HDFS-9555. LazyPersistFileScrubber should still sleep if there are errors in the clear progress. Contributed by Phil Yang.

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java

@@ -3894,14 +3894,17 @@ public class FSNamesystem implements Namesystem, FSNamesystemMBean,
                   .debug("Namenode is in safemode, skipping scrubbing of corrupted lazy-persist files.");
             }
           }
+        } catch (Exception e) {
+          FSNamesystem.LOG.error(
+              "Ignoring exception in LazyPersistFileScrubber:", e);
+        }
+
+        try {
           Thread.sleep(scrubIntervalSec * 1000);
         } catch (InterruptedException e) {
           FSNamesystem.LOG.info(
               "LazyPersistFileScrubber was interrupted, exiting");
           break;
-        } catch (Exception e) {
-          FSNamesystem.LOG.error(
-              "Ignoring exception in LazyPersistFileScrubber:", e);
         }
       }
     }