no one can explain it for me?
2013/5/10 Nguyen Anh Tu <ng.t...@gmail.com>
> Hi forks,
>
> I'm working on CS + XCP. I have a question:
>
> When starting VM, Async job "startvm" is sent to XCP Host via xapi. Then
> we have to wait until xapi task responses. This code here:
>
> void startVM(Connection conn, Host host, VM vm, String vmName) throws
> XmlRpcException {
> Task task = null;
> try {
> * task = vm.startOnAsync(conn, host, false, true);*
> try {
> //poll every 1 seconds , timeout after 10 minutes
> *waitForTask(conn, task, 1000, 10 * 60 * 1000);*
> *checkForSuccess(conn, task);*
> } catch (Types.HandleInvalid e) {
> if (vm.getPowerState(conn) == Types.VmPowerState.RUNNING) {
> task = null;
> return;
> }
> throw new CloudRuntimeException("Shutdown VM catch
> HandleInvalid and VM is not in RUNNING state");
> }
> } catch (XenAPIException e) {
> String msg = "Unable to start VM(" + vmName + ") on host(" +
> _host.uuid +") due to " + e.toString();
> s_logger.warn(msg, e);
> throw new CloudRuntimeException(msg);
> }finally {
> if( task != null) {
> try {
> task.destroy(conn);
> } catch (Exception e1) {
> s_logger.debug("unable to destroy task(" +
> task.toString() + ") on host(" + _host.uuid +") due to " + e1.toString());
> }
> }
> }
> }
>
> Can you explain how xapi task work? How xapi queue work? When its task
> responses?
>
> Thanks,
>
> --
>
> N.g.U.y.e.N.A.n.H.t.U
>
--
N.g.U.y.e.N.A.n.H.t.U
