[MXS-4429] Many "Unknown prepared statement handler" warnings after upgrade to 6.4 Created: 2022-12-06  Updated: 2023-03-09  Resolved: 2023-03-08

Status: Closed
Project: MariaDB MaxScale
Component/s: Protocol
Affects Version/s: 6.4.3
Fix Version/s: N/A

Type: Bug Priority: Major
Reporter: Hartmut Holzgraefe Assignee: Hartmut Holzgraefe
Resolution: Cannot Reproduce Votes: 2
Labels: None

Issue Links:
Relates
relates to MXS-4062 Got strange warning messages | Warnin... Closed
Sprint: MXS-SPRINT-172, MXS-SPRINT-173, MXS-SPRINT-174, MXS-SPRINT-175, MXS-SPRINT-176, MXS-SPRINT-177, MXS-SPRINT-178

 Description   

After an upgrade from Maxscale 2.5.15 to 6.4.3 a lot of warnings (almost every second) of the form

"warning: (13283) (node4); Unknown prepared statement handler (0) given to MaxScale for COM_STMT_CLOSE by 'user'@'host'

are being logged all of a sudden.

The application side uses MariaDB Connector/JDBC version 2.5.3



 Comments   
Comment by Diego Dupin [ 2022-12-19 ]

Could you indicate the connection string you use, to help identify if that might be maxscale or connector related ?

Comment by Chris Calender (Inactive) [ 2023-03-08 ]

Closing as "Cannot Reproduce" since it cannot be reproduced and no further feedback has been provided after multiple requests.

Comment by markus makela [ 2023-03-09 ]

Could be caused by MXS-4552.

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