Pool wait test

docker/bin/ody-stop

@@ -1,2 +1,2 @@
 #!/bin/bash
-kill $(pgrep odyssey) || (sleep 1 && kill -9 $(pgrep odyssey)) || true
+pkill odyssey || (sleep 1 && kill -9 $(pgrep odyssey)) || true

docker/entrypoint.sh

@@ -67,6 +67,7 @@ ody-stop
 /shell-test/console_role_test.sh
 /shell-test/parse_pg_options_test.sh
 /shell-test/override_pg_options_test.sh
+/shell-test/pool_size_test.sh
 ody-stop
 
 ody-start

docker/shell-test/pool_size.conf

@@ -0,0 +1,47 @@
+pid_file "/var/run/odyssey.pid"
+daemonize yes
+
+log_format "%p %t %l [%i %s] (%c) %m\n"
+
+log_to_stdout yes
+
+log_syslog no
+log_syslog_ident "odyssey"
+log_syslog_facility "daemon"
+
+log_debug yes
+log_config yes
+log_session yes
+log_query yes
+log_stats yes
+
+
+listen {
+	host "*"
+	port 6432
+	backlog 128
+}
+
+
+storage "postgres_server" {
+	type "remote"
+	host "localhost"
+	port 5432
+}
+
+database default {
+	user default {
+		authentication "none"
+		storage "postgres_server"
+		pool "transaction"
+		pool_size 10
+		pool_timeout 3000 # We expect 3 clients to do pg_sleep(1) each. Extra second to suppress falpping.
+	}
+}
+
+storage "local" {
+	type "local"
+}
+
+
+locks_dir "/tmp/odyssey"

docker/shell-test/pool_size_test.sh

@@ -0,0 +1,23 @@
+#!/bin/bash -x
+set -e
+ody-stop
+
+# We set pool size to 1 and check that 3 clients can do pg_sleep(1) at once.
+# We expect them to wait serially on 1 backend.
+
+/usr/bin/odyssey /shell-test/pool_size.conf
+
+
+for _ in $(seq 1 300); do
+    psql -h 0.0.0.0 -p 6432 -c 'select pg_sleep(0.1)' -U user1 -d postgres &
+done
+
+for _ in $(seq 1 300); do
+  wait -n || {
+    code="$?"
+    ([[ $code = "127" ]] && exit 0 || exit "$code")
+    break
+  }
+done;
+
+ody-stop