Github user WeichenXu123 commented on the pull request: https://github.com/apache/spark/pull/12978#issuecomment-218089784 @srowen At my virtual machine, After OS started and start spark daemon, the stage 1 describe above will took a long time,often exceeding 2s, I think the java daemon start need to load a huge number of jars so it will took several time when started at the first time.
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