This makes the paragaph about attach-interface more descriptive and
correct, adding in a few bits of information that were previously
missing, e.g. --script is only allowed for bridge interfaces of Xen
domains, target name is regenerated if it starts with vnet, mac
address will be autogenerated if not specified.
(I did this in response to an email asking why a script couldn't be
specified for a bridge interface of a qemu domain, and why an
interface of type='ethernet' couldn't be created with
attach-interface)
https://bugzilla.redhat.com/show_bug.cgi?id=1072653
Upon successful upload of a volume, the target volume and storage pool
were not updated to reflect any changes as a result of the upload. Make
use of the existing stream close callback mechanism to force a backend
pool refresh to occur in a separate thread once the stream closes. The
separate thread should avoid potential deadlocks if the refresh needed
to wait on some event from the event loop which is used to perform
the stream callback.
Commit id '0e2d7305' modified the code to allow a negative value to be
supplied for the bandwidth argument of the various block virsh commands
and the migrate-setspeed; however, it failed to update the man page to
describe the "feature" whereby a very large value could be interpreted
by the hypervisor to mean maximum value allowed. Although initially
designed to handle a -1 value, the reality is just about any negative
value could be provided and essentially perform the same feature.
https://bugzilla.redhat.com/show_bug.cgi?id=1087104
Commit id 'c6212539' explicitly allowed a negative value to be used for
offset and length as a shorthand for the largest value after commit id
'f18c02ec' modified virStrToLong_ui() to essentially disallow a negative
value.
However, allowing a negative value for offset ONLY worked if the negative
value was -1 since the eventual lseek() does allow a -1 to mean the end
of the file. Providing other negative values resulted in errors such as:
$ virsh vol-download --pool default qcow3-vol2 /home/vm-images/raw \
--offset -2 --length -1000
error: cannot download from volume qcow3-vol2
error: Unable to seek /home/vm-images/qcow3-vol2 to 18446744073709551614: Invalid argument
$
Thus, it seems unreasonable to expect or allow a negative value for offset
since the only benefit is to lseek() to the end of the file and then only
take advantage of how the OS would handle such a seek. For the purposes of
upload or download of volume data, that seems to be a no-op. Therefore,
disallow a negative value for offset.
Additionally, modify the man page for vol-upload and vol-download to provide
more details regarding the valid values for both offset and length.
Snapshots and block-copy have a flag that forces qemu to re-use existing
file. Our docs weren't exactly clear on what the existing file should
contain for this to actually work.
Re-word the docs a bit to state that the file needs to be pre-created in
the desired format and the backing chain metadata needs to be set prior
to handing it over to qemu.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1084360
According to the code, 'virsh numatune' supports integers for
specifying --mode as well as the string definitions "strict",
"interleave", and "preferred". However, this possibility was not
documented anywhere, so this patch adds it to both the man page and
command help.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1085706
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Introduce flag for the block rebase API to allow the rebase operation to
leave the chain relatively addressed. Also adds a virsh switch to enable
this behavior.
Introduce flag for the block commit API to allow the commit operation to
leave the chain relatively addressed. Also adds a virsh switch to enable
this behavior.
The API is exposed under 'domcapabilities' command. Currently, with
the variety of drivers that libvirt supports, none of the command
arguments is obligatory, but all are optional instead.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
By default, the bus type is inferred from the style of the device
name('target' in this command), e.g. a device named 'sda' will
typically be exported using a SCSI bus. Actually, not only SCSI bus,
but USB/SATA bus also use this kind of device name. So add '--bus'
option for attach-disk command to allow user specify the target bus.
Signed-off-by: Yanbing Du <ydu@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The new VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE flag for
virConnectCompareCPU can be used to get an error
(VIR_ERR_CPU_INCOMPATIBLE) describing the incompatibility instead of the
usual VIR_CPU_COMPARE_INCOMPATIBLE return code.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Use virNetworkGetDHCPLeases and virNetworkGetDHCPLeasesForMAC in virsh.
