BTW, I'm running ES 1.4.2 with Java 7
On Tuesday, February 24, 2015 at 5:28:50 PM UTC+2, Octavian wrote:
>
> Hello,
>
> I have a problem with the performance of aggregations: The time of the
> aggregation is very worst.
>
> I'm doing the next aggregation over an index with 160M documents (16G of
> data).
>
> {
> "query": {
> "filtered": {
> "filter": {
> "range": {
> "_cache": false,
> "insert_date": {
> "gte": 1424790449432
> }
> }
> }
> }
> },
> "aggs": {
> "tag": {
> "terms": {
> "field": "origin_ip"
> }
> }
> }
> }
>
> Time: 18s. No results found (The result is correct. There are no documents
> with insert_date greater than 1424790449432)
>
> However if I'm doing the next search:
> {
> "query": {
> "filtered": {
> "filter": {
> "range": {
> "_cache": false,
> "insert_date": {
> "gte": 1424790449432
> }
> }
> }
> }
> }
> }
>
> Time: 7ms . No results found. (As I already wrote, the result is correct).
>
> What is happening?
>
> In documentation (
> http://www.elasticsearch.org/guide/en/elasticsearch/guide/current/_filtered_query.html),
>
> it is written :"The query (which happens to include a filter) returns a
> certain subset of documents, and the aggregation operates on those
> documents."
>
> In my situation, there are no elements in the subset of documents returned
> by the filter, so the aggregation should run in the same amount of time
> like the search.
>
> So, how can I improve the performance of that aggregation?
>
> Thank you,
>
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