No hit using scan/scroll with has_parent filter

Elastic Stack Elasticsearch
4

Going further on the subject, I have tried to work around the issue using a
filtered query, to no avail.

So basically, if I want to fetch all child document IDs that match a given
criterion on their parent, I have either to

  • use a query - which in my case requires that I duplicate the existing
    code that builds a filter, building a query instead
  • or do it in 2 requests, one to count the totalHits matching the criteria,
    the second using totalHits in the "size" parameter to fetch all IDs at once

Is there any other solution?

Le jeudi 9 janvier 2014 10:18:25 UTC+1, Jean-Baptiste Lièvremont a écrit :

Hi Martijn,

Thanks for your answer. You can find in the gist below some HTTP
conversations made on my ES 0.90.6 node, as well as a link to the Java code
responsible for the calls:
The attached files describe HTTP exchanges made with the REST API of an ElasticSearch 0.90.6 node, to describe the problem encountered in this thread: https://groups.google.com/forum/#!topic/elasticsearch/pfQ1wiTeObk The node has one index named 'rules' with 2 types ('rule' and 'active_rule'). The Java code responsible for the calls can be found at: https://github.com/SonarSource/sonar/blob/master/sonar-server/src/main/java/org/sonar/server/rule/ProfileRules.java?source=cc#L116 · GitHub

Please note that the issue appears only when combining scan/scroll with
has_parent filter, as it seems to work using a has_parent query instead.

Best regards,
-- Jean-Baptiste Lièvremont

Le jeudi 9 janvier 2014 00:18:14 UTC+1, Martijn v Groningen a écrit :

Hi Jean,

Can you share how you execute the scan request with the has_parent
filter? (via a gist or something like that)

Martijn

On 8 January 2014 15:17, Jean-Baptiste Lièvremont <
jean-baptist...@sonarsource.com> wrote:

Hi folks,

I use a parent/child mapping configuration which works flawlessly with
"classic" search requests, e.g using has_parent to find child documents
with criteria on the parent documents.

I am trying to get all child document IDs that match a given set of
criteria using scan and scroll, which also works well - until I introduce
the has_parent filter, in which case the scroll request returns no hit
(although total_hits is correct).

Is it a known issue?

I can provide sample mapping files and queries with associated/expected
results. Please note that this behavior has been noticed on 0.90.6 but is
still present in 0.90.9.

Thanks, best regards,
-- Jean-Baptiste Lièvremont

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Met vriendelijke groet,

Martijn van Groningen

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