[HDFS-14439] FileNotFoundException thrown in TestEditLogRace when just add a setPermission operation

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Not A Problem
• Component/s: fs
• Assignee: star
• Reporter: star
• Created: 18/Apr/19 14:25
• Updated: 20/Apr/19 00:53
• Resolved: 20/Apr/19 00:53

Description

In TestEditLogRace.Transactions#run, add following code between mkdirs and delete.

 

fs.setPermission(dirnamePath, p);

It will be like. 

fs.mkdirs(dirnamePath);
fs.setPermission(dirnamePath, p);
fs.delete(dirnamePath, true);

then run test TestEditLogRace#testEditLogRolling, it will throw FileNotFoundException.

java.io.FileNotFoundException: cannot find /thr-291-dir-2

at org.apache.hadoop.hdfs.server.namenode.FSDirectory.resolveLastINode(FSDirectory.java:1524)
at org.apache.hadoop.hdfs.server.namenode.FSDirAttrOp.unprotectedSetPermission(FSDirAttrOp.java:264)
at org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader.applyEditLogOp(FSEditLogLoader.java:656)
at org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader.loadEditRecords(FSEditLogLoader.java:287)
at org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader.loadFSEdits(FSEditLogLoader.java:182)
at org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader.loadFSEdits(FSEditLogLoader.java:159)
at org.apache.hadoop.hdfs.server.namenode.TestEditLogRace.verifyEditLogs(TestEditLogRace.java:293)
at org.apache.hadoop.hdfs.server.namenode.TestEditLogRace.testEditLogRolling(TestEditLogRace.java:258)

It happens when verifing edit logs and finds the target dir does not exits. Any one could help figure out whether it makes sense or what makes it behaving that way?