runtime-api: do not cache None SessionInfo (#4706)

* approval-voting: add more logs * approval-voting: query finalized block on startup and increase look back * runtime-api: do not cache None SessionInfo
paritytech · Jan 13, 2022 · 2ba377f · 2ba377f
1 parent 58a489d
commit 2ba377f
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/node/core/runtime-api/src/cache.rs b/node/core/runtime-api/src/cache.rs
@@ -317,7 +317,10 @@ impl RequestResultCache {
 	}
 
 	pub(crate) fn cache_session_info(&mut self, key: SessionIndex, value: Option<SessionInfo>) {
-		self.session_info.insert(key, ResidentSizeOf(value));
+		// only cache Some(SessionInfo)
+		if value.is_some() {
+			self.session_info.insert(key, ResidentSizeOf(value));
+		}
 	}
 
 	pub(crate) fn dmq_contents(