[libvirt-users] advice on creating and reusing connections

[Daniel Veillard]

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


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