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https://issues.apache.org/jira/browse/FLINK-6008?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15930208#comment-15930208
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ASF GitHub Bot commented on FLINK-6008:
---------------------------------------
Github user StephanEwen commented on a diff in the pull request:
https://github.com/apache/flink/pull/3512#discussion_r106677799
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/blob/BlobServer.java ---
@@ -400,6 +418,47 @@ public void delete(BlobKey key) throws IOException {
}
/**
+ * Deletes the file associated with the given job and key if it exists
in the local
+ * storage of the blob server.
+ *
+ * @param jobId JobID of the file in the blob store
+ * @param key String key of the file in the blob store
+ */
+ @Override
+ public void delete(JobID jobId, String key) {
+ checkArgument(jobId != null, "Job id must not be null.");
+ checkArgument(key != null, "BLOB name must not be null.");
+
+ final File localFile = BlobUtils.getStorageLocation(storageDir,
jobId, key);
+
+ if (localFile.exists()) {
--- End diff --
From concurrency safety, it better to do `if (!delete && exists)`
> collection of BlobServer improvements
> -------------------------------------
>
> Key: FLINK-6008
> URL: https://issues.apache.org/jira/browse/FLINK-6008
> Project: Flink
> Issue Type: Improvement
> Components: Network
> Affects Versions: 1.3.0
> Reporter: Nico Kruber
> Assignee: Nico Kruber
>
> The following things should be improved around the BlobServer/BlobCache:
> * update config uptions with non-deprecated ones, e.g.
> {{high-availability.cluster-id}} and {{high-availability.storageDir}}
> * promote {{BlobStore#deleteAll(JobID)}} to the {{BlobService}}
> * extend the {{BlobService}} to work with {{NAME_ADDRESSABLE}} blobs
> (prepares FLINK-4399]
> * remove {{NAME_ADDRESSABLE}} blobs after job/task termination
> * do not fail the {{BlobServer}} when a delete operation fails
> * code style, like using {{Preconditions.checkArgument}}
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