XComp commented on a change in pull request #18692:
URL: https://github.com/apache/flink/pull/18692#discussion_r804187457



##########
File path: 
flink-runtime/src/main/java/org/apache/flink/runtime/highavailability/FileSystemJobResultStore.java
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@@ -155,18 +155,15 @@ public boolean hasCleanJobResultEntryInternal(JobID 
jobId) throws IOException {
     @Override
     public Set<JobResult> getDirtyResultsInternal() throws IOException {
         final Set<JobResult> dirtyResults = new HashSet<>();
-        final FileStatus fs = fileSystem.getFileStatus(this.basePath);
-        if (fs.isDir()) {
-            FileStatus[] statuses = fileSystem.listStatus(this.basePath);

Review comment:
       The presto test still fails with this change being reverted. 
`PrestoS3FileSystem` does not call `getFileStatus`. Removing the `isDir` check 
fixes that issue. I do another round over the presto implementation tomorrow to 
understand why it is.




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