diff --git a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/transactions/LogManagerProperties.java b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/transactions/LogManagerProperties.java
index 083ccf6..c64bd4a 100644
--- a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/transactions/LogManagerProperties.java
+++ b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/transactions/LogManagerProperties.java
@@ -27,32 +27,26 @@
     private static final long serialVersionUID = 2084227360840799662L;
 
     public static final String lineSeparator = System.getProperty("line.separator");
-    public static final int LOG_MAGIC_NUMBER = 123456789;
-    public static final String LOG_DIR_SUFFIX = ".txnLogDir";
-    private static final String DEFAULT_LOG_FILE_PREFIX = "asterix_transaction_log";
+    private static final String DEFAULT_LOG_FILE_PREFIX = "transaction_log";
 
     // follow the naming convention <logFilePrefix>_<number> where number starts from 0
     private final String logFilePrefix;
     private final String logDir;
-    public String logDirKey;
 
     // number of log pages in the log buffer
     private final int logPageSize;
     // number of log pages in the log buffer.
     private final int numLogPages;
-    // logBufferSize = logPageSize * numLogPages;
-    private final int logBufferSize;
     // maximum size of each log file
     private final long logPartitionSize;
 
     public LogManagerProperties(AsterixTransactionProperties txnProperties, String nodeId) {
-        this.logDirKey = new String(nodeId + LOG_DIR_SUFFIX);
         this.logPageSize = txnProperties.getLogBufferPageSize();
         this.numLogPages = txnProperties.getLogBufferNumPages();
         long logPartitionSize = txnProperties.getLogPartitionSize();
         this.logDir = txnProperties.getLogDirectory(nodeId);
         this.logFilePrefix = DEFAULT_LOG_FILE_PREFIX;
-        this.logBufferSize = logPageSize * numLogPages;
+        int logBufferSize = logPageSize * numLogPages;
         //make sure that the log partition size is the multiple of log buffer size.
         this.logPartitionSize = (logPartitionSize / logBufferSize) * logBufferSize;
     }
@@ -77,14 +71,7 @@
         return numLogPages;
     }
 
-    public int getLogBufferSize() {
-        return logBufferSize;
-    }
-
-    public String getLogDirKey() {
-        return logDirKey;
-    }
-
+    @Override
     public String toString() {
         StringBuilder builder = new StringBuilder();
         builder.append("log_dir_ : " + logDir + lineSeparator);
diff --git a/asterixdb/asterix-yarn/src/main/resources/configs/local.xml b/asterixdb/asterix-yarn/src/main/resources/configs/local.xml
index 76979b8..c026aef 100644
--- a/asterixdb/asterix-yarn/src/main/resources/configs/local.xml
+++ b/asterixdb/asterix-yarn/src/main/resources/configs/local.xml
@@ -21,13 +21,13 @@
   <!-- Name of the cluster -->
   <name>local</name>
 
-  <log_dir>/tmp/</log_dir>
-  <txn_log_dir>/tmp/</txn_log_dir>
+  <log_dir>/tmp/asterix-yarn/</log_dir>
+  <txn_log_dir>/tmp/asterix-yarn/</txn_log_dir>
 
   <!-- Mount point of an iodevice. Use a comma separated list for a machine that
                   has multiple iodevices (disks).
                              This property can be overriden for a node by redefining at the node level. -->
-  <iodevices>/tmp</iodevices>
+  <iodevices>/tmp/asterix-yarn</iodevices>
 
   <!-- Path on each iodevice where Asterix will store its data -->
   <store>storage</store>
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-am-common/src/main/java/org/apache/hyracks/storage/am/common/api/ITreeIndexMetaDataFrame.java b/hyracks-fullstack/hyracks/hyracks-storage-am-common/src/main/java/org/apache/hyracks/storage/am/common/api/ITreeIndexMetaDataFrame.java
index 21e918d..653f6ae 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-am-common/src/main/java/org/apache/hyracks/storage/am/common/api/ITreeIndexMetaDataFrame.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-am-common/src/main/java/org/apache/hyracks/storage/am/common/api/ITreeIndexMetaDataFrame.java
@@ -23,9 +23,9 @@
 
 public interface ITreeIndexMetaDataFrame {
 
-    //Storage version #. Change this if you alter any tree frame formats to stop
+    // Storage version #. Change this if you alter any tree frame formats to stop
     // possible corruption from old versions reading new formats.
-    public static final int VERSION = 3;
+    int VERSION = 4;
 
     public void initBuffer(byte level);