Add todo

pageserver/src/tenant/layer_map.rs

@@ -429,6 +429,9 @@ impl LayerMap {
     /// This should be called when the corresponding file on disk has been deleted.
     ///
     pub fn remove_historic(&mut self, layer: Arc<dyn Layer>) {
+
+        // TODO remve from self.index and self.images
+
         if layer.get_key_range() == (Key::MIN..Key::MAX) {
             let len_before = self.l0_delta_layers.len();
 

pageserver/src/tenant/timeline.rs

@@ -2298,6 +2298,7 @@ impl Timeline {
             l.delete()?;
             layers.remove_historic(l);
         }
+        layers.rebuild_index();
         drop(layers);
 
         // Also schedule the deletions in remote storage
@@ -2594,6 +2595,7 @@ impl Timeline {
             layers.remove_historic(doomed_layer);
             result.layers_removed += 1;
         }
+        layers.rebuild_index();
 
         info!(
             "GC completed removing {} layers, cutoff {}",