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From andrewor14 <...@git.apache.org>
Subject [GitHub] spark pull request: [WIP] [SPARK-1132] Persisting Web UI through r...
Date Wed, 05 Mar 2014 01:37:49 GMT
Github user andrewor14 commented on a diff in the pull request:

    https://github.com/apache/spark/pull/42#discussion_r10284630
  
    --- Diff: core/src/main/scala/org/apache/spark/ui/UIReloader.scala ---
    @@ -0,0 +1,46 @@
    +/*
    + * 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.spark.ui
    +
    +/**
    + * Reload a persisted UI independently from a SparkContext
    + */
    +object UIReloader {
    --- End diff --
    
    Right, the purpose of UIReloader is just to present a quick example to demonstrate how
this can be done. I should make that more explicit in the comments.
    
    @pwendell and I discussed this more offline. The proposal is to extract the server logic
from SparkUI, and treat it as a handler for an existing server. This could be the server that
holds the Master UI, for example. Further, we need to figure out a way to pass the log directory
of the SparkUI to the external server, which should not be too complicated.


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