Hi Michael,
Thanks for your answer and sorry for my late reply.
Are you using compound file format (the default)?
Yes I am using the compound file format as default.
If you turn that off (just for this test) do you still see that
IndexWriter is holding open the files (35 in your example) after you
close all readers?
If I set
writer.setUseCompoundFile(false);
than I see a short time the 35 handles and than it drops to zero.
If I do not use the compound file format as my new default until the new
version with the fix is available, what would be the disadvantages?
Thanks for your help.
Thomas
I've found a case, only with compound file, where IndexWriter holds
open a SegmentReader on the pre-compound-file files... I'm working on
a test case& fix.
Mike
On Fri, Nov 12, 2010 at 5:49 AM, Thomas Rewig<tre...@mufin.com> wrote:
Hello,
I use the searcherManager for LiveIndexing. With watch -n 60 "lsof | grep
indexname | grep deleted | wc -l" I see the number of deleted file handles.
The number of handles fluctuates during the indexing. 0 -> 35 -> 53 -> 135
-> 40 -> 85 ... Uwe said that this is expected because segments are still
referenced by the open IndexReaders, but files were already deleted by
IndexWriter.
But something puzzles me:
Let's say we have a deleted file handle number of 85. If I switch the
NearRealTime Searcher to the readOnlySearcher the file handle number is
still 85. If i close afterwards the no more used indexwriter, the number
drops to 35. I think that means, that the indexwriter referenced deleted
files that are not referenced by the readers. It seems, that with every
commit the number of deleted file handles (which maybe are "caused" by the
indexwriter) grows.
Is that possible and if yes why does the indexwriter do it? Is there a max
Value of deleted handles an IndexWriter could own, because I don't want to
chrash the system because of too much open filehandles?
Thanks in advance.
Thomas
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