Prepare for tracking the current transient disk usage across all document dbs.

The next step will be sampling the total disk usage of all current fusion indexes
and report this as the transient disk usage.

1 files changed, 1 insertions, 0 deletions

diff --git a/searchcorespi/src/vespa/searchcorespi/index/indexmaintainer.cpp b/searchcorespi/src/vespa/searchcorespi/index/indexmaintainer.cpp
index a2bd19c3d29..6489cb156ce 100644
--- a/searchcorespi/src/vespa/searchcorespi/index/indexmaintainer.cpp
+++ b/searchcorespi/src/vespa/searchcorespi/index/indexmaintainer.cpp
@@ -117,6 +117,7 @@ public:
     {
         return _index->createBlueprint(requestContext, fields, term);
     }
+    // TODO: Calculate the total disk size of current fusion indexes and set fusion_size_on_disk().
     search::SearchableStats getSearchableStats() const override { return _index->getSearchableStats(); }
     search::SerialNum getSerialNum() const override {
         return _index->getSerialNum();