raajeive opened a new issue, #647: URL: https://github.com/apache/mina-sshd/issues/647
### Version 2.12.1 ### Bug description The issue is related to [Apache MINA SSHD #458](https://github.com/apache/mina-sshd/issues/458). In version 2.12.1, a singleton thread pool was introduced for the Key Exchange (KEX) message handler flushing. This change has led to a significant increase in the time taken to establish SSH connections when a single client frequently connects to multiple servers. With only one thread available for KEX, this architecture becomes a bottleneck. Our application frequently SSHs to over 10,000 servers to periodically poll specific information. Due to the single-threaded KEX, all 10,000 SSH connections now rely on the same thread, causing the average time to SSH into a server to increase. This directly impacts the application's polling frequency, leading to performance degradation. ### Actual behavior A single thread is used for KEX, leading to increased SSH time when the client handles several thousand SSH connections concurrently. ### Expected behavior Provide a configurable option to set the number of threads for KEX. ### Relevant log output _No response_ ### Other information _No response_ -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: dev-unsubscr...@mina.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@mina.apache.org For additional commands, e-mail: dev-h...@mina.apache.org
