On 02/01/11 15:34, Stefan Hajnoczi wrote: > On Tue, Feb 1, 2011 at 2:26 PM, Jes Sorensen <jes.soren...@redhat.com> wrote: >> I have to admit you lost me here, where do you get that 500ms time from? >> Is that the XMLRPC polling time or? I just used the example code from >> other agent calls. > > 500 ms is made up. I was thinking, "what would a reasonable polling > interval be?" and picked a sub-second number. > > Can you explain how the timeout in fsfreeze can happen? It's probably > because I don't know the virtagent details.
Ah ok. >From what I understand, the XMLRPC code is setup to timeout if the guest doesn't reply within a certain amount of time. In that case, the caller needs to poll to wait for the guest to complete the freeze. This really should only happen if you have a guest with a large number of very large file systems. I don't know how likely it is to happen in real life. Cheers, Jes
