ElasticSearch (1) REST API -- ES server itself

yinl_li

　　http://www.elasticsearch.org/
　　http://elasticsearch-users.115913.n3.nabble.com/
　　https://groups.google.com/forum/?fromgroups=#!forum/elasticsearch
　　##### index settings ##### 
　　http://ES_HOST_SERVER:9200/INDEX_NAME/_settings
　　#####  pretty format ##### 
　　http://ES_HOST_SERVER:9200/153299/_settings?pretty=true
　　#####  index status ##### 
　　http://ES_HOST_SERVER:9200/153299/_status?pretty=true
　　#####  cluster settings ##### 
　　http://ES_HOST_SERVER:9200/_cluster/settings?pretty=true
　　#####  Cluster Health ##### 
　　http://ES_HOST_SERVER:9200/_cluster/health?pretty=true
　　#####  cluster state ##### 
　　http://ES_HOST_SERVER:9200/_cluster/state?pretty=true
　　#####  Cluster Update Settings ##### 
　　curl -XPUT ES_HOST_SERVEAR:9200/_cluster/settings -d '{
　　"persistent" : {
　　"discovery.zen.minimum_master_nodes" : 2
　　}
　　}'
　　#####  Node info ##### 
　　http://ES_HOST_SERVER:9200/_cluster/nodes?pretty=true
　　#####  local node info ##### 
　　http://ES_HOST_SERVER:9200/_cluster/nodes/_local
　　##### node address ##### 
　　http://ES_HOST_SERVER:9200/_cluster/nodes/10.49.216.121
　　#####  node name ##### 
　　http://ES_HOST_SERVER:9200/_cluster/nodes/Eternity
　　#####  Nodes Shutdown ##### 
　　$ curl -XPOST 'http://ES_HOST_SERVEAR:9200/_cluster/nodes/_local/_shutdown'
　　$ curl -XPOST 'http://ES_HOST_SERVEAR:9200/_cluster/nodes/nodeId1,nodeId2/_shutdown'
　　$ curl -XPOST 'http://ES_HOST_SERVEAR:9200/_cluster/nodes/_master/_shutdown'
　　$ curl -XPOST 'http://ES_HOST_SERVEAR:9200/_shutdown'
　　$ curl -XPOST 'http://ES_HOST_SERVEAR:9200/_cluster/nodes/_shutdown'
　　$ curl -XPOST 'http://ES_HOST_SERVEAR:9200/_cluster/nodes/_all/_shutdown'
　　$ curl -XPOST 'http://ES_HOST_SERVEAR:9200/_cluster/nodes/_local/_shutdown?delay=10s'
　　The shutdown API can be disabled by setting action.disable_shutdown in the node configuration.
　　#####  Nodes restart ##### 
　　curl -XPOST 'http://0.42.108.201:9200/_cluster/nodes/_restart'
　　Node can be restated only if the wrapper service is setup.
　　##### Cluster Nodes hot_threads ##### 
　　http://ES_HOST_SERVER:9200/_nodes/hot_threads?pretty=true
　　#####  mapping ##### 
　　#####  get index mapping ##### 
　　http://ES_HOST_SERVER:9200/153299/_mapping
　　host:port/{index}/{type}/_mapping
　　where both {index} and {type} can stand for comma-separated list of names. To get mappings for all indices you can use _all for {index}. The following are some examples:
　　http://ES_HOST_SERVEAR:9200/INDEX_NAME,kimchy/_mapping
　　http://ES_HOST_SERVEAR:9200/_all/tweet,book/_mapping
　　http://ES_HOST_SERVER:9200/_all/_mapping
　　http://ES_HOST_SERVER:9200/_mapping
　　#####  optimize ##### 
　　$ curl -XPOST 'http://ES_HOST_SERVEAR:9200/kimchy,elasticsearch/_optimize'
　　$ curl -XPOST 'http://ES_HOST_SERVEAR:9200/_optimize'
　　#####  flush index ##### 
　　$ curl -XPOST 'http://ES_HOST_SERVEAR:9200/kimchy,elasticsearch/_flush'
　　$ curl -XPOST 'http://ES_HOST_SERVEAR:9200/_flush'
　　#####  Gateway Snapshot  ##### 
　　Note, this API only applies when using shared storage gateway implementation, 
　　and does not apply when using the (default) local gateway
　　$ curl -XPOST 'http://ES_HOST_SERVEAR:9200/kimchy,elasticsearch/_gateway/snapshot'
　　$ curl -XPOST 'http://ES_HOST_SERVEAR:9200/_gateway/snapshot'
　　#####  Indices Update Settings ##### 
　　#####  Indices Stats ##### 
　　http://ES_HOST_SERVER:9200/_stats?pretty=true
　　By default, docs, store, and indexing, get, and search stats are returned, other stats can be enabled as well:
　　docs: The number of docs / deleted docs (docs not yet merged out). Note, affected by refreshing the index.
　　store: The size of the index.
　　indexing: Indexing statistics, can be combined with a comma separated list of types to provide document type level stats.
　　get: Get statistics, including missing stats.
　　search: Search statistics, including custom grouping using the groups parameter (search operations can be associated with one or more groups).
　　merge: merge stats.
　　flush: flush stats.
　　refresh: refresh stats.
　　clear: Clears all the flags (first).
　　Here are some samples:
　　# Get back stats for merge and refresh on top of the defaults
　　curl 'ES_HOST_SERVEAR:9200/_stats?merge=true&refresh=true'
　　# Get back stats just for flush
　　curl 'ES_HOST_SERVEAR:9200/_stats?clear=true&flush=true'
　　# Get back stats for type1 and type2 documents for the my_index index
　　curl 'ES_HOST_SERVEAR:9200/my_index/_stats?clear=true&indexing=true&types=type1,type2
　　#####  Translog ##### 
　　Each shard has a transaction log or write ahead log associated with it. It allows to guarantee that when an index/delete operation occurs, it is applied atomically, while not “committing” the internal lucene index for each request. A flush (“commit”) still happens based on several parameters:
　　SettingDescription
　　index.translog.flush_threshold_opsAfter how many operations to flush. Defaults to 5000.
　　index.translog.flush_threshold_sizeOnce the translog hits this size, a flush will happen. Defaults to 500mb.
　　index.translog.flush_threshold_periodThe period with no flush happening to force a flush. Defaults to 60m.
　　#####  Indices Segments ##### 
　　curl -XGET 'http://ES_HOST_SERVEAR:9200/INDEX_NAME/_segments'
　　curl -XGET 'http://ES_HOST_SERVEAR:9200/INDEX_NAME1,INDEX_NAME2/_segments'
　　curl -XGET 'http://ES_HOST_SERVER:9200/_segments?pretty=true'
　　#####  clear catche ##### 
　　$ curl -XPOST 'http://ES_HOST_SERVEAR:9200/INDEX_NAME/_cache/clear'
　　$ curl -XPOST 'http://ES_HOST_SERVEAR:9200/INDEX_NAME1,INDEX_NAME2/_cache/clear'
　　$ curl -XPOST 'http://ES_HOST_SERVEAR:9200/_cache/clear'
　　The API, by default, will clear all cached. Specific caches can be cleaned explicitly by setting filter, field_data or bloom to true.
　　#####  Indices Exists ##### 
　　curl -XHEAD 'http://ES_HOST_SERVEAR:9200/INDEX_NAME'
　　#####  Types Exists ##### 
　　curl -XHEAD 'http://ES_HOST_SERVEAR:9200/INDEX_NAME/INDEX_TYPE'