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RHEL6 New vSWAP System #389

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
Reason: Because with the new kernels of RHEL6, they's a lot of improvement and 
changes of the use of VM & vzctl.

Description:
Just take a look at http://openvz.livejournal.com/

I think it's really important that's this mod should be developped in High 
Priority.

Thanks

Original issue reported on code.google.com by scr4tchy...@gmail.com on 7 Jan 2012 at 12:13

GoogleCodeExporter commented 9 years ago 
Nice. Please include in next version.

Original comment by cod...@iscgr.de on 8 Jan 2012 at 12:42

GoogleCodeExporter commented 9 years ago 
Issue 390 has been merged into this issue.

Original comment by sibprogrammer on 30 Jan 2012 at 2:52

GoogleCodeExporter commented 9 years ago 
physpages parameter doesn't changed when editing VM config values at RHEL6 
based openvz.

Original comment by anton.ka...@gmail.com on 19 Feb 2012 at 11:54

GoogleCodeExporter commented 9 years ago

Original comment by sibprogrammer on 13 Mar 2012 at 12:53

GoogleCodeExporter commented 9 years ago 
has this already been included in the source by any chance ?

Original comment by norm...@gmail.com on 24 Mar 2012 at 11:28

GoogleCodeExporter commented 9 years ago 
I guess there should be some autodetection of vzctl version... To keep 
compatibility with systems where is no vSwap. Or maybe the configuration of 
containers will not interferre as SWAPSPACE will only show fake swap in 
containers on older hosts... I am not sure about memory... Maybe it remains 
same...

Original comment by Harvi...@gmail.com on 28 May 2012 at 2:10

GoogleCodeExporter commented 9 years ago 
Anyway... this started to be real spliner in ass for me after upgrade as i 
can't let anybody to change memory using ovz-web-panel as it would screw up the 
vSwap settings... :(

Original comment by Harvi...@gmail.com on 3 Jun 2012 at 2:07

GoogleCodeExporter commented 9 years ago 
A couple of helpful hints

(1) Hardware node supports vswap if /proc/vz/vswap file exists.
(2) CT config is considered vswap-enabled, if physpages.limit is NOT set to 
unlimited.
(3) Newer vzlist (as of today's git, will be available in vzctl-3.4) have a new 
vswap field which shows yes (CT config is vswap-enabled) or no (config is old 
fashioned UBC config) for a container.
(4) In vswap mode, one can still use other beancounters, they just become 
optional. The only non-optional ones are PHYSPAGES (aka --ram) and SWAPPAGES 
(aka --swap).

Original comment by kolysh...@gmail.com on 13 Jun 2012 at 6:38

GoogleCodeExporter commented 9 years ago 
Hello,

I made a tiny patch to support modifying RAM setting on a vswap enabled VE
I started to put some SWAP support but it requires more work on the API part.

It now shows correctly the RAM assigned to the VE, in VE listing, and let you 
change it without messing up your vswap config.

-O.

Original comment by oliver.m...@gmail.com on 20 Jun 2012 at 12:55

Attachments:

GoogleCodeExporter commented 9 years ago 
Oliver: thx for your effort. I've tried your patch with OWP 2.1, but it seems 
to behave bit strange...

I've got following container:

# RAM
PHYSPAGES="0:512M"
# Swap
SWAPPAGES="0:1G"

And panel now says it's 2 MB Ram and unlimited swap...

Original comment by Harvi...@gmail.com on 18 Aug 2012 at 4:30

GoogleCodeExporter commented 9 years ago 
(before patch it said that it's unlimited ram and did't known what swap is)

Original comment by Harvi...@gmail.com on 18 Aug 2012 at 4:39

GoogleCodeExporter commented 9 years ago 
Issue 127 has been merged into this issue.

Original comment by sibprogrammer on 2 Feb 2013 at 9:46

GoogleCodeExporter commented 9 years ago

Original comment by sibprogrammer on 2 Feb 2013 at 9:46

GoogleCodeExporter commented 9 years ago 
Support for vSwap was added. See 
https://github.com/sibprogrammer/owp/commit/2bb1f15c58cd860e7ae38d016b2f430c2152
2406

Original comment by sibprogrammer on 2 Feb 2013 at 9:50

GoogleCodeExporter commented 9 years ago 
Awesome!!! Thank you very much :-)

There's only single thing that i like to change...
If i specify size (doesn't matter if swap, ram or disk) in config as eg.: 
5G:5.5G
Web panel shows it to mi in MB, but when i save it it's in Bytes which is quite 
annoying as it prevents humans from reading/editing the config manualy.

And this is why i think that your panel is the best of all OpenVZ panels - 
because i can decide if i want to use SSH or Web (so helpdesk staff can edit 
settings while i can still use native configuration in critical situations).

Original comment by Harvi...@gmail.com on 2 Feb 2013 at 5:09