Error at MapReduceKernelLink.java

[sunbc0120]

Very strange error.

The whole package worked nicely before my cluster crashed one time. After reinstall the OS and everything, lots of errors emerge including this one.

2016-02-11 19:35:06,117 INFO org.apache.hadoop.metrics.jvm.JvmMetrics: Initializing JVM Metrics with processName=MAP, sessionId=
2016-02-11 19:35:06,184 INFO org.apache.hadoop.mapred.MapTask: io.sort.mb = 100
2016-02-11 19:35:06,208 INFO org.apache.hadoop.mapred.MapTask: data buffer = 79691776/99614720
2016-02-11 19:35:06,208 INFO org.apache.hadoop.mapred.MapTask: record buffer = 262144/327680
2016-02-11 19:35:06,231 INFO org.apache.hadoop.util.NativeCodeLoader: Loaded the native-hadoop library
2016-02-11 19:35:06,233 INFO org.apache.hadoop.io.compress.zlib.ZlibFactory: Successfully loaded & initialized native-zlib library
2016-02-11 19:35:06,233 INFO org.apache.hadoop.io.compress.CodecPool: Got brand-new decompressor
2016-02-11 19:35:06,726 WARN org.apache.hadoop.mapred.TaskTracker: Error running child
java.lang.StringIndexOutOfBoundsException: String index out of range: -6
    at java.lang.String.substring(String.java:1967)
    at com.wolfram.hadoop.mapreduce.MapReduceKernelLink.loadPackageFromJar(Unknown Source)
    at com.wolfram.hadoop.mapreduce.MapReduceKernelLink.get(Unknown Source)
    at com.wolfram.hadoop.mapreduce.MathematicaMapper.setup(Unknown Source)
    at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:142)
    at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:518)
    at org.apache.hadoop.mapred.MapTask.run(MapTask.java:303)
    at org.apache.hadoop.mapred.Child.main(Child.java:170)
2016-02-11 19:35:06,730 INFO org.apache.hadoop.mapred.TaskRunner: Runnning cleanup for the task

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Located at:

String packagePath = packageURL.getPath();
int n = packagePath.lastIndexOf("!");
String jarPath = packagePath.substring(5, n);