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https://issues.apache.org/jira/browse/HDFS-5118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13759850#comment-13759850
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Jing Zhao commented on HDFS-5118:
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Thanks for the review, Suresh! "eclipse:eclipse" works for me in my laptop.
I've triggered another Jenkins build to verify.
bq. Are you planning to add tests for this jira in HDFS-5167
Yes. Suppose we have a metric indicating the total number of retry calls (for
entries in the NN retry cache), then we can use that metric in a unit test to
verify the total number of retry times.
> Provide testing support for DFSClient to drop RPC responses
> -----------------------------------------------------------
>
> Key: HDFS-5118
> URL: https://issues.apache.org/jira/browse/HDFS-5118
> Project: Hadoop HDFS
> Issue Type: New Feature
> Affects Versions: 3.0.0
> Reporter: Jing Zhao
> Assignee: Jing Zhao
> Attachments: HDFS-5118.000.patch, HDFS-5118.001.patch,
> HDFS-5118.002.patch, HDFS-5118.003.patch, HDFS-5118.004.patch
>
>
> We plan to add capability to DFSClient so that the client is able to
> intentionally drop responses of NameNode RPC calls according to settings in
> configuration. In this way we can do better system test for NameNode retry
> cache, especially when NN failover happens.
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