Dear ES group,
we've been using ES in production for a while and test eagerly all
new-coming features such as cardinality and others.
We try data modeling with parent-child relations (ES version 1.4.0.Beta1, 8
nodes, EC2 r3.xlarge, ssd, lot ram etc.)
With data model of:
*Parent*
{
"key": "value"
}
and a timeline with children, holding metrics:
*Child* (type "metrics")
{
"day": "2014-10-20",
"count: 10
}
We update metric documents and properly index them with script+upsert.
The problem is that the query below* yields in 2 different results in round
robin way. *
E.g. first time you call it you receive the first number, a second after
you receive the second and again back to the first, etc.
{
"size": 0,
"query": {
"match_all": {}
},
"aggs": {
"MY_FIELD": {
"terms": {
"field": "FIELD-XYZ" // parent term aggregation
},
"aggs": {
"children": {
"children": {
"type": "metrics" // child aggregation of
type "metrics"
},
"aggs": {
"requests": {
"sum": {
"field": "count" // target aggregation
within child documents
}
}
}
}
}
}
}
}
Result A:
"aggregations": {
"MY_FIELD": {
"doc_count_error_upper_bound": 0,
"buckets": [
{
"key": "xx",
"doc_count": 283322,
"children": {
"doc_count": 3740372,
"requests": {
"value": *5801652297*
}
}
}
]
}
}
Result B:
"aggregations": {
"MY_FIELD": {
"doc_count_error_upper_bound": 0,
"buckets": [
{
"key": "xx",
"doc_count": 302421,
"children": {
"doc_count": 1877361,
"requests": {
"value": *2965346170*
}
}
}
]
}
}
The problem is that switching A to B back and forth is pretty stable
and reproducible.
ES logs are clear.
Could someone help towards some ideas here?
Thank you!
Vlad
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