More debug

src/frontend/edu/brown/hstore/HStoreJVMSnapshotManager.java

@@ -6,13 +6,15 @@
 import java.util.concurrent.LinkedBlockingDeque;
 
 import org.apache.log4j.Logger;
+import org.jfree.util.Log;
 import org.voltdb.ClientResponseImpl;
 import org.voltdb.catalog.Site;
 import org.voltdb.messaging.FastDeserializer;
 import org.voltdb.messaging.FastSerializer;
 import org.voltdb.utils.ProcessUtils;
 
 import com.google.protobuf.ByteString;
+
 import edu.brown.hstore.Hstoreservice.Status;
 import edu.brown.hstore.txns.LocalTransaction;
 import edu.brown.logging.LoggerUtil;
@@ -189,6 +191,9 @@ public void addTransactionRequest(LocalTransaction ts) {
     // ----------------------------------------------------------------------------
 
     public void sendResponseToParent(ClientResponseImpl response) {
+        if (debug.val) {
+            Log.debug("Send back client response to parent");
+        }
         ByteString bs = ByteString.EMPTY;
         try {
             bs = ByteString.copyFrom(FastSerializer.serialize(response));

src/frontend/edu/brown/hstore/callbacks/LocalPrepareCallback.java

@@ -4,6 +4,7 @@
 import java.util.List;
 
 import org.apache.log4j.Logger;
+import org.jfree.util.Log;
 import org.voltdb.ClientResponseImpl;
 
 import com.google.protobuf.RpcCallback;
@@ -68,6 +69,9 @@ protected void unblockCallback() {
         // We want to do this first because the transaction state could get
         // cleaned-up right away when we call HStoreCoordinator.transactionFinish()
         ClientResponseImpl cresponse = this.ts.getClientResponse();
+        if (debug.val) {
+            Log.debug("Send back client response");
+        }
         assert(cresponse.isInitialized()) :
             "Trying to send back ClientResponse for " + ts + " before it was set!";
         this.hstore_site.responseSend(this.ts, cresponse);