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https://issues.apache.org/jira/browse/HDFS-14224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16749467#comment-16749467
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Ayush Saxena commented on HDFS-14224:
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Uploaded the separated part at HDFS-14218.Added UT for the same.
{quote} Since the EC policy of each sub-cluster's directory may be different,
we can't determine the only one EC policy. Using empty string is just my idea.
{quote}
No doubts this could be a scenario,Where multiple destinations are there and
they have different EC policies,But ideally if we are operating to router only
then it won't come up this is when we are operating at individual subcluster
level too. If we give blank in the genuine case also it won't give the
ECPolicy. If we do the ls -e command and with single dest it would be giving EC
policy but for multi it wont't.This would also create wrong perspective.
In general regarding owner and permission settings also we had this concern,but
at the router side in case of multiple results from multi dest, the flow we are
following as of now is return the first result.
Up for suggestions. :)
> RBF: NPE in GetContentSummary For GetEcPolicy in Case of Multi Dest
> -------------------------------------------------------------------
>
> Key: HDFS-14224
> URL: https://issues.apache.org/jira/browse/HDFS-14224
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Ayush Saxena
> Assignee: Ayush Saxena
> Priority: Major
> Attachments: HDFS-14224-HDFS-13891-01.patch
>
>
> Null Pointer Exception in GetContentSummary for EC policy when there are
> multiple destinations.
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