[ https://issues.apache.org/jira/browse/HDFS-15446?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Stephen O'Donnell updated HDFS-15446: ------------------------------------- Attachment: HDFS-15446.002.patch > CreateSnapshotOp fails during edit log loading for /.reserved/raw/path with > error java.io.FileNotFoundException: Directory does not exist: > /.reserved/raw/path > --------------------------------------------------------------------------------------------------------------------------------------------------------------- > > Key: HDFS-15446 > URL: https://issues.apache.org/jira/browse/HDFS-15446 > Project: Hadoop HDFS > Issue Type: Bug > Components: hdfs > Affects Versions: 3.2.0, 3.3.0 > Reporter: Srinivasu Majeti > Assignee: Stephen O'Donnell > Priority: Major > Labels: reserved-word, snapshot > Attachments: HDFS-15446.001.patch, HDFS-15446.002.patch > > > After allowing snapshot creation for a path say /app-logs , when we try to > create snapshot on > /.reserved/raw/app-logs , its successful with snapshot creation but later > when Standby Namenode is restarted and tries to load the edit record > OP_CREATE_SNAPSHOT , we see it failing and Standby Namenode shuts down with > an exception "ava.io.FileNotFoundException: Directory does not exist: > /.reserved/raw/app-logs" . > Here are the steps to reproduce : > {code:java} > # hdfs dfs -ls /.reserved/raw/ > Found 15 items > drwxrwxrwt - yarn hadoop 0 2020-06-29 10:27 > /.reserved/raw/app-logs > drwxr-xr-x - hive hadoop 0 2020-06-29 10:29 /.reserved/raw/prod > ++++++++++++++ > [root@c3230-node2 ~]# hdfs dfsadmin -allowSnapshot /app-logs > Allowing snapshot on /app-logs succeeded > [root@c3230-node2 ~]# hdfs dfsadmin -allowSnapshot /prod > Allowing snapshot on /prod succeeded > ++++++++++++++ > # hdfs lsSnapshottableDir > drwxrwxrwt 0 yarn hadoop 0 2020-06-29 10:27 1 65536 /app-logs > drwxr-xr-x 0 hive hadoop 0 2020-06-29 10:29 1 65536 /prod > ++++++++++++++ > [root@c3230-node2 ~]# hdfs dfs -createSnapshot /.reserved/raw/app-logs testSS > Created snapshot /.reserved/raw/app-logs/.snapshot/testSS > {code} > Exception we see in Standby namenode while loading the snapshot creation edit > record. > {code:java} > 2020-06-29 10:33:25,488 ERROR namenode.NameNode (NameNode.java:main(1715)) - > Failed to start namenode. > java.io.FileNotFoundException: Directory does not exist: > /.reserved/raw/app-logs > at > org.apache.hadoop.hdfs.server.namenode.INodeDirectory.valueOf(INodeDirectory.java:60) > at > org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotManager.getSnapshottableRoot(SnapshotManager.java:259) > at > org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotManager.createSnapshot(SnapshotManager.java:307) > at > org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader.applyEditLogOp(FSEditLogLoader.java:772) > at > org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader.loadEditRecords(FSEditLogLoader.java:257) > {code} -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org