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https://issues.apache.org/jira/browse/BEAM-3418?focusedWorklogId=86115&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-86115
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ASF GitHub Bot logged work on BEAM-3418:
----------------------------------------
Author: ASF GitHub Bot
Created on: 30/Mar/18 18:31
Start Date: 30/Mar/18 18:31
Worklog Time Spent: 10m
Work Description: tgroh commented on a change in pull request #4980:
[BEAM-3418] Support multiple SDKHarness in RunnerHarness
URL: https://github.com/apache/beam/pull/4980#discussion_r178345082
##########
File path:
runners/java-fn-execution/src/main/java/org/apache/beam/runners/fnexecution/GrpcContextHeaderAccessorProvider.java
##########
@@ -0,0 +1,69 @@
+/*
+ * 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.
+ */
+
+package org.apache.beam.runners.fnexecution;
+
+import io.grpc.Context;
+import io.grpc.Contexts;
+import io.grpc.Metadata;
+import io.grpc.Metadata.Key;
+import io.grpc.ServerCall;
+import io.grpc.ServerCall.Listener;
+import io.grpc.ServerCallHandler;
+import io.grpc.ServerInterceptor;
+
+/**
+ * A HeaderAccessorProvider which intercept the header in a GRPC request and
expose the relevant
+ * fields.
+ */
+public class GrpcContextHeaderAccessorProvider {
Review comment:
Tests? You should be able to use an `InProcessChannel` and some stub
implementation of a random service
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Issue Time Tracking
-------------------
Worklog Id: (was: 86115)
Time Spent: 4h 40m (was: 4.5h)
> Python Fnapi - Support Multiple SDK workers on a single VM
> ----------------------------------------------------------
>
> Key: BEAM-3418
> URL: https://issues.apache.org/jira/browse/BEAM-3418
> Project: Beam
> Issue Type: Improvement
> Components: sdk-py-harness
> Reporter: Ankur Goenka
> Assignee: Ankur Goenka
> Priority: Major
> Labels: performance, portability
> Time Spent: 4h 40m
> Remaining Estimate: 0h
>
> Support multiple python SDK process on a VM to fully utilize a machine.
> Each SDK Process will work in isolation and interact with Runner Harness
> independently.
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