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From "Staffan Friberg (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-9260) Improve performance and GC friendliness of startup and FBRs
Date Fri, 22 Jan 2016 21:36:40 GMT

     [ https://issues.apache.org/jira/browse/HDFS-9260?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Staffan Friberg updated HDFS-9260:
----------------------------------
    Attachment: HDFS-9260.012.patch

> Improve performance and GC friendliness of startup and FBRs
> -----------------------------------------------------------
>
>                 Key: HDFS-9260
>                 URL: https://issues.apache.org/jira/browse/HDFS-9260
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode, namenode, performance
>    Affects Versions: 2.7.1
>            Reporter: Staffan Friberg
>            Assignee: Staffan Friberg
>         Attachments: FBR processing.png, HDFS Block and Replica Management 20151013.pdf,
HDFS-7435.001.patch, HDFS-7435.002.patch, HDFS-7435.003.patch, HDFS-7435.004.patch, HDFS-7435.005.patch,
HDFS-7435.006.patch, HDFS-7435.007.patch, HDFS-9260.008.patch, HDFS-9260.009.patch, HDFS-9260.010.patch,
HDFS-9260.011.patch, HDFS-9260.012.patch, HDFSBenchmarks.zip, HDFSBenchmarks2.zip
>
>
> This patch changes the datastructures used for BlockInfos and Replicas to keep them sorted.
This allows faster and more GC friendly handling of full block reports.
> Would like to hear peoples feedback on this change.



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