Thank you for the response.
Remote psql client (application server) version is 9.2.16 and pg_lib_version function of DBD::Pg module returned version 80412. Remove connection via psql client: $ psql psql (9.2.16, server 9.2.13) Type "help" for help. postgres=# PQlibVersion function of libpq returned version 90213 at database server where 9.2.13 is running version of PostgreSQL. Could it be caused by older still installed release at database server (see below)? # yum list installed postgres\* Loaded plugins: product-id, rhnplugin, security, subscription-manager This system is receiving updates from RHN Classic or RHN Satellite. Installed Packages postgresql.x86_64 8.4.20-6.el6 @rhel-x86_64-server-6 postgresql-libs.x86_64 8.4.20-6.el6 @rhel-x86_64-server-6 postgresql-server.x86_64 8.4.20-6.el6 @rhel-x86_64-server-6 postgresql92.x86_64 9.2.13-1 PGDG.rhel6 @/postgresql92-9.2.13-1 PGDG.rhel6.x86_64 postgresql92-libs.x86_64 9.2.13-1 PGDG.rhel6 @/postgresql92-libs-9.2.13- 1PGDG.rhel6.x86_64 postgresql92-server.x86_64 9.2.13-1 PGDG.rhel6 @/postgresql92-server-9.2. 13-1PGDG.rhel6.x86_64 Regards Marek ---------- Původní zpráva ---------- Od: Tom Lane <t...@sss.pgh.pa.us> Komu: Marek Petr <ma...@seznam.cz> Datum: 27. 9. 2016 14:55:44 Předmět: Re: [GENERAL] lost synchronization with server: got message type "Z" ""Marek Petr" <ma...@seznam.cz> writes: > From time to time we receive following event from application (Adobe > Campaign - former Neolane): > PostgreSQL error: lost synchronization with server: got message type "Z", > length 0\n (iRc=-2006) Hm. > Could something else than network cause this event? We've fixed bugs with related symptoms in the past. > postgres=# select version(); > PostgreSQL 9.2.13 on x86_64-unknown-linux-gnu, compiled by gcc (GCC) 4.4.7 > 20120313 (Red Hat 4.4.7-11), 64-bit What libpq version is being used on the client side? The most recent related bugfix I can find in the 9.2 commit history was in libpq, and it came out in 9.2.8. regards, tom lane"
