HADOOP-17547 Magic committer to downgrade abort in cleanup if list uploads fails with access denied (#3051)

Contributed by Bogdan Stolojan

Change-Id: I32d6dc4f72087783a3ea12473d11690ac14fe3cb

hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/AbstractS3ACommitter.java

@@ -832,8 +832,8 @@ public abstract class AbstractS3ACommitter extends PathOutputCommitter
       try {
         pending = ops.listPendingUploadsUnderPath(dest);
       } catch (IOException e) {
-        // raised if the listPendingUploads call failed.
-        maybeIgnore(suppressExceptions, "aborting pending uploads", e);
+        // Swallow any errors given this is best effort
+        LOG.debug("Failed to list pending uploads under {}", dest, e);
         return;
       }
       if (!pending.isEmpty()) {