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https://issues.apache.org/jira/browse/CASSANDRA-20072?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17897148#comment-17897148
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Stefan Miklosovic edited comment on CASSANDRA-20072 at 11/11/24 10:16 AM:
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I am not sure what exactly is your setup but these numbers seem quite
suspicious to me. Why can not a client hold a session / connect once and just
execute queries against the cluster? What driver / programming language do you
use on client side? 100 connections per second? If you also use authentication,
that means you are also hashing 100 passwords per second etc? I just dont
understand your numbers, or maybe the terminology used here is not completely
right.
was (Author: smiklosovic):
I am not sure what exactly is your setup but these numbers seems quite
suspicious to me. Why can not a client hold a session / connect once and just
execute queries against the cluster? What driver / programming language do you
use on client side? 100 connections per second? If you also use authentication,
that means you are also hashing 100 passwords per second etc? I just dont
understand your numbers, or maybe the terminology used here is not completely
right.
> Log client address when detecting unknown exception in client networking
> -------------------------------------------------------------------------
>
> Key: CASSANDRA-20072
> URL: https://issues.apache.org/jira/browse/CASSANDRA-20072
> Project: Cassandra
> Issue Type: Bug
> Components: Observability/Logging
> Reporter: Mohammad Aburadeh
> Assignee: Mohammad Aburadeh
> Priority: Urgent
> Fix For: 4.0.x, 4.1.x, 5.0.x, 5.x
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> We are getting hundreds of the below warnings in Cassandra logs:
> {code:java}
> WARN [epollEventLoopGroup-5-7] 2024-11-10 00:26:24,296
> ExceptionHandlers.java:139 - Unknown exception in client networking
> io.netty.channel.StacklessClosedChannelException: null
> at io.netty.channel.AbstractChannel.close(ChannelPromise)(Unknown
> Source)
> {code}
> This means the client dropped the connection abruptly or abnormally. The
> issue could be a network or application issue on the client side.
> Since there could be many client servers, Cassandra must log the client IP
> and the port so we can check what's the problem with that server.
> I'll attached the fix for this small change.
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