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https://issues.apache.org/jira/browse/CASSANDRA-6349?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13844889#comment-13844889
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Steven Halaka commented on CASSANDRA-6349:
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Please also note that handling the protocol magic and version handshake in the
while loop allows an attacker to open a connection and not send any data,
preventing any further connections. Prior revisions handled all the handshaking
in the resulting thread where it might be more appropriate.
> IOException in MessagingService.run() causes orphaned storage server socket
> ---------------------------------------------------------------------------
>
> Key: CASSANDRA-6349
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6349
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Environment: cassandra 2.0+
> Reporter: Steven Halaka
> Assignee: Mikhail Stepura
> Fix For: 2.0.3
>
> Attachments: CASSANDRA-2.0-6349.patch
>
>
> The refactoring of reading the message header in MessagingService.run() vs
> IncomingTcpConnection seems to mishandle IOException as the loop is broken
> and MessagingService.SocketThread never seems to get reinitialized.
> To reproduce: telnet to port 7000 and send random data. This then prevents
> any new or restarting node in the cluster from handshaking with this defunct
> storage port.
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