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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Work logged] (BEAM-3874) Switch AvroIO sink default codec to Snappy
Date Tue, 20 Mar 2018 14:46:00 GMT

     [ https://issues.apache.org/jira/browse/BEAM-3874?focusedWorklogId=82287&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-82287
]

ASF GitHub Bot logged work on BEAM-3874:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 20/Mar/18 14:45
            Start Date: 20/Mar/18 14:45
    Worklog Time Spent: 10m 
      Work Description: mdvorsky opened a new pull request #4904: [BEAM-3874] Switched AvroIO
default codec to snappyCodec.
URL: https://github.com/apache/beam/pull/4904
 
 
   Snappy is much faster than deflate, although it generally compresses worse. In many cases,
the CPU savings from Snappy are worth the worse compression ratio except for very long lived
files or files transferred across expensive networks. 
   
   Snappy is also the default avro codec in Spark. 
    
   R: @jkff
   CC: @ravwojdyla 

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Issue Time Tracking
-------------------

            Worklog Id:     (was: 82287)
            Time Spent: 10m
    Remaining Estimate: 0h

> Switch AvroIO sink default codec to Snappy
> ------------------------------------------
>
>                 Key: BEAM-3874
>                 URL: https://issues.apache.org/jira/browse/BEAM-3874
>             Project: Beam
>          Issue Type: Improvement
>          Components: io-java-avro
>            Reporter: Marian Dvorsky
>            Assignee: Eugene Kirpichov
>            Priority: Minor
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> AvroIO currently uses CodecFactory.deflateCodec(6) as the default codec for writes.
> That compresses well, but is quite expensive.
> Snappy codec offers sparser, but much faster compression, and is typically a better CPU/storage
tradeoff except for very long lived files. 
> We should consider switching the default to Snappy.



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