add sled cache_capacity back

Cargo.toml

@@ -77,14 +77,14 @@ lru-cache = "0.1.2"
 rusqlite = { version = "0.25.3", optional = true, features = ["bundled"] }
 parking_lot = { version = "0.11.1", optional = true }
 crossbeam = { version = "0.8.1", optional = true }
-num_cpus = { version = "1.13.0", optional = true }
+num_cpus = "1.13.0"
 
 [features]
 default = ["conduit_bin", "backend_sqlite"]
 backend_sled = ["sled"]
 backend_rocksdb = ["rocksdb"]
 backend_sqlite = ["sqlite"]
-sqlite = ["rusqlite", "parking_lot", "crossbeam", "num_cpus", "tokio/signal"]
+sqlite = ["rusqlite", "parking_lot", "crossbeam", "tokio/signal"]
 conduit_bin = [] # TODO: add rocket to this when it is optional
 
 [[bin]]

src/database.rs

@@ -45,6 +45,8 @@ pub struct Config {
     database_path: String,
     #[serde(default = "default_db_cache_capacity_mb")]
     db_cache_capacity_mb: f64,
+    #[serde(default = "default_sled_cache_capacity_bytes")]
+    sled_cache_capacity_bytes: u64,
     #[serde(default = "default_sqlite_read_pool_size")]
     sqlite_read_pool_size: usize,
     #[serde(default = "true_fn")]
@@ -109,6 +111,10 @@ fn default_db_cache_capacity_mb() -> f64 {
     200.0
 }
 
+fn default_sled_cache_capacity_bytes() -> u64 {
+    1024 * 1024 * 1024
+}
+
 fn default_sqlite_read_pool_size() -> usize {
     num_cpus::get().max(1)
 }

src/database/abstraction/sled.rs

@@ -14,7 +14,7 @@ impl DatabaseEngine for Engine {
         Ok(Arc::new(Engine(
             sled::Config::default()
                 .path(&config.database_path)
-                .cache_capacity((config.db_cache_capacity_mb * 1024 * 1024) as u64)
+                .cache_capacity(config.sled_cache_capacity_bytes)
                 .use_compression(true)
                 .open()?,
         )))