Yang Yun created HDFS-12964:
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Summary: Read a opened file timely and effectively when it's being
written by other
Key: HDFS-12964
URL: https://issues.apache.org/jira/browse/HDFS-12964
Project: Hadoop HDFS
Issue Type: Improvement
Components: hdfs-client
Reporter: Yang Yun
Priority: Critical
One thread opens a HDFS file and keep writing. Another thread opens same file
and keep reading it at the same time, also want to get the newest content of
file. that happen at in many environments, for example, talos message
transmission. And it also require the new content can be read timely and
effectively, for there maybe many tasks are working in same time.
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