Github user NicoK commented on a diff in the pull request: https://github.com/apache/flink/pull/4358#discussion_r139957010 --- Diff: flink-runtime/src/main/java/org/apache/flink/runtime/blob/BlobServer.java --- @@ -174,7 +176,6 @@ public ServerSocket createSocket(int port) throws IOException { // start the server thread setName("BLOB Server listener at " + getPort()); setDaemon(true); - start(); --- End diff -- Basically yes but this pattern does not work well with classes inheriting from `BlobServer`. Here, this is only the case for the `TestingFailingBlobServer` which sets additional properties and relies on them being set while executing `run()`. If started in the constructor, the `run()` method would work on a partially initialised object.
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