example for kernel die and request stuck

python/src/main/resources/grpc/Dockerfile

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+FROM python:3.6.5-slim-jessie
+
+WORKDIR /usr/src/app
+
+COPY requirements.txt ./
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+CMD [ "python", "-u", "python/ipython_server.py", "50053" ]

python/src/main/resources/grpc/python/ipython_client_OOM.py

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+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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.
+
+
+import grpc
+
+import ipython_pb2
+import ipython_pb2_grpc
+
+
+def run():
+    channel = grpc.insecure_channel('localhost:50053')
+    stub = ipython_pb2_grpc.IPythonStub(channel)
+    response = stub.execute(ipython_pb2.ExecuteRequest(code="import time\nlist = []\nfor i in range(0, 1000):\n\tlist.append(bytearray(1024 * 1000 * 50))\n\tprint(i)\n\ttime.sleep(0.5)"))
+    for r in response:
+        print("output:" + r.output)
+
+    response = stub.execute(ipython_pb2.ExecuteRequest(code="range?"))
+    for r in response:
+        print(r)
+
+if __name__ == '__main__':
+    run()

python/src/main/resources/grpc/requirements.txt

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+grpcio==1.12.1
+protobuf==3.6.1
+ipython==5.7.0
+ipykernel==4.8.2
+jupyter-client==5.2.3
+py4j==0.10.7