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194
exporter/opentelemetry-exporter-otlp/src/opentelemetry/exporter/otlp/exporter.py
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# Copyright The OpenTelemetry Authors | ||
# | ||
# 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. | ||
|
||
"""OTLP Exporter""" | ||
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import logging | ||
from abc import ABC, abstractmethod | ||
from collections.abc import Mapping, Sequence | ||
from time import sleep | ||
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from backoff import expo | ||
from google.rpc.error_details_pb2 import RetryInfo | ||
from grpc import ( | ||
ChannelCredentials, | ||
RpcError, | ||
StatusCode, | ||
insecure_channel, | ||
secure_channel, | ||
) | ||
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from opentelemetry.proto.common.v1.common_pb2 import AnyValue, KeyValue | ||
from opentelemetry.proto.resource.v1.resource_pb2 import Resource | ||
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logger = logging.getLogger(__name__) | ||
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def _translate_key_values(key, value): | ||
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if isinstance(value, bool): | ||
any_value = AnyValue(bool_value=value) | ||
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elif isinstance(value, str): | ||
any_value = AnyValue(string_value=value) | ||
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elif isinstance(value, int): | ||
any_value = AnyValue(int_value=value) | ||
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elif isinstance(value, float): | ||
any_value = AnyValue(double_value=value) | ||
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elif isinstance(value, Sequence): | ||
any_value = AnyValue(array_value=value) | ||
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elif isinstance(value, Mapping): | ||
any_value = AnyValue(kvlist_value=value) | ||
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else: | ||
raise Exception( | ||
"Invalid type {} of value {}".format(type(value), value) | ||
) | ||
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return KeyValue(key=key, value=any_value) | ||
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def _get_resource_data( | ||
sdk_resource_instrumentation_library_data, resource_class, name | ||
): | ||
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resource_data = [] | ||
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for ( | ||
sdk_resource, | ||
instrumentation_library_data, | ||
) in sdk_resource_instrumentation_library_data.items(): | ||
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collector_resource = Resource() | ||
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for key, value in sdk_resource.labels.items(): | ||
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try: | ||
# pylint: disable=no-member | ||
collector_resource.attributes.append( | ||
_translate_key_values(key, value) | ||
) | ||
except Exception as error: # pylint: disable=broad-except | ||
logger.exception(error) | ||
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resource_data.append( | ||
resource_class( | ||
**{ | ||
"resource": collector_resource, | ||
"instrumentation_library_{}".format(name): [ | ||
instrumentation_library_data | ||
], | ||
} | ||
) | ||
) | ||
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return resource_data | ||
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# pylint: disable=no-member | ||
class OTLPExporterMixin(ABC): | ||
"""OTLP span/metric exporter | ||
Args: | ||
endpoint: OpenTelemetry Collector receiver endpoint | ||
credentials: ChannelCredentials object for server authentication | ||
metadata: Metadata to send when exporting | ||
""" | ||
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def __init__( | ||
self, | ||
endpoint: str = "localhost:55680", | ||
credentials: ChannelCredentials = None, | ||
metadata: tuple = None, | ||
): | ||
super().__init__() | ||
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self._metadata = metadata | ||
self._collector_span_kwargs = None | ||
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if credentials is None: | ||
self._client = self._stub(insecure_channel(endpoint)) | ||
else: | ||
self._client = self._stub(secure_channel(endpoint, credentials)) | ||
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@abstractmethod | ||
def _translate_data(self, data): | ||
pass | ||
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def _export(self, data): | ||
# expo returns a generator that yields delay values which grow | ||
# exponentially. Once delay is greater than max_value, the yielded | ||
# value will remain constant. | ||
# max_value is set to 900 (900 seconds is 15 minutes) to use the same | ||
# value as used in the Go implementation. | ||
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max_value = 900 | ||
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for delay in expo(max_value=max_value): | ||
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if delay == max_value: | ||
return self._result.FAILURE | ||
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try: | ||
self._client.Export( | ||
request=self._translate_data(data), | ||
metadata=self._metadata, | ||
) | ||
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return self._result.SUCCESS | ||
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except RpcError as error: | ||
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if error.code() in [ | ||
StatusCode.CANCELLED, | ||
StatusCode.DEADLINE_EXCEEDED, | ||
StatusCode.PERMISSION_DENIED, | ||
StatusCode.UNAUTHENTICATED, | ||
StatusCode.RESOURCE_EXHAUSTED, | ||
StatusCode.ABORTED, | ||
StatusCode.OUT_OF_RANGE, | ||
StatusCode.UNAVAILABLE, | ||
StatusCode.DATA_LOSS, | ||
]: | ||
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retry_info_bin = dict(error.trailing_metadata()).get( | ||
"google.rpc.retryinfo-bin" | ||
) | ||
if retry_info_bin is not None: | ||
retry_info = RetryInfo() | ||
retry_info.ParseFromString(retry_info_bin) | ||
delay = ( | ||
retry_info.retry_delay.seconds | ||
+ retry_info.retry_delay.nanos / 1.0e9 | ||
) | ||
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logger.debug( | ||
"Waiting %ss before retrying export of span", delay | ||
) | ||
sleep(delay) | ||
continue | ||
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if error.code() == StatusCode.OK: | ||
return self._result.SUCCESS | ||
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return self.result.FAILURE | ||
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return self._result.FAILURE | ||
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def shutdown(self): | ||
pass |
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