why it was needed
filter =
["a|^/dev/disk/by-id/lvm-pv-uuid-Nn7tZl-TFdY-BujO-VZG5-EaGW-5YFd-Lo5pwa$|",
"a|^/dev/disk/by-id/lvm-pv-uuid-Wcbxnx-2RhC-s1Re-s148-nLj9-Tr3f-jj4VvE$|",
"a|^/dev/disk/by-id/lvm-pv-uuid-lX51wm-H7V4-3CTn-qYob-Rkpx-Tptd-t94jNL$|",
"r|.*|"]
I don't remember exactly any more why it was needed, but without the
node was not working correctly. I think I even used vdsm-tool
config-lvm-filter.
- output of vdsm-tool config-lvm-filter
Analyzing host...
Found these mounted logical volumes on this host:
logical volume: /dev/mapper/gluster_vg_nvme0n1p3-gluster_lv_engine
mountpoint: /gluster_bricks/engine
devices: /dev/nvme0n1p3
logical volume: /dev/mapper/gluster_vg_sda-gluster_lv_data
mountpoint: /gluster_bricks/data
devices: /dev/mapper/XA1920LE10063_HKS028AV
logical volume: /dev/mapper/gluster_vg_sda-gluster_lv_vmstore
mountpoint: /gluster_bricks/vmstore
devices: /dev/mapper/XA1920LE10063_HKS028AV
logical volume: /dev/mapper/onn-home
mountpoint: /home
devices: /dev/nvme0n1p2
logical volume:
/dev/mapper/onn-ovirt--node--ng--4.5.0.2--0.20220513.0+1
mountpoint: /
devices: /dev/nvme0n1p2
logical volume: /dev/mapper/onn-swap
mountpoint: [SWAP]
devices: /dev/nvme0n1p2
logical volume: /dev/mapper/onn-tmp
mountpoint: /tmp
devices: /dev/nvme0n1p2
logical volume: /dev/mapper/onn-var
mountpoint: /var
devices: /dev/nvme0n1p2
logical volume: /dev/mapper/onn-var_crash
mountpoint: /var/crash
devices: /dev/nvme0n1p2
logical volume: /dev/mapper/onn-var_log
mountpoint: /var/log
devices: /dev/nvme0n1p2
logical volume: /dev/mapper/onn-var_log_audit
mountpoint: /var/log/audit
devices: /dev/nvme0n1p2
logical volume: /dev/mapper/onn-var_tmp
mountpoint: /var/tmp
devices: /dev/nvme0n1p2
Configuring LVM system.devices.
Devices for following VGs will be imported:
gluster_vg_sda, gluster_vg_nvme0n1p3, onn
To properly configure the host, we need to add multipath
blacklist in /etc/multipath/conf.d/vdsm_blacklist.conf:
blacklist {
wwid "eui.0025388901b1e26f"
}
Configure host? [yes,NO]
If using lvm devices does not work for you, you can enable the lvm
filter in vdsm configuration
by adding a drop-in file:
$ cat /etc/vdsm/vdsm.conf.d/99-local.conf
[lvm]
config_method = filter
And run:
vdsm-tool config-lvm-filter
to configure the lvm filter in the best way for vdsm. If this does not create
the right filter we would like to know why, but in general you should use
lvm devices since it avoids the trouble of maintaining the filter and dealing
with upgrades and user edited lvm filter.
If you disable use_devicesfile, the next vdsm upgrade will enable it
back unless
you change the configuration.
I would be happy to just use the default, when there
is a way to make
use_devicesfile to wok.
Also even if you disable use_devicesfile in lvm.conf, vdsm still use
--devices instead
of filter when running lvm commands, and lvm commands run by vdsm ignore your
lvm filter since the --devices option overrides the system settings.
...
> I notice some unsync volume warning, but because I had this in the past to, after
upgrading, I though after some time they will disappear. The next day there still where
there, so I decided to put the nodes again in the maintenance mode and restart the
glusterd service. After some time the sync warnings where gone.
Not clear what these warnings are, I guess Gluster warning?
Yes was Gluster
warnings under Storage -> Volumes it was saying that
some entries are unsync.
> So now the actual problem:
>
> Since this time the cluster is unstable. I get different errors and warning, like:
>
> VM [name] is not responding
> out of nothing HA VM gets migrated
> VM migration can fail
> VM backup with snapshoting and export take very long
How do you backup the vms? do you sue a backup application? how is it
configured?
I use a self made plython script, which uses the rest api. I create a
snapshot from the VM, build a new VM from that snapshot and move the new
one to the export domain.
