Re: KVM on a Cluster?
Hi, Yes, this is perfectly possible. I'm just finalizing a book on how to do that trick with Xen machines. But from cluster perspective, it absolutely doesn't matter which machine type to use. Look for the following: openais + pacemaker HA clustering shared storage on a SAN, based on OCFS2 so that it is accessible by multiple nodes simultaneously enough RAM in all the host machines HTH, Sander On Wed, 2010-02-10 at 11:09 -0800, Mat wrote: > Hello, > > The cluster stack found in the wiki[1] looks very promising and I'm > looking forward to testing it out. One thing I've been thinking about > lately and looking for online is the possibility of running a virtual > machine with KVM on top of a cluster. > > Is it possible, or even practical to run an application like KVM on a > cluster? The reason driving me to think about this would be hardware > redundancy, and the ability to make "live" backups of a virtual machine > by isolating it from the others (a script that temporarily disables the > network?) and shutting it down for a snapshot. > > Unfortunately, I have very little practical knowledge and experience > when it comes to clusters, so please feel free to enlighten me if I'm > proposing something crazy. > > [1] https://wiki.ubuntu.com/ClusterStack/LucidTesting > > Thanks. > matoc > -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
KVM on a Cluster?
Hello, The cluster stack found in the wiki[1] looks very promising and I'm looking forward to testing it out. One thing I've been thinking about lately and looking for online is the possibility of running a virtual machine with KVM on top of a cluster. Is it possible, or even practical to run an application like KVM on a cluster? The reason driving me to think about this would be hardware redundancy, and the ability to make "live" backups of a virtual machine by isolating it from the others (a script that temporarily disables the network?) and shutting it down for a snapshot. Unfortunately, I have very little practical knowledge and experience when it comes to clusters, so please feel free to enlighten me if I'm proposing something crazy. [1] https://wiki.ubuntu.com/ClusterStack/LucidTesting Thanks. matoc -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: RFC: redhat-cluster-suite demotion to universe
Hi Ante, On Wed, Feb 10, 2010 at 06:03:10PM +0100, Ante Karamatić wrote: > On 10.02.2010 17:26, Mathias Gug wrote: > > >If I understand correctly the following rhcs binary packages (GFS + > >DLM) should be kept in main for the new cluster stack: > > This looks OK, but please wait till I create new rhcs packages with > different package deps. gfs-tools is removed upstream, so I removed > it from packages too. > Please make sure that only the bits relevant to main are in binary packages so that most of the other packages can be demoted to universe. Also note that main promotion can be done *after* Feature Freeze. It seems that the critical point here is to have all the new packages in universe by Feature Freeze. -- Mathias Gug Ubuntu Developer http://www.ubuntu.com -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: dmidecode
On 02/10/2010 10:02 AM, Kaushal Shriyan wrote: > I was interested in "How much Max Memory my san Box running Ubuntu > Server 8.04 supports" using dmidecode ? is that possible to find out > without consulting the manufacturer ? I use a tool called memconf which gives this information. You can get memconf from http://www.4schmidts.com/unix.html It gives output like this: hostname: manhack Hewlett-Packard HP Z600 Workstation (2 X Intel(R) Xeon(R) E5520 @ 2.27GHz) Memory Error Correction: Multi-bit ECC Maximum Memory: 24576MB (24GB) CPU0 DIMM1: 2048MB 1333MHz (0.8ns) Synchronous DIMM, Hynix Semiconductor (Hyundai Electronics) HMT125U7AFP8C-H9 CPU0 DIMM2: 2048MB 1333MHz (0.8ns) Synchronous DIMM, Hynix Semiconductor (Hyundai Electronics) HMT125U7AFP8C-H9 CPU0 DIMM3: 2048MB 1333MHz (0.8ns) Synchronous DIMM, Hynix Semiconductor (Hyundai Electronics) HMT125U7AFP8C-H9 CPU1 DIMM1: 2048MB 1333MHz (0.8ns) Synchronous DIMM, Hynix Semiconductor (Hyundai Electronics) HMT125U7AFP8C-H9 CPU1 DIMM2: 2048MB 1333MHz (0.8ns) Synchronous DIMM, Hynix Semiconductor (Hyundai Electronics) HMT125U7AFP8C-H9 CPU1 DIMM3: 2048MB 1333MHz (0.8ns) Synchronous DIMM, Hynix Semiconductor (Hyundai Electronics) HMT125U7AFP8C-H9 empty memory sockets: None total memory = 12288MB (12GB) It also has a verbose mode which gives basic OS info (distro, arch, kernel). It puts all relevant information I typically need in one easily human digestable format, so I hardly use other utilities anymore. I've used it on Solaris and Linux for a long time. Not entirely sure how it gets this information, but it's written in perl, so you should be able to dig out it's methodology. It appears to be using dmidecode though, so if you still wanted just plain dmidecode, it appears you probably can do that. -- /* Wes Hardin */ -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: RFC: redhat-cluster-suite demotion to universe
