Merge branch 'master' into dev

@@ -275,6 +275,8 @@ public class SearchController {
 			String val = ((String[]) paramMap.get(key))[0];
 			resultMap.put(key, val);
 		}
+		resultMap.put("Referer", request.getHeader("Referer"));
+		resultMap.put("User-Agent", request.getHeader("User-Agent"));
 		return resultMap;
 	}
 

@@ -129,6 +129,24 @@
             <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger:%line - %msg%n</pattern>
         </encoder>
     </appender>
+    
+     <!-- 缓存命中统计 appender -->
+    <appender name="CACHE_MATCH" class="ch.qos.logback.core.rolling.RollingFileAppender">
+        <file>${yoho.logs.basedir}/${yoho.search.service.env.namespace}/cache-match.log</file>
+        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
+            <!-- daily rollover -->
+            <fileNamePattern>${yoho.logs.basedir}/${yoho.search.service.env.namespace}/archived/cache-match.%d{yyyy-MM-dd}.%i.log</fileNamePattern>
+            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
+                <!-- or whenever the file size reaches 100MB -->
+                <maxFileSize>${yoho.logs.maxFileSize}</maxFileSize>
+            </timeBasedFileNamingAndTriggeringPolicy>
+            <!-- keep 30 days' worth of history -->
+            <maxHistory>${yoho.logs.maxHistory}</maxHistory>
+        </rollingPolicy>
+        <encoder>
+            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger:%line - %msg%n</pattern>
+        </encoder>
+    </appender>
 
     <!-- 数据库操作日志 -->
     <logger name="java.sql.PreparedStatement" value="${yoho.logs.level}" />
@@ -165,5 +183,11 @@
         <level value="INFO"/>
         <appender-ref ref="REQUEST_STAT"/>
     </logger>
+    
+    <!-- 缓存命中统计日志 -->
+    <logger name="com.yoho.search.cache.CacheService" additivity="false">
+        <level value="INFO"/>
+        <appender-ref ref="CACHE_MATCH"/>
+    </logger>
 
 </configuration>  
\ No newline at end of file