Hi everyone,

Just wanted to get peoples views on an indexing issue.  I gather a lot of 
people have apps where indexing writes to the same index as is used by the 
searcher.  The thing that bothers me about this is if indexing is interrupted 
(file system crash, out of disk space etc) the index becomes unusable.  This 
seems too risky in terms of keeping searching available 24/7.

My first question is, if an index does become corrupt because of an interrupted 
operation, is the situation recoverable?  Is it simply a matter of managing the 
index locks?

My second question is do people back up their indexes before working on them?  
If you do, then how do you manage this for large indexes?  What kind of 
strategies have you put in place to make your systems robust and available?

Many thanks for your advice


Marc



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