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https://issues.apache.org/jira/browse/HDFS-16088?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17373872#comment-17373872
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tomscut edited comment on HDFS-16088 at 7/3/21, 2:19 AM:
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Hi [~hexiaoqiao], I added an unit test for this. Could you please take a look?
Thanks a lot.
We forward this request to Standby and it worked fine.
!standyby-ipcserver.jpg|width=549,height=129!
was (Author: tomscut):
Hi [~hexiaoqiao], I added an unit test for this. Could you please take a look?
Thanks a lot.
We forward this request to Standby and it worked fine.
[^standyby-ipcserver.log]
> Standby NameNode process getLiveDatanodeStorageReport request to reduce
> Active load
> -----------------------------------------------------------------------------------
>
> Key: HDFS-16088
> URL: https://issues.apache.org/jira/browse/HDFS-16088
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: tomscut
> Assignee: tomscut
> Priority: Minor
> Labels: pull-request-available
> Attachments: standyby-ipcserver.jpg
>
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
> As with HDFS-13183, NameNodeConnector#getLiveDatanodeStorageReport() can also
> request to SNN to reduce the ANN load.
> There are two points that need to be mentioned:
> 1. FSNamesystem#getLiveDatanodeStorageReport() is
> OperationCategory.UNCHECKED, so we can access SNN directly.
> 2. We can share the same UT(testBalancerRequestSBNWithHA) with
> NameNodeConnector#getBlocks().
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