// 调试时学习源码一个途径
org.elasticsearch.client.node.NodeClient#executeLocally(org.elasticsearch.action.ActionType, Request, org.elasticsearch.action.ActionListener)
org.elasticsearch.client.node.NodeClient#transportAction
--- value transportAction = org.elasticsearch.action.search.TransportSearchAction
org.elasticsearch.action.support.TransportAction#execute(Request, org.elasticsearch.action.ActionListener)
org.elasticsearch.action.support.TransportAction#execute(org.elasticsearch.tasks.Task, Request, org.elasticsearch.action.ActionListener)
org.elasticsearch.action.support.TransportAction.RequestFilterChain#RequestFilterChain // 构建
org.elasticsearch.action.support.TransportAction.RequestFilterChain#proceed // 处理请求链
org.elasticsearch.action.search.TransportSearchAction#doExecute // 最终处理do
// searchRequest 参数
SearchRequest{searchType=QUERY_THEN_FETCH, indices=[habit_search_release], indicesOptions=IndicesOptions[ignore_unavailable=false, allow_no_indices=true, expand_wildcards_open=true, expand_wildcards_closed=false, allow_aliases_to_multiple_indices=true, forbid_closed_indices=true, ignore_aliases=false, ignore_throttled=true], types=[], routing='null', preference='null', requestCache=null, scroll=null, maxConcurrentShardRequests=0, batchedReduceSize=512, preFilterShardSize=128, allowPartialSearchResults=null, localClusterAlias=null, getOrCreateAbsoluteStartMillis=-1, ccsMinimizeRoundtrips=true, source={"query":{"bool":{"must":[{"match":{"title":{"query":"张柏芝,","operator":"OR","prefix_length":0,"max_expansions":50,"fuzzy_transpositions":true,"lenient":false,"zero_terms_query":"NONE","auto_generate_synonyms_phrase_query":true,"boost":1.0}}}],"adjust_pure_negative":true,"boost":1.0}}}}
// local执行
org.elasticsearch.action.search.TransportSearchAction#executeLocalSearch
org.elasticsearch.action.search.TransportSearchAction#executeSearch(org.elasticsearch.action.search.SearchTask, org.elasticsearch.action.search.TransportSearchAction.SearchTimeProvider, org.elasticsearch.action.search.SearchRequest, org.elasticsearch.action.OriginalIndices, java.util.List, java.util.function.BiFunction, org.elasticsearch.cluster.ClusterState, java.util.Map, org.elasticsearch.action.ActionListener, org.elasticsearch.action.search.SearchResponse.Clusters)
org.elasticsearch.action.search.TransportSearchAction#executeSearch(org.elasticsearch.action.search.SearchTask, org.elasticsearch.action.search.TransportSearchAction.SearchTimeProvider, org.elasticsearch.action.search.SearchRequest, org.elasticsearch.action.OriginalIndices, java.lang.String[], java.util.Map>, java.util.Map, java.util.Map, java.util.List, java.util.function.BiFunction, org.elasticsearch.cluster.ClusterState, org.elasticsearch.action.ActionListener, org.elasticsearch.action.search.SearchResponse.Clusters)
org.elasticsearch.cluster.node.DiscoveryNodes--org.elasticsearch.cluster.ClusterState#nodes
nodes=
[ox-whc-dQ6a5NY424Q-8JQ=>{node-1}{ox-whc-dQ6a5NY424Q-8JQ}{9efezmJPS0WHrqIwFS_j9Q}{172.16.218.164}{172.16.218.164:9300}{dilm}{ml.machine_memory=16362606592, xpack.installed=true, ml.max_open_jobs=20}]
data=
[ox-whc-dQ6a5NY424Q-8JQ=>{node-1}{ox-whc-dQ6a5NY424Q-8JQ}{9efezmJPS0WHrqIwFS_j9Q}{172.16.218.164}{172.16.218.164:9300}{dilm}{ml.machine_memory=16362606592, xpack.installed=true, ml.max_open_jobs=20}]
// 提交到线程池执行
org.elasticsearch.action.search.TransportSearchAction#searchAsyncAction
org.elasticsearch.action.search.SearchQueryThenFetchAsyncAction#SearchQueryThenFetchAsyncAction 构造
// start
org.elasticsearch.action.search.AbstractSearchAsyncAction#start
// run
org.elasticsearch.action.search.AbstractSearchAsyncAction#run
遍历每一个分片
// 单个分片执行
org.elasticsearch.action.search.AbstractSearchAsyncAction#performPhaseOnShard
// 单个分片上do执行逻辑
org.elasticsearch.action.search.SearchQueryThenFetchAsyncAction#executePhaseOnShard
// 构建发往单个分片的请求--对象
