Github user jerryshao commented on the pull request:
https://github.com/apache/spark/pull/2991#issuecomment-62998448
Hi TD, this test is so flaky, it fails several times in my local test:
```
- block addition, block to batch allocation and cleanup with write ahead
log *** FAILED *** (21 milliseconds)
[info] java.io.FileNotFoundException: File
/tmp/1415929501402-0/receivedBlockMetadata/log-0-1000 does not exist.
[info] at
org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:397)
[info] at
org.apache.hadoop.fs.RawLocalFileSystem.listStatus(RawLocalFileSystem.java:324)
[info] at
org.apache.spark.streaming.util.WriteAheadLogSuite$.getLogFilesInDirectory(WriteAheadLogSuite.scala:344)
[info] at
org.apache.spark.streaming.ReceivedBlockTrackerSuite.getWriteAheadLogFiles(ReceivedBlockTrackerSuite.scala:226)
[info] at
org.apache.spark.streaming.ReceivedBlockTrackerSuite$$anonfun$4.apply$mcV$sp(ReceivedBlockTrackerSuite.scala:171)
[info] at
org.apache.spark.streaming.ReceivedBlockTrackerSuite$$anonfun$4.apply(ReceivedBlockTrackerSuite.scala:96)
[info] at
org.apache.spark.streaming.ReceivedBlockTrackerSuite$$anonfun$4.apply(ReceivedBlockTrackerSuite.scala:96)
[info] at
....
```
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