Enable postgresql logging

This patch enables logging of long running queries in postgresql.

Makefile

@@ -192,6 +192,11 @@ endif
 	@echo "Getting locust master log:"
 	kubectl logs --namespace $(LOCUST_NAMESPACE) -f -l performance-test-pod-name=$(SCENARIO)-test-master | tee load-test.log
 	date --utc -Ins>$(TMP_DIR)/benchmark-after
+ifeq ($(RHDH_INSTALL_METHOD),helm)
+        oc exec rhdh-postgresql-primary-0 -n rhdh-performance -- sh -c 'cat  /var/lib/pgsql/data/userdata/log/postgresql*.log' > postgresql.log
+else
+        oc exec backstage-psql-developer-hub-0 -n rhdh-performance-olm -- sh -c 'cat  /var/lib/pgsql/data/userdata/log/postgresql*.log' > postgresql.log
+endif
 	@echo "All done!!!"
 
 ## Run the scalability test

ci-scripts/collect-results.sh

@@ -70,6 +70,7 @@ try_gather_file "${TMP_DIR}/create_group.log"
 try_gather_file "${TMP_DIR}/create_user.log"
 try_gather_file "${TMP_DIR}/get_token.log"
 try_gather_file load-test.log
+try_gather_file postgresql.log
 
 PYTHON_VENV_DIR=.venv
 

ci-scripts/rhdh-setup/deploy.sh

@@ -55,6 +55,11 @@ export KEYCLOAK_USER_PASS=${KEYCLOAK_USER_PASS:-$(mktemp -u XXXXXXXXXX)}
 export AUTH_PROVIDER="${AUTH_PROVIDER:-''}"
 export ENABLE_RBAC="${ENABLE_RBAC:-false}"
 
+export PSQL_LOG="${PSQL_LOG:-true}"
+export LOG_MIN_DURATION_STATEMENT="${LOG_MIN_DURATION_STATEMENT:-65}"
+export LOG_MIN_DURATION_SAMPLE="${LOG_MIN_DURATION_SAMPLE:-50}"
+export LOG_STATEMENT_SAMPLE_RATE="${LOG_STATEMENT_SAMPLE_RATE:-0.7}"
+
 export INSTALL_METHOD=helm
 
 TMP_DIR=$(readlink -m "${TMP_DIR:-.tmp}")
@@ -147,6 +152,7 @@ install() {
     fi
 
     backstage_install
+    psql_debug
     setup_monitoring
 }
 
@@ -284,6 +290,21 @@ install_rhdh_with_olm() {
     wait_to_start deployment "backstage-developer-hub" 300 300
 }
 
+# shellcheck disable=SC2016,SC1001,SC2086
+psql_debug() {
+    if [ "$INSTALL_METHOD" == "helm" ]; then
+        psql_db=rhdh-postgresql-primary-0
+    elif [ "$INSTALL_METHOD" == "olm" ]; then
+        psql_db=backstage-psql-developer-hub-0
+    fi
+    if ${PSQL_LOG}; then
+       oc exec "${psql_db}" -n "${RHDH_NAMESPACE}" -- sh -c "sed -i "s/^\s*#log_min_duration_statement.*/log_min_duration_statement=${LOG_MIN_DURATION_STATEMENT}/" /var/lib/pgsql/data/userdata/postgresql.conf "
+       oc exec "${psql_db}" -n "${RHDH_NAMESPACE}" -- sh -c "sed -i "s/^\s*#log_min_duration_sample.*/log_min_duration_sample=${LOG_MIN_DURATION_SAMPLE}/" /var/lib/pgsql/data/userdata/postgresql.conf "
+       oc exec "${psql_db}" -n "${RHDH_NAMESPACE}" -- sh -c "sed -i "s/^\s*#log_statement_sample_rate.*/log_statement_sample_rate=${LOG_STATEMENT_SAMPLE_RATE}/" /var/lib/pgsql/data/userdata/postgresql.conf "
+    fi
+    oc exec "${psql_db}" -n "${RHDH_NAMESPACE}" -- sh -c 'pg_ctl -D $PGDATA restart -mf'
+}
+
 setup_monitoring() {
     echo "Enabling user workload monitoring"
     rm -f config.yaml