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fix: ALTER spam в логах — DDL на qt_client_schema_state только при нужде

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Раньше ensureClientSchemaStateTable запускался на каждом цикле синка
(каждые 5 минут) и пытался ALTER TABLE, даже если все колонки уже были.
Для пользователей без DDL-прав это давало WARN-спам в каждом цикле.

Два изменения:
- schemaOnce (sync.Once) на Service: ensureClientSchemaStateTable
  вызывается не более одного раза за жизнь процесса
- columnExists() проверяет information_schema.COLUMNS перед каждым
  ALTER — если колонка уже есть, ALTER пропускается без ошибки

Если таблица уже мигрирована сервером, клиент молча пропускает все DDL.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Michael Chus
2026-06-02 13:02:40 +03:00
parent 452811f393
commit 0072f2a15f
2 changed files with 59 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

91
internal/services/sync/readiness.go
View File

@@ -76,6 +76,11 @@ func (s *Service) GetReadiness() (*SyncReadiness, error) {
)
}
s.schemaOnce.Do(func() {
if err := ensureClientSchemaStateTable(mariaDB); err != nil {
slog.Warn("qt_client_schema_state migration skipped (no DDL rights — run server migrate)", "error", err)
}
})
if err := s.reportClientSchemaState(mariaDB, now); err != nil {
slog.Warn("failed to report client schema state", "error", err)
}
@@ -141,39 +146,51 @@ func ensureClientSchemaStateTable(db *gorm.DB) error {
}
if tableExists(db, "qt_client_schema_state") {
if err := db.Exec(`
ALTER TABLE qt_client_schema_state
ADD COLUMN IF NOT EXISTS hostname VARCHAR(255) NOT NULL DEFAULT '' AFTER username
`).Error; err != nil {
return fmt.Errorf("add qt_client_schema_state.hostname: %w", err)
// Each ALTER is guarded by a column existence check so users without DDL
// rights don't get a permission error on every sync cycle — the server
// migration tool is the authoritative path for schema changes.
if !columnExists(db, "qt_client_schema_state", "hostname") {
if err := db.Exec(`
ALTER TABLE qt_client_schema_state
ADD COLUMN IF NOT EXISTS hostname VARCHAR(255) NOT NULL DEFAULT '' AFTER username
`).Error; err != nil {
return fmt.Errorf("add qt_client_schema_state.hostname: %w", err)
}
if err := db.Exec(`
ALTER TABLE qt_client_schema_state
DROP PRIMARY KEY,
ADD PRIMARY KEY (username, hostname)
`).Error; err != nil && !isDuplicatePrimaryKeyDefinition(err) {
return fmt.Errorf("set qt_client_schema_state primary key: %w", err)
}
}
if err := db.Exec(`
ALTER TABLE qt_client_schema_state
DROP PRIMARY KEY,
ADD PRIMARY KEY (username, hostname)
`).Error; err != nil && !isDuplicatePrimaryKeyDefinition(err) {
return fmt.Errorf("set qt_client_schema_state primary key: %w", err)
type colMigration struct {
column string
stmt string
}
for _, stmt := range []string{
"ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS last_sync_at DATETIME NULL AFTER app_version",
"ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS last_sync_status VARCHAR(32) NULL AFTER last_sync_at",
"ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS pending_changes_count INT NOT NULL DEFAULT 0 AFTER last_sync_status",
"ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS pending_errors_count INT NOT NULL DEFAULT 0 AFTER pending_changes_count",
"ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS configurations_count INT NOT NULL DEFAULT 0 AFTER pending_errors_count",
"ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS projects_count INT NOT NULL DEFAULT 0 AFTER configurations_count",
"ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS estimate_pricelist_version VARCHAR(128) NULL AFTER projects_count",
"ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS warehouse_pricelist_version VARCHAR(128) NULL AFTER estimate_pricelist_version",
"ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS competitor_pricelist_version VARCHAR(128) NULL AFTER warehouse_pricelist_version",
"ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS last_sync_error_code VARCHAR(128) NULL AFTER competitor_pricelist_version",
"ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS last_sync_error_text TEXT NULL AFTER last_sync_error_code",
"ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS local_pricelist_count INT NOT NULL DEFAULT 0 AFTER last_sync_error_text",
"ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS pricelist_items_count INT NOT NULL DEFAULT 0 AFTER local_pricelist_count",
"ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS components_count INT NOT NULL DEFAULT 0 AFTER pricelist_items_count",
"ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS db_size_bytes BIGINT NOT NULL DEFAULT 0 AFTER components_count",
} {
if err := db.Exec(stmt).Error; err != nil {
migrations := []colMigration{
{"last_sync_at", "ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS last_sync_at DATETIME NULL AFTER app_version"},
{"last_sync_status", "ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS last_sync_status VARCHAR(32) NULL AFTER last_sync_at"},
{"pending_changes_count", "ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS pending_changes_count INT NOT NULL DEFAULT 0 AFTER last_sync_status"},
{"pending_errors_count", "ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS pending_errors_count INT NOT NULL DEFAULT 0 AFTER pending_changes_count"},
{"configurations_count", "ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS configurations_count INT NOT NULL DEFAULT 0 AFTER pending_errors_count"},
{"projects_count", "ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS projects_count INT NOT NULL DEFAULT 0 AFTER configurations_count"},
{"estimate_pricelist_version", "ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS estimate_pricelist_version VARCHAR(128) NULL AFTER projects_count"},
{"warehouse_pricelist_version", "ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS warehouse_pricelist_version VARCHAR(128) NULL AFTER estimate_pricelist_version"},
{"competitor_pricelist_version", "ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS competitor_pricelist_version VARCHAR(128) NULL AFTER warehouse_pricelist_version"},
{"last_sync_error_code", "ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS last_sync_error_code VARCHAR(128) NULL AFTER competitor_pricelist_version"},
{"last_sync_error_text", "ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS last_sync_error_text TEXT NULL AFTER last_sync_error_code"},
{"local_pricelist_count", "ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS local_pricelist_count INT NOT NULL DEFAULT 0 AFTER last_sync_error_text"},
{"pricelist_items_count", "ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS pricelist_items_count INT NOT NULL DEFAULT 0 AFTER local_pricelist_count"},
{"components_count", "ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS components_count INT NOT NULL DEFAULT 0 AFTER pricelist_items_count"},
{"db_size_bytes", "ALTER TABLE qt_client_schema_state ADD COLUMN IF NOT EXISTS db_size_bytes BIGINT NOT NULL DEFAULT 0 AFTER components_count"},
}
for _, m := range migrations {
if columnExists(db, "qt_client_schema_state", m.column) {
continue
}
if err := db.Exec(m.stmt).Error; err != nil {
return fmt.Errorf("expand qt_client_schema_state: %w", err)
}
}
@@ -181,6 +198,17 @@ func ensureClientSchemaStateTable(db *gorm.DB) error {
return nil
}
func columnExists(db *gorm.DB, tableName, columnName string) bool {
var count int64
if err := db.Raw(`
SELECT COUNT(*) FROM information_schema.COLUMNS
WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = ? AND COLUMN_NAME = ?
`, tableName, columnName).Scan(&count).Error; err != nil {
return false
}
return count > 0
}
func tableExists(db *gorm.DB, tableName string) bool {
var count int64
// For MariaDB/MySQL, check information_schema
@@ -197,9 +225,6 @@ func (s *Service) reportClientSchemaState(mariaDB *gorm.DB, checkedAt time.Time)
if strings.EqualFold(mariaDB.Dialector.Name(), "sqlite") {
return nil
}
if err := ensureClientSchemaStateTable(mariaDB); err != nil {
return err
}
username := strings.TrimSpace(s.localDB.GetDBUser())
if username == "" {
return nil

1
internal/services/sync/service.go
View File

@@ -28,6 +28,7 @@ type Service struct {
localDB *localdb.LocalDB
directDB *gorm.DB
pricelistMu sync.Mutex // prevents concurrent pricelist syncs
schemaOnce sync.Once // ensures ensureClientSchemaStateTable runs at most once per process
}
// NewService creates a new sync service