2 files changed, 21 insertions, 0 deletions
diff --git a/src/main/java/com/amazon/carbonado/repo/sleepycat/BDBRepository.java b/src/main/java/com/amazon/carbonado/repo/sleepycat/BDBRepository.java
index 28fc347..dabb4fb 100644
--- a/src/main/java/com/amazon/carbonado/repo/sleepycat/BDBRepository.java
+++ b/src/main/java/com/amazon/carbonado/repo/sleepycat/BDBRepository.java
@@ -112,6 +112,7 @@ abstract class BDBRepository<Txn> extends AbstractRepository<Txn>
     private final Map<Class<?>, Integer> mDatabasePageSizes;
 
     final boolean mRunCheckpointer;
+    final boolean mKeepOldLogFiles;
     final boolean mRunDeadlockDetector;
 
     final File mDataHome;
@@ -155,6 +156,7 @@ abstract class BDBRepository<Txn> extends AbstractRepository<Txn>
         mTxnMgr = new BDBTransactionManager<Txn>(mExTransformer, this);
 
         mRunCheckpointer = !builder.getReadOnly() && builder.getRunCheckpointer();
+        mKeepOldLogFiles = builder.getKeepOldLogFiles();
         mRunDeadlockDetector = builder.getRunDeadlockDetector();
         mStorableCodecFactory = builder.getStorableCodecFactory();
         mPreShutdownHook = builder.getPreShutdownHook();
diff --git a/src/main/java/com/amazon/carbonado/repo/sleepycat/BDBRepositoryBuilder.java b/src/main/java/com/amazon/carbonado/repo/sleepycat/BDBRepositoryBuilder.java
index 0beea65..f3c80ae 100644
--- a/src/main/java/com/amazon/carbonado/repo/sleepycat/BDBRepositoryBuilder.java
+++ b/src/main/java/com/amazon/carbonado/repo/sleepycat/BDBRepositoryBuilder.java
@@ -108,6 +108,7 @@ public class BDBRepositoryBuilder extends AbstractRepositoryBuilder {
     private int mCheckpointInterval = DEFAULT_CHECKPOINT_INTERVAL;
     private int mCheckpointThresholdKB = 1024;
     private int mCheckpointThresholdMinutes = 5;
+    private boolean mKeepOldLogFiles;
     private boolean mRunDeadlockDetector = true;
     private Boolean mChecksumEnabled;
     private Object mInitialEnvConfig = null;
@@ -742,6 +743,24 @@ public class BDBRepositoryBuilder extends AbstractRepositoryBuilder {
     }
 
     /**
+     * By default, transaction log files are deleted when no longer needed.
+     * Keeping log files can be used for incremental backups or for diagnosing
+     * problems. If using BDB-JE, old log files are renamed with a ".del"
+     * extension. If using BDB-core, the db_archive utility is required for
+     * identifying old log files.
+     */
+    public void setKeepOldLogFiles(boolean keep) {
+        mKeepOldLogFiles = keep;
+    }
+
+    /**
+     * Returns false by default.
+     */
+    public boolean getKeepOldLogFiles() {
+        return mKeepOldLogFiles;
+    }
+
+    /**
      * Disable automatic deadlock detection of database if another thread is
      * responsible for that.
      */