Christiaan Fluit wrote:
Christoph Goller wrote:
1) Keep an IndexReader/Searcher open on your index in order to guarantee
reed access and a consistent index during the whole process.
2) Open a new IndexReader and delete all the documents that you want to
update.
3) Close the IndexReader (makes the deletions visible for any new
readers/writers but not for the still opened Searcher/Reader).
But what happens when a query evaluated by the IndexReader/IndexSearcher
mentioned in (1) results in a hit that has already been deleted by the
second IndexReader? I.e. you try to access a document through one
IndexReader that has already been deleted by another IndexReader.
I would expect some kind of exception because the document data can no
longer be found, or am I missing something? I hope I am because your
solution does sound very attractive ;)
The IndexReader opened in 1 keeps a copy of his version of the index
until he is closed. This means he will never see any changes made by
another reader or a writer.
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