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From Alex Kozlov <ale...@gmail.com>
Subject Yammer Dropwizard and Kerberos
Date Thu, 15 Jan 2015 18:42:59 GMT
I am having problems using Yammer Dropwizard (http://dropwizard.io/) with
secure (Kerberos) connection to HBase: whenever I put the dropwizard jar on
the classpath the HBase connection fails.

One the client:

*DEBUG [2015-01-14 00:29:35,765]
org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher:
hconnection-0x30b9eadd-0x24ad2af4bfb21d2,
quorum=cluster3-srv6:2181,cluster3-srv1:2181,cluster3-e8:2181,
baseZNode=/hbase Received ZooKeeper Event, type=None,
state=SaslAuthenticated, path=null*
*INFO  [2015-01-14 00:29:35,926]
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation:
getMaster attempt 1 of 35 failed; retrying after sleep of 100,
exception=com.google.protobuf.ServiceException: java.io.IOException:
Unexpected closed connection*
*INFO  [2015-01-14 00:29:36,031]
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation:
getMaster attempt 2 of 35 failed; retrying after sleep of 200,
exception=com.google.protobuf.ServiceException: java.io.IOException: Call
to cluster3-srv1.e8sec.com/10.10.80.71:60000
<http://cluster3-srv1.e8sec.com/10.10.80.71:60000> failed on local
exception: java.io.EOFException*

On the server:

*RpcServer.listener,port=60000: count of bytes read: 0*
*org.apache.hadoop.hbase.security.AccessDeniedException: Authentication is
required*
* at
org.apache.hadoop.hbase.ipc.RpcServer$Connection.readAndProcess(RpcServer.java:1460)*
* at
org.apache.hadoop.hbase.ipc.RpcServer$Listener.doRead(RpcServer.java:802)*
* at
org.apache.hadoop.hbase.ipc.RpcServer$Listener$Reader.doRunLoop(RpcServer.java:593)*
* at
org.apache.hadoop.hbase.ipc.RpcServer$Listener$Reader.run(RpcServer.java:568)*
* at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)*
* at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)*
* at java.lang.Thread.run(Thread.java:745)*

The weird thing is that the same code works w/o the jar on the classpath.
It appears something in the dropwizard code static initialization is
breaking Kerberos authentication.  Has anyone seen this problem before?

Thanks,

-- 
Alex Kozlov
(408) 507-4987
(408) 830-9982 fax
(650) 887-2135 efax
alexvk@gmail.com

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