1、属性说明和介绍
执行命令:
GET /test_index/test_type/_search?timeout=1s
运行后的结果如下:
{
"took": 4,
"timed_out": false,
"_shards": {
"total": 3,
"successful": 3,
"failed": 0
},
"hits": {
"total": 11,
"max_score": 1,
"hits": [
{
"_index": "test_index",
"_type": "test_type",
"_id": "5",
"_score": 1,
"_source": {
"test_field": "test3"
}
},
{
"_index": "test_index",
"_type": "test_type",
"_id": "6",
"_score": 1,
"_source": {
"test_field": "test6"
}
},
{
"_index": "test_index",
"_type": "test_type",
"_id": "7",
"_score": 1,
"_source": {
"test_field": "test7"
}
},
{
"_index": "test_index",
"_type": "test_type",
"_id": "2",
"_score": 1,
"_source": {
"test_field": "test2"
}
},
{
"_index": "test_index",
"_type": "test_type",
"_id": "4",
"_score": 1,
"_source": {
"test_field": "test4"
}
},
{
"_index": "test_index",
"_type": "test_type",
"_id": "AWPE334kH290KcMbohDu",
"_score": 1,
"_source": {
"test_content": "my test2"
}
},
{
"_index": "test_index",
"_type": "test_type",
"_id": "AWPE4LcyH290KcMbohDx",
"_score": 1,
"_source": {
"test_content": "my test2"
}
},
{
"_index": "test_index",
"_type": "test_type",
"_id": "AWPE4ARFH290KcMbohDv",
"_score": 1,
"_source": {
"test_content": "my test2"
}
},
{
"_index": "test_index",
"_type": "test_type",
"_id": "AWPE4JVHH290KcMbohDw",
"_score": 1,
"_source": {
"test_content": "my test2"
}
},
{
"_index": "test_index",
"_type": "test_type",
"_id": "3",
"_score": 1,
"_source": {
"test_field": "test3"
}
}
]
}
}
属性介绍:
took:整个搜索花费了多少毫秒
hits.total:本次搜索,返回几条结果
hits.max_score:本次搜索的所有结果中,最大的相关度分数是多少,每一条document对于search的相关度,越相关,_score分数越大,排位越靠前
hits.hits:默认查询前10条数据,完整数据,_score降序排序。
**shards:**shards fail的条件(primary和replica全部挂掉),不影响其他shard。默认情况下来说,一个搜索请求,会打到一个index的所有primary shard上去,当然了,每个primary shard都可能会有一个或多个replic shard,所以请求也可以到primary shard的其中一个replica shard上去。
2、timeout图解介绍
timeout:默认无timeout,,latency平衡completeness,手动指定timeout,timeout查询执行机制
timeout的单位可以是:毫秒,秒,分。
例:
timeout=10ms,timeout=1s,timeout=1m
GET /test_index/test_type/_search?timeout=1ms