5272a4d821
Enables tracing in the email and recommendation services, which was disabled in 316db88 because of a memory leak in the stackdriver exporter.
We fixed the leak in https://github.com/googleapis/google-cloud-python/pull/6856. The fix is included in the [0.1.10 release of opencensus-python](https://github.com/census-instrumentation/opencensus-python/releases/tag/v0.1.10).
With this diff, traces show up as expected in stackdriver while running the demo on GKE. Using an `opencensus-python` package version before `0.1.10` causes the email and recommendation services to leak memory until they OOM. Memory use is back to normal (i.e. roughly constant) using the new package version.
51 lines
1.7 KiB
Python
51 lines
1.7 KiB
Python
#!/usr/bin/python
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#
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# Copyright 2018 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import grpc
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import demo_pb2
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import demo_pb2_grpc
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from logger import getJSONLogger
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logger = getJSONLogger('emailservice-client')
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from opencensus.trace.tracer import Tracer
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from opencensus.trace.exporters import stackdriver_exporter
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from opencensus.trace.ext.grpc import client_interceptor
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try:
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exporter = stackdriver_exporter.StackdriverExporter()
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tracer = Tracer(exporter=exporter)
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tracer_interceptor = client_interceptor.OpenCensusClientInterceptor(tracer, host_port='0.0.0.0:8080')
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except:
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tracer_interceptor = client_interceptor.OpenCensusClientInterceptor()
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def send_confirmation_email(email, order):
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channel = grpc.insecure_channel('0.0.0.0:8080')
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channel = grpc.intercept_channel(channel, tracer_interceptor)
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stub = demo_pb2_grpc.EmailServiceStub(channel)
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try:
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response = stub.SendOrderConfirmation(demo_pb2.SendOrderConfirmationRequest(
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email = email,
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order = order
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))
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logger.info('Request sent.')
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except grpc.RpcError as err:
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logger.error(err.details())
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logger.error('{}, {}'.format(err.code().name, err.code().value))
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if __name__ == '__main__':
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logger.info('Client for email service.')
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