Fix record count file non-existed issue (#1833)

Author: yukuai518

gobblin-compaction/src/main/java/gobblin/compaction/verify/CompactionThresholdVerifier.java

@@ -1,6 +1,7 @@
 package gobblin.compaction.verify;
 
-import avro.shaded.com.google.common.collect.Lists;
+
+import com.google.common.collect.Lists;
 import gobblin.compaction.conditions.RecompactionConditionBasedOnRatio;
 import gobblin.compaction.mapreduce.MRCompactor;
 import gobblin.compaction.parser.CompactionPathParser;

gobblin-compaction/src/main/java/gobblin/compaction/verify/InputRecordCountHelper.java

@@ -77,7 +77,7 @@ public long calculateRecordCount (Collection<Path> paths) throws IOException {
    * @return record count
    */
   public static long readRecordCount (FileSystem fs, Path dir) throws IOException {
-    if (!fs.exists(dir)) {
+    if (!fs.exists(new Path(dir, RECORD_COUNT_FILE))) {
       return 0;
     }