diff --git a/include/ircd/db/database/descriptor.h b/include/ircd/db/database/descriptor.h
index 49409376f..e3dcb9ca6 100644
--- a/include/ircd/db/database/descriptor.h
+++ b/include/ircd/db/database/descriptor.h
@@ -39,10 +39,10 @@ struct ircd::db::database::descriptor
 	db::prefix_transform prefix {};
 
 	/// Size of the LRU cache for uncompressed blocks
-	size_t cache_size { 16_MiB };
+	ssize_t cache_size { -1 };
 
 	/// Size of the LRU cache for compressed blocks
-	size_t cache_size_comp { 8_MiB };
+	ssize_t cache_size_comp { -1 };
 
 	/// Bloom filter bits. Filter is still useful even if queries are expected
 	/// to always hit on this column; see `expect_queries_hit` option.
diff --git a/ircd/db.cc b/ircd/db.cc
index c42672f77..1af716701 100644
--- a/ircd/db.cc
+++ b/ircd/db.cc
@@ -1370,13 +1370,13 @@ ircd::db::database::column::column(database *const &d,
 
 	// Setup the cache for assets.
 	const auto &cache_size(this->descriptor.cache_size);
-	if(cache_size)
-		table_opts.block_cache = rocksdb::NewLRUCache(cache_size);
+	if(cache_size != 0)
+		table_opts.block_cache = std::make_shared<database::cache>(d, cache_size);
 
 	// Setup the cache for compressed assets.
 	const auto &cache_size_comp(this->descriptor.cache_size_comp);
-	if(cache_size_comp)
-		table_opts.block_cache_compressed = rocksdb::NewLRUCache(cache_size_comp);
+	if(cache_size_comp != 0)
+		table_opts.block_cache_compressed = std::make_shared<database::cache>(d, cache_size_comp);
 
 	// Setup the bloom filter.
 	const auto &bloom_bits(this->descriptor.bloom_bits);