MVStore: the maximum cache size was artificially limited to 2 GB (due to an integer overflow).

h2/src/docsrc/html/changelog.html

@@ -17,7 +17,9 @@ Change Log
 <h1>Change Log</h1>
 
 <h2>Next Version (unreleased)</h2>
-<ul><li>MVStore / TransactionStore: concurrent updates could result in a
+<ul><li>MVStore: the maximum cache size was artificially limited to 2 GB 
+    (due to an integer overflow).
+</li><li>MVStore / TransactionStore: concurrent updates could result in a
     "Too many open transactions" exception.
 </li><li>StringUtils.toUpperEnglish now has a small cache.
     This should speed up reading from a ResultSet when using the column name.

h2/src/main/org/h2/mvstore/MVStore.java

@@ -316,7 +316,7 @@ public class MVStore {
         o = config.get("cacheSize");
         int mb = o == null ? 16 : (Integer) o;
         if (mb > 0) {
-            int maxMemoryBytes = mb * 1024 * 1024;
+            long maxMemoryBytes = mb * 1024L * 1024L;
             int segmentCount = 16;
             int stackMoveDistance = 8;
             cache = new CacheLongKeyLIRS<Page>(