That is a very small heap. The reduces, in particular, would benefit sustantially from having more memory.
Other than that (and having fewer reduces), I am at a bit of a loss. I know that others are working on comparably sized problems without much difficulty. There might be an interaction with your small heaps and attempts to buffer outputs. On 12/27/07 10:31 AM, "jag123" <[EMAIL PROTECTED]> wrote: >> What happens on the large size problems if you decrease the number of >> maps, >> but keep input size constant? > > My map processes run out of Heap space if I decrease the number of map > processes. > The maximum number of records that my map process can handle is 250k as my > heap size is only 256m.