org.elasticsearch.action.search.AbstractSearchAsyncAction#buildShardSearchRequest
org.elasticsearch.search.internal.ShardSearchRequest#ShardSearchRequest(org.elasticsearch.action.OriginalIndices, org.elasticsearch.action.search.SearchRequest, org.elasticsearch.index.shard.ShardId, int, org.elasticsearch.search.internal.AliasFilter, float, long, java.lang.String, java.lang.String[])
// 发射请求
org.elasticsearch.action.search.SearchTransportService#sendExecuteQuery(org.elasticsearch.transport.Transport.Connection, org.elasticsearch.search.internal.ShardSearchRequest, org.elasticsearch.action.search.SearchTask, org.elasticsearch.action.search.SearchActionListener)
---org.elasticsearch.transport.TransportService#sendChildRequest(org.elasticsearch.transport.Transport.Connection, java.lang.String, org.elasticsearch.transport.TransportRequest, org.elasticsearch.tasks.Task, org.elasticsearch.transport.TransportRequestOptions, org.elasticsearch.transport.TransportResponseHandler)
------org.elasticsearch.transport.TransportService#sendRequest(org.elasticsearch.transport.Transport.Connection, java.lang.String, org.elasticsearch.transport.TransportRequest, org.elasticsearch.transport.TransportRequestOptions, org.elasticsearch.transport.TransportResponseHandler)
// 继续
-----------org.elasticsearch.transport.TransportInterceptor.AsyncSender#sendRequest
// 发送请求
org.elasticsearch.transport.TransportService#sendRequestInternal
org.elasticsearch.transport.Transport.Connection#sendRequest 给数据节点 9300发布请求
// 查询时分词
GET /habit_search_release/_search { "query": { "bool": { "must": [ { "match": { "title": { "query": "张柏芝,张柏芝,张柏芝,张柏芝,", "analyzer": "my_hanlp_analyzer" } } } ] } } }
// lucene
org.elasticsearch.action.ActionListener#onResponse(Response) 监听节点
org.elasticsearch.search.SearchService#executeQueryPhase(org.elasticsearch.search.internal.ShardSearchRequest, org.elasticsearch.action.search.SearchTask) // 查询任务
// 解析查询请求source
org.elasticsearch.search.SearchService#parseSource
// 解析查询
org.elasticsearch.index.query.QueryShardContext#toQuery(org.elasticsearch.index.query.QueryBuilder, org.elasticsearch.common.CheckedFunction)
// bool解析
// org.elasticsearch.index.search.MatchQuery#parse
org.elasticsearch.index.search.MatchQuery#setAnalyzer(java.lang.String) 解析器设定
立flag 后面-----org.elasticsearch.index.search.MatchQuery#getAnalyzer 获取解析器 直接使用
....
最终配置完MatchQuery
// MatchQuery执行解析，用了上面立的flag 解析器（因为查询语句中指定解析器）
// org.elasticsearch.index.search.MatchQuery.MatchQueryBuilder 构建完成MatchQueryBuilde
短语斜普 phraseSlop
// org.elasticsearch.index.search.MatchQuery.MatchQueryBuilder#createQuery 构建查询
org.apache.lucene.analysis.Analyzer#tokenStream(java.lang.String, java.lang.String) 开始执行分词了！！！
// org.elasticsearch.index.search.MatchQuery.MatchQueryBuilder#createFieldQuery(org.apache.lucene.analysis.TokenStream, org.elasticsearch.index.search.MatchQuery.Type, org.apache.lucene.search.BooleanClause.Occur, java.lang.String, int) 查询文本分词
即 analyzing query text
// org.apache.lucene.analysis.CachingTokenFilter#fillCache 分词fill
// org.elasticsearch.index.search.MatchQuery.MatchQueryBuilder#analyzeMultiBoolean 复杂case： complex case: multiple positions
// boolean -- should 查询
// 分词执行完回到 org.elasticsearch.search.SearchService#parseSource 继续解析 排序 聚合 版本 高亮等各种查询属性
// org.elasticsearch.search.SearchService#createAndPutContext 搜索上下文
// 根据创建的上下文 回到查询处
org.elasticsearch.search.SearchService#executeQueryPhase(org.elasticsearch.search.internal.ShardSearchRequest, org.elasticsearch.action.search.SearchTask)
// org.elasticsearch.search.SearchService#loadOrExecuteQueryPhase 根据分片数 如果是单机拦截到的请求个数和分片数一致
// 执行查询
org.elasticsearch.search.query.QueryPhase#execute(org.elasticsearch.search.internal.SearchContext, org.apache.lucene.search.IndexSearcher, java.util.function.Consumer)
// internal 查询
org.elasticsearch.search.internal.ContextIndexSearcher#searchInternal
