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https://issues.apache.org/jira/browse/HDFS-1457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12921067#action_12921067
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Hairong Kuang commented on HDFS-1457:
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This jira description copied Lu's
[comment|https://issues.apache.org/jira/browse/HDFS-1435?focusedCommentId=12920929&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#action_12920929]
from HDFS-1435.
> 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
>
>
> 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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