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https://issues.apache.org/jira/browse/HDFS-17087?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17743384#comment-17743384
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ASF GitHub Bot commented on HDFS-17087:
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haiyang1987 opened a new pull request, #5845:
URL: https://github.com/apache/hadoop/pull/5845
### Description of PR
https://issues.apache.org/jira/browse/HDFS-17087
Current DataXceiver#readBlock doesn't throttler, maybe we can support
throttle for reading block satisfied catering for specific scenarios.
Default read throttler value is still null.
> Add Throttler for datanode reading block
> -----------------------------------------
>
> Key: HDFS-17087
> URL: https://issues.apache.org/jira/browse/HDFS-17087
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Haiyang Hu
> Assignee: Haiyang Hu
> Priority: Major
>
> DataXceiver#readBlock code is:
> {code:java}
> ...
> read = blockSender.sendBlock(out, baseStream, null); // send data
> ..
> {code}
> Current DataXceiver#readBlock doesn't throttler, maybe we can support
> throttle for reading block satisfied catering for specific scenarios.
> Default read throttler value is still null.
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