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better postgres connection pool management

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adding SetConnMaxLifetime configuration (https://golang.org/pkg/database/sql/#DB.SetConnMaxLifetime)
to enable refresh of stale connections.
This commit is contained in:
LazyDBA247-Anyvision 2021-02-15 07:45:09 +02:00
parent 0bc3a1f9e8
commit 7f458d5e78
3 changed files with 10 additions and 2 deletions
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2
weed/command/scaffold.go
View file

@ -160,6 +160,7 @@ schema = ""
sslmode = "disable"
connection_max_idle = 100
connection_max_open = 100
connection_max_lifetime_seconds = 0
[postgres2]
enabled = false
@ -181,6 +182,7 @@ schema = ""
sslmode = "disable"
connection_max_idle = 100
connection_max_open = 100
connection_max_lifetime_seconds = 0
[cassandra]
# CREATE TABLE filemeta (

5
weed/filer/postgres/postgres_store.go
View file

@ -3,6 +3,7 @@ package postgres
import (
"database/sql"
"fmt"
"time"
"github.com/chrislusf/seaweedfs/weed/filer"
"github.com/chrislusf/seaweedfs/weed/filer/abstract_sql"
@ -37,10 +38,11 @@ func (store *PostgresStore) Initialize(configuration util.Configuration, prefix
configuration.GetString(prefix+"sslmode"),
configuration.GetInt(prefix+"connection_max_idle"),
configuration.GetInt(prefix+"connection_max_open"),
configuration.GetInt(prefix+"connection_max_lifetime_seconds"),
)
}
func (store *PostgresStore) initialize(user, password, hostname string, port int, database, schema, sslmode string, maxIdle, maxOpen int) (err error) {
func (store *PostgresStore) initialize(user, password, hostname string, port int, database, schema, sslmode string, maxIdle, maxOpen, maxLifetimeSeconds int) (err error) {
store.SupportBucketTable = false
store.SqlGenerator = &SqlGenPostgres{
@ -71,6 +73,7 @@ func (store *PostgresStore) initialize(user, password, hostname string, port int
store.DB.SetMaxIdleConns(maxIdle)
store.DB.SetMaxOpenConns(maxOpen)
store.DB.SetConnMaxLifetime(time.Duration(maxLifetimeSeconds) * time.Second)
if err = store.DB.Ping(); err != nil {
return fmt.Errorf("connect to %s error:%v", sqlUrl, err)

5
weed/filer/postgres2/postgres2_store.go
View file

@ -4,6 +4,7 @@ import (
"context"
"database/sql"
"fmt"
"time"
"github.com/chrislusf/seaweedfs/weed/filer"
"github.com/chrislusf/seaweedfs/weed/filer/abstract_sql"
@ -40,10 +41,11 @@ func (store *PostgresStore2) Initialize(configuration util.Configuration, prefix
configuration.GetString(prefix+"sslmode"),
configuration.GetInt(prefix+"connection_max_idle"),
configuration.GetInt(prefix+"connection_max_open"),
configuration.GetInt(prefix+"connection_max_lifetime_seconds"),
)
}
func (store *PostgresStore2) initialize(createTable, user, password, hostname string, port int, database, schema, sslmode string, maxIdle, maxOpen int) (err error) {
func (store *PostgresStore2) initialize(createTable, user, password, hostname string, port int, database, schema, sslmode string, maxIdle, maxOpen, maxLifetimeSeconds int) (err error) {
store.SupportBucketTable = true
store.SqlGenerator = &postgres.SqlGenPostgres{
@ -74,6 +76,7 @@ func (store *PostgresStore2) initialize(createTable, user, password, hostname st
store.DB.SetMaxIdleConns(maxIdle)
store.DB.SetMaxOpenConns(maxOpen)
store.DB.SetConnMaxLifetime(time.Duration(maxLifetimeSeconds) * time.Second)
if err = store.DB.Ping(); err != nil {
return fmt.Errorf("connect to %s error:%v", sqlUrl, err)