View cluster status
GET _cluster/health
http://192.168.1.200:9200/_cluster/health (GET)
{
"cluster_name": "cluster-es-node",
#node name "status": "green", // status (three status grenn marks are working long and yellow means there are warnings for allocation or other red means no use)
" timed_out ": false, #Whether to timeout
" number_of_nodes ": 1, #
" number_of_data_nodes ": 1,
" active_primary_shards ": 0, #active shards available when
active" active_shards ": 0, #active shards
" relocating_shards ": 0,
"initializing_shards": 0,
"unassigned_shards": 0, # is the allocated shard "
delayed_unassigned_shards": 0,
"number_of_pending_tasks": 0,
"number_of_in_flight_fetch": 0,
"task_max_waiting_in_queue_millis": 0,
"active_shards_percent_as_number": 100.0
}
Index operation
1. Add index
put request
http://192.168.1.200:9200/index_temp
index_temp (index name)
josn parameter
{
"settings": {
"index":
{
"number_of_shards": "2", // number of main shards
" number_of_replicas ":" 0 "// Number of backup shards
}
}
}
Return information
{
"acknowledged": true,
"shards_acknowledged": true,
"index": "index_temp"
} means successful creation
2. Query index interface
http://192.168.1.200:9200/index_temp (GET)
返回
{
"index_temp": {
"aliases": {}, （别名）
"mappings": {}, （数据类型）
"settings": {
"index": {
"creation_date": "1586669227509", （创建时间
"number_of_shards": "2", (主分片)
"number_of_replicas": "0", （备份分片
"uuid": "oIz2uXxYTSKE4l7J4epsrA", (udid
"version": {
"created": "7060299" (版本
},
"provided_name": "index_temp"(Index name) } } }
}
3. Delete the index
http://192.168.1.200:9200/index_temp (DELETE) request
to view the deleted again
Query all
