[libvirt-users] advice on creating and reusing connections
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Are there any recommendations as to how often a new connection should be
made versus reused? Right now we create a new connection *every time* we hit
libvirt for something. We can easily change this so that a single connection
is made for a series of libvirt calls, or even so that a single connection
is used for the lifetime of the running application.
What are the issues to consider when making these choices?
We are connecting to qemu:///system.
Thank you.
.:. brainsik
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On Wed, Mar 31, 2010 at 10:32:13AM -0700, jeremy avnet wrote:
Are there any recommendations as to how often a new connection should
be
made versus reused? Right now we create a new connection *every time* we hit
libvirt for something. We can easily change this so that a single connection
is made for a series of libvirt calls, or even so that a single connection
is used for the lifetime of the running application.
What are the issues to consider when making these choices?
libvirt API used to be not thread safe, so for concurrent or GUI
related it was often a good idea to at least have one connection per
thread. Those days it's not really needed. Note that most operations
in libvirt are synchronous, and a few are rather long running so
it's tempting to have concurrent operations in different threads.
Daniel
--
Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/
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jeremy avnet