YARN-6958. Moving logging APIs over to slf4j in hadoop-yarn-server-timelineservice. Contributed by Yeliang Cang.

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timeline-pluginstorage/src/main/java/org/apache/hadoop/yarn/server/timeline/LevelDBCacheTimelineStore.java

@@ -19,8 +19,6 @@
 package org.apache.hadoop.yarn.server.timeline;
 
 import org.codehaus.jackson.map.ObjectMapper;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.classification.InterfaceAudience.Private;
 import org.apache.hadoop.classification.InterfaceStability.Unstable;
 import org.apache.hadoop.conf.Configuration;
@@ -34,6 +32,8 @@ import org.fusesource.leveldbjni.JniDBFactory;
 import org.iq80.leveldb.DB;
 import org.iq80.leveldb.DBIterator;
 import org.iq80.leveldb.Options;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.io.File;
 import java.io.IOException;
@@ -58,8 +58,8 @@ import java.util.Map;
 @Private
 @Unstable
 public class LevelDBCacheTimelineStore extends KeyValueBasedTimelineStore {
-  private static final Log LOG
-      = LogFactory.getLog(LevelDBCacheTimelineStore.class);
+  private static final Logger LOG
+      = LoggerFactory.getLogger(LevelDBCacheTimelineStore.class);
   private static final String CACHED_LDB_FILE_PREFIX = "-timeline-cache.ldb";
   private String dbId;
   private DB entityDb;
@@ -102,7 +102,7 @@ public class LevelDBCacheTimelineStore extends KeyValueBasedTimelineStore {
         localFS.setPermission(dbPath, LeveldbUtils.LEVELDB_DIR_UMASK);
       }
     } finally {
-      IOUtils.cleanup(LOG, localFS);
+      IOUtils.cleanupWithLogger(LOG, localFS);
     }
     LOG.info("Using leveldb path " + dbPath);
     entityDb = factory.open(new File(dbPath.toString()), options);
@@ -113,7 +113,7 @@ public class LevelDBCacheTimelineStore extends KeyValueBasedTimelineStore {
 
   @Override
   protected synchronized void serviceStop() throws Exception {
-    IOUtils.cleanup(LOG, entityDb);
+    IOUtils.cleanupWithLogger(LOG, entityDb);
     Path dbPath = new Path(
         configuration.get(YarnConfiguration.TIMELINE_SERVICE_LEVELDB_PATH),
         dbId + CACHED_LDB_FILE_PREFIX);
@@ -125,7 +125,7 @@ public class LevelDBCacheTimelineStore extends KeyValueBasedTimelineStore {
               "timeline store " + dbPath);
       }
     } finally {
-      IOUtils.cleanup(LOG, localFS);
+      IOUtils.cleanupWithLogger(LOG, localFS);
     }
     super.serviceStop();
   }