The new feature supports the follwing methods:
1. Retrieve leases info for a given virtual network
2. Retrieve leases info for given network interface
tools/virsh-domain-monitor.c
* Introduce new command : net-dhcp-leases
Example Usage: net-dhcp-leases <network> [mac]
virsh # net-dhcp-leases --network default6
Expiry Time MAC address Protocol IP address Hostname Client ID or DUID
-------------------------------------------------------------------------------------------------------------------
2014-06-16 03:40:14 52:54:00:85:90:e2 ipv4 192.168.150.231/24 fedora20-test 01:52:54:00:85:90:e2
2014-06-16 03:40:17 52:54:00:85:90:e2 ipv6 2001:db8:ca2:2:1::c0/64 fedora20-test 00:04:b1:d8:86:42:e1:6a:aa:cf:d5:86:94:23:6f:94:04:cd
2014-06-16 03:34:42 52:54:00:e8:73:eb ipv4 192.168.150.181/24 ubuntu14-vm -
2014-06-16 03:34:46 52:54:00:e8:73:eb ipv6 2001:db8:ca2:2:1::5b/64 - 00:01:00:01:1b:30:c6:aa:52:54:00:e8:73:eb
tools/virsh.pod
* Document new command
src/internal.h
* Introduce new macro: EMPTYSTR
Add knobs to virsh to manage a 2-phase active commit of the top
layer, similar to knobs already present on blockcopy. While this
code will fail until later patches actually implement the new
knobs in the qemu driver, doing it now proves that the API is
usable and also makes it easier for testing the qemu changes as
they are made.
* tools/virsh-domain.c (cmdBlockCommit): Add --active, --pivot,
and --keep-overlay options, modeled after blockcopy.
(blockJobImpl): Support --active flag.
* tools/virsh.pod (blockcommit): Document new flags.
(blockjob): Mention 2-phase commit interaction.
Signed-off-by: Eric Blake <eblake@redhat.com>
Peter's review of an early version of my addition of active block
commit pointed out some issues that I was copying from the block
copy code; fix them up now before perpetuating them.
For virsh commands that manage a single API call, it's nice to have
a 1:1 mapping of options to flags, so that we can test that
lower-layer software handles flag combinations correctly. But where
virsh is introducing syntactic sugar to combine multiple API calls
into a single user interface, we might as well make that interface
compact. That is, we should allow the shorter command-line of
'blockcopy $dom $disk --pivot' without having to explicitly specify
--wait, because this isn't directly a flag passed to a single
underlying API call.
Also, my use of embedded ?: ternaries bordered on unreadable.
* tools/virsh-domain.c (cmdBlockCopy): Make --pivot, --finish,
and --timeout imply --wait. Drop excess ?: operators.
* tools/virsh.pod (blockcopy): Update documentation.
Signed-off-by: Eric Blake <eblake@redhat.com>
the 'migration_host' description may be a bit difficult to
understand for some users, so enhance the manual
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Report CPU affinities / online CPUs in human-readable form when
this flag is present:
Before:
CPU Affinity: y-yy
After:
CPU Affinity: 0,2-3 (out of 4)
https://bugzilla.redhat.com/show_bug.cgi?id=985980
These APIs are exposed under new virsh command 'domtime' which both gets
and sets (not at the same time of course :)).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This patch adds "[--format] <string>" to "virsh dump --memory-only", which is
changed to use the new virDomainCoreDumpWithFormat API.
Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
When listening for a subset of monitor events, it can be tedious
to register for each event name in series; nicer is to register
for multiple events in one go. Implement a flag to use regex
interpretation of the event filter.
While at it, prove how much I hate the shift key, by adding a
way to filter for 'shutdown' instead of 'SHUTDOWN'. :)
* include/libvirt/libvirt-qemu.h
(virConnectDomainQemuMonitorEventRegisterFlags): New enum.
* src/libvirt-qemu.c (virConnectDomainQemuMonitorEventRegister):
Document flags.
* tools/virsh-domain.c (cmdQemuMonitorEvent): Expose them.
* tools/virsh.pod (qemu-monitor-event): Document this.
* src/conf/domain_event.c
(virDomainQemuMonitorEventStateRegisterID): Add flags.
(virDomainQemuMonitorEventFilter): Handle regex, and optimize
client side.
(virDomainQemuMonitorEventCleanup): Clean up regex.
