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https://issues.apache.org/jira/browse/HDFS-8808?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14638053#comment-14638053
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Gautam Gopalakrishnan commented on HDFS-8808:
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That's right, when the setting is at a non-default value. In one situation it
was set to 600KB/s which was fine for normal checkpointing but was slowing down
the {{-bootstrapStandby}}
> dfs.image.transfer.bandwidthPerSec should not apply to -bootstrapStandby
> ------------------------------------------------------------------------
>
> Key: HDFS-8808
> URL: https://issues.apache.org/jira/browse/HDFS-8808
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Gautam Gopalakrishnan
>
> The parameter {{dfs.image.transfer.bandwidthPerSec}} can be used to limit the
> speed with which the fsimage is copied between the namenodes during regular
> use. However, as a side effect, this also limits transfers when the
> {{-bootstrapStandby}} option is used. This option is often used during
> upgrades and could potentially slow down the entire workflow. The request
> here is to ensure {{-bootstrapStandby}} is unaffected by this bandwidth
> setting
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