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Posted to hdfs-issues@hadoop.apache.org by "Li Bo (JIRA)" <ji...@apache.org> on 2015/07/07 11:17:04 UTC

[jira] [Updated] (HDFS-8719) Erasure Coding: client generates too many small packets when writing parity data

     [ https://issues.apache.org/jira/browse/HDFS-8719?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Li Bo updated HDFS-8719:
------------------------
    Attachment: HDFS-8719-001.patch

> Erasure Coding: client generates too many small packets when writing parity data
> --------------------------------------------------------------------------------
>
>                 Key: HDFS-8719
>                 URL: https://issues.apache.org/jira/browse/HDFS-8719
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Li Bo
>            Assignee: Li Bo
>         Attachments: HDFS-8719-001.patch
>
>
> Typically a packet is about 64K, but when writing parity data, many small packets with size 512 bytes are generated. This may slow the write speed and increase the network IO.



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