Hello, One of our clients running our LMS on top of PostgreSQL 13.1 created a ticket with these messages: 2023-09-30 16:50:50.951 CEST [18117] ERROR: deadlock detected 2023-09-30 16:50:50.951 CEST [18117] DETAIL: Process 18117 waits for ShareLock on transaction 150396154; blocked by process 18187. Process 18187 waits for ShareLock on transaction 150396155; blocked by process 18117. Process 18117: fetch hc_d03geb Process 18187: fetch hc_d02ben 2023-09-30 16:50:50.951 CEST [18117] HINT: See server log for query details. 2023-09-30 16:50:50.951 CEST [18117] CONTEXT: while locking tuple (38,57) in relation "d03geb" 2023-09-30 16:50:50.951 CEST [18117] STATEMENT: fetch hc_d03geb The shown PIDs for sure are the ones of the Pos backend proc (on Linux). Is there any chance to investigate it further? Thanks matthias -- Matthias Apitz, ✉ guru@xxxxxxxxxxx, http://www.unixarea.de/ +49-176-38902045 Public GnuPG key: http://www.unixarea.de/key.pub
