So is there anyway to make this work today or will I have to wait until this is properly implemented? This may mean I need to take another look at openstack or opennebula and switch back.
On Fri, Feb 15, 2013 at 9:00 AM, Wido den Hollander <w...@widodh.nl> wrote: > On 02/15/2013 02:31 PM, Jason Villalta wrote: >> >> Is there any way easy way to make this setting dependent on the >> storage definition? For example some primary storage may need this >> set to one value such as cache=writeback such as with the case of ZFS, >> GlusterFS, CEPH. Then other storage may want a different setting such >> as cache=writethough or none which is the case with a local ext4 >> storage or NFS. >> > > Exactly. > > I brought this up about a week ago, see this thread: > http://markmail.org/thread/qmrod55gfmhwzot4 > > It shouldn't be a global property, it should be defined per storage pool, or > even better, per disk offering. > > Right now we are talking about the cache setting, but tomorrow it could be a > different setting. > > Wido > > >> >> >> On Thu, Feb 14, 2013 at 11:08 PM, Rajesh Battala >> <rajesh.batt...@citrix.com> wrote: >>> >>> Hi Jason Villalta, >>> In LibvirtVmDef.java, there is DiskDef class , get the cache value from >>> the Global config, while constructing the xml in the override method the >>> class toString() specify the cache value, currently it is using "none". >>> >>> NOTE: whenever there is change in GC value, MS should restart for the >>> value to take effect. >>> >>> Thanks >>> Rajesh Battala >>> >>>> -----Original Message----- >>>> From: Rajesh Battala [mailto:rajesh.batt...@citrix.com] >>>> Sent: Friday, February 15, 2013 9:22 AM >>>> To: cloudstack-us...@incubator.apache.org; cloudstack- >>>> d...@incubator.apache.org >>>> Subject: RE: Change qcow disk cache=none >>>> >>>> Hi Jason Villalta, >>>> >>>> Can you raise the ticket for the same. I can work on it if you assign to >>>> me. >>>> >>>> Thanks >>>> Rajesh Battala >>>> >>>>> -----Original Message----- >>>>> From: Edison Su [mailto:edison...@citrix.com] >>>>> Sent: Friday, February 15, 2013 4:59 AM >>>>> To: cloudstack-us...@incubator.apache.org >>>>> Subject: RE: Change qcow disk cache=none >>>>> >>>>> The code is at https://git-wip-us.apache.org/repos/asf?p=incubator- >>>>> cloudstack.git;a=blob;f=plugins/hypervisors/kvm/src/com/cloud/hypervis >>>>> or/kv >>>>> >>>> m/resource/LibvirtVMDef.java;h=acfd9cf1fe8eba217f09e20adf3101d1295d51d >>>>> >>>>> a;hb=HEAD, search "cache". >>>>> you can add a global configuration in cloudstack, or add a >>>>> configuration in agent.properties, to specify cache attribute. >>>>> >>>>>> -----Original Message----- >>>>>> From: Jason Villalta [mailto:ja...@rubixnet.com] >>>>>> Sent: Thursday, February 14, 2013 2:16 PM >>>>>> To: cloudstack-us...@incubator.apache.org >>>>>> Subject: Re: Change qcow disk cache=none >>>>>> >>>>>> Ok, I see the folks at openstack ran into a similar issue. >>>>>> https://bugs.launchpad.net/nova/+bug/959637 >>>>>> >>>>>> How can I contribute to this? Can you recommend a part of the code >>>>>> to look at so I can build and test a patch? >>>>>> >>>>>> On Thu, Feb 14, 2013 at 5:13 PM, Edison Su <edison...@citrix.com> >>>>>> wrote: >>>>>>> >>>>>>> need to change cloudstack java code, right now, it's hard coded to >>>>>> >>>>>> "cache=none". >>>>>>> >>>>>>> >>>>>>>> -----Original Message----- >>>>>>>> From: Jason Villalta [mailto:ja...@rubixnet.com] >>>>>>>> Sent: Thursday, February 14, 2013 1:45 PM >>>>>>>> To: cloudstack-us...@incubator.apache.org >>>>>>>> Subject: Change qcow disk cache=none >>>>>>>> >>>>>>>> Is there a way to change this kvm disk cache setting in >>>>>>>> Cloudstack or >>>>>> >>>>>> template? >>>>>>>> >>>>>>>> If so where is the setting applied? >>>>>>>> >>>>>>>> -- >>>>>>>> -- >>>>>>>> Jason Villalta >>>>>>>> Co-founder >>>>>>>> 800.799.4407 | www.RubixTechnology.com >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> -- >>>>>> Jason Villalta >>>>>> Co-founder >>>>>> 800.799.4407 | www.RubixTechnology.com >> >> >> >> > -- -- Jason Villalta Co-founder 800.799.4407 | www.RubixTechnology.com
