[HADOOP-10507] FsShell setfacl can throw ArrayIndexOutOfBoundsException when no perm is specified

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.4.0, 3.0.0-alpha1
• Fix Version/s: 2.6.0
• Component/s: fs
• Target Version/s: 2.6.0
• Hadoop Flags: Reviewed
• Assignee: sathish
• Reporter: Stephen Chu
• Created: 08/Apr/14 22:13
• Updated: 12/May/16 18:25
• Resolved: 10/Jul/14 17:03

Description

If users don't specify the perm of an acl when using the FsShell's setfacl command, a fatal internal error ArrayIndexOutOfBoundsException will be thrown.

[root@hdfs-nfs ~]# hdfs dfs -setfacl -m user:bob: /user/hdfs/td1
-setfacl: Fatal internal error
java.lang.ArrayIndexOutOfBoundsException: 2
	at org.apache.hadoop.fs.permission.AclEntry.parseAclEntry(AclEntry.java:285)
	at org.apache.hadoop.fs.permission.AclEntry.parseAclSpec(AclEntry.java:221)
	at org.apache.hadoop.fs.shell.AclCommands$SetfaclCommand.processOptions(AclCommands.java:260)
	at org.apache.hadoop.fs.shell.Command.run(Command.java:154)
	at org.apache.hadoop.fs.FsShell.run(FsShell.java:255)
	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
	at org.apache.hadoop.fs.FsShell.main(FsShell.java:308)
[root@hdfs-nfs ~]# 

An improvement would be if it returned something like this:

[root@hdfs-nfs ~]# hdfs dfs -setfacl -m user:bob:rww /user/hdfs/td1
-setfacl: Invalid permission in <aclSpec> : user:bob:rww
Usage: hadoop fs [generic options] -setfacl [-R] [{-b|-k} {-m|-x <acl_spec>} <path>]|[--set <acl_spec> <path>]
[root@hdfs-nfs ~]# 

Issue Links

• is broken by: HADOOP-10187 FsShell CLI: add getfacl and setfacl with minimal support for getting and setting ACLs.