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https://issues.apache.org/jira/browse/HDFS-14215?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16749865#comment-16749865
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Surendra Singh Lilhore commented on HDFS-14215:
-----------------------------------------------
Thanks [~ayushtkn] for the patch.
# Pls check the nameservice set size before using it. Better add assert logic
for set size.
{code}
+ Set<FederationNamespaceInfo> nss = namenodeResolver.getNamespaces();
+ return (FsServerDefaults) rpcClient.invokeSingle(nss.iterator().next(),
+ method);
{code}
# Pls check the {{DFSClient#getServerDefaults()}} cache logic. With cache we
can avoid extra RPC calls.
> RBF: GetServerDefaults and GetStoragePolicies are dependent on Availability
> of Default NS
> -----------------------------------------------------------------------------------------
>
> Key: HDFS-14215
> URL: https://issues.apache.org/jira/browse/HDFS-14215
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Ayush Saxena
> Assignee: Ayush Saxena
> Priority: Major
> Attachments: HDFS-14215-HDFS-13891-01.patch,
> HDFS-14215-HDFS-13891-02.patch
>
>
> GetServerDefaults and GetStoragePolicies fetches from Default NS.Thus is
> dependent on the availability of Default NS.
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