Signed-off-by: Eric Blake <eblake@redhat.com>
Any new API deserves a good virsh wrapper :)
qemu-monitor-event [<domain>] [<event>] [--pretty] [--loop] [--timeout <number>]
Very similar to the previous work on 'virsh event'. For an
example session:
$ virsh -c qemu:///system qemu-monitor-event --event SHUTDOWN&
$ virsh -c qemu:///system start f18-live
Domain f18-live started
$ virsh -c qemu:///system destroy f18-live
Domain f18-live destroyed
event SHUTDOWN at 1391212552.026544 for domain f18-live: (null)
events received: 1
[1]+ Done virsh -c qemu:///system qemu-monitor-event --event SHUTDOWN
$
* tools/virsh-domain.c (cmdQemuMonitorEvent): New command.
* tools/virsh.pod (qemu-monitor-event): Document it.
Signed-off-by: Eric Blake <eblake@redhat.com>
We allow translation from no_bandwidth to has_bandwidth for a vnic.
However, going in the opposite direction is not implemented. It's not
limitation of the API rather than internal implementation. The problem
is, we correctly detect that user hasn't specified any outbound (say
he wants to clear out outbound). However, this gets overwritten by
current vnic outbound settings. Then, virNetDevBandwidthSet doesn't
change anything. We need to stop overwriting the outbound if users
don't want us to. Same applies for inbound.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Introducing keepalive similarly to Guannan around 2 years ago. Since
we want to introduce keepalive for every connection, it makes sense to
wrap the connecting function into new virsh one that can deal
keepalive as well.
Function vshConnect() is now used for connecting and keepalive added
in that function (if possible) helps preventing long waits e.g. while
nework goes down during migration.
This patch also adds the options for keepalive tuning into virsh and
fails connecting only when keepalives are explicitly requested and
cannot be set (whether it is due to missing support in connected
driver or remote server). If not explicitely requested, a debug
message is printed (hence the addition to virsh-optparse test).
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1073506
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=822839
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
'virsh lxc-enter-namespace' does not have a way to reflect exit
status to the caller in single-command mode, but we might as well
at least report the exit status. Prior to this patch,
$ virsh -c lxc:/// lxc-enter-namespace shell /bin/sh 'exit 3'; echo $?
1
now it gives some details:
$ virsh -c lxc:/// lxc-enter-namespace shell /bin/sh -c 'exit 3'; echo $?
error: internal error: Child process (31557) unexpected exit status 3
1
Also useful:
$ virsh -c lxc:/// lxc-enter-namespace shell /bin/sh -c 'kill $$'; echo $?
error: internal error: Child process (31585) unexpected fatal signal 15
1
* tools/virsh-domain.c (cmdLxcEnterNamespace): Avoid magic numbers.
Dispatch any error.
* tools/virsh.pod: Document that non-zero exit status is collapsed.
Signed-off-by: Eric Blake <eblake@redhat.com>
Similar to our event-test demo program, it's nice to be able to
have a mode where we can sniff all events at once, rather than
having to spawn multiple virsh in parallel with one for each
event type.
(Can I just say our RegisterAny design is lousy? The fact that
the majority of our callback pointers have a function signature
with the opaque data in a different position, and that we have
to cast the function signature before registering it, makes it
hard to write a generic callback function; we have to write one
for every type of event id. Life would have been easier if we
had designed the callback as a fixed signature with a void*
and size parameter, and then allowed the caller to downcast
the void* to a particular struct for data specific to their
callback id, where we could have then had a single function
with a switch statement for each event id, and register that
one function for all types of events. It would also be nicer
if the callback functions knew which callbackID was being used
when invoking that callback, so that I could use a common data
structure among all registrations instead of having to create
an array of one data per callback. But I really don't want to
go add yet another event API design.)
* tools/virsh-domain.c (cmdEvent): Add --all parameter; convert
all callbacks to support shared counter.
* tools/virsh.pod (event): Document it.
Signed-off-by: Eric Blake <eblake@redhat.com>
Add 'virsh net-event --list' and 'virsh net-event [net] --event=name
[--loop] [--timeout]'. Very similar to 'virsh event'.
