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From fhueske <...@git.apache.org>
Subject [GitHub] flink pull request: [FLINK-2363] [docs] First part of internals - ...
Date Wed, 15 Jul 2015 09:39:24 GMT
Github user fhueske commented on a diff in the pull request:

    --- Diff: docs/internals/through_stack.md ---
    @@ -0,0 +1,181 @@
    +title:  "From Program to Result: A Dive through Stack and Execution"
    +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
    +KIND, either express or implied.  See the License for the
    +specific language governing permissions and limitations
    +under the License.
    +This page explains what happens when you execute a Flink program (streaming or streaming).
    +It covers the complete life cycle, from <emph>client-side pre-flight</emph>,
to <emph>JobManager</emph>,
    +and <emph>TaskManager</emph>.
    +Please refer to the [Overview Page](../index.html) for a high-level overview of the processes
and the stack.
    +* This will be replaced by the TOC
    +## Batch API: DataSets to JobGraph
    +## Streaming API: DataStreams to JobGraph
    +## Client: Submitting a Job, Receiving Statistics & Results
    +## JobManager: Receiving and Starting a Job
    +parallel operator instance
    +execution attempts
    +## TaskManager: Running Tasks
    +The *{% gh_link flink-runtime/src/main/scala/org/apache/flink/runtime/taskmanager/TaskManager.scala
"TaskManager" %}*
    +is the worker process in Flink. It runs the *{% gh_link flink-runtime/src/main/java/org/apache/flink/runtime/taskmanager/Task.java
"Tasks" %}*,
    +which execute a parallel operator instance.
    +The TaskManager itself is an Akka actor and has many utility components, such as:
    + - The *{% gh_link flink-runtime/src/main/java/org/apache/flink/runtime/io/network/NetworkEnvironment.java
"NetworkEnvironment" %}*, which takes care of all data exchanges (streamed and batched) between
TaskManagers. Cached data sets in Flink are also cached streams, to the network environment
is responsible for that as well.
    --- End diff --
    Last sentence should be rephrased.

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