Libvirt provides a portable, long term stable C API for managing the virtualization technologies provided by many operating systems. It includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER Hypervisor.
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Daniel P. Berrangé 031878c236 src: warn if client hits the max requests limit
Since they are simply normal RPC messages, the keep alive packets are
subject to the "max_client_requests" limit just like any API calls.

Thus, if a client hits the 'max_client_requests' limit and all the
pending API calls take a long time to complete, it may result in
keep-alives firing and dropping the client connection.

This has been seen by a number of users with the default value of
max_client_requests=5, by issuing 5 concurrent live migration
operations.

By printing a warning message when this happens, admins will be alerted
to the fact that their active clients are exceeding the default client
requests limit.

Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2022-10-07 14:47:25 +01:00
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build-aux tools: add virt-qemu-qmp-proxy for proxying QMP via libvirt QEMU guests 2022-10-07 14:32:36 +01:00
ci ci: refresh with latest lcitool manifest 2022-10-06 05:15:54 -04:00
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examples Introduce VIR_DOMAIN_RUNNING_POSTCOPY_FAILED 2022-06-07 17:40:20 +02:00
include qemu: Add UNDEFINE_TPM and UNDEFINE_KEEP_TPM flags 2022-10-04 16:34:28 +02:00
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libvirt-admin.pc.in
libvirt-lxc.pc.in
libvirt-qemu.pc.in
libvirt.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt.spec.in tools: add virt-qemu-qmp-proxy for proxying QMP via libvirt QEMU guests 2022-10-07 14:32:36 +01:00
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Libvirt API for virtualization

Libvirt provides a portable, long term stable C API for managing the virtualization technologies provided by many operating systems. It includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER Hypervisor.

For some of these hypervisors, it provides a stateful management daemon which runs on the virtualization host allowing access to the API both by non-privileged local users and remote users.

Layered packages provide bindings of the libvirt C API into other languages including Python, Perl, PHP, Go, Java, OCaml, as well as mappings into object systems such as GObject, CIM and SNMP.

Further information about the libvirt project can be found on the website:

https://libvirt.org

License

The libvirt C API is distributed under the terms of GNU Lesser General Public License, version 2.1 (or later). Some parts of the code that are not part of the C library may have the more restrictive GNU General Public License, version 2.0 (or later). See the files COPYING.LESSER and COPYING for full license terms & conditions.

Installation

Instructions on building and installing libvirt can be found on the website:

https://libvirt.org/compiling.html

Contributing

The libvirt project welcomes contributions in many ways. For most components the best way to contribute is to send patches to the primary development mailing list. Further guidance on this can be found on the website:

https://libvirt.org/contribute.html

Contact

The libvirt project has two primary mailing lists:

Further details on contacting the project are available on the website:

https://libvirt.org/contact.html