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authorPeter Mikus <pmikus@cisco.com>2018-10-15 09:40:42 +0000
committerPeter Mikus <pmikus@cisco.com>2018-10-16 09:07:09 +0000
commit0490e94aefea47f6bac0b00339cf832c196b7f09 (patch)
treec8bb913b951d6a3acc83268eb080ff1593eafbfe /resources/libraries/python
parent4b3af03b04a8b4c084b081ee0cb1b13f81d7393c (diff)
CSIT-1338 FIX: Failed to get VPP version on host
VPP was not initialized (shm), after service restart, quickly enough. This results into vpp_api_test console timeouts when communicating over uninitialized socket. Patch is introducing more stable test to detect service (VPP) is fully ready and initialized. Change-Id: I300a763814feba28cb8163dcd4996b53b2994fec Signed-off-by: Peter Mikus <pmikus@cisco.com>
Diffstat (limited to 'resources/libraries/python')
-rw-r--r--resources/libraries/python/VPPUtil.py33
1 files changed, 26 insertions, 7 deletions
diff --git a/resources/libraries/python/VPPUtil.py b/resources/libraries/python/VPPUtil.py
index 9d2a2b9dd3..3714d3b780 100644
--- a/resources/libraries/python/VPPUtil.py
+++ b/resources/libraries/python/VPPUtil.py
@@ -12,9 +12,12 @@
# limitations under the License.
"""VPP util library."""
+
+import time
+
from resources.libraries.python.constants import Constants
from resources.libraries.python.DUTSetup import DUTSetup
-from resources.libraries.python.ssh import exec_cmd_no_error
+from resources.libraries.python.ssh import exec_cmd, exec_cmd_no_error
from resources.libraries.python.topology import NodeType
from resources.libraries.python.VatExecutor import VatExecutor
@@ -52,14 +55,27 @@ class VPPUtil(object):
exec_cmd_no_error(node, command, timeout=30, sudo=True)
@staticmethod
- def start_vpp_service(node):
+ def start_vpp_service(node, retries=60):
"""Start VPP service on the specified node.
:param node: VPP node.
+ :param retries: Number of times (default 60) to re-try waiting.
:type node: dict
+ :type retries: int
:raises RuntimeError: If VPP service fails to start.
"""
DUTSetup.start_service(node, Constants.VPP_UNIT)
+ # Sleep 1 second, up to <retry> times,
+ # and verify if VPP is running.
+ for _ in range(retries):
+ time.sleep(1)
+ command = 'vppctl show pci'
+ ret, stdout, _ = exec_cmd(node, command, timeout=30, sudo=True)
+ if not ret and 'Connection refused' not in stdout:
+ break
+ else:
+ raise RuntimeError('VPP failed to start on host {name}'.
+ format(name=node['host']))
DUTSetup.get_service_logs(node, Constants.VPP_UNIT)
@staticmethod
@@ -69,7 +85,9 @@ class VPPUtil(object):
:param nodes: Nodes in the topology.
:type nodes: dict
"""
- DUTSetup.start_service_on_all_duts(nodes, Constants.VPP_UNIT)
+ for node in nodes.values():
+ if node['type'] == NodeType.DUT:
+ VPPUtil.start_vpp_service(node)
@staticmethod
def stop_vpp_service(node):
@@ -88,7 +106,9 @@ class VPPUtil(object):
:param nodes: Nodes in the topology.
:type nodes: dict
"""
- DUTSetup.stop_service_on_all_duts(nodes, Constants.VPP_UNIT)
+ for node in nodes.values():
+ if node['type'] == NodeType.DUT:
+ VPPUtil.stop_vpp_service(node)
@staticmethod
def verify_vpp_on_dut(node):
@@ -111,9 +131,8 @@ class VPPUtil(object):
"""
for node in nodes.values():
if node['type'] == NodeType.DUT:
- DUTSetup.start_service(node, Constants.VPP_UNIT)
- VPPUtil.vpp_show_version_verbose(node)
- VPPUtil.vpp_show_interfaces(node)
+ VPPUtil.start_vpp_service(node)
+ VPPUtil.verify_vpp_on_dut(node)
@staticmethod
def vpp_show_version_verbose(node):