Dear elasticsearch technology experts,I have a elasticsearch index which size is almost 18Gb,and the amount of documents is about 400000.There are 3 nodes in the elasticserch cluster,and each nodes server is 2Cpu 4Gb memory. It costs almost 90ms to execute a dsl to get search response based on 40K documents. How can I optimize the mapping settings or the query dsl to improve query performance? Based on what principles to solve this problem?
The mapping settings of my index is as follows:
{
"settings" : {
"similarity": {
"scripted_tfidf": {
"type": "scripted",
"script": {
"source": "double tf = doc.freq; return query.boost * tf;"
}
},
"scripted_tfidf_new": {
"type": "scripted",
"script": {
"source": "double tf = doc.freq; return query.boost * 1;"
}
}
},
"analysis": {
"normalizer": {
"lowercase_normalizer": {
"type": "custom",
"char_filter": [],
"filter": ["lowercase"]
}},
"char_filter" : {
"my_filter" : {
"type" : "mapping",
"mappings" : [":=>,",".=>,","!=>,","؛=>,","*=>,","/=>,",")=>,","(=>,","+=>,","-=>,","_=>,","$=>,","@=>,","£=>,","¢=>,","¥=>,","^=>,","°=>,","==>,","{=>,","}=>,","✓=>,","™=>,","®=>,","©=>,","٪=>,","~=>,","`=>,","|=>,","•=>,","√=>,","÷=>,","×=>,","∆=>,","<=>,",">=>,","?=>,",";=>,","。=>,","，=>,","；=>,","#=>,","%=>,","：=>,","“=>,","”=>,","'=>,"]
}
},
"filter": {
"stop_filter":{
"type" : "stop",
"stopwords": "_english_"
},
"pinyin_filter" : {
"remove_duplicated_term" : "true",
"keep_joined_full_pinyin" : "true",
"none_chinese_pinyin_tokenize" : "false",
"type" : "pinyin",
"lowercase": true,
"keep_none_chinese_in_joined_full_pinyin" : "true",
"keep_full_pinyin" : "false"
}
},
"tokenizer" : {
"my_ngram" : {
"token_chars" : [
"letter",
"digit",
"punctuation",
"symbol"
],
"min_gram" : "2",
"type" : "ngram",
"max_gram" : "3"
},
"my_edge_ngram": {
"token_chars": [
"letter",
"digit",
"punctuation",
"symbol",
"whitespace"
],
"min_gram": "1",
"type": "edge_ngram",
"max_gram": "20"
},
"edge_ngram_letter_digit": {
"token_chars": [
"letter",
"digit"
],
"min_gram": "1",
"type": "edge_ngram",
"max_gram": "30"
}
},
"analyzer" : {
"my_analyze" : {
"char_filter":["my_filter"],
"tokenizer":"standard",
"filter":["lowercase","stop_filter"]
},
"ik_pinyin_analyzer" : {
"filter" : [
"pinyin_filter"
],
"tokenizer" : "my_ngram"
},
"my_analyze_edge_ngram": {
"tokenizer": "my_edge_ngram",
"filter": "lowercase"
},
"edge_ngram_letter_digit_analyze": {
"tokenizer": "edge_ngram_letter_digit",
"filter": "lowercase"
}
}
},
"index" : {
"number_of_shards" : "3",
"number_of_replicas" : "0"
}
},
"mappings" : {
"dynamic" : "strict",
"properties" : {
"name_lang" : {
"properties": {
"ru": {
"type" : "text",
"store" : true,
"similarity":"scripted_tfidf_new",
"analyzer": "my_analyze",
"fields" : {
"keyword_field" : {
"type" : "keyword",
"similarity":"scripted_tfidf_new",
"normalizer" : "lowercase_normalizer"
},
"edge_ngram_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "my_analyze_edge_ngram"
},
"edge_ngram_letter_digit_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "edge_ngram_letter_digit_analyze"
}
}
},
"zh-cn": {
"type" : "text",
"store" : true,
"similarity":"scripted_tfidf_new",
"fields" : {
"keyword_field" : {
"type" : "keyword",
"similarity":"scripted_tfidf_new",
"normalizer" : "lowercase_normalizer"
},
"pinyin" : {
"type" : "text",
"term_vector" : "with_positions_offsets",
"analyzer" : "ik_pinyin_analyzer",
"similarity" : "scripted_tfidf_new",
"search_analyzer" : "pinyin"
}
,
"edge_ngram_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "my_analyze_edge_ngram"
},
"edge_ngram_letter_digit_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "edge_ngram_letter_digit_analyze"
}
},
"analyzer" : "ik_max_word"
},
"es-es": {
"type" : "text",
"store" : true,
"similarity":"scripted_tfidf_new",
