search for: pivoted

I am using C code to create an S4 object based on Douglas Bates's example 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

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 possible since some of the existing libvirt tools can do this when

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: # qr: a QR decomposition, produced by qr() # complete:

...geB $ # create a destination qcow2 file $ qemu-img create -f qcow2 -obacking_file=imageB,backing_fmt=$fmt wrapB $ # block copy - note below that you may need to make $dom transient $ virsh blockcopy $dom vda wrapB --shallow --reuse-external --pivot \ --verbose $ # commit the wrapper back into the pivoted base $ virsh blockcommit $dom vda --shallow --active --verbose --pivot $ # delete the temporaries $ rm wrapA wrapB If $your_cool_cp is fast, such as taking advantage of a copy-on-write primitive of your storage array, then the overall operation can complete in under a second, because the amount of...

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]

...ion qcow2 file > $ qemu-img create -f qcow2 -obacking_file=imageB,backing_fmt=$fmt wrapB > $ # block copy - note below that you may need to make $dom transient > $ virsh blockcopy $dom vda wrapB --shallow --reuse-external --pivot \ > --verbose > $ # commit the wrapper back into the pivoted base > $ virsh blockcommit $dom vda --shallow --active --verbose --pivot > $ # delete the temporaries > $ rm wrapA wrapB > > If $your_cool_cp is fast, such as taking advantage of a copy-on-write > primitive of your storage array, then the overall operation can complete > in und...

...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 image while the vm is live: $ virsh blockjob domain hda --abort $ virsh blockcommit domain hda --active --pivot Successfully pivoted We run the backup process every day once and it failed on the following days: 2017-07-07 2017-07-20 2017-07-27 2017-08-12 2017-08-14 Looking at this it roughly happens once a week and the guest from then on writes into the snapshot backlog. That snapshot backlog file grows about 8gb every day an...

Hi guys, 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 =

...gt; $ qemu-img create -f qcow2 -obacking_file=imageB,backing_fmt=$fmt wrapB >> $ # block copy - note below that you may need to make $dom transient >> $ virsh blockcopy $dom vda wrapB --shallow --reuse-external --pivot \ >> --verbose >> $ # commit the wrapper back into the pivoted base >> $ virsh blockcommit $dom vda --shallow --active --verbose --pivot >> $ # delete the temporaries >> $ rm wrapA wrapB >> >> If $your_cool_cp is fast, such as taking advantage of a copy-on-write >> primitive of your storage array, then the overall operation...

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:

Thank you Eric, On 2014-02-05 17:23, Eric Blake wrote: > Yes, live storage migration is possible; although at the moment, qemu is > lacking a way to restart the operation if it fails midstream, so libvirt > only allows the operation if you are willing to temporarily make your > guest transient. What does this mean? Will I loose anything if - for example - there is not enough space on

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

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

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, ]

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

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

...lly want to dig through the old thread. > Then running the following in the morning succeeds and successfully pivotes > the snapshot into the base image while the vm is live: > > $ virsh blockjob domain hda --abort > $ virsh blockcommit domain hda --active --pivot > Successfully pivoted > > We run the backup process every day once and it failed on the following > days: > > 2017-07-07 > 2017-07-20 > 2017-07-27 > 2017-08-12 > 2017-08-14 > > Looking at this it roughly happens once a week and the guest from then on > writes into the snapshot back...

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 entries in the table are counts of var3.