Hi Ante, 2010/2/7 Ante Karamatić : > On 07.02.2010 19:01, Mathias Gug wrote: > >> I had a discussion with Fabio, the upstream redhat-cluster-suite >> maintainer, and it seems that the stack corosync+openais+pacemaker is >> not feature equivalent with the current redhat-cluster-suite. > > Btw, pacemaker supports GFS2 and with RHCS 3.0.7 one can create and > mount GFS2 file systems. If I understand correctly the following rhcs binary packages (GFS + DLM) should be kept in main for the new cluster stack: gfs-tools global file system tools gfs2-tools global file system 2 tools (EXPERIMENTAL) libdlm-dev distributed lock manager - development files libdlm3 distributed lock manager - library libdlmcontrol-dev distributed lock manager - development files libdlmcontrol3 distributed lock manager - library All the other ones can be dropped to universe: cman cluster manager libccs-dev cluster manager - development files libccs-perl Perl module for using the libccs2 library libccs3 cluster configuration - libraries libcman-dev cluster manager - development files libcman3 cluster manager - libraries libfence-dev fenced - development files libfence4 fence client - library liblogthread-dev cluster logging - development files liblogthread3 cluster logging - libraries redhat-cluster-source Red Hat cluster suite - kernel module source redhat-cluster-suite Red Hat cluster suite (metapackage) rgmanager clustered resource group manager -- Mathias Gug Ubuntu Developer http://www.ubuntu.com -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: dmidecode
On Wed, Feb 10, 2010 at 6:53 PM, Kaushal Shriyan wrote: > On Wed, Feb 10, 2010 at 6:35 PM, Aurélien Naldi > wrote: Hi, depending on the ubuntu version, it may be called -server or -pae BTW, if you are running a 64bit install, it should just work with the default kernel (AFAIK). I'm not familiar with dmidecode output, but it is supposed to be about hardware capabilities, not software ones. Are you sure this is the global limit of the system and not the capacity of a single memory slot ? >>> >>> free -m >>> total used free shared buffers cached >>> Mem: 8001 7955 45 0 0 7812 >>> -/+ buffers/cache: 143 7857 >>> Swap: 4761 42 4719 >>> >>> Please suggest. >> >> Not much to add, you have 8GB of memory in the system, just as you should :) >> >> -- >> Aurélien Naldi >> > Hi, > > I was interested in "How much Max Memory my san Box supports" using > dmidecode ? is that possible to find out. > > Thanks, > > Kaushal > Hi Again Any updates for my query to this mailing list ? I was interested in "How much Max Memory my san Box running Ubuntu Server 8.04 supports" using dmidecode ? is that possible to find out without consulting the manufacturer ? Thanks and Regards Kaushal -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: PHP 5.3 for Lucid
The only thing that resembles a release schedule that I have ever found is on wikipedia http://en.wikipedia.org/wiki/PHP#Release_history from that info 5.2.0 and bellow are no longer supported and upstream has not yet set a date for PHP 6.0 Cheers, E On Tue, Feb 9, 2010 at 2:23 PM, Adam Conrad wrote: > On Tue, Feb 09, 2010 at 04:58:35PM -0500, Mathias Gug wrote: >> >> Do you have reference/link to where upstream states the support >> lifetime of 5.3? > > Unless thing have changed since I was working on it, upstream never > makes formal lifecycle commitments, but my experience from years of > working on PHP in Debian, Ubuntu, and upstream is that significantly > less effort goes into backporting and maintaining old branches after > the current one is considered mature and widely-deployed. > > One can't say for sure how long 5.3.x will survive upstream before they > release a 5.4 (or 6.0), but given the focus on 6.x, I would expect 5.3 > to survive a few years, at least. Either way, it's going to live on > with upstream support much longer than 5.2 will. > > ... Adam > > -- > ubuntu-server mailing list > ubuntu-server@lists.ubuntu.com > https://lists.ubuntu.com/mailman/listinfo/ubuntu-server > More info: https://wiki.ubuntu.com/ServerTeam > -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: [Ubuntu-ha] Call for testing: cluster solutions for Ubuntu 10.04
Ante Karamatić wrote: > Pacemaker in ubuntu-ha PPA for Lucid now support both OCFS2 and GFS2. > Give it a try: > > https://wiki.ubuntu.com/ClusterStack/LucidTesting > > ___ > Mailing list: https://launchpad.net/~ubuntu-ha > Post to : ubuntu...@lists.launchpad.net > Unsubscribe : https://launchpad.net/~ubuntu-ha > More help : https://help.launchpad.net/ListHelp Ante, Thank you very much for all that work. I am currently deploying 2 lucid nodes and intend to test. Hopefully will report before end of week. Cheers, -- -- Boris Devouge Sales Engineer Office: +44 (0)20 7630 2476 Canonical Mobile: +44 7809 389 874 GPG FPR: ADB9 0AE9 2451 2BAD B2C7 BB2C DB22 052A 7A37 FC75 -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: PHP 5.3 for Lucid
Kees Cook wrote: > Mathias Gug wrote: >> Right. There are a couple of php packages (drupal, joomla, etc...) >> currently in Lucid that are not working with 5.3. These would have to >> be ported to 5.3 before we release. > > Joomla isn't in Ubuntu, and drupal (universe) should not block php (main). I thought the fridge used drupal. While I generally agree that we shouldn't block a transitoin based on one stubborn package, I'd hope we'd be able to upgrade our shared infrastructure to the next LTS without needing to deploy an entirely new platform. I agree entirely about joomla, but someone ought port drupal prior to release if the transition goes ahead. -- Emmet HIKORY -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: PHP 5.3 for Lucid
