kvm.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
* [PATCH 1/3] KVM Test: Introduce a helper class to run a test in the background
@ 2010-11-26 23:01 Lucas Meneghel Rodrigues
  2010-11-26 23:01 ` [PATCH 2/3] KVM test: Test reboot during migration Lucas Meneghel Rodrigues
                   ` (2 more replies)
  0 siblings, 3 replies; 6+ messages in thread
From: Lucas Meneghel Rodrigues @ 2010-11-26 23:01 UTC (permalink / raw)
  To: autotest; +Cc: kvm, Lucas Meneghel Rodrigues, Jason Wang

Sometimes, we need to run a test when doing operations on a running VM
(such as migrate the vm during its rebooting ). So this patch introduces
a simple warpper BackgroundTest to run a specified test in the background
through a dedicated thread, it also records the exception raised in the
thead and raise it when master call join().

Changes from v1:
- Rebase against latest upstream

Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 client/tests/kvm/kvm_test_utils.py |   49 +++++++++++++++++++++++++++++++++++-
 1 files changed, 48 insertions(+), 1 deletions(-)

diff --git a/client/tests/kvm/kvm_test_utils.py b/client/tests/kvm/kvm_test_utils.py
index e7c8d33..218bf31 100644
--- a/client/tests/kvm/kvm_test_utils.py
+++ b/client/tests/kvm/kvm_test_utils.py
@@ -21,7 +21,7 @@ More specifically:
 @copyright: 2008-2009 Red Hat Inc.
 """
 
-import time, os, logging, re, commands, signal
+import time, os, logging, re, commands, signal, threading
 from autotest_lib.client.common_lib import error
 from autotest_lib.client.bin import utils
 import kvm_utils, kvm_vm, kvm_subprocess, scan_results
@@ -564,6 +564,53 @@ def run_autotest(vm, session, control_path, timeout, outputdir):
         raise error.TestFail(e_msg)
 
 
+class BackgroundTest(object):
+    """
+    This class would run a test in background through a dedicated thread.
+    """
+
+    def __init__(self, func, params):
+        """
+        Initialize the object and set a few attributes.
+        """
+        self.thread = threading.Thread(target=self.launch,
+                                       args=(func, params))
+        self.exception = None
+
+
+    def launch(self, func, params):
+        """
+        Catch and record the exception.
+        """
+        try:
+            func(*params)
+        except Exception, e:
+            self.exception = e
+
+
+    def start(self):
+        """
+        Run func(params) in a dedicated thread
+        """
+        self.thread.start()
+
+
+    def join(self):
+        """
+        Wait for the join of thread and raise its exception if any.
+        """
+        self.thread.join()
+        if self.exception:
+            raise self.exception
+
+
+    def is_alive(self):
+        """
+        Check whether the test is still alive.
+        """
+        return self.thread.is_alive()
+
+
 def get_loss_ratio(output):
     """
     Get the packet loss ratio from the output of ping
-- 
1.7.2.3


^ permalink raw reply related	[flat|nested] 6+ messages in thread
* [PATCH 0/3] Launch other test during migration
@ 2010-09-25  9:36 Jason Wang
  2010-09-25  9:36 ` [PATCH 1/3] KVM Test: Introduce a helper class to run a test in the background Jason Wang
  0 siblings, 1 reply; 6+ messages in thread
From: Jason Wang @ 2010-09-25  9:36 UTC (permalink / raw)
  To: lmr, autotest; +Cc: kvm, mst

We could give a further test of migration by launch test during migartion. So
the following series implements:

- A simple class to run a specified test in the background which could be used
to launch other test during migartion. Its design is rather simple and its usage
is a little tricky, but it work well.
- Two sample tests which take advantages of the background class: Test reboot
during guest migration and test file_transfer during guest migration.

In the future, we could even lauch autotest client test during guest migation.

---

Jason Wang (3):
      KVM Test: Introduce a helper class to run a test in the background
      KVM test: Test reboot during migration
      KVM test: Test the file transfer during migartion


 client/tests/kvm/kvm_test_utils.py                 |   44 +++++++++++++++
 .../kvm/tests/migration_with_file_transfer.py      |   59 ++++++++++++++++++++
 client/tests/kvm/tests/migration_with_reboot.py    |   45 +++++++++++++++
 client/tests/kvm/tests_base.cfg.sample             |   12 ++++
 4 files changed, 159 insertions(+), 1 deletions(-)
 create mode 100644 client/tests/kvm/tests/migration_with_file_transfer.py
 create mode 100644 client/tests/kvm/tests/migration_with_reboot.py

-- 
Jason Wang

^ permalink raw reply	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2010-12-01  8:04 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2010-11-26 23:01 [PATCH 1/3] KVM Test: Introduce a helper class to run a test in the background Lucas Meneghel Rodrigues
2010-11-26 23:01 ` [PATCH 2/3] KVM test: Test reboot during migration Lucas Meneghel Rodrigues
2010-11-26 23:01 ` [PATCH 3/3] KVM test: Test the file transfer during migartion Lucas Meneghel Rodrigues
2010-11-26 23:16 ` [PATCH 1/3] KVM Test: Introduce a helper class to run a test in the background Lucas Meneghel Rodrigues
2010-12-01  8:06   ` Michael Goldish
  -- strict thread matches above, loose matches on Subject: below --
2010-09-25  9:36 [PATCH 0/3] Launch other test during migration Jason Wang
2010-09-25  9:36 ` [PATCH 1/3] KVM Test: Introduce a helper class to run a test in the background Jason Wang

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).