Add 'session_id' to server lost during query error msg

If multiple backend connections are lost at the same time, the same message will appear multiple times, one per backend connection that was lost during a query, this info wasn't reflected in the msg before.
sysown · Mar 12, 2024 · a9e7af8 · a9e7af8
1 parent f60df66
commit a9e7af8
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/lib/MySQL_Session.cpp b/lib/MySQL_Session.cpp
@@ -4370,11 +4370,11 @@ int MySQL_Session::handler_ProcessingQueryError_CheckBackendConnectionStatus(MyS
 		bool retry_conn=false;
 		if (myconn->server_status==MYSQL_SERVER_STATUS_SHUNNED_REPLICATION_LAG) {
 			thread->status_variables.stvar[st_var_backend_lagging_during_query]++;
-			proxy_error("Detected a lagging server during query: %s, %d\n", myconn->parent->address, myconn->parent->port);
+			proxy_error("Detected a lagging server during query: %s, %d, session_id:%u\n", myconn->parent->address, myconn->parent->port, this->thread_session_id);
 			MyHGM->p_update_mysql_error_counter(p_mysql_error_type::proxysql, myconn->parent->myhgc->hid, myconn->parent->address, myconn->parent->port, ER_PROXYSQL_LAGGING_SRV);
 		} else {
 			thread->status_variables.stvar[st_var_backend_offline_during_query]++;
-			proxy_error("Detected an offline server during query: %s, %d\n", myconn->parent->address, myconn->parent->port);
+			proxy_error("Detected an offline server during query: %s, %d, session_id:%u\n", myconn->parent->address, myconn->parent->port, this->thread_session_id);
 			MyHGM->p_update_mysql_error_counter(p_mysql_error_type::proxysql, myconn->parent->myhgc->hid, myconn->parent->address, myconn->parent->port, ER_PROXYSQL_OFFLINE_SRV);
 		}
 		if (myds->query_retries_on_failure > 0) {