On Tue, Feb 09, 2010 at 04:58:35PM -0500, Mathias Gug wrote: > > Do you have reference/link to where upstream states the support > lifetime of 5.3? Unless thing have changed since I was working on it, upstream never makes formal lifecycle commitments, but my experience from years of working on PHP in Debian, Ubuntu, and upstream is that significantly less effort goes into backporting and maintaining old branches after the current one is considered mature and widely-deployed. One can't say for sure how long 5.3.x will survive upstream before they release a 5.4 (or 6.0), but given the focus on 6.x, I would expect 5.3 to survive a few years, at least. Either way, it's going to live on with upstream support much longer than 5.2 will. ... Adam -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: Call for testing: cluster solutions for Ubuntu 10.04
Pacemaker in ubuntu-ha PPA for Lucid now support both OCFS2 and GFS2. Give it a try: https://wiki.ubuntu.com/ClusterStack/LucidTesting -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: dmidecode
On Wed, Feb 10, 2010 at 6:35 PM, Aurélien Naldi wrote: >>> Hi, >>> >>> depending on the ubuntu version, it may be called -server or -pae >>> BTW, if you are running a 64bit install, it should just work with the >>> default kernel (AFAIK). >>> >>> I'm not familiar with dmidecode output, but it is supposed to be about >>> hardware capabilities, not software ones. Are you sure this is the >>> global limit of the system and not the capacity of a single memory >>> slot ? >>> >> >> free -m >> total used free shared buffers cached >> Mem: 8001 7955 45 0 0 7812 >> -/+ buffers/cache: 143 7857 >> Swap: 4761 42 4719 >> >> Please suggest. > > Not much to add, you have 8GB of memory in the system, just as you should :) > > -- > Aurélien Naldi > Hi, I was interested in "How much Max Memory my san Box supports" using dmidecode ? is that possible to find out. Thanks, Kaushal -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: dmidecode
>> Hi, >> >> depending on the ubuntu version, it may be called -server or -pae >> BTW, if you are running a 64bit install, it should just work with the >> default kernel (AFAIK). >> >> I'm not familiar with dmidecode output, but it is supposed to be about >> hardware capabilities, not software ones. Are you sure this is the >> global limit of the system and not the capacity of a single memory >> slot ? >> > > free -m > total used free shared buffers cached > Mem: 8001 7955 45 0 0 7812 > -/+ buffers/cache: 143 7857 > Swap: 4761 42 4719 > > Please suggest. Not much to add, you have 8GB of memory in the system, just as you should :) -- Aurélien Naldi -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: dmidecode
On Wed, Feb 10, 2010 at 6:12 PM, Aurélien Naldi wrote: >> r...@hostii3:~:~# apt-get install linux-image-bigmem >> Reading package lists... Done >> Building dependency tree >> Reading state information... Done >> E: Couldn't find package linux-image-bigmem >> r...@hostii3:~:~# apt-cache search bigmem >> r...@hostii3:~:~# >> >> Please suggest. > > > Hi, > > depending on the ubuntu version, it may be called -server or -pae > BTW, if you are running a 64bit install, it should just work with the > default kernel (AFAIK). > > I'm not familiar with dmidecode output, but it is supposed to be about > hardware capabilities, not software ones. Are you sure this is the > global limit of the system and not the capacity of a single memory > slot ? > free -m total used free sharedbuffers cached Mem: 8001 7955 45 0 0 7812 -/+ buffers/cache:143 7857 Swap: 4761 42 4719 Please suggest. Thanks, Kaushal -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: dmidecode
On Wed, Feb 10, 2010 at 5:34 PM, Tim Slot wrote: > Hi Kaushal, > > try; > > apt-get install linux-image-`uname -r`-bigmem > apt-get install linux-headers-`uname -r`-bigmem > > and reboot from this kernel. > Hi Tom, I did the below suggestion. r...@hostii3:~# apt-get install linux-image-`uname -r`-bigmem Reading package lists... Done Building dependency tree Reading state information... Done E: Couldn't find package linux-image-2.6.24-16-generic-bigmem r...@hostii3:~:~# uname -r 2.6.24-16-generic r...@hostii3:~:~# getconf LONG_BIT 64 r...@hostii3:~:~# apt-get install linux-image-bigmem Reading package lists... Done Building dependency tree Reading state information... Done E: Couldn't find package linux-image-bigmem r...@hostii3:~:~# apt-cache search bigmem r...@hostii3:~:~# Please suggest. Thanks and Regards, Kaushal -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
dmidecode
Hi, i have a issue about Maximum Capacity: 4 GB while running dmidecode,but the actual memory is 8GB on san box. Thanks and Regards, Kaushal -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Opennebula in lucid ?
I see that open nebula is still version 1.2 in lucid, are there plans to include their 1.4 release ? -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
