beam-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Work logged] (BEAM-5404) Inefficient Serialization of Spanner MutationGroup in pipeline
Date Thu, 20 Sep 2018 03:05:00 GMT

     [ https://issues.apache.org/jira/browse/BEAM-5404?focusedWorklogId=145915&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-145915
]

ASF GitHub Bot logged work on BEAM-5404:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 20/Sep/18 03:04
            Start Date: 20/Sep/18 03:04
    Worklog Time Spent: 10m 
      Work Description: chamikaramj commented on issue #6407: [BEAM-5404] Use Java serialization
for MutationGroup objects.
URL: https://github.com/apache/beam/pull/6407#issuecomment-423024981
 
 
   Hi Neil,
   
   I'd like someone from Spanner team who is more familiar with this code to sign off/review
this PR. Can you please ask someone from that team to review this ?
   
   Also, I suggest adding more specific large scale performance benchmarks related to this
change to https://issues.apache.org/jira/browse/BEAM-5404 before changing the default method
of serialization.

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


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

    Worklog Id:     (was: 145915)
    Time Spent: 20m  (was: 10m)

> Inefficient Serialization of Spanner MutationGroup in pipeline
> --------------------------------------------------------------
>
>                 Key: BEAM-5404
>                 URL: https://issues.apache.org/jira/browse/BEAM-5404
>             Project: Beam
>          Issue Type: Bug
>          Components: io-java-gcp
>    Affects Versions: 2.3.0, 2.4.0, 2.5.0, 2.6.0
>            Reporter: Niel Markwick
>            Assignee: Chamikara Jayalath
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> The Cloud Spanner connector uses a custom serialization mechanism to convert MutationGroup
objects into a byte array. 
> This mechanism is very inefficient producing byte arrays approx 10x larger than simple
Java Serialization of the MutationGroup objects, which increases the resources needed by the
connector to ~40x the size of the original mutations.
> There are no obvious benefits to using this custom serialization system, as the objects
are deserialized within the pipeline itself. 



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

Mime
View raw message