optimize log

apollo-client/src/main/java/com/ctrip/framework/apollo/internals/DefaultMetaServerProvider.java

@@ -39,7 +39,7 @@ public class DefaultMetaServerProvider implements MetaServerProvider {
       logger.warn("Could not find meta server address, because it is not available in neither (1) JVM system property 'apollo.meta', (2) OS env variable 'APOLLO_META' (3) property 'apollo.meta' from server.properties nor (4) property 'apollo.meta' from app.properties");
     } else {
       metaAddress = metaAddress.trim();
-      logger.warn("Located meta services from apollo.meta configuration: {}!", metaAddress);
+      logger.info("Located meta services from apollo.meta configuration: {}!", metaAddress);
     }
 
     return metaAddress;

apollo-core/src/main/java/com/ctrip/framework/apollo/core/utils/ResourceUtils.java

@@ -51,7 +51,7 @@ public class ResourceUtils {
       if (sb.length() > 0) {
         logger.debug("Reading properties: \n" + sb.toString());
       } else {
-        logger.warn("No available properties");
+        logger.warn("No available properties: {}", configPath);
       }
     }
     return props;

apollo-core/src/main/java/com/ctrip/framework/foundation/internals/provider/DefaultServerProvider.java

@@ -37,7 +37,6 @@ public class DefaultServerProvider implements ServerProvider {
         return;
       }
 
-      logger.warn("{} does not exist or is not readable.", path);
       initialize(null);
     } catch (Throwable ex) {
       logger.error("Initialize DefaultServerProvider failed.", ex);
@@ -128,7 +127,7 @@ public class DefaultServerProvider implements ServerProvider {
 
     // 4. Set environment to null.
     m_env = null;
-    logger.warn("Environment is set to null. Because it is not available in either (1) JVM system property 'env', (2) OS env variable 'ENV' nor (3) property 'env' from the properties InputStream.");
+    logger.info("Environment is set to null. Because it is not available in either (1) JVM system property 'env', (2) OS env variable 'ENV' nor (3) property 'env' from the properties InputStream.");
   }
 
   private void initDataCenter() {