Re: libgfapi failover problem on replica bricks

[Pranith Kumar Karampuri <pkarampu@xxxxxxxxxx>]

On 09/01/2014 12:08 PM, Roman wrote:

Well, as for me, VM-s are not very impacted by healing process. At least the munin server running with pretty high load (average rarely goes below 0,9 :) )had no problems. To create some more load I've made a copy of 590 MB file on the VM-s disk, It took 22 seconds. Which is ca 27 MB /sec or 214 Mbps/sec

Servers are connected via 10 gbit network. Proxmox client is connected to the server with separate 1 gbps interface. We are thinking of moving it to 10gbps also.

Here are some heal info which is pretty confusing.

right after 1st server restored it connection, it was pretty clear:

root@stor1:~# gluster volume heal HA-2TB-TT-Proxmox-cluster info

Brick stor1:/exports/HA-2TB-TT-Proxmox-cluster/2TB/

/images/124/vm-124-disk-1.qcow2 - Possibly undergoing heal

Number of entries: 1

Brick stor2:/exports/HA-2TB-TT-Proxmox-cluster/2TB/

/images/124/vm-124-disk-1.qcow2 - Possibly undergoing heal

/images/112/vm-112-disk-1.raw - Possibly undergoing heal

Number of entries: 2

some time later is says 

root@stor1:~# gluster volume heal HA-2TB-TT-Proxmox-cluster info

Brick stor1:/exports/HA-2TB-TT-Proxmox-cluster/2TB/

Number of entries: 0

Brick stor2:/exports/HA-2TB-TT-Proxmox-cluster/2TB/

Number of entries: 0

while I can still see traffic between servers and still there was no messages about healing process completion.

On which machine do we have the mount?

Pranith

2014-08-29 10:02 GMT+03:00 Pranith Kumar Karampuri <pkarampu@xxxxxxxxxx>:

Wow, this is great news! Thanks a lot for sharing the results :-). Did you get a chance to test the performance of the applications in the vm during self-heal?
May I know more about your use case? i.e. How many vms and what is the avg size of each vm etc?

Pranith

On 08/28/2014 11:27 PM, Roman wrote:

Here are the results.

1. still have problem with logs rotation. logs are being written to .log.1 file, not .log file. any hints, how to fix?

2. healing logs are now much more better, I can see the successful message.

3. both volumes with HD off and on successfully synced. the volume with HD on synced much more faster.

4. both VMs on volumes survived the outage, when new files were added  and deleted during outage.

So replication works well with both HD on and off for volumes for VM-s. With HD even faster. Need to solve the logging issue.

Seems we could start production storage from this moment :) The whole company will use it. Some distributed and some replicated. Thanks for great product.

2014-08-27 16:03 GMT+03:00 Roman <romeo.r@xxxxxxxxx>:

Installed new packages. Will make some tests tomorrow. thanx.

2014-08-27 14:10 GMT+03:00 Pranith Kumar Karampuri <pkarampu@xxxxxxxxxx>:

On 08/27/2014 04:38 PM, Kaleb KEITHLEY wrote:

On 08/27/2014 03:09 AM, Humble Chirammal wrote:

----- Original Message -----
| From: "Pranith Kumar Karampuri" <pkarampu@xxxxxxxxxx>
| To: "Humble Chirammal" <hchiramm@xxxxxxxxxx>
| Cc: "Roman" <romeo.r@xxxxxxxxx>, gluster-users@xxxxxxxxxxx, "Niels de Vos" <ndevos@xxxxxxxxxx>
| Sent: Wednesday, August 27, 2014 12:34:22 PM
| Subject: Re: libgfapi failover problem on replica bricks
|
|
| On 08/27/2014 12:24 PM, Roman wrote:
| > root@stor1:~# ls -l /usr/sbin/glfsheal
| > ls: cannot access /usr/sbin/glfsheal: No such file or directory
| > Seems like not.
| Humble,
|       Seems like the binary is still not packaged?

Checking with Kaleb on this.

...

| >>>             |
| >>>             | Humble/Niels,
| >>>             |      Do we have debs available for 3.5.2? In 3.5.1
| >>>             there was packaging
| >>>             | issue where /usr/bin/glfsheal is not packaged along
| >>>             with the deb. I
| >>>             | think that should be fixed now as well?
| >>>             |
| >>>             Pranith,
| >>>
| >>>             The 3.5.2 packages for debian is not available yet. We
| >>>             are co-ordinating internally to get it processed.
| >>>             I will update the list once its available.
| >>>
| >>>             --Humble

glfsheal isn't in our 3.5.2-1 DPKGs either. We (meaning I) started with the 3.5.1 packaging bits from Semiosis. Perhaps he fixed 3.5.1 after giving me his bits.

I'll fix it and spin 3.5.2-2 DPKGs.

That is great Kaleb. Please notify semiosis as well in case he is yet to fix it.

Pranith

--

Kaleb

--
Best regards,
Roman.

--
Best regards,
Roman.

--
Best regards,
Roman.

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