"analyzer": "spanish",
"fields" : {
"keyword_field" : {
"type" : "keyword",
"similarity":"scripted_tfidf_new",
"normalizer" : "lowercase_normalizer"
},
"edge_ngram_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "my_analyze_edge_ngram"
},
"edge_ngram_letter_digit_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "edge_ngram_letter_digit_analyze"
}}
},
"th": {
"type" : "text",
"store" : true,
"similarity":"scripted_tfidf_new",
"analyzer": "thai",
"fields" : {
"keyword_field" : {
"type" : "keyword",
"similarity":"scripted_tfidf_new",
"normalizer" : "lowercase_normalizer"
},
"edge_ngram_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "my_analyze_edge_ngram"
},
"edge_ngram_letter_digit_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "edge_ngram_letter_digit_analyze"
}}
},
"mai": {
"type" : "text",
"store" : true,
"similarity":"scripted_tfidf_new",
"analyzer": "my_analyze",
"fields" : {
"keyword_field" : {
"type" : "keyword",
"similarity":"scripted_tfidf_new",
"normalizer" : "lowercase_normalizer"
},
"edge_ngram_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "my_analyze_edge_ngram"
},
"edge_ngram_letter_digit_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "edge_ngram_letter_digit_analyze"
}}
},
"tl": {
"type" : "text",
"store" : true,
"similarity":"scripted_tfidf_new",
"analyzer": "my_analyze",
"fields" : {
"keyword_field" : {
"type" : "keyword",
"similarity":"scripted_tfidf_new",
"normalizer" : "lowercase_normalizer"
},
"edge_ngram_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "my_analyze_edge_ngram"
},
"edge_ngram_letter_digit_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "edge_ngram_letter_digit_analyze"
}}
},
"ta": {
"type" : "text",
"store" : true,
"similarity":"scripted_tfidf_new",
"analyzer": "my_analyze",
"fields" : {
"keyword_field" : {
"type" : "keyword",
"similarity":"scripted_tfidf_new",
"normalizer" : "lowercase_normalizer"
},
"edge_ngram_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "my_analyze_edge_ngram"
},
"edge_ngram_letter_digit_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "edge_ngram_letter_digit_analyze"
}}
},
"bg": {
"type" : "text",
"store" : true,
"similarity":"scripted_tfidf_new",
"analyzer": "bulgarian",
"fields" : {
"keyword_field" : {
"type" : "keyword",
"similarity":"scripted_tfidf_new",
"normalizer" : "lowercase_normalizer"
},
"edge_ngram_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "my_analyze_edge_ngram"
},
"edge_ngram_letter_digit_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "edge_ngram_letter_digit_analyze"
}}
},
"mk": {
"type" : "text",
"store" : true,
"similarity":"scripted_tfidf_new",
"analyzer": "my_analyze",
"fields" : {
"keyword_field" : {
"type" : "keyword",
"similarity":"scripted_tfidf_new",
"normalizer" : "lowercase_normalizer"
},
"edge_ngram_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "my_analyze_edge_ngram"
},
"edge_ngram_letter_digit_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "edge_ngram_letter_digit_analyze"
}}
},
"lo": {
"type" : "text",
"store" : true,
"similarity":"scripted_tfidf_new",
"analyzer": "my_analyze",
"fields" : {
"keyword_field" : {
"type" : "keyword",
"similarity":"scripted_tfidf_new",
"normalizer" : "lowercase_normalizer"
},
"edge_ngram_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "my_analyze_edge_ngram"
},
"edge_ngram_letter_digit_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "edge_ngram_letter_digit_analyze"
}}
},
"hi": {
"type" : "text",
"store" : true,
"similarity":"scripted_tfidf_new",
"analyzer": "hindi",
"fields" : {
"keyword_field" : {
"type" : "keyword",
"similarity":"scripted_tfidf_new",
"normalizer" : "lowercase_normalizer"
},
"edge_ngram_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "my_analyze_edge_ngram"