* tools/virsh.pod (net-event): Document new command.
* tools/virsh-network.c (vshNetworkEventToString, vshNetEventData)
(vshEventLifecyclePrint, cmdNetworkEvent): New struct and
functions.
Signed-off-by: Eric Blake <eblake@redhat.com>
Add 'virsh event --list' and 'virsh event [dom] --event=name
[--loop] [--timeout]'. Borrows somewhat from event-test.c,
but defaults to a one-shot notification, and takes advantage
of the event loop integration to allow Ctrl-C to interrupt the
wait for an event. For now, this just does lifecycle events.
* tools/virsh.pod (event): Document new command.
* tools/virsh-domain.c (vshDomainEventToString)
(vshDomainEventDetailToString, vshDomEventData)
(vshEventLifecyclePrint, cmdEvent): New struct and functions.
Signed-off-by: Eric Blake <eblake@redhat.com>
Recent autotest/virt-test testing on f20 discovered an anomaly in how
the bandwidth options are documented and used. This was discovered due
to a bug fix in the /sbin/tc utility found in iproute-3.11.0.1 (on f20)
in which overflow was actually caught and returned as an error. The fix
was first introduced in iproute-3.10 (search on iproute2 commit 'a303853e').
The autotest/virt-test test for virsh domiftune was attempting to send
the largest unsigned integer value (4294967295) for maximum value
testing. The libvirt xml implementation was designed to manage values
in kilobytes thus when this value was passed to /sbin/tc, it (now)
properly rejected the 4294967295kbps value.
Investigation of the problem discovered that formatdomain.html.in and
formatnetwork.html.in described the elements and property types slightly
differently, although they use the same code - virNetDevBandwidthParseRate()
(shared by portgroups, domains, and networks xml parsers). Rather than
have the descriptions in two places, this patch will combine and reword
the description under formatnetwork.html.in and have formatdomain.html.in
link to that description.
This documentation faux pas was continued into the virsh man page where
the bandwidth description for both 'attach-interface' and 'domiftune'
did not indicate the format of each value, thus leading to the test using
largest unsigned integer value assuming "bps" rather than "kbps", which
ultimately was wrong.
And provide domain summary stat in that case, for lxc backend.
Use case is a container inheriting all devices from the host,
e.g. when doing application containerization.
For pool which relies on remote resources, such as a "iscsi" type
pool, since how long it takes to export the corresponding devices
to host's sysfs is really depended, it could depend on the network
connection, it also could depend on the host's udev procedures. So
it's likely that the volumes are not able to be detected during pool
starting process, polling the sysfs doesn't work, since we don't
know how much time is best for the polling, and even worse, the
volumes could still be not detected or partly not detected even after
the polling. So we end up with a documentation to prompt the fact,
in virsh manual.
And as a small improvement, let's explicitly say no LUNs found in
the debug log in that case.
Explicitly lists the possible values for "--target" option;
Gets rid of the confused strings like "Suspend-to-RAM";
Emphasises the node *has to* be suspended in the time duration
specified by "--duration". And rewords the entire document a
bit according to the API's implementation and document.
With this patch, user can setup the throttle blkio cgorup
for domain through the virsh cmd, such as:
virsh blkiotune domain1 --device-read-bytes-sec /dev/sda1,1000000,/dev/sda2,2000000
--device-write-bytes-sec /dev/sda1,1000000 --device-read-iops-sec /dev/sda1,10000
--device-write-iops-sec /dev/sda1,10000,/dev/sda2,0
This patch also add manpage for these new options.
Signed-off-by: Guan Qiang <hzguanqiang@corp.netease.com>
Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Recent addition of the gluster pool type omitted fixing the virsh and
virConnectListAllStoragePool filters. A typecast of the converting
function in virsh showed that also the sheepdog pool was omitted in the
command parser.
This patch adds gluster pool filtering support and fixes virsh to
properly convert all supported storage pool types. The added typecast
should avoid doing such mistakes in the future.
https://bugzilla.redhat.com/show_bug.cgi?id=1044445
When undefining a VM with storage the man page doesn't explicitly
mention that the volumes need to be a part of the storage pool otherwise
it won't work.
