HDFS updates the modification time of a file when the file is created.
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Key: HDFS-504
URL: https://issues.apache.org/jira/browse/HDFS-504
Project: Hadoop HDFS
Issue Type: Improvement
Components: name-node
Affects Versions: 0.20.1
Reporter: Chun Zhang
Priority: Minor
Fix For: 0.20.1
HDFS updates the modification time of a file when the file is created. We would
like to update the modification time of the file when the file is closed after
being written to. This helps HDFS Raid to detect file changes more aggressively.
Solution includes:
1. Made changes to
closeFile@/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java;
2. Added unit test to
testTimesAtClose@/org/apache/hadoop/hdfs/TestSetTimes.java.
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