},
"edge_ngram_letter_digit_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "edge_ngram_letter_digit_analyze"
}}
},
"de": {
"type" : "text",
"store" : true,
"similarity":"scripted_tfidf_new",
"analyzer": "german",
"fields" : {
"keyword_field" : {
"type" : "keyword",
"similarity":"scripted_tfidf_new",
"normalizer" : "lowercase_normalizer"
},
"edge_ngram_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "my_analyze_edge_ngram"
},
"edge_ngram_letter_digit_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "edge_ngram_letter_digit_analyze"
}}
}
}
},
"name_lang_list" : {
"type": "text",
"store": true,
"similarity":"scripted_tfidf_new",
"analyzer": "my_analyze",
"fields" : {
"keyword_field" : {
"type" : "keyword",
"store": true,
"similarity":"scripted_tfidf_new",
"normalizer" : "lowercase_normalizer"
},
"edge_ngram_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "my_analyze_edge_ngram"
},
"edge_ngram_letter_digit_field": {
"type": "text",
"store": true,
"similarity": "scripted_tfidf_new",
"analyzer": "edge_ngram_letter_digit_analyze"
}
}
},
"des_list" : {
"type": "text",
"store": true,
"analyzer": "my_analyze"
},
}
}
}
And my query dsl is as follows:
{
"explain":"false",
"from": 0,
"size": 50,
"query": {
"dis_max": {
"queries": [
{ "function_score": {
"query": {
"bool": {
"should": [
{
"dis_max": {
"boost": 1,
"queries": [
{"match_phrase": {
"name_lang.zh-cn.pinyin": {
"query":"google", "boost": 20
}}},
{"match_phrase": {
"name_lang.zh-tw.pinyin": {
"query":"google", "boost": 20}
}},
{"match_phrase": {
"name_lang.zh-hk.pinyin": {
"query":"google", "boost": 20}
}},
{"match": {
"name_lang_list": {
"query": "google",
"minimum_should_match": "50%",
"boost": 30,
"fuzziness": "auto",
"prefix_length": 1,
"max_expansions": 10,
"fuzzy_rewrite":"constant_score_boolean"
}}}
]
}},
{"match": {
"description_list": {
"query": "google",
"boost": 2
}}},
{
"dis_max": {
"boost": 120,
"queries": [
{"term": {"name_lang.ru.keyword_field": "google"}},
{"term": {"name_lang.zh-cn.keyword_field": "google"}},
{"term": {"name_lang.es-es.keyword_field": "google"}},
{"term": {"name_lang.th.keyword_field": "google"}},
{"term": {"name_lang.sr.keyword_field": "google"}},
{"term": {"name_lang.kk.keyword_field": "google"}},
{"term": {"name_lang.si.keyword_field": "google"}},
{"term": {"name_lang.ka.keyword_field": "google"}},
{"term": {"name_lang.sk.keyword_field": "google"}},
{"term": {"name_lang.pt-pt.keyword_field": "google"}},
{"term": {"name_lang.sl.keyword_field": "google"}},
{"term": {"name_lang.bn.keyword_field": "google"}},
{"term": {"name_lang.jv.keyword_field": "google"}},
{"term": {"name_lang.bo.keyword_field": "google"}},
{"term": {"name_lang.bs.keyword_field": "google"}},
{"term": {"name_lang.es-us.keyword_field": "google"}},
{"term": {"name_lang.fi.keyword_field": "google"}},
{"term": {"name_lang.be.keyword_field": "google"}},
{"term": {"name_lang.bg.keyword_field": "google"}},
{"term": {"name_lang.zh-hk.keyword_field": "google"}},
{"term": {"name_lang.zh-tw.keyword_field": "google"}},
{"term": {"name_lang.fa.keyword_field": "google"}},
{"term": {"name_lang.ro.keyword_field": "google"}},
{"term": {"name_lang.nl.keyword_field": "google"}},
{"term": {"name_lang.as.keyword_field": "google"}},
{"term": {"name_lang.vi.keyword_field": "google"}},
{"term": {"name_lang.my-mm.keyword_field": "google"}},
{"term": {"name_lang.nb.keyword_field": "google"}},
{"term": {"name_lang.ja.keyword_field": "google"}},
{"term": {"name_lang.ne.keyword_field": "google"}},
{"term": {"name_lang.az.keyword_field": "google"}},
{"term": {"name_lang.it.keyword_field": "google"}},
{"term": {"name_lang.am.keyword_field": "google"}},
{"term": {"name_lang.iw.keyword_field": "google"}},
