On May 29, 2008, at 6:35 PM, Michael McCandless wrote:

Can you use lsof (or something similar) to see how many files you have?

FYI: I personally can't reproduce this; only a coworker can and even then it's sporadic, so it could take a little while.

Merging, especially several running at once, can greatly increase open file count, and especially if mergeFactor is increased.

That raises a few questions:

1. Should I lower my mergeFactor?

2. Is there any way to insist that only one merger runs?

3. Is there any way to insist that all merges happen synchronously, i.e., on IndexWriter.close() only and not to use a separate merge thread?

- Paul

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