title: Datastax: Block not found error from DSEFS
body: <p>Spark streaming job running in DSE using DSEFS for check-pointing directory. I see this error in debug log file. How to resolve this error?</p>
  
  <pre><code>ERROR [dsefs-netty-worker-5] 2017-12-01 05:23:02,679 DSE-FS RestServerHandler.scala:126 - [id: 0x9964e082, /&lt;&gt;:58874 :&gt; 0.0.0.0/0.0.0.0:5598] Streaming data to remote end failed.
  java.io.IOException: Block not found a3859f30-aa23-11e7-80b9-4b8bdaf197cd
      at com.datastax.bdp.fs.server.blocks.BlockService$stateMachine$33$1.apply(BlockService.scala:706) ~[dsefs-server_2.10-5.0.19.jar:5.0.19]
      at com.datastax.bdp.fs.server.blocks.BlockService$stateMachine$33$1.apply(BlockService.scala:703) ~[dsefs-server_2.10-5.0.19.jar:5.0.19]
      at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32) [scala-library-2.10.6.jar:na]
      at com.datastax.bdp.fs.exec.SameThreadExecutionContext$class.executeInSameThread(SameThreadExecutionContext.scala:24) ~[dsefs-common_2.10-5.0.19.jar:5.0.19]
      at com.datastax.bdp.fs.exec.SameThreadExecutionContext$class.execute(SameThreadExecutionContext.scala:33) ~[dsefs-common_2.10-5.0.19.jar:5.0.19]
      at com.datastax.bdp.fs.exec.SerialExecutionContextProvider$$anon$5$$anon$2.execute(SerialExecutionContextProvider.scala:24) ~[dsefs-common_2.10-5.0.19.jar:5.0.19]
      at scala.concurrent.impl.CallbackRunnable.executeWithValue(Promise.scala:40) [scala-library-2.10.6.jar:na]
      at scala.concurrent.impl.Promise$DefaultPromise.tryComplete(Promise.scala:248) ~[scala-library-2.10.6.jar:na]
      at scala.concurrent.Promise$class.complete(Promise.scala:55) ~[scala-library-2.10.6.jar:na]
      at scala.concurrent.impl.Promise$DefaultPromise.complete(Promise.scala:153) ~[scala-library-2.10.6.jar:na]
      at com.datastax.bdp.fs.server.blocks.BlockService$stateMachine$1$1.apply(BlockService.scala:60) ~[dsefs-server_2.10-5.0.19.jar:5.0.19]
      at com.datastax.bdp.fs.server.blocks.BlockService$stateMachine$1$1.apply(BlockService.scala:60) ~[dsefs-server_2.10-5.0.19.jar:5.0.19]
      at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32) [scala-library-2.10.6.jar:na]
      at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:358) [netty-all-4.0.34.Final.jar:4.0.34.Final]
      at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:357) [netty-all-4.0.34.Final.jar:4.0.34.Final]
      at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:112) [netty-all-4.0.34.Final.jar:4.0.34.Final]
      at java.lang.Thread.run(Thread.java:745) [na:1.8.0_112]
  </code></pre>