{"term": {"name_lang.et.keyword_field": "google"}},
{"term": {"name_lang.eu.keyword_field": "google"}},
{"term": {"name_lang.ar.keyword_field": "google"}},
{"term": {"name_lang.pt-br.keyword_field": "google"}},
{"term": {"name_lang.lt.keyword_field": "google"}},
{"term": {"name_lang.pl.keyword_field": "google"}},
{"term": {"name_lang.da.keyword_field": "google"}},
{"term": {"name_lang.tr.keyword_field": "google"}},
{"term": {"name_lang.hi.keyword_field": "google"}},
{"term": {"name_lang.de.keyword_field": "google"}}
]
}},
{
"dis_max": {
"boost": 20,
"queries": [
{"prefix": {"name_lang.ru.keyword_field": "google"}},
{"prefix": {"name_lang.zh-cn.keyword_field": "google"}},
{"prefix": {"name_lang.es-es.keyword_field": "google"}},
{"prefix": {"name_lang.th.keyword_field": "google"}},
{"prefix": {"name_lang.mai.keyword_field": "google"}},
{"prefix": {"name_lang.tl.keyword_field": "google"}},
{"prefix": {"name_lang.ta.keyword_field": "google"}},
{"prefix": {"name_lang.gu.keyword_field": "google"}},
{"prefix": {"name_lang.cs.keyword_field": "google"}},
{"prefix": {"name_lang.te.keyword_field": "google"}},
{"prefix": {"name_lang.pa.keyword_field": "google"}},
{"prefix": {"name_lang.km.keyword_field": "google"}},
{"prefix": {"name_lang.kn.keyword_field": "google"}}
{"prefix": {"name_lang.sk.keyword_field": "google"}},
{"prefix": {"name_lang.de.keyword_field": "google"}}
]
}},
{
"dis_max": {
"boost": 5,
"queries": [
{"prefix": {"name_lang.ru": "google"}},
{"prefix": {"name_lang.zh-cn": "google"}},
{"prefix": {"name_lang.es-es": "google"}},
{"prefix": {"name_lang.th": "google"}},
{"prefix": {"name_lang.mai": "google"}},
{"prefix": {"name_lang.tl": "google"}},
{"prefix": {"name_lang.ta": "google"}},
{"prefix": {"name_lang.gu": "google"}},
{"prefix": {"name_lang.cs": "google"}},
{"prefix": {"name_lang.te": "google"}},
{"prefix": {"name_lang.pa": "google"}},
{"prefix": {"name_lang.km": "google"}},
{"prefix": {"name_lang.kn": "google"}},
{"prefix": {"name_lang.or": "google"}},
{"prefix": {"name_lang.sv": "google"}},
{"prefix": {"name_lang.ko": "google"}},
{"prefix": {"name_lang.sw": "google"}},
{"prefix": {"name_lang.gl": "google"}},
{"prefix": {"name_lang.en-us": "google"}},
{"prefix": {"name_lang.ca": "google"}},
{"prefix": {"name_lang.sr": "google"}},
{"prefix": {"name_lang.kk": "google"}},
{"prefix": {"name_lang.si": "google"}},
{"prefix": {"name_lang.ka": "google"}},
{"prefix": {"name_lang.sk": "google"}},
{"prefix": {"name_lang.pt-pt": "google"}},
{"prefix": {"name_lang.sl": "google"}},
{"prefix": {"name_lang.bn": "google"}},
{"prefix": {"name_lang.jv": "google"}},
{"prefix": {"name_lang.bo": "google"}},
{"prefix": {"name_lang.bs": "google"}},
{"prefix": {"name_lang.es-us": "google"}},
{"prefix": {"name_lang.de": "google"}}
]
}}
]
}
},
"script_score":{
"script": {
"source": "if(doc['order_num'].size() > 0 && doc['order_num'].value > 0 && doc['popularity_long'].size() > 0 && doc['popularity_long'].value > 0) {return 30.0 * Math.log1p(doc['popularity_long'].value) / Math.log1p(20) + 5.0 * Math.log1p(doc[\"download_num\"].value) / Math.log1p(1000000000) + 30.0 * Math.log1p(10.0 * doc['order_num'].value) / Math.log1p(1000); } if(doc['popularity_long'].size() > 0 && doc['popularity_long'].value > 0) {return 30.0 * Math.log1p(doc['popularity_long'].value) / Math.log1p(20) + 5.0 * Math.log1p(doc[\"download_num\"].value) / Math.log1p(1000000000) / Math.log1p(1000); } if(doc['order_num'].size() > 0 && doc['order_num'].value > 0) {return 5.0 * Math.log1p(doc[\"download_num\"].value) / Math.log1p(1000000000) + 30.0 * Math.log1p(10.0 * doc['order_num'].value) / Math.log1p(1000); } else return 5.0 * Math.log1p(doc[\"download_num\"].value) / Math.log1p(1000000000);"
}
},
"boost_mode": "sum",
"max_boost": 300
}}
]
}
}
}
