| --- | Log | opened Thu Nov 18 00:00:22 2010 |
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| 04:12 | <Charly> | ehlo |
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| 10:49 | <daniel76> | Hello.I've got a litte question to xc_readconsolering (lixbc -> XEN_SYSCTL_readconsole) . If i call the function once with clear=1 and incremental =0 i get the whole console ringbuffer. If i call the function for a second time i get no output even if there are new entries in the ringbuffer (i produced them with $> xm debug h) .Is this a normal behavoir and if yes why or am i missing something ?. |
| 10:51 | <deshantm> | daniel76: this type of question is better for the xen-devel mailing list |
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| 10:51 | <deshantm> | or perhaps try ##xen on freenode |
| 10:51 | <deshantm> | this channel is not as active as the mailing list or the freenode channel |
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| 10:59 | <daniel76> | deshantm : thanks |
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| 11:45 | <Krobar> | hello |
| 11:46 | <Krobar> | Was wondering if anyone might be able to help me with multiple bridges on Centos with Xen 3.31. |
| 12:09 | <deshantm> | hi Krobar |
| 12:09 | <Krobar> | hi |
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| 12:09 | <deshantm> | there is some info on xen wiki, have you found that yet? |
| 12:09 | <Krobar> | yep |
| 12:10 | <Krobar> | I cant work out if I'm meant to be using the 3.0 example or the debian example |
| 12:10 | <Krobar> | Currently I have two server pairs linked by DRBD. This works OK but networking is different on both |
| 12:11 | <Krobar> | One references the bridge in ifcfg whilst the other seems to call the xen script multiple times to setup the bridge |
| 12:11 | <Krobar> | The script one relabels ethX to pethx |
| 12:12 | <Krobar> | Unsurprisingly live transfer doesnt work |
| 12:12 | <deshantm> | ah, so the bridges function, but you can't live migrate your double connected VM? |
| 12:13 | <Krobar> | yes |
| 12:14 | <Krobar> | I want to make both machines the same but am not sure which is the correct method |
| 12:14 | <Krobar> | Each machine has seperate nics for Dom0 networking so bridge nics are dedicated |
| 12:15 | <Krobar> | Is the scripted method best? The one using this looks like the Xen 3.0 wiki example |
| 12:16 | <Krobar> | What is the difference between vif= and netdev=? Is netdev Debian specific? |
| 12:16 | <deshantm> | Krobar: I've had quite a few recent discussion on xen network scripts actually (over on ##xen on freenode) |
| 12:16 | <deshantm> | most people are recommending to not use the xen network scripts |
| 12:17 | <Krobar> | Ok, does that stop live migration? |
| 12:17 | <deshantm> | but to use the brctl tools more directly. I also like to recommend Open vSwitch |
| 12:17 | <deshantm> | I don't have good experience with the specific case you are working on |
| 12:18 | <deshantm> | you might want to post to the xen-users mailing list and even try ##xen on freenode, it is typically more active than this channel |
| 12:18 | <Krobar> | OK, I'll need to dig up my password for freenode |
| 12:18 | <deshantm> | Open vSwitch is used in XCP and XenServer |
| 12:18 | <Krobar> | OK so I dont think I will have that installed |
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| 12:19 | <Krobar> | I also heard the redhat network bridge cript is different to the standard one |
| 12:19 | <deshantm> | Krobar: just trying to give a high level sense of some things. I don't know that I have the time at the moment to help in much more detail |
| 12:19 | <deshantm> | Krobar: most likely redhat had some patches on it, especially for things like libvirt support |
| 12:20 | <deshantm> | some might have made it back in, others maybe not |
| 12:20 | <Krobar> | np, I think maybe a xen-users post might help. I just seem to have fragments of info from everywhere but cant find a relevant overview |
| 12:20 | <deshantm> | but I guess the xen network scripts may be deprecated in 4.1 |
| 12:20 | <Krobar> | gone entirely? |
| 12:20 | <deshantm> | pasik over on ##xen was explaining it |
| 12:21 | <deshantm> | well, probably not right away or anything |
| 12:21 | <deshantm> | but things are moving away from the xend backend |
| 12:21 | <deshantm> | to libxl |
| 12:21 | <deshantm> | and the xl command |
| 12:21 | <deshantm> | there is still long term support for various xen things |
| 12:21 | <Krobar> | That would at least help standardise although I had problems getting the Xen 4.01 RPMs to work with Centos, I think RHEL stopping development causes issues |
| 12:21 | <deshantm> | so it's going away anytime soon |
| 12:22 | <deshantm> | there is a lot of work/usage of Xen on CentOS/RHEL from the community |
| 12:22 | <deshantm> | did you notice the howto that Pasi just posted on the xen wiki about it? |
| 12:23 | <Krobar> | I plan to upgrade these servers to 4.01 in about month if I can get a stable test system running |
| 12:23 | <deshantm> | http://wiki.xensource.com/xenwiki/RHEL6Xen4Tutorial |
| 12:23 | <Krobar> | For kernel compile? |
| 12:24 | <deshantm> | Krobar: are you aware of XCP? |
| 12:25 | <Krobar> | yes but I have not used this kernel variant yet |
| 12:26 | <Krobar> | It is a further integrated kernel from the little but I've read about it, 2.6.27 and 2.6.32? |
| 12:26 | <deshantm> | XCP has a 1.0 coming out soon |
| 12:26 | <Krobar> | (I'm still stuck on 2.6.18) |
| 12:27 | <Krobar> | Oh, is that the opensource version of XenServer? |
| 12:27 | <deshantm> | yeah, I believe those are the two so far 0.5 was based on opensuse forward port I believe |
| 12:27 | <deshantm> | yes XCP is open source of XenServer |
| 12:27 | <Krobar> | I didnt get on with that because I need Infiniband, SDP an DRBD support |
| 12:28 | <Krobar> | Never uses Suse which is why it probably seemed a bit alien |
| 12:28 | <Krobar> | (I think I tried a much earlier version, 0.1 maybe |
| 12:28 | <deshantm> | XCP is going to be to XenServer as Fedora is to RHEL |
| 12:29 | <deshantm> | so the "CentOS" will be the open source version that makes up XenServer |
| 12:29 | <deshantm> | it isn't based on Suse |
| 12:29 | <Krobar> | So development will go forward with Suse as the primary platform? I though Xenserver was RHEL based? |
| 12:29 | <deshantm> | XCP is built on CentOS |
| 12:30 | <deshantm> | i just mentioned suse because of the kernel work that they did |
| 12:30 | <deshantm> | not suse the distro |
| 12:30 | <Krobar> | So I should be able to build DRBD and OFED/Inifniband for it...... Maybe I should go with that in future |
| 12:30 | <deshantm> | Krobar: I think that is where things are headed |
| 12:30 | <deshantm> | yes |
| 12:31 | <deshantm> | #xen-api on freenode or the xen-api mailing list to help out with things like that |
| 12:31 | <deshantm> | there may be other working on it and/or wanting support, etc. |
| 12:32 | <deshantm> | gotta run for now |
| 12:32 | <Krobar> | thanks Todd |
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| 14:29 | <Charly> | have a good night |
| 14:29 | <deshantm> | night Charly |
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| 21:09 | <wanchin> | Hi |
| 21:09 | <wanchin> | Anyone here ever get iptables working on a centos dirtribution running on a xen server? |
| 21:18 | <deshantm> | wanchin: what seems to be the problem? |
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| --- | Log | closed Fri Nov 19 00:00:24 2010 |
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