search for: pivot

...le in his lecture notes on <http://www.ci.tuwien.ac.at/Conferences/DSC-2003/Tutorials/RExtensions/slide s.pdf> http://www.ci.tuwien.ac.at/Conferences/DSC-2003/Tutorials/RExtensions/slides .pdf e.g. SEXP La_DGE_dc(SEXP A) { SEXP aa = PROTECT(duplicate(A)); SEXP adims, pivot, val; int m, n, info; if (!isMatrix(aa) || !isReal(aa)) { error("A must be a double precision matrix"); } adims = GET_DIM(aa); m = INTEGER(adims)[0]; n = INTEGER(adims)[1]; pivot = PROTECT(NEW_INTEGER(m < n ? m :...

Hi, Is it possible to "pivot" to a new image without doing blockcopy or blockpull? I know how to use snapshots and blockpull to create a new image and pivot to using it live, but what I would like to do is to have a VM switch from using imageA.qcow2 to image2.qcow2 while running. I don't see why this wouldn't be p...

I suggest adding a 'pivot' argument to qr.R, to obtain columns in the same order as the original x, so that a <- qr(x) qr.Q(a) %*% qr.R(a, pivot=TRUE) returns x. -------------------------------------------------- # File src/library/base/R/qr.R qr.R <- function(qr, complete = FALSE, pivot = FALSE) { # Args...

On 05/19/2015 12:52 PM, Mathew Moon wrote: > Hi, > > Is it possible to "pivot" to a new image without doing blockcopy or > blockpull? No. Qemu does not support arbitrary reopening of a backing chain yet (even with the 'change-backing-file' QMP command, that is just rewriting contents of the qcow2 metadata, and not actually reopening the chain). The only way...

Hi Friends, i'm new to R....I have data frame having columns X Y Z....I want to do pivot on this data frame....can any one help me on this... Thanks, Namit -- View this message in context: http://r.789695.n4.nabble.com/Create-a-Pivot-tp4637629.html Sent from the R help mailing list archive at Nabble.com.

I wonder if someone could explain how the following R idiom works (it's used in glm.fit). start <- coef start[fit$pivot] <- coef coef is a vector of coefficients, set by .Fortran("dqrls", ...). fit$pivot is a vector of integer indexes (indicating how dqrls permuted the columns of x). If coef has n elements, fit$pivot is a permutation of seq(1,5). start[fit$pivot] is simple enough, but the assignment...

...ng postgresql as a replication group. I am trying a lot of different things and often have to take a snapshot of all 5 VM's, do some work, and then to revert to the previous snapshot I have to: 1. kill the VM 2. edit the VM's config 3. start the VM What I would like is to be able to "pivot" the "current" image to be the previous snapshot (in most cases). I understand that if this were possible then there would be applications crash because something on disk doesn't jive with what is in memory, but I am ok with that, I just want to get my databases back to "squ...

...ropped to a few bytes/sec for a few seconds and then was fast again. However we still observe that the following fails regularily: $ virsh snapshot-create-as --domain domain --name backup --no-metadata --atomic --disk-only --diskspec hda,snapshot=external $ virsh blockcommit domain hda --active --pivot error: failed to pivot job for disk hda error: block copy still active: disk 'hda' not ready for pivot yet Could not merge changes for disk hda of domain. VM may be in invalid state. Then running the following in the morning succeeds and successfully pivotes the snapshot into the base imag...

...When performing live merge, in few cases, we see the following exception: Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/vdsm/utils.py", line 736, in wrapper return f(*a, **kw) File "/usr/share/vdsm/virt/vm.py", line 5278, in run self.tryPivot() File "/usr/share/vdsm/virt/vm.py", line 5247, in tryPivot ret = self.vm._dom.blockJobAbort(self.drive.name, flags) File "/usr/share/vdsm/virt/virdomain.py", line 68, in f ret = attr(*args, **kwargs) File "/usr/lib/python2.7/site-packages/vdsm/libvirtconnecti...

...I am trying a lot of different things and often > have to take a snapshot of all 5 VM's, do some work, and then to revert to > the previous snapshot I have to: > > 1. kill the VM > 2. edit the VM's config > 3. start the VM > > What I would like is to be able to "pivot" the "current" image to be the > previous snapshot (in most cases). I understand that if this were possible > then there would be applications crash because something on disk doesn't > jive with what is in memory, but I am ok with that, I just want to get my > databas...

