02.Elasticsearch入门
1.Elasticsearch基本概念
2.使用Restful API简单操作ElasticSearch
[lizhiwei@localhost ~]$ curl -XGET http://192.168.110.100:9200{"status" : 200,"name" : "node000","cluster_name" : "elasticsearchTest","version" : {"number" : "1.7.2","build_hash" : "e43676b1385b8125d647f593f7202acbd816e8ec","build_timestamp" : "2015-09-14T09:49:53Z","build_snapshot" : false,"lucene_version" : "4.10.4"},"tagline" : "You Know, for Search"}
[lizhiwei@localhost ElasticSearch]$ curl -XPUT http://192.168.110.100:9200/test -d @data.json{"acknowledged":true}---------------------------------------------data.json内容{"settings" : {"index" : {"number_of_shards" : "4","number_of_replicas" : "2"}}}
[lizhiwei@localhost ElasticSearch]$ curl -XPUT http://192.168.110.100:9200/test -d @data.json{"acknowledged":true}---------------------------------------------data.json内容{"settings" : {"index" : {"number_of_shards" : "4","number_of_replicas" : "1"}},"mappings" : {"DocType001" : {"_source" : {"enabled" : false},"properties" : {"field1" : {"type" : "string","index" : "not_analyzed"},"field2" : {"type" : "string","store" : "yes"}}}}}
[lizhiwei@localhost ElasticSearch]$ curl -XDELETE http://192.168.110.100:9200/test{"acknowledged":true}
[lizhiwei@localhost ElasticSearch]$ curl -XPOST http://192.168.110.100:9200/test/People?pretty -d '{ "tag" : "bad" }'{"_index" : "test","_type" : "People","_id" : "AVBRAKASiFg2t1Ow-SEW","_version" : 1,"created" : true}
[lizhiwei@localhost ElasticSearch]$ curl -XPOST http://192.168.110.100:9200/test/People/3?pretty -d '{ "tag" : "bad" }'{"_index" : "test","_type" : "People","_id" : "3","_version" : 1,"created" : true}
# 查询所有的index和type的记录curl -XGET http://IP:9200/_search?pretty# 查询某个index下所有type的记录curl -XGET http://IP:9200/<index>/_search?pretty# 查询某个index下某个type下所有的记录curl -XGET http://IP:9200/<index>/<type>/_search?pretty# 使用参数查询所有的记录curl -XGET http://IP:9200/_search?q=tag:bad&pretty;# 使用参数查询某个index下的所有记录curl -XGET http://IP:9200/<index>/_search?q=tag:bad&pretty;# 使用参数查询某个index下某个type下所有的记录curl -XGET http://IP:9200/<index>/<type>/_search?q=tag:bad&pretty;# 使用JSON参数查询所有的记录,-d代表一个JSON格式的对象curl -XGET http://IP:9200/_search?pretty -d '{ "query" : { "term" : { "tag" : "bad" } } }'# 使用JSON参数查询某个index下的所有记录curl -XGET http://IP:9200/<index>/_search?pretty -d '{ "query" : { "term" : { "tag" : "bad" } } }'# 使用JSON参数查询某个index下某个type下所有的记录curl -XGET http://IP:9200/<index>/<type>/_search?pretty -d '{ "query" : { "term" : { "tag" : "bad" } } }'
[lizhiwei@localhost ElasticSearch]$ curl -XGET http://192.168.110.100:9200/test/People/_search?pretty{"took" : 4,"timed_out" : false,"_shards" : {"total" : 5,"successful" : 5,"failed" : 0},"hits" : {"total" : 2,"max_score" : 1.0,"hits" : [ {"_index" : "test","_type" : "People","_id" : "AVBRBKcOiFg2t1Ow-SEy","_score" : 1.0,"_source":{ "tag" : "bad" }}, {"_index" : "test","_type" : "People","_id" : "3","_score" : 1.0,"_source":{ "tag" : "bad" }} ]}}
[lizhiwei@localhost ElasticSearch]$ curl -XPUT http://192.168.110.100:9200/test/People/3?pretty -d '{ "tag" : "good" }'{"_index" : "test","_type" : "People","_id" : "3","_version" : 3,"created" : false}
[lizhiwei@localhost ElasticSearch]$ curl -XDELETE http://192.168.110.100:9200/test/People/3?pretty{"found" : true,"_index" : "test","_type" : "People","_id" : "3","_version" : 4}
[lizhiwei@localhost ElasticSearch]$ curl -XGET http://192.168.110.100:9200/_cluster/health?pretty{"cluster_name" : "elasticsearchTest","status" : "green","timed_out" : false,"number_of_nodes" : 4,"number_of_data_nodes" : 4,"active_primary_shards" : 7,"active_shards" : 14,"relocating_shards" : 0,"initializing_shards" : 0,"unassigned_shards" : 0,"delayed_unassigned_shards" : 0,"number_of_pending_tasks" : 0,"number_of_in_flight_fetch" : 0}
3.常用的Restful API
# 检查集群健康:curl -XGET http://127.0.0.1:9200/_cluster/health?pretty# 关闭整个集群:curl -XPOST http://127.0.0.1:9200/_cluster/nodes/_shutdown# 关闭单台节点:curl -XPOST http://127.0.0.1:9200/_cluster/nodes/{node.name}/_shutdown# 查看集群节点:curl -XGET http://127.0.0.1:9200/_cluster/nodes?pretty# 查看集群状态:curl -XGET http://127.0.0.1:9200/_cluster/state?pretty# 查看节点状态:curl -XGET http://127.0.0.1:9200/_nodes/stats?pretty# 查看本机节点:curl -XGET http://127.0.0.1:9200/_nodes/_local?pretty# 查看集群节点信息:curl -XGET http://127.0.0.1:9200/_cluster/state/nodes# 查看索引映射:curl -XGET http://127.0.0.1:9200/.marvel-kibana/_mapping?pretty以上所有查询都可以针对json节点的子节点进行查询,关键词如:settings, os, process, jvm, thread_pool, network, transport, http , plugins例如:curl -XGET 'http://localhost:9200/_nodes?pretty'curl -XGET 'http://localhost:9200/_nodes/process?pretty'curl -XGET 'http://localhost:9200/_nodes/os?pretty'curl -XGET 'http://localhost:9200/_nodes/settings?pretty'
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