add the log in dumpanlyzer

cat-consumer/src/main/java/com/dianping/cat/consumer/dump/DumpAnalyzer.java

@@ -2,6 +2,7 @@ package com.dianping.cat.consumer.dump;
 
 import java.io.IOException;
 import java.util.Collections;
+import java.util.Date;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Set;
@@ -56,7 +57,9 @@ public class DumpAnalyzer extends AbstractMessageAnalyzer<Object> implements Ini
 			@Override
 			public void run() {
 				try {
+					m_logger.info("Dump analyer starting archive!" + new Date(m_startTime));
 					m_bucketManager.archive(m_startTime);
+					m_logger.info("Dump analyer end archive!");
 				} catch (Exception e) {
 					Cat.logError(e);
 				}

cat-core/src/test/java/com/dianping/cat/storage/dump/LocalMessageBucketTest.java

@@ -21,7 +21,7 @@ import com.dianping.cat.message.spi.MessageTree;
 import com.dianping.cat.message.spi.codec.EscapingBufferWriter;
 import com.dianping.cat.message.spi.codec.PlainTextMessageCodec;
 import com.dianping.cat.message.spi.internal.DefaultMessageTree;
-
+      
 @RunWith(JUnit4.class)
 @Ignore
 public class LocalMessageBucketTest extends ComponentTestCase {