Hi,
2009/7/22 Mathias De Maré <mathias.dem...@gmail.com>
> I went over the steps, and it looks like I did the same (only I didn't
> create a dedicated user and I didn't disable IPv6, since I can use it here).
> Oh, and I noticed one more thing: when I start Hadoop by running
> bin/start-dfs.sh, wait about 20 seconds for everything to get set up and
> then run bin/start-mapred.sh, everything works fine.
>
> With the JUnit tests and MiniMRCluster, there's the following error:
> 09/07/22 09:15:21 ERROR mapred.MiniMRCluster: Job tracker crashed
> java.lang.NullPointerException
> at java.io.File.<init>(File.java:222)
> at org.apache.hadoop.mapred.JobHistory.init(JobHistory.java:151)
> at org.apache.hadoop.mapred.JobTracker.<init>(JobTracker.java:1559)
> at
> org.apache.hadoop.mapred.JobTracker.startTracker(JobTracker.java:174)
> at
> org.apache.hadoop.mapred.MiniMRCluster$JobTrackerRunner.run(MiniMRCluster.java:101)
> at java.lang.Thread.run(Thread.java:619)
>
>
> Mathias
>
>
I managed to solve the issue (at least temporarily).
The "build.log.dir" property was not being set, so I added a line before the
MiniMRCluster constructor:
System.setProperty("hadoop.log.dir", "build/test/logs");
Mathias
