title: Where is the default checkpoint(s) kept in Apache Flink?
body: <p>I am a newbie to Apache Flink, and I was going through the Apache Flink's examples. I found that in case of a failure Flink has the ability to restore stream processing from a checkpoint.</p>
  
  <pre><code>StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
  env.enableCheckpointing(10000L);
  </code></pre>
  
  <p>Now, my question is where does Flink keep the checkpoint(s) by default?</p>
  
  <p>Any help is appreciated!</p>