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https://issues.apache.org/jira/browse/HDFS-1457?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lu Yilei updated HDFS-1457:
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Attachment: checkpoint-limitandcompress.patch
If the fsimage is very big. The network is full in a short time when
SeconaryNamenode do checkpoint, leading to Jobtracker access Namenode to get
relevant file data to fail in job initialization phase. So we limit
transmission speed and compress transmission to resolve the problem
LZO compression codec is not supported in Hadoop standard package. So default
copression is GzipCodec.
> Limit transmission rate when transfering image between primary and secondary
> NNs
> --------------------------------------------------------------------------------
>
> Key: HDFS-1457
> URL: https://issues.apache.org/jira/browse/HDFS-1457
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: name-node
> Affects Versions: 0.22.0
> Reporter: Hairong Kuang
> Fix For: 0.22.0
>
> Attachments: checkpoint-limitandcompress.patch
>
>
> If the fsimage is very big. The network is full in a short time when
> SeconaryNamenode do checkpoint, leading to Jobtracker access Namenode to get
> relevant file data to fail in job initialization phase. So we limit
> transmission speed and compress transmission to resolve the problem.
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