[HDFS-11000] webhdfs PUT does not work if requests are routed to call queue.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.8.0, 3.0.0-alpha2
• Target Version/s: 2.8.0
• Hadoop Flags: Reviewed
• Assignee: Kihwal Lee
• Reporter: Kihwal Lee
• Created: 12/Oct/16 21:33
• Updated: 13/Oct/16 14:07
• Resolved: 13/Oct/16 14:03

Description

If webhdfs calls are routed to ipc call queue, PUT does not work.

I think this is what we got when we tried HDFS-10789 on branch-2.7 internally last year.

WARN resources.ExceptionHandler: INTERNAL_SERVER_ERROR
java.lang.NullPointerException
        at org.apache.hadoop.hdfs.server.namenode.web.resources.NamenodeWebHdfsMethods.redirectURI(NamenodeWebHdfsMethods.java:299)
        at org.apache.hadoop.hdfs.server.namenode.web.resources.NamenodeWebHdfsMethods.put(NamenodeWebHdfsMethods.java:495)
        at org.apache.hadoop.hdfs.server.namenode.web.resources.NamenodeWebHdfsMethods.access$100(NamenodeWebHdfsMethods.java:100)
        at org.apache.hadoop.hdfs.server.namenode.web.resources.NamenodeWebHdfsMethods$2.call(NamenodeWebHdfsMethods.java:449)
        at org.apache.hadoop.hdfs.server.namenode.web.resources.NamenodeWebHdfsMethods$2.call(NamenodeWebHdfsMethods.java:446)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at org.apache.hadoop.ipc.Server$ExternalCall.run(Server.java:722)
        at org.apache.hadoop.ipc.Server$ExternalCall.run(Server.java:711)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:422)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1680)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2247

Sorry, we should have included this in HDFS-10789.

Issue Links

• is related to: HDFS-10789 Route webhdfs through the RPC call queue