Unable to parse unknown SET query from client 127.0.0.1:45954. Setting lock_hostgroup. Please report a bug for future enhancements:SET PROFILING = 1

[giveup]

This is the place to report a reproducible bug, documentation error or feature request for ProxySQL.

Support questions will not be answered here. For community support, use the Google forum: https://groups.google.com/forum/#!forum/proxysql

• Note that due to time constraints ProxySQL engineers may be slow to respond to forum posts
• For information on paid support contracts: https://proxysql.com/services/support/

If you are submitting a reproducible bug report, please provide:

• A clear description of the issue

Unable to parse unknown SET query from client 127.0.0.1:45954. Setting lock_hostgroup. Please report a bug for future enhancements:SET PROFILING = 1

• ProxySQL version

2025-07-31 14:34:16 [INFO] Using OpenSSL version: OpenSSL 3.5.1 1 Jul 2025
ProxySQL version 3.0.1-420-g2c26a42, codename Truls

• OS version

CentOS Stream 9

• The steps to reproduce the issue

I don’t know how to reproduce it; I just found it in the logs.

• The full ProxySQL error log (default location: /var/lib/proxysql/proxysql.log)

2025-07-31 11:38:54 MySQL_Thread.cpp:3899:ProcessAllSessions_Healthy0(): [WARNING] Closing unhealthy client connection 127.0.0.1:55110
2025-07-31 11:39:24 MySQL_Thread.cpp:3899:ProcessAllSessions_Healthy0(): [WARNING] Closing unhealthy client connection 127.0.0.1:39676
2025-07-31 11:39:27 MySQL_Session.cpp:7918:unable_to_parse_set_statement(): [WARNING] Unable to parse unknown SET query from client 127.0.0.1:45954. Setting lock_hostgroup. Please report a bug for future enhancements:SET PROFILING = 1
2025-07-31 11:41:42 MySQL_Thread.cpp:3899:ProcessAllSessions_Healthy0(): [WARNING] Closing unhealthy client connection 127.0.0.1:38848
2025-07-31 11:49:42 MySQL_Thread.cpp:3899:ProcessAllSessions_Healthy0(): [WARNING] Closing unhealthy client connection 127.0.0.1:34648

If this is a crashing bug, please also include:

• The package used to install ProxySQL
• The compressed proxysql binary
• The compressed core dump (Note: if you're worried it may contain sensitive data, please contact us for information on sharing it securely: https://proxysql.com/contact-us/)

If the above information is not provided, this issue is likely to be closed.

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Thank you!