memory mapped files and disk errors?

[robert engels <re...@ix.netcom.com>]

I encountered the famous AIOOBE:

java.lang.ArrayIndexOutOfBoundsException: 207243
             at org.apache.lucene.util.BitVector.get(BitVector.java:63)
             at org.apache.lucene.index.SegmentTermDocs.next 
(SegmentTermDocs.java:110)
             at org.apache.lucene.index.SegmentTermDocs.skipTo 
(SegmentTermDocs.java:194)
             at org.apache.lucene.index.MultiTermDocs.skipTo 
(MultiReader.java:421)
             at org.apache.lucene.search.TermScorer.skipTo 
(TermScorer.java:144)
             at org.apache.lucene.search.ReqExclScorer.toNonExcluded 
(ReqExclScorer.java:82)
             at org.apache.lucene.search.ReqExclScorer.next 
(ReqExclScorer.java:61)
             at org.apache.lucene.search.BooleanScorer2.score 
(BooleanScorer2.java:290)
             at org.apache.lucene.search.IndexSearcher.search 
(IndexSearcher.java:132)
             at org.apache.lucene.search.Searcher.search 
(Searcher.java:116)

It seems that this MAY be caused when using MemoryMapped files and a  
disk error occurs. The index is constant. Every time the error occurs  
I get the following error message in the Windows system event log:

An error was detected on device \Device\Harddisk0 during a paging  
operation.

For more information, see Help and Support Center at http:// 
go.microsoft.com/fwlink/events.asp.

Could it be that when using a MemoryMapped file that disk read errors  
are not propagated, only to appears are corrupted data later (invalid  
document #)?