[ZOOKEEPER-433] getacl on root znode (/) fails

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 3.1.1
• Fix Version/s: 3.2.0
• Component/s: server
• Hadoop Flags: Reviewed
• Release Note: fixes a problem with getacl on root node "/"
• Assignee: Patrick D. Hunt
• Reporter: Patrick D. Hunt
• Created: 05/Jun/09 17:57
• Updated: 08/Jul/09 20:24
• Resolved: 18/Jun/09 01:09

Description

running a "getAcl" on the root znode "/" fails with the following:

Fri Jun 5 10:21:17 2009: 2009-06-05 10:21:17,072 - ERROR [CommitProcessor:3:FinalRequestProcessor@243] - Failed to process sessionid:0x321b16868f40003 ty
pe:getACL cxid:0x3 zxid:0xfffffffffffffffe txntype:unknown n/a
Fri Jun 5 10:21:17 2009: java.lang.NullPointerException
Fri Jun 5 10:21:17 2009: at java.util.ArrayList.<init>(ArrayList.java:131)
Fri Jun 5 10:21:17 2009: at org.apache.zookeeper.server.DataTree.getACL(DataTree.java:622)
Fri Jun 5 10:21:17 2009: at org.apache.zookeeper.server.FinalRequestProcessor.processRequest(FinalRequestProcessor.java:216)
Fri Jun 5 10:21:17 2009: at org.apache.zookeeper.server.quorum.CommitProcessor.run(CommitProcessor.java:74)
Fri Jun 5 10:21:17 2009: 2009-06-05 10:21:17,073 - ERROR [CommitProcessor:3:FinalRequestProcessor@250] - Dumping request buffer: 0x00012f

We need to support getting/setting the root acl in particular – not being able to control acls on this node makes multi-tenancy a non-starter.