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https://issues.apache.org/jira/browse/HDFS-7845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14345372#comment-14345372
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Charles Lamb commented on HDFS-7845:
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bq. Charles Lamb did some tests with a block report and got around 50% (if I'm
remembering correctly?) Charles Lamb, can you comment on whether those tests
were done with vints or regular integers?
Yes, 50% is about what I saw. Those were done on the array of longs, not vints,
using plain lz4.
> Compress block reports
> ----------------------
>
> Key: HDFS-7845
> URL: https://issues.apache.org/jira/browse/HDFS-7845
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Affects Versions: HDFS-7836
> Reporter: Colin Patrick McCabe
> Assignee: Charles Lamb
>
> We should optionally compress block reports using a low-cpu codec such as lz4
> or snappy.
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