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From "Ajith S (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8808) dfs.image.transfer.bandwidthPerSec should not apply to -bootstrapStandby
Date Thu, 06 Aug 2015 08:25:06 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8808?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14659680#comment-14659680
] 

Ajith S commented on HDFS-8808:
-------------------------------

+1 on Zhang's comment
Hi [~zhz]
if i could suggest, may be add a configuration to configure bandwidth specifically for bootstrap.??
Because i think its case basis if we want to throttle bandwidth on bootstrap.. please correct
me if i am wrong

> 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
>            Assignee: Zhe Zhang
>
> 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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