Fix bug in PageStore#commit method - when the ignoreBigLog flag was set,

the logic that cleared the flag could never be reached, resulting in performance degradation.
Reported by Alexander Nesterov.

h2/src/docsrc/html/changelog.html

@@ -20,6 +20,9 @@ Change Log
 <ul><li>MVStore: concurrent compaction and store operations could result in an IllegalStateException.
 </li><li>Issue 594: Profiler.copyInThread does not work properly.
 </li><li>Script tool: Fix parsing of BLOCKSIZE parameter, original patch by Ken Jorissen
+</li><li>Fix bug in PageStore#commit method - when the ignoreBigLog flag was set,
+    the logic that cleared the flag could never be reached, resulting in performance degradation.
+    Reported by Alexander Nesterov.
 </li></ul>
 
 <h2>Version 1.4.184 Beta (2014-12-19)</h2>

h2/src/main/org/h2/store/PageStore.java

@@ -1478,9 +1478,6 @@ public class PageStore implements CacheWriter {
         if (size - logSizeBase > maxLogSize / 2) {
             int firstSection = log.getLogFirstSectionId();
             checkpoint();
-            if (ignoreBigLog) {
-                return;
-            }
             int newSection = log.getLogSectionId();
             if (newSection - firstSection <= 2) {
                 // one section is always kept, and checkpoint
@@ -1492,10 +1489,12 @@ public class PageStore implements CacheWriter {
                 ignoreBigLog = false;
                 return;
             }
-            ignoreBigLog = true;
-            trace.error(null,
-                    "Transaction log could not be truncated; size: " +
-                    (newSize / 1024 / 1024) + " MB");
+            if (!ignoreBigLog) {
+                ignoreBigLog = true;
+                trace.error(null,
+                        "Transaction log could not be truncated; size: " +
+                        (newSize / 1024 / 1024) + " MB");
+            }
             logSizeBase = log.getSize();
         }
     }