Twitter storm example running in local mode cannot delete file

Question

I am running the storm starter project (https://github.com/nathanmarz/storm-starter) and it throws the following error after running for a little while.

23135 [main] ERROR org.apache.zookeeper.server.NIOServerCnxn  - Thread Thread[main,5,main] died 
java.io.IOException: Unable to delete file: C:\Users\[user directory]\AppData\Local\Temp\a0894222-6a8a-4f80-8655-3ad6a0c10021\version-2\log.1
    at org.apache.commons.io.FileUtils.forceDelete(FileUtils.java:1390)
    at org.apache.commons.io.FileUtils.cleanDirectory(FileUtils.java:1044)
    at org.apache.commons.io.FileUtils.deleteDirectory(FileUtils.java:977)
    at org.apache.commons.io.FileUtils.forceDelete(FileUtils.java:1381)
    at org.apache.commons.io.FileUtils.cleanDirectory(FileUtils.java:1044)
    at org.apache.commons.io.FileUtils.deleteDirectory(FileUtils.java:977)
    at org.apache.commons.io.FileUtils.forceDelete(FileUtils.java:1381)
    at backtype.storm.util$rmr.invoke(util.clj:413)
    at backtype.storm.testing$kill_local_storm_cluster.invoke(testing.clj:164)
    at backtype.storm.LocalCluster$_shutdown.invoke(LocalCluster.clj:32)
    at backtype.storm.LocalCluster.shutdown(Unknown Source)
    at storm.starter.ExclamationTopology.main(ExclamationTopology.java:82)

I have tried changing the permissions of the "AppData" directory but this appears to not affect it. This error comes up running it on the command line as well as from within eclipse.

Answer 1

Per this File delete problem on Windows, this problem still exists in storm version 0.8.2. As of now, the below workaround worked for me. You may need to comment out the cluster.killTopology() and cluster.shutdown() methods, as shown below, to avoid the file deletion error.

 LocalCluster cluster = new LocalCluster();
        cluster.submitTopology("test", conf, builder.createTopology());
        Utils.sleep(10000);
       // cluster.killTopology("test");
       // cluster.shutdown();  

Hope, this helps