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https://issues.apache.org/jira/browse/CASSANDRA-13607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17245140#comment-17245140
 ] 

Benjamin Lerer edited comment on CASSANDRA-13607 at 12/7/20, 11:16 AM:
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[~Marinho] Your stacktrace is a DSE stacktrace. Please raise the problem to the 
DSE support team.

[~anuragh] Based on the stacktrace it seems that something was wrong with the 
username provided to connect to the C* cluster. Now, the version that you use 
{{2.1.7}} is really old, the lastest 2.1 version is {{2.1.22}}. You should try 
upgrading to the latest version.

For information, 2.1 and 2.2 will reach EOL once 4.0 is out, which will 
probably happen beginning of 2021.


was (Author: blerer):
[~Marinho] Your stacktrace is a DSE stacktrace. Please raise the problem to DSE 
support.

[~anuragh] Based on the stacktrace it seems that something was wrong with the 
username provided to connect to the C* cluster. Now, the version that you use 
{{2.1.7}} is really old, the lastest 2.1 version is {{2.1.22}}. You should try 
upgrading to the latest version.

For information, 2.1 and 2.2 will reach EOL once 4.0 is out, which will 
probably happen beginning of 2021.

> InvalidRequestException: Key may not be empty
> ---------------------------------------------
>
>                 Key: CASSANDRA-13607
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13607
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: anuragh
>            Priority: Urgent
>             Fix For: 2.1.x
>
>
> Status=Up/Down
> |/ State=Normal/Leaving/Joining/Moving
> --  Address        Load       Tokens  Owns    Host ID                         
>       Rack
> UN  10.146.80.71   175.01 GB  256     ?       
> 2a926f37-9b37-4915-9739-d04befec4f6b  rack1
> UN  10.146.81.149  105.71 GB  256     ?       
> 79b06413-fad7-4d23-aafa-28e8f2b54400  rack1
> UN  10.146.80.56   180.43 GB  256     ?       
> b5eb237f-9edf-4963-9f2c-4e39d6af0f0a  rack1
> UN  10.146.80.62   174.89 GB  256     ?       
> a7ba177f-0f21-4f24-b6fe-77937d005498  rack1
> Here adding this node(10.146.81.149) to the ring and the seed node is 
> 10.146.80.56.
> This new node is not JMX enabled but all the other 3 are JMX enabled.
> Is the below error is due to JMX?
> RROR [SharedPool-Worker-11] 2017-06-15 07:15:46,939 Message.java:538 - 
> Unexpected exception during request; channel = [id: 0x57764a3b, 
> /10.146.144.86:47336 => /10.146.81.149:9042]
> java.lang.AssertionError: 
> org.apache.cassandra.exceptions.InvalidRequestException: Key may not be empty
>       at 
> org.apache.cassandra.auth.PasswordAuthenticator.authenticate(PasswordAuthenticator.java:125)
>  ~[apache-cassandra-2.1.7.jar:2.1.7]
>       at 
> org.apache.cassandra.auth.PasswordAuthenticator$PlainTextSaslAuthenticator.getAuthenticatedUser(PasswordAuthenticator.java:291)
>  ~[apache-cassandra-2.1.7.jar:2.1.7]
>       at 
> org.apache.cassandra.transport.messages.AuthResponse.execute(AuthResponse.java:81)
>  ~[apache-cassandra-2.1.7.jar:2.1.7]
>       at 
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:439)
>  [apache-cassandra-2.1.7.jar:2.1.7]
>       at 
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:335)
>  [apache-cassandra-2.1.7.jar:2.1.7]
>       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_60]
>       at 
> org.apache.cassandra.concurrent.AbstractTracingAwareExecutorService$FutureTask.run(AbstractTracingAwareExecutorService.java:164)
>  [apache-cassandra-2.1.7.jar:2.1.7]
>       at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105) 
> [apache-cassandra-2.1.7.jar:2.1.7]
>       at java.lang.Thread.run(Thread.java:745) [na:1.8.0_60]
> Caused by: org.apache.cassandra.exceptions.InvalidRequestException: Key may 
> not be empty
>       at 
> org.apache.cassandra.cql3.QueryProcessor.validateKey(QueryProcessor.java:197) 
> ~[apache-cassandra-2.1.7.jar:2.1.7]
>       at 
> org.apache.cassandra.cql3.statements.SelectStatement.getSliceCommands(SelectStatement.java:360)
>  ~[apache-cassandra-2.1.7.jar:2.1.7]
>       at 
> org.apache.cassandra.cql3.statements.SelectStatement.getPageableCommand(SelectStatement.java:253)
>  ~[apache-cassandra-2.1.7.jar:2.1.7]
>       at 
> org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:213)
>  ~[apache-cassandra-2.1.7.jar:2.1.7]
>       at 
> org.apache.cassandra.auth.PasswordAuthenticator.authenticate(PasswordAuthenticator.java:118)
>  ~[apache-cassandra-2.1.7.jar:2.1.7]
>       ... 12 common frames omitted



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