Hello, I did a virsh snapshot-create-as --domain meta sn1 --diskspec vda,file=/var/lib/libvirt/images/meta-sn1.qcow2 --disk-only --atomic --no-metadata Then I successfully blockcommitted 2 disks: virsh blockcommit meta vda --active --verbose --pivot virsh blockcommit meta vdb --active --verbose --pivot But when doing virsh blockcommit meta vdc --active --verbose --pivot I got: Block commit: [100 %]error: failed to pivot job for disk vdc error: block copy still active: disk 'vdc' not ready for pivot yet Domain snapshot sn1 created And...

...target device? Or it will still use the original disk image? AFAIK, a transient guest only means it will disappear after the virtualisation session ends. > virsh dumpxml $dom > file > virsh undefine $dom > virsh blockcopy $dom /ssd/image.raw /hdd/image.raw \ > --wait --verbose --pivot > virsh define file I could not find anything about "pivot" or "pivoting"? What does --pivot do in this case? Thank you. -- Üdvözlettel / Best regards Horváth Gergely | gergely.horvath@inepex.com IneTrack - Nyomkövetés egyszerűen | Inepex Kft. Ügyfélszolgálat: support@i...

Hey guys, I tried to program quicksort like this but somethings wrong. please help >partition <- function(x, links, rechts){ > > i <- links > j <- rechts > t <- 0 > pivot <- sample(x[i:j],1) > > while(i <= j){ > > while(x[i] <= pivot){ > i = i+1} > > while(x[j] >= pivot){ > j = j-1} > > if( i <= j){ > > t = x[i] > x[i] = x[j] > x[j] = t > > i=i+1 > j=j-1 > &g...

Hello, it happened with another VM: # virsh snapshot-create-as --domain rasa sn1 --diskspec vda,file=/var/lib/libvirt/images/rasa-sn1.qcow2 --disk-only --atomic --no-metadata # virsh blockcommit rasa vda --active --verbose --pivot Block commit: [100 %]error: failed to pivot job for disk vda error: block copy still active: disk 'vda' not ready for pivot yet # virsh domblklist rasa Target Source ------------------------------------------------ vda /var/lib/libvirt/images/rasa-sn1.qcow2 If blockcommit had s...

The bug I submitted yesterday (It's not entered in the bug data base, so I have no ID for it) included a suggested fix that is not correct. It worked for the examples I gave because there was no pivoting in fact, or only pivot permutations that were idempotent. A correction that works in general on the examples I gave makes these two changes in qr.coef(): ## coef[qr$pivot, ] <- .Call("qr_coef_cmplx", qr, y, PACKAGE = "base")[1:p] coef[qr$pivot,] <-...

On Wed, Dec 28, 2016 at 01:26:12PM +0200, Ala Hino wrote: > Hi guys, > > When performing live merge, in few cases, we see the following exception: [...] > libvirtError: block copy still active: disk 'vdb' not ready for pivot yet You can see if the block operation is still in progress or not by doing: `sudo virsh blockjob vm1 vdb --info`. > That exception observed in following BZs: > > https://bugzilla.redhat.com/1376580 > https://bugzilla.redhat.com/1397122 [I see, that the above are oVirt bugs.] >...

On Wednesday 07 January 2015 09:46:09 Eric Blake wrote: > On 01/07/2015 07:19 AM, Thomas Stein wrote: > > Hello. > > > > I'm seeing this error while doing a backup of a VM. > > > > + virsh blockcommit kaltura vda --active --verbose --pivot > > Block Commit: [100 %]error: failed to pivot job for disk vda > > error: internal error: unable to execute QEMU command > > 'block-job-complete': The active block job for device > > 'drive-virtio-disk0' cannot be completed > > Based on this message,...

...a few seconds and then was fast again. > > However we still observe that the following fails regularily: > > $ virsh snapshot-create-as --domain domain --name backup --no-metadata > --atomic --disk-only --diskspec hda,snapshot=external > $ virsh blockcommit domain hda --active --pivot > error: failed to pivot job for disk hda > error: block copy still active: disk 'hda' not ready for pivot yet > Could not merge changes for disk hda of domain. VM may be in invalid state. since this thread was renamed, please re-state the version of libvirt you are using. I don...

Hello one and all. Got a problem with libvirt 6.2.0 and qemu 5.0.0. virsh blockcommit mymachine vda --active --verbose --pivot works until it shows [100%] but it never actually pivots. It just sits there. Is this a known issue with 6.2.0 and i should try 6.3.0? For now i switched back to qemu 4.2.0 and this seems to solve the issue too. Any hints? Ahoi! t.

Can somebody tell me how to do the equivalent of a pivot table in R ? For example, if I have : var1 var2 var3 a x 10 b y 20 a z 10 b z 20 a z 10 b z 20 I could have : x y z a 1 0 2 b 0 1 2 where...