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https://issues.apache.org/jira/browse/HDFS-13776?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16610897#comment-16610897
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Íñigo Goiri commented on HDFS-13776:
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Thanks [~dibyendu_hadoop] for [^HDFS-13776-003.patch].
Integrating with SPS is very valuable and surfacing to the Router can be pretty
powerful.
A few comments:
* I think we should tackle the checkstyles.
* In {{RouterStoragePolicy}}, we should be consistent with other like
{{ErasureCoding}} and make the javadoc comments in the fields as one liners
(e.g., {{/** RPC server to receive client calls. */}}).
* We should add a javadoc to {{MiniRouterDFSCluster#setStorageTypes()}}.
* What happens if {{storageTypes}} is left to null? I'm guessing MiniDFSCluster
behaves correctly.
* Can we add a comment in {{testProxyGetAndUnsetStoragePolicy()}} explaining
why we look for a policy without copy on create?
* In {{TestRouterRpc#testProxyGetAndUnsetStoragePolicy()}} we should also add
one check to compare with the namenode output; for example, we could do the
{{getStoragePolicies()}} or {{getStoragePolicy()}}. The rest of the class does
such checks.
* A new unit test for the {{StoragePolicySatisfier}} makes it easier to follow
but it also brings the new creation of a {{MiniRouterDFSCluster}}
(surprisingly, this new test is only 11 seconds to run, but much slower than
the others with <1 sec). Is it simple to add it to {{TestRouterRpc}}?
Otherwise, 11 seconds is good enough.
* In {{testStoragePolicySatisfier()}} can we compare with the NN outputs?
> RBF: Add Storage policies related ClientProtocol APIs
> -----------------------------------------------------
>
> Key: HDFS-13776
> URL: https://issues.apache.org/jira/browse/HDFS-13776
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Dibyendu Karmakar
> Assignee: Dibyendu Karmakar
> Priority: Major
> Attachments: HDFS-13776-000.patch, HDFS-13776-001.patch,
> HDFS-13776-002.patch, HDFS-13776-003.patch
>
>
> Currently unsetStoragePolicy and getStoragePolicy are not implemented in
> RouterRpcServer.
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