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https://issues.apache.org/jira/browse/BEAM-8335?focusedWorklogId=328790&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-328790
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ASF GitHub Bot logged work on BEAM-8335:
----------------------------------------
Author: ASF GitHub Bot
Created on: 15/Oct/19 21:05
Start Date: 15/Oct/19 21:05
Worklog Time Spent: 10m
Work Description: rohdesamuel commented on pull request #9720:
[BEAM-8335] Add initial modules for interactive streaming support
URL: https://github.com/apache/beam/pull/9720#discussion_r335177110
##########
File path: model/fn-execution/src/main/proto/beam_interactive_api.proto
##########
@@ -0,0 +1,106 @@
+/*
+ * 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.
+ */
+
+/*
+ * Protocol Buffers describing a service that can be used in conjunction with
+ * the TestStream class in order to control a pipeline remotely.
+ */
+
+syntax = "proto3";
+
+package org.apache.beam.model.fn_execution.v1;
+
+option go_package = "fnexecution_v1";
+option java_package = "org.apache.beam.model.fnexecution.v1";
+option java_outer_classname = "BeamInteractiveApi";
+
+import "beam_runner_api.proto";
+import "google/protobuf/timestamp.proto";
+
+service InteractiveService {
+
+ // A TestStream will request for events using this RPC.
+ rpc Events(EventsRequest) returns (stream EventsResponse) {}
+
+ rpc Start (StartRequest) returns (StartResponse) {}
Review comment:
We need a GRPC to simultaneously allow for streaming of events to the
TestStream and for user interactivity in a portable way. When the TestStream is
implemented in the FnApiRunner, there will be a hard container boundary to both
the runner and worker that needs to be crossed with some IPC. GRPC is the best
way for that, currently.
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Issue Time Tracking
-------------------
Worklog Id: (was: 328790)
Time Spent: 2h 40m (was: 2.5h)
> Add streaming support to Interactive Beam
> -----------------------------------------
>
> Key: BEAM-8335
> URL: https://issues.apache.org/jira/browse/BEAM-8335
> Project: Beam
> Issue Type: Improvement
> Components: runner-py-interactive
> Reporter: Sam Rohde
> Assignee: Sam Rohde
> Priority: Major
> Time Spent: 2h 40m
> Remaining Estimate: 0h
>
> This issue tracks the work items to introduce streaming support to the
> Interactive Beam experience. This will allow users to:
> * Write and run a streaming job in IPython
> * Automatically cache records from unbounded sources
> * Add a replay experience that replays all cached records to simulate the
> original pipeline execution
> * Add controls to play/pause/stop/step individual elements from the cached
> records
> * Add ability to inspect/visualize unbounded PCollections
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