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authorViliam Luc <vluc@cisco.com>2022-03-18 14:02:44 +0100
committerPeter Mikus <pmikus@cisco.com>2022-03-31 08:50:23 +0000
commite2b220824914769fd9f4b245038cc31fb8425b18 (patch)
tree33a096dd9b6c9ecd0f85d10be11d835388f133a7 /resources/tools
parent58a35815c1b68fc5b9590aad0d5942b0508a63d4 (diff)
telemetry: error message handling
Change-Id: I3bc07072337d45ff24acfbb75cced3b0b052b6f5 Signed-off-by: Viliam Luc <vluc@cisco.com>
Diffstat (limited to 'resources/tools')
-rw-r--r--resources/tools/telemetry/bundle_vpp.py38
-rw-r--r--resources/tools/telemetry/constants.py37
-rw-r--r--resources/tools/telemetry/metrics.py10
3 files changed, 70 insertions, 15 deletions
diff --git a/resources/tools/telemetry/bundle_vpp.py b/resources/tools/telemetry/bundle_vpp.py
index 64c4c5e4f8..315360f63b 100644
--- a/resources/tools/telemetry/bundle_vpp.py
+++ b/resources/tools/telemetry/bundle_vpp.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2021 Cisco and/or its affiliates.
+# Copyright (c) 2022 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
@@ -20,7 +20,7 @@ import struct
import sys
from vpp_papi.vpp_papi import VPPApiClient as vpp_class
-
+from .constants import Constants
M_RUN_THREAD = (
r"Thread\s"
@@ -209,8 +209,8 @@ class BundleVpp:
try:
self.obj.connect(name=u"telemetry")
except (ConnectionRefusedError, OSError):
- getLogger(__name__).error(u"Cannot connect to VPP!")
- sys.exit(1)
+ getLogger("console_stderr").error(u"Could not connect to VPP!")
+ sys.exit(Constants.err_vpp_connect)
for command in self.code.splitlines():
api_name = u"cli_inband"
@@ -223,7 +223,11 @@ class BundleVpp:
"""
Detach from VPP.
"""
- self.obj.disconnect()
+ try:
+ self.obj.disconnect()
+ except (ConnectionRefusedError, OSError):
+ getLogger("console_stderr").error(u"Could not disconnect from VPP!")
+ sys.exit(Constants.err_vpp_disconnect)
def fetch_data(self):
"""
@@ -234,8 +238,12 @@ class BundleVpp:
papi_fn = getattr(self.obj.api, command[u"api_name"])
getLogger(__name__).info(command[u"api_args"][u"cmd"])
replies = papi_fn(**command[u"api_args"])
- except (AttributeError, IOError, struct.error) as err:
- raise AssertionError(err)
+ except (AssertionError, AttributeError, IOError, struct.error):
+ getLogger("console_stderr").error(
+ f"Failed when executing command: "
+ f"{command['api_args']['cmd']}"
+ )
+ sys.exit(Constants.err_vpp_execute)
if not isinstance(replies, list):
replies = [replies]
@@ -253,12 +261,22 @@ class BundleVpp:
Post process command reply.
"""
for command in zip(self.api_command_list, self.api_replies_list):
- self_fn = command[0][u"api_args"][u"cmd"]
+ self_fn = command[0][u"api_args"][u"cmd"].replace(u" ", u"_")
+ self_method_list = [meth for meth in dir(self)
+ if callable(getattr(self, meth)) and
+ meth.startswith('__') is False]
+ if self_fn not in self_method_list:
+ continue
try:
- self_fn = getattr(self, self_fn.replace(u" ", u"_"))
+ self_fn = getattr(self, self_fn)
self_fn(command[1].reply)
except AttributeError:
pass
+ except (KeyError, ValueError, TypeError) as e:
+ getLogger("console_stderr").error(
+ f"Failed when processing data. Error message {e}"
+ )
+ sys.exit(Constants.err_telemetry_process)
def show_interface(self, reply):
"""
@@ -441,7 +459,7 @@ class BundleVpp:
item[u"name"] = metric
labels[u"version"] = version
item[u"labels"] = labels
- item[u"value"] = 1.0
+ item[u"value"] = {}
self.serializer.serialize(
metric=metric, labels=labels, item=item
)
diff --git a/resources/tools/telemetry/constants.py b/resources/tools/telemetry/constants.py
new file mode 100644
index 0000000000..fda558b0b4
--- /dev/null
+++ b/resources/tools/telemetry/constants.py
@@ -0,0 +1,37 @@
+# Copyright (c) 2022 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Constants used in telemetry.
+
+"Constant" means a value that keeps its value since initialization. The value
+does not need to be hard coded here, but can be read from environment variables.
+"""
+
+class Constants:
+ """Constants used in telemetry.
+ 1-10: Telemetry errors
+ 11-50: VPP bundle error
+ 51-100: Linux bundle errors"""
+
+ # Failed when processing data
+ err_telemetry_process = 1
+
+ # Could not connect to VPP
+ err_vpp_connect = 11
+
+ # Could not disconnect from VPP
+ err_vpp_disconnect = 12
+
+ # Failed when executing command
+ err_vpp_execute = 13
+
diff --git a/resources/tools/telemetry/metrics.py b/resources/tools/telemetry/metrics.py
index 281760183b..7a22acfd1b 100644
--- a/resources/tools/telemetry/metrics.py
+++ b/resources/tools/telemetry/metrics.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2021 Cisco and/or its affiliates.
+# Copyright (c) 2022 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
@@ -340,7 +340,7 @@ class MetricBase:
def samples(self):
"""
- Returns samples wheter an object is parent or child.
+ Returns samples whether an object is parent or child.
:returns: List of Metric objects with values.
:rtype: list
@@ -602,9 +602,9 @@ class Info(MetricBase):
"""
Set info to the given value.
- :param amount: Value to set.
- :type amount: int or float
- :raises ValueError: If lables are overlapping.
+ :param value: Value to set.
+ :type value: int or float
+ :raises ValueError: If labels are overlapping.
"""
if self._labelname_set.intersection(value.keys()):
raise ValueError(