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https://issues.apache.org/jira/browse/CASSANDRA-12813?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Alex Petrov updated CASSANDRA-12813:
------------------------------------
         Reviewer: Sam Tunnicliffe
    Fix Version/s: 3.x
                   3.0.x
                   4.0
           Status: Patch Available  (was: Open)

It was quite simple to reproduce the issue: start fresh node first, then start 
the node upgraded from 2.1 (with legacy credentials table), wait for tables to 
settle and try to authenticate. 

Since we can not know when exactly the credentials table can be initialised, we 
can simply add a check for if the select statement is still null and initialise 
it then.

|[3.0 |https://github.com/ifesdjeen/cassandra/tree/12813-3.0] 
|[utest|https://cassci.datastax.com/view/Dev/view/ifesdjeen/job/ifesdjeen-12813-3.0-testall/]
 
|[dtest|https://cassci.datastax.com/view/Dev/view/ifesdjeen/job/ifesdjeen-12813-3.0-dtest/]
 |
|[3.X |https://github.com/ifesdjeen/cassandra/tree/12813-3.X] 
|[utest|https://cassci.datastax.com/view/Dev/view/ifesdjeen/job/ifesdjeen-12813-3.X-testall/]
 
|[dtest|https://cassci.datastax.com/view/Dev/view/ifesdjeen/job/ifesdjeen-12813-3.X-dtest/]
 |
|[trunk|https://github.com/ifesdjeen/cassandra/tree/12813-trunk] 
|[utest|https://cassci.datastax.com/view/Dev/view/ifesdjeen/job/ifesdjeen-12813-trunk-testall/]
 
|[dtest|https://cassci.datastax.com/view/Dev/view/ifesdjeen/job/ifesdjeen-12813-trunk-dtest/]
 |

Please note that 3.x/trunk patch is a slightly different (had to merge names 
and method positions).

> NPE in auth for bootstrapping node
> ----------------------------------
>
>                 Key: CASSANDRA-12813
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12813
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Charles Mims
>            Assignee: Alex Petrov
>             Fix For: 4.0, 3.0.x, 3.x
>
>
> {code}
> ERROR [SharedPool-Worker-1] 2016-10-19 21:40:25,991 Message.java:617 - 
> Unexpected exception during request; channel = [id: 0x15eb017f, /<public IP 
> omitted>:40869 => /10.0.0.254:9042]
> java.lang.NullPointerException: null
>       at 
> org.apache.cassandra.auth.PasswordAuthenticator.doAuthenticate(PasswordAuthenticator.java:144)
>  ~[apache-cassandra-3.0.9.jar:3.0.9]
>       at 
> org.apache.cassandra.auth.PasswordAuthenticator.authenticate(PasswordAuthenticator.java:86)
>  ~[apache-cassandra-3.0.9.jar:3.0.9]
>       at 
> org.apache.cassandra.auth.PasswordAuthenticator.access$100(PasswordAuthenticator.java:54)
>  ~[apache-cassandra-3.0.9.jar:3.0.9]
>       at 
> org.apache.cassandra.auth.PasswordAuthenticator$PlainTextSaslAuthenticator.getAuthenticatedUser(PasswordAuthenticator.java:182)
>  ~[apache-cassandra-3.0.9.jar:3.0.9]
>       at 
> org.apache.cassandra.transport.messages.AuthResponse.execute(AuthResponse.java:78)
>  ~[apache-cassandra-3.0.9.jar:3.0.9]
>       at 
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:513)
>  [apache-cassandra-3.0.9.jar:3.0.9]
>       at 
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:407)
>  [apache-cassandra-3.0.9.jar:3.0.9]
>       at 
> io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
>  [netty-all-4.0.23.Final.jar:4.0.23.Final]
>       at 
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
>  [netty-all-4.0.23.Final.jar:4.0.23.Final]
>       at 
> io.netty.channel.AbstractChannelHandlerContext.access$700(AbstractChannelHandlerContext.java:32)
>  [netty-all-4.0.23.Final.jar:4.0.23.Final]
>       at 
> io.netty.channel.AbstractChannelHandlerContext$8.run(AbstractChannelHandlerContext.java:324)
>  [netty-all-4.0.23.Final.jar:4.0.23.Final]
>       at 
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
> [na:1.8.0_101]
>       at 
> org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:164)
>  [apache-cassandra-3.0.9.jar:3.0.9]
>       at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105) 
> [apache-cassandra-3.0.9.jar:3.0.9]
>       at java.lang.Thread.run(Thread.java:745) [na:1.8.0_101]
> {code}
> I have a node that has been joining for around 24 hours.  My application is 
> configured with the IP address of the joining node in the list of nodes to 
> connect to (ruby driver), and I have been getting around 200 events of this 
> NPE per hour.  I removed the IP of the joining node from the list of nodes 
> for my app to connect to and the errors stopped.



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