Greetings All,
I ran into an interesting issue when upgrading from ES version 1.0.1 to
newer versions. In particular, I tested the following with versions 1.2.4,
1.3.4 and 1.4.2.
*summary*
When doing a normal scroll search (not one with a *search_type=scan*), it
appears that the "from" parameter is being ignored.
*example 1 (no scrolling, result is correct)*
In this simplified example, only one document matches the supplied query,
so with *from=1* no documents are returned.
curl
localhost:9200/hm-community-alias/FileInfo/_search?q=parents:c10ed0583104036a94e110f0a8b5fd7d4\&from=1
*example 2 (with scrolling, incorrect result)*
In this example, where we specify the same query and from parameters, but
also specify a scroll parameter, we incorrectly get the single document
returned from the query.
curl
localhost:9200/hm-community-alias/FileInfo/_search?q=parents:c10ed0583104036a94e110f0a8b5fd7d4\&from=1\&scroll=2s
| json
*notes*
1. Both of the above test cases work correctly in version 1.0.1
2. In newer versions (where example 2 fails), I noticed that the *from*
value is not present in the data that was returned from the query.
I understand with with a *search_type=scan, *this would be expected because
sorting is disabled. Also, please note this is a greatly simplified query
just for illustration purposes. I've attached a sample of an actual query
at the bottom of this post, and *it does contain sorting specifications*.
Is this a known issue or is this being done by design in the newer ES
versions. A quick scan through the release notes was unrevealing.
Many thanks for any insight!
--g
*sample of full query*
{
"sort": [
{
"_type": {
"order": "asc",
"ignore_unmapped": true
}
},
{
"name_lower": {
"order": "asc",
"ignore_unmapped": true
}
},
{
"dds_key": {
"order": "asc",
"ignore_unmapped": true
}
}
],
"query": {
"filtered": {
"filter": {
"and": [
{
"or": [
{
"term": {
"parent":
"c10ed0583104012f94e11ad0ac36f2aaf"
}
}
]
},
{
"not": {
"term": {
"vcn": "DeleteMarker"
}
}
},
{
"not": {
"exists": {
"field": "notfinalized"
}
}
}
]
},
"query": {
"match_all": {}
}
}
},
"from": 1,
"size": 1000
}
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