Hi,
It's a local IndexSearcher.
I have done a lot of tests and it's really happening.
Let me give you a little more details, maybe this helps:
- I call a function that creates a new IndexSearcher and call $hits =
$searcher -> hits.
- I iterate over the first few entries and returns the entries and the $hits
- The documents that were found are deleted from a database, which in
turn deletes the documents from the Lucy index.
- Now I iterate over the next few entries and delete them and so on
I have made small test where per iteration only two entries are fetch.
The result looks like this:
id=> "8b8bce64e69b52ed244671009c11ee0e",
id=> "8b8bce64e69b52ed244671009c4857e7",
id=> "4a3dcd6c2e9e3074d2d52b8e72584b68",
id=> "8b8bce64e69b52ed244671009c730dc9",
id=> "4a3dcd6c2e9e3074d2d52b8e72584d19",
id=> "8b8bce64e69b52ed244671009c7e3974",
id=> "4a3dcd6c2e9e3074d2d52b8e72585475",
id=> "8b8bce64e69b52ed244671009c7e4788",
id=> "4a3dcd6c2e9e3074d2d52b8e72585dc2",
id=> "8b8bce64e69b52ed244671009c7e2fa6",
id is some value I store in the document. The result should only contain
ids starting with 8.
So you see the first two are correct, after deletion of this two (always
in a different process), the next time, the first one I get is wrong the
second one is correct...
If I do not delete anything I only get the right entries (just commented
out one line the rest is still the same).
Any clue?
Thanks & Regards
Gerald
Am 19.11.2015 um 12:18 schrieb Marvin Humphrey:
On Wed, Nov 18, 2015 at 10:22 PM, Gerald Richter <[email protected]> wrote:
I have a simple query that consists of a TermQuery and a RangeQuery, I am
iterating over this query like this:
while ($cnt-- >= 0 && ($hit = $hits -> next))
{
$data = $hit->get_fields() ;
....
}
While this loop runs documents are deleted from the index by another
process. Without this other process everything is fine. When this deletion
is happeing, it seems that half of the documents that are returned by $hits
-> next are wrong, which mean I get a totaly different document, which
should not be part of the resultset.
I thought that a searcher operates on a snapshot, so changes that happens at
the same time does not influence the query. Is this wrong? If yes, how could
I make sure my resultset is not corrupted?
What kind of a Searcher is this? If it's an IndexSearcher operating
on a local index, I don't see how it could happen. But if it's a
ClusterSearcher, then it would be possible if the remotes are being
refreshed.
Marvin Humphrey
!DSPAM:416,564db01923795029453755!
