()
| 155 | } |
| 156 | |
| 157 | func (a *initAppender) Rollback() error { |
| 158 | if a.app == nil { |
| 159 | a.head.metrics.activeAppenders.Dec() |
| 160 | return nil |
| 161 | } |
| 162 | return a.app.Rollback() |
| 163 | } |
| 164 | |
| 165 | // Appender returns a new Appender on the database. |
| 166 | func (h *Head) Appender(context.Context) storage.Appender { |