Michael Goldish writes:
> On 09/25/2010 11:36 AM, Jason Wang wrote:
> > This test just do the file transfer from host to guest during migartion in
> > order
> > to check whether the nic/block state could be saved and loaded correctly.
> >
> > Signed-off-by: Jason Wang <[email protected]>
> > ---
> > .../kvm/tests/migration_with_file_transfer.py | 59
> > ++++++++++++++++++++
> > client/tests/kvm/tests_base.cfg.sample | 7 ++
> > 2 files changed, 66 insertions(+), 0 deletions(-)
> > create mode 100644 client/tests/kvm/tests/migration_with_file_transfer.py
> >
> > diff --git a/client/tests/kvm/tests/migration_with_file_transfer.py
> > b/client/tests/kvm/tests/migration_with_file_transfer.py
> > new file mode 100644
> > index 0000000..8a316bf
> > --- /dev/null
> > +++ b/client/tests/kvm/tests/migration_with_file_transfer.py
> > @@ -0,0 +1,59 @@
> > +import logging, time
> > +from autotest_lib.client.common_lib import utils, error
> > +import kvm_subprocess, kvm_test_utils, kvm_utils
> > +
> > +
> > +def run_migration_with_file_transfer(test, params, env):
> > + """
> > + KVM migration test:
> > + 1) Get a live VM and clone it.
> > + 2) Verify that the source VM supports migration. If it does, proceed
> > with
> > + the test.
> > + 3) Reboot the VM
> > + 4) Send a migration command to the source VM and wait until it's
> > finished.
> > + 5) Kill off the source VM.
> > + 6) Log into the destination VM after the migration is finished.
> > +
> > + @param test: kvm test object.
> > + @param params: Dictionary with test parameters.
> > + @param env: Dictionary with the test environment.
> > + """
> > +
> > + def transfer_test(vm, host_path, guest_path, timeout=120):
> > + """
> > + vm.copy_files_to does not raise exception, so we need a wrapper
> > + in order to make it to be used by BackgroundTest.
> > + """
> > + if not vm.copy_files_to(host_path, guest_path, timeout=timeout):
> > + raise error.TestError("Fail to do the file transfer!")
> > +
> > + vm = kvm_test_utils.get_living_vm(env, params.get("main_vm"))
> > + timeout = int(params.get("login_timeout", 360))
> > + session = kvm_test_utils.wait_for_login(vm, timeout=timeout)
> > +
> > + mig_timeout = float(params.get("mig_timeout", "3600"))
> > + mig_protocol = params.get("migration_protocol", "tcp")
> > +
> > + guest_path = params.get("guest_path", "/tmp")
> > + file_size = params.get("file_size", "1000")
> > + transfer_timeout = int(params.get("transfer_timeout", "240"))
> > + bg = None
> > +
> > + try:
> > + utils.run("dd if=/dev/zero of=/tmp/file bs=1M count=%s" %
> > file_size)
>
> Wouldn't it be useful to read from /dev/urandom instead of /dev/zero,
> and compare the md5 hash of the file generated on the host with the md5
> hash of the file that arrives in the guest?
>
Yes, as the file transfer test have been applied, I would rebase this
case to use it.
> > +
> > + # Transfer file from host to guest
> > + bg = kvm_test_utils.BackgroundTest(transfer_test,
> > + (vm, "/tmp/file", guest_path,
> > + transfer_timeout))
> > + bg.start()
> > +
> > + while bg.is_alive():
> > + logging.info("File transfer is not ended, start a round of
> > migration ...")
> > + # Migrate the VM
> > + dest_vm = kvm_test_utils.migrate(vm, env, mig_timeout,
> > mig_protocol, False)
> > + vm = dest_vm
> > + finally:
> > + if bg: bg.join()
> > + session.close()
> > + utils.run("rm -rf /tmp/zero")
> --
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