Limit database connections (#980, #564) (#998)

* Limit database connections (#564)

- Add new options to the config file database:
      max_open_conns: 100
      max_idle_conns: 2
      conn_max_lifetime: -1
- Implement connection parameter setup on the *DB (database/sql) in internal/sqlutil/trace.go:Open()
- Propagate the values in the form of DbProperties interface via all the
  Open() and NewDatabase() functions

Signed-off-by: Tomas Jirka <tomas.jirka@email.cz>

* Fix wasm builds

* Remove file accidentally added from working tree

Co-authored-by: Tomas Jirka <tomas.jirka@email.cz>

1 files changed, 3 insertions, 2 deletions

diff --git a/appservice/storage/postgres/storage.go b/appservice/storage/postgres/storage.go
index e145eeee..475db6fc 100644
--- a/appservice/storage/postgres/storage.go
+++ b/appservice/storage/postgres/storage.go
@@ -21,6 +21,7 @@ import (
 
 	// Import postgres database driver
 	_ "github.com/lib/pq"
+	"github.com/matrix-org/dendrite/common"
 	"github.com/matrix-org/dendrite/internal/sqlutil"
 	"github.com/matrix-org/gomatrixserverlib"
 )
@@ -33,10 +34,10 @@ type Database struct {
 }
 
 // NewDatabase opens a new database
-func NewDatabase(dataSourceName string) (*Database, error) {
+func NewDatabase(dataSourceName string, dbProperties common.DbProperties) (*Database, error) {
 	var result Database
 	var err error
-	if result.db, err = sqlutil.Open("postgres", dataSourceName); err != nil {
+	if result.db, err = sqlutil.Open("postgres", dataSourceName, dbProperties); err != nil {
 		return nil, err
 	}
 	if err = result.prepare(); err != nil {