Files
seaweedfs/weed/filer/postgres2/postgres2_store.go
Chris Lu a17dca7009 fix(filer): don't disable the SQL idle connection pool when unconfigured (#9591)
* fix(filer): don't disable the SQL idle connection pool when unconfigured

The mysql/mysql2/postgres stores called SetMaxIdleConns(maxIdle)
unconditionally, so an unset connection_max_idle (0) actively kept zero
idle connections - every query opened and closed a fresh connection
instead of reusing the pool.

Only apply the value when it's set; otherwise leave database/sql's
default idle pool of 2 in place.

* comments: shorten idle-pool note

* fix(filer): default the SQL idle pool via config, keep explicit 0 honored

Apply the idle-pool default at the config layer with SetDefault instead of
guarding the SetMaxIdleConns call. An absent connection_max_idle now reads
back as 2 (pool stays on), while an explicit 0 flows through to
SetMaxIdleConns(0) so operators can still disable idle pooling on purpose.
2026-05-20 14:04:23 -07:00

126 lines
3.8 KiB
Go

// Package postgres2 provides PostgreSQL filer store implementation with bucket support
// Migrated from github.com/lib/pq to github.com/jackc/pgx for:
// - Active development and support
// - Better performance and PostgreSQL-specific features
// - Improved error handling (no more panics)
// - Built-in logging capabilities
// - Superior SSL certificate support
package postgres2
import (
"context"
"fmt"
"strconv"
"github.com/seaweedfs/seaweedfs/weed/filer"
"github.com/seaweedfs/seaweedfs/weed/filer/abstract_sql"
"github.com/seaweedfs/seaweedfs/weed/filer/postgres"
"github.com/seaweedfs/seaweedfs/weed/util"
)
var _ filer.BucketAware = (*PostgresStore2)(nil)
func init() {
filer.Stores = append(filer.Stores, &PostgresStore2{})
}
type PostgresStore2 struct {
abstract_sql.AbstractSqlStore
}
func (store *PostgresStore2) GetName() string {
return "postgres2"
}
func (store *PostgresStore2) Initialize(configuration util.Configuration, prefix string) (err error) {
// Absent key keeps a pooled default; an explicit 0 disables the idle pool.
configuration.SetDefault(prefix+"connection_max_idle", 2)
return store.initialize(
configuration.GetString(prefix+"createTable"),
configuration.GetString(prefix+"upsertQuery"),
configuration.GetBool(prefix+"enableUpsert"),
configuration.GetString(prefix+"username"),
configuration.GetString(prefix+"password"),
configuration.GetString(prefix+"hostname"),
configuration.GetInt(prefix+"port"),
configuration.GetString(prefix+"database"),
configuration.GetString(prefix+"schema"),
configuration.GetString(prefix+"sslmode"),
configuration.GetString(prefix+"sslcert"),
configuration.GetString(prefix+"sslkey"),
configuration.GetString(prefix+"sslrootcert"),
configuration.GetString(prefix+"sslcrl"),
configuration.GetBool(prefix+"pgbouncer_compatible"),
configuration.GetInt(prefix+"connection_max_idle"),
configuration.GetInt(prefix+"connection_max_open"),
configuration.GetInt(prefix+"connection_max_lifetime_seconds"),
)
}
func (store *PostgresStore2) initialize(createTable, upsertQuery string, enableUpsert bool, user, password, hostname string, port int, database, schema, sslmode, sslcert, sslkey, sslrootcert, sslcrl string, pgbouncerCompatible bool, maxIdle, maxOpen, maxLifetimeSeconds int) (err error) {
store.SupportBucketTable = true
if !enableUpsert {
upsertQuery = ""
}
store.SqlGenerator = &postgres.SqlGenPostgres{
CreateTableSqlTemplate: createTable,
DropTableSqlTemplate: `drop table "%s"`,
UpsertQueryTemplate: upsertQuery,
}
// pgx-optimized connection string with better timeouts and connection handling
sqlUrl := "connect_timeout=30"
if hostname != "" {
sqlUrl += " host=" + hostname
}
if port != 0 {
sqlUrl += " port=" + strconv.Itoa(port)
}
// SSL configuration - pgx provides better SSL support than lib/pq
if sslmode != "" {
sqlUrl += " sslmode=" + sslmode
}
if sslcert != "" {
sqlUrl += " sslcert=" + sslcert
}
if sslkey != "" {
sqlUrl += " sslkey=" + sslkey
}
if sslrootcert != "" {
sqlUrl += " sslrootcert=" + sslrootcert
}
if sslcrl != "" {
sqlUrl += " sslcrl=" + sslcrl
}
if user != "" {
sqlUrl += " user=" + user
}
adaptedSqlUrl := sqlUrl
if password != "" {
sqlUrl += " password=" + password
adaptedSqlUrl += " password=ADAPTED"
}
if database != "" {
sqlUrl += " dbname=" + database
adaptedSqlUrl += " dbname=" + database
}
if schema != "" && !pgbouncerCompatible {
sqlUrl += " search_path=" + schema
adaptedSqlUrl += " search_path=" + schema
}
db, openErr := postgres.OpenPGXDB(sqlUrl, adaptedSqlUrl, pgbouncerCompatible, maxIdle, maxOpen, maxLifetimeSeconds)
if openErr != nil {
return openErr
}
store.DB = db
if err = store.CreateTable(context.Background(), abstract_sql.DEFAULT_TABLE); err != nil {
return fmt.Errorf("init table %s: %v", abstract_sql.DEFAULT_TABLE, err)
}
return nil
}