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https://issues.apache.org/jira/browse/CASSANDRA-15980?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aleksey Yeschenko updated CASSANDRA-15980:
------------------------------------------
Reviewers: Aleksey Yeschenko
> Improve log messages for socket connection/disconnection
> --------------------------------------------------------
>
> Key: CASSANDRA-15980
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15980
> Project: Cassandra
> Issue Type: Bug
> Components: Observability/Logging
> Reporter: Jon Meredith
> Assignee: Jon Meredith
> Priority: Normal
> Fix For: 4.0-beta
>
>
> Logging for inbound SSL connections can take place before protocol
> negotiation has taken place and logs a misleading cipher that could cause
> problems for security auditing.
>
>
> {code:java}
> INFO 2020-07-03T13:57:58,380 [Messaging-EventLoop-3-1]
> org.apache.cassandra.net.InboundConnectionInitiator:242 - connection from
> peer /1.1.1.1:57899 to /2.2.2.2:7000, protocol = TLSv1.2, cipher suite =
> SSL_NULL_WITH_NULL_NULL
> {code}
>
> Instead Cassandra should log the connection & protocol, then once the cipher
> has been negotiated log the agreed upon cipher.
>
>
> If the inbound SSL connection does not present a client certificate,
> Cassandra logs this error, even if the client wasn't required to.
> {code:java}
> ERROR 2020-07-14T11:58:45,925 [Native-Transport-Requests-1]
> org.apache.cassandra.transport.ServerConnection:140 - Failed to get peer
> certificates for peer /4.3.2.1:59263
> {code}
>
> Logging the absense of verified certificates should be a concern of the
> SaslNegotiator if it requires it, and not something worth alerting the
> operator for generally. Downgrade to debug message to make investigation
> possible if needed.
>
>
> Finally, to help with logging issues related to disconnection, add a log
> statement when an instance decides it no longer needs to keep a gossip
> connection open when cleaning up connections in
> org.apache.cassandra.net.OutboundConnections.UnusedConnectionMonitor#closeUnusedSinceLastRun
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