> VMs are getting very slow some times
> Storage domain vmstore experienced a high latency of 9.14251
> ovs|00001|db_ctl_base|ERR|no key "dpdk-init" in Open_vSwitch record
"." column other_config
> 489279 [1064359]: s8 renewal error -202 delta_length 10 last_success 489249
> 444853 [2243175]: s27 delta_renew read timeout 10 sec offset 0
/rhev/data-center/mnt/glusterSD/onode1.example.org:_vmstore/3cf83851-1cc8-4f97-8960-08a60b9e25db/dom_md/ids
> 471099 [2243175]: s27 delta_renew read timeout 10 sec offset 0
/rhev/data-center/mnt/glusterSD/onode1.example.org:_vmstore/3cf83851-1cc8-4f97-8960-08a60b9e25db/dom_md/ids
> many of: 424035 [2243175]: s27 delta_renew long write time XX sec
All these issues tell use that your storage is not working correctly.
sanlock.log is full of renewal errors form May:
$ grep 2022-05- sanlock.log | wc -l
4844
$ grep 2022-05- sanlock.log | grep 'renewal error' | wc -l
631
But there is lot of trouble from earlier months:
$ grep 2022-04- sanlock.log | wc -l
844
$ grep 2022-04- sanlock.log | grep 'renewal error' | wc -l
29
$ grep 2022-03- sanlock.log | wc -l
1609
$ grep 2022-03- sanlock.log | grep 'renewal error' | wc -l
483
$ grep 2022-02- sanlock.log | wc -l
826
$ grep 2022-02- sanlock.log | grep 'renewal error' | wc -l
242
Here sanlock log looks healthy:
$ grep 2022-01- sanlock.log | wc -l
3
$ grep 2022-01- sanlock.log | grep 'renewal error' | wc -l
0
$ grep 2021-12- sanlock.log | wc -l
48
$ grep 2021-12- sanlock.log | grep 'renewal error' | wc -l
0
vdsm log shows that 2 domains are not accessible:
$ grep ERROR vdsm.log
2022-05-29 15:07:19,048+0200 ERROR (check/loop) [storage.monitor]
Error checking path
/rhev/data-center/mnt/glusterSD/onode1.example.org:_data/de5f4123-0fac-4238-abcf-a329c142bd47/dom_md/metadata
(monitor:511)
2022-05-29 16:33:59,049+0200 ERROR (check/loop) [storage.monitor]
Error checking path
/rhev/data-center/mnt/glusterSD/onode1.example.org:_data/de5f4123-0fac-4238-abcf-a329c142bd47/dom_md/metadata
(monitor:511)
2022-05-29 16:34:39,049+0200 ERROR (check/loop) [storage.monitor]
Error checking path
/rhev/data-center/mnt/glusterSD/onode1.example.org:_data/de5f4123-0fac-4238-abcf-a329c142bd47/dom_md/metadata
(monitor:511)
2022-05-29 17:21:39,050+0200 ERROR (check/loop) [storage.monitor]
Error checking path
/rhev/data-center/mnt/glusterSD/onode1.example.org:_data/de5f4123-0fac-4238-abcf-a329c142bd47/dom_md/metadata
(monitor:511)
2022-05-29 17:55:59,712+0200 ERROR (check/loop) [storage.monitor]
Error checking path
/rhev/data-center/mnt/glusterSD/onode1.example.org:_vmstore/3cf83851-1cc8-4f97-8960-08a60b9e25db/dom_md/metadata
(monitor:511)
2022-05-29 17:56:19,711+0200 ERROR (check/loop) [storage.monitor]
Error checking path
/rhev/data-center/mnt/glusterSD/onode1.example.org:_vmstore/3cf83851-1cc8-4f97-8960-08a60b9e25db/dom_md/metadata
(monitor:511)
2022-05-29 17:56:39,050+0200 ERROR (check/loop) [storage.monitor]
Error checking path
/rhev/data-center/mnt/glusterSD/onode1.example.org:_data/de5f4123-0fac-4238-abcf-a329c142bd47/dom_md/metadata
(monitor:511)
2022-05-29 17:56:39,711+0200 ERROR (check/loop) [storage.monitor]
Error checking path
/rhev/data-center/mnt/glusterSD/onode1.example.org:_vmstore/3cf83851-1cc8-4f97-8960-08a60b9e25db/dom_md/metadata
(monitor:511)
You need to find what is the issue with your Gluster storage.
I hope that Ritesh can help debug the issue with Gluster.
Nir
I'm worry that I do something, that it makes it even more worst, and I
hove not idea what's the problem. To me it looks not exactly like a
problem with data inconsistencies.
Jonathan
717
days inactive
717
days old
2 comments
2 participants
participants (2)
-
Jonathan Baecker -
Nir Soffer