JobSplitWriter.java can't handle large job.split file
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Key: MAPREDUCE-2779
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2779
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: job submission
Reporter: Ming Ma
We use cascading MultiInputFormat. MultiInputFormat sometimes generates big
job.split used internally by hadoop, sometimes it can go beyond 2GB.
In JobSplitWriter.java, the function that generates such file uses 32bit signed
integer to compute offset into job.split.
writeNewSplits
...
int prevCount = out.size();
...
int currCount = out.size();
writeOldSplits
...
long offset = out.size();
...
int currLen = out.size();
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