The query:
{
"aggregations": {
"sigTerms": {
"significant_terms": {
"field": "translatedTitle"
},
"aggs": {
"assocs": {
"significant_terms": {
"field": "translatedTitle"
}
}
}
}
},
"size": 0,
"from": 0,
"query": {
"range": {
"timestamp": {
"lt": "now+1d/d",
"gte": "now/d"
}
}
},
"track_scores": false
}
Error:
{
"bytes_limit": 6844055552,
"bytes_wanted": 6844240272,
"reason": "[request] Data too large, data for [<reused_arrays>] would be larger than limit of [6844055552/6.3gb]",
"type": "circuit_breaking_exception"
}
Index size is 5G. How much memory does the cluster need to execute this query?
You can try to increase the request circuit breaker limit to 41% (default is 40%) in your
elasticsearch.yml
config file and restart your cluster:Or if you prefer to not restart your cluster you can change the setting dynamically using:
Judging by the numbers showing up (i.e.
"bytes_limit": 6844055552, "bytes_wanted": 6844240272
), you're just missing ~190 KB of heap, so increasing by 1% to 41% you should get 17 MB of additional heap (your total heap = ~17GB) for your request breaker which should be sufficient.Just make sure to not increase this value too high, as you run the risk of going OOM since the request circuit breaker also shares the heap with the fielddata circuit breaker and other components.