Arpit Agarwal created HDFS-7192:
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Summary: DN should ignore lazyPersist hint if the writer is not
local
Key: HDFS-7192
URL: https://issues.apache.org/jira/browse/HDFS-7192
Project: Hadoop HDFS
Issue Type: Sub-task
Components: datanode
Affects Versions: 3.0.0
Reporter: Arpit Agarwal
The DN should ignore {{allowLazyPersist}} hint to
{{DataTransferProtocol#writeBlock}} if the writer is not local.
Currently we don't restrict memory writes to local clients. For in-cluster
clients this is not an issue as single replica writes default to the local
DataNode. But clients outside the cluster can still send this hint.
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