On Aug 1, 2009, at 7:52 AM, Grant Ingersoll <gsing...@apache.org> wrote:
In many NRT cases, it seems the traditional approach has been to have two RAM directories and a write-through FS Directory (for example Zoie does this, and it has also been discussed a fair number of times on the various lists). I'm wondering how the new IndexWriter.getReader stuff relates to that approach? Is there even a need for the RAM dirs at this point?
I'm curious as to how it obviates the need for a RAM dir? In my use case I use them to create indexes and perform searches. In the latter it avoids OS file indexing and virus scanner contention (40 min reduced to less than 2 min). The indexes are small at 2-4M and 64k tiny docs in each. So they easily fit in core. For searching the gain was small but noticible.
-- DM
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