[GitHub] storm pull request #2812: STORM-3203: add back in the permission updates

[danny0405]

Github user danny0405 commented on a diff in the pull request:

    https://github.com/apache/storm/pull/2812#discussion_r212851256
  
    --- Diff: 
storm-server/src/main/java/org/apache/storm/localizer/LocallyCachedTopologyBlob.java
 ---
    @@ -125,6 +129,12 @@ public long getRemoteVersion(ClientBlobStore store) 
throws KeyNotFoundException,
         @Override
         public long fetchUnzipToTemp(ClientBlobStore store)
             throws IOException, KeyNotFoundException, AuthorizationException {
    +        synchronized (LocallyCachedTopologyBlob.class) {
    +            if (!Files.exists(topologyBasicBlobsRootDir)) {
    --- End diff --
    
    If we enforce different dirs for supervisors on one machine, i'm okey with 
this.😀


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