My feeling is that you have some kind of leak going on in your mappers or reducers and that reducing the number of times the jvm is re-used would improve matters.
GC overhead limit indicates that your (tiny) heap is full and collection is not reducing that. On Sun, Sep 26, 2010 at 12:55 AM, Bradford Stephens < [email protected]> wrote: > mapred.job.reuse.jvm.num.tasks=50 >
