[jira] [Work logged] (BEAM-5987) Spark SideInputReader performance

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/BEAM-5987?focusedWorklogId=181792&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-181792 ]

ASF GitHub Bot logged work on BEAM-5987:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 07/Jan/19 14:31
            Start Date: 07/Jan/19 14:31
    Worklog Time Spent: 10m 
      Work Description: mareksimunek commented on pull request #7091: [BEAM-5987] Spark: Share cached side inputs between tasks.
URL: https://github.com/apache/beam/pull/7091#discussion_r245671371
 
 

 ##########
 File path: runners/spark/src/main/java/org/apache/beam/runners/spark/util/SideInputStorage.java
 ##########
 @@ -0,0 +1,115 @@
+/*
+ * 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.spark.util;
+
+import com.google.common.cache.Cache;
+import com.google.common.cache.CacheBuilder;
+import java.util.Objects;
+import org.apache.beam.sdk.transforms.windowing.BoundedWindow;
+import org.apache.beam.sdk.values.PCollectionView;
+
+/**
+ * Cache deserialized side inputs for executor so every task doesnt need to deserialize them again.
+ * Side inputs are stored in {@link Cache} with weakValues so if there is no reference to a value,
+ * sideInput is garbage collected.
+ */
+public class SideInputStorage {
 
 Review comment:
   done
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 181792)
    Time Spent: 3h 10m  (was: 3h)

> Spark SideInputReader performance
> ---------------------------------
>
>                 Key: BEAM-5987
>                 URL: https://issues.apache.org/jira/browse/BEAM-5987
>             Project: Beam
>          Issue Type: Bug
>          Components: runner-spark
>    Affects Versions: 2.8.0
>            Reporter: David Moravek
>            Assignee: David Moravek
>            Priority: Major
>             Fix For: 2.9.0
>
>         Attachments: Screen Shot 2018-11-06 at 13.05.36.png
>
>          Time Spent: 3h 10m
>  Remaining Estimate: 0h
>
> We did some profiling of a spark job and 90% of the application time was spent on side input deserialization.
> For spark, an easy fix is to cache materialized side inputs per bundle. This improved running time of the profiled job from 3 hours to 30 minutes.



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