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https://issues.apache.org/jira/browse/HDFS-10207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15242094#comment-15242094
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Xiaoyu Yao commented on HDFS-10207:
-----------------------------------
One additional comments on the patch: backoff reconfigure is added for both
client/service/lifeline ports. This is not necessary as we never want to
backoff rpc requests on service and lifeline port. We only need to support
reconfigure backoff for client rpc port.
> Support enable Hadoop IPC backoff without namenode restart
> ----------------------------------------------------------
>
> Key: HDFS-10207
> URL: https://issues.apache.org/jira/browse/HDFS-10207
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Xiaoyu Yao
> Assignee: Xiaobing Zhou
> Attachments: HDFS-10207-HDFS-9000.000.patch,
> HDFS-10207-HDFS-9000.001.patch, HDFS-10207-HDFS-9000.002.patch,
> HDFS-10207-HDFS-9000.003.patch
>
>
> It will be useful to allow changing {{ipc.#port#.backoff.enable}} without a
> namenode restart to protect namenode from being overloaded.
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