diskdown default to Combined

packages/db-diskdown/src/index.ts

@@ -10,7 +10,7 @@ import isUndefined from '@polkadot/util/is/undefined';
 import logger from '@polkadot/util/logger';
 
 import Combined from './store/Combined';
-import Scatter from './store/Scatter';
+// import Scatter from './store/Scatter';
 
 const LRU_SIZE = 8192;
 
@@ -25,12 +25,8 @@ class DiskDown extends AbstractLevelDOWN {
   constructor (location: string) {
     super(location);
 
-    // FIXME We only want one of these, however add both to aid in easy
-    // debug testing (i.e. remove the one not needed - defaults still to
-    // Scatter with the override as set here)
+    // this._disk = new Scatter(location);
     this._disk = new Combined(location);
-    this._disk = new Scatter(location);
-
     this._store = new LRUMap(LRU_SIZE);
   }
 

packages/db-diskdown/src/store/Combined.ts

@@ -40,7 +40,7 @@ const UINT_SIZE = 6; // 48-bit, the max Node supports
 const KEY_SIZE = 32;
 const KEY_TOTAL_SIZE = KEY_SIZE + UINT_SIZE + UINT_SIZE;
 const ENTRY_SIZE = 1 + UINT_SIZE;
-const HEADER_SIZE = 10 * ENTRY_SIZE;
+const HEADER_SIZE = 256 * ENTRY_SIZE;
 
 const l = logger('disk/combined');
 
@@ -296,7 +296,7 @@ export default class StoreCombined implements DiskStore {
       };
     }
 
-    throw new Error(`Unhandled entry type ${entry[0]}`);
+    throw new Error(`Unhandled entry type ${entryType}`);
   }
 
   private findKey (key: Buffer, doCreate: boolean): Leaf | null {