refactor: slightly increase querier namespace cache TTLs
This should lower catalog load and eliminate a few costly cache misses.
@@ -29,10 +29,10 @@ use trace::span::Span;
use super::ram::RamSize;
/// Duration to keep existing namespaces.
-pub const TTL_EXISTING: Duration = Duration::from_secs(60);
+pub const TTL_EXISTING: Duration = Duration::from_secs(120);
// When to refresh an existing namespace.
-pub const REFRESH_EXISTING: Duration = Duration::from_secs(10);
+pub const REFRESH_EXISTING: Duration = Duration::from_secs(30);
/// Duration to keep non-existing namespaces.
///
