ElasticSearch(十三) Indices Administration

IndicesAdminClient indicesAdminClient = client.admin().indices();

Create Index

client.admin().indices().prepareCreate("twitter").get();

   Index Settings

client.admin().indices().prepareCreate("twitter")
        .setSettings(Settings.builder()             

                .put("index.number_of_shards", 3)
                .put("index.number_of_replicas", 2)
        )
        .get();       

static final Builder builder = Settings.builder().put("index.analysis.search_analyzer.default.type", "ik_smart")
.put("index.analysis.analyzer.default.type", "ik_max_word").put("index.mapping.total_fields.limit", 30000);

index.mapping.total_fields.limit 默认值：1000

Refresh

client.admin().indices().prepareRefresh().get(); 

client.admin().indices()
        .prepareRefresh("twitter")               

        .get();
client.admin().indices()
        .prepareRefresh("twitter", "company")   

        .get();

Get Settings

GetSettingsResponse response = client.admin().indices()
        .prepareGetSettings("company", "employee").get();                           

for (ObjectObjectCursor<String, Settings> cursor : response.getIndexToSettings()) { 

    String index = cursor.key;                                                      

    Settings settings = cursor.value;                                               

    Integer shards = settings.getAsInt("index.number_of_shards", null);             

    Integer replicas = settings.getAsInt("index.number_of_replicas", null);         

}

Update Indices Settings

client.admin().indices().prepareUpdateSettings("twitter")   

        .setSettings(Settings.builder()                     

        .put("index.number_of_replicas", 0)
     ).get();