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From "Fuad Efendi" <>
Subject RE: Too many open files
Date Sat, 24 Oct 2009 16:10:17 GMT
Thanks for pointing to it, but it is so obvious:

1. "Buffer" is used as a RAM storage for index updates
2. "int" has 2 x Gb different values (2^^32)
3. We can have _up_to_ 2Gb of _Documents_ (stored as key->value pairs,
inverted index)

In case of 5 fields which I have, I need 5 arrays (up to 2Gb of size for
each) to store inverted pointers, so that there is no any theoretical limit:

> Also, from the javadoc in IndexWriter:
>    * <p> <b>NOTE</b>: because IndexWriter uses
>    * <code>int</code>s when managing its internal storage,
>    * the absolute maximum value for this setting is somewhat
>    * less than 2048 MB.  The precise limit depends on
>    * various factors, such as how large your documents are,
>    * how many fields have norms, etc., so it's best to set
>    * this value comfortably under 2048.</p>

Note also, I use norms etc...

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