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Elastic Stack 6.5 cross cluster replication - ElasticSearch - [mail # user]
...Cross cluster replication is not using reindex from remote. This page described in a general way how CCR works:
   Author: Martijn Van Groningen , 2018-11-16, 13:14
[expand - 7 more] - Need multiple post_filter condition - ElasticSearch - [mail # user]
...[quote="fardhana, post:15, topic:156255"]What's magic behind that clause?[/quote]A `bool` query with only should clauses automatically sets `minimum_should_match` to `1` if it has not been s...
   Author: Martijn Van Groningen , 2018-11-14, 14:17
[LUCENE-6354] Add minChildren and maxChildren options to ToParentBlockJoinQuery - Lucene - [issue]
...This effectively allows to ignore parent documents with too few children documents via the minChildren option or too many matching children documents via the maxChildren option....    Author: Martijn van Groningen , 2018-10-25, 19:48
Performance issues in large bool filter query - ElasticSearch - [mail # user]
...Normal pagination (`from` parameter) should not be used when fetching many documents. Instead search after should be used. This works differently. Instead of specifying an offset in subseque...
   Author: Martijn Van Groningen , 2018-10-23, 08:39
[LUCENE-7394] Make MemoryIndex immutable - Lucene - [issue]
...The MemoryIndex itself should just be a builder that constructs an IndexReader instance. The whole notion of freezing a memory index should be removed.While we change this we should also cle...    Author: Martijn van Groningen , 2018-10-11, 14:21
[LUCENE-3759] Support joining in a distributed environment. - Lucene - [issue]
...Add two more methods in JoinUtil to support joining in a distributed manner. Method to retrieve all from values. Method to create a TermsQuery based on a set of from terms.With these two met...    Author: Martijn van Groningen , 2018-08-07, 15:08
[LUCENE-8120] Fix LatLonBoundingBox's toString() method - Lucene - [issue]    Author: Martijn van Groningen , 2018-04-04, 21:51
[expand - 1 more] - Access nested/children doc values with Lucene from FilterScript plugin - ElasticSearch - [mail # user]
...[quote="franck.lefebure, post:3, topic:124833"]I don't think that what you suggest meet our needs, In a nested filtered context, we can actually access to the doc values of the nested entiti...
   Author: Martijn Van Groningen , 2018-03-23, 07:21
Percolator type : Why fields are not part of the percolator type settings? - ElasticSearch - [mail # user]
...Hi @pulse14, when the `percolate` query is percolating a document it indexes it into a temporary in-memory index. In order to do that the `percolate` query needs to know how to index that do...
   Author: Martijn Van Groningen , 2018-03-12, 07:15
[expand - 1 more] - Inner_hits query extremly slow - ElasticSearch - [mail # user]
...From your second hot thread I can see that a lot of time spent on source manipulation for the nested documents. [Fetching _source from nested document has an overhead](
   Author: Martijn Van Groningen , 2017-11-29, 16:38