ElasticSearch Index API

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Index添加或者更新一种类型JSON文档在一个特定的索引，让它可以被搜索。比如下面，添加：

curl-XPUT'http://localhost:9200/twitter/tweet/1'-d'{

"user":"kimchy",

"post_date":"2009-11-15T14:12:12",

"message":"trying out Elasticsearch"

执行结果：

{"_shards":{"total":10,"failed":0,"successful":10},

"_index":"twitter","_type":"tweet","_id":"1","_version":1,"created":true}

total - Indicates to how many shard copies (primary and replica shards) the index operation should be executed on.
successful- Indicates the number of shard copies the index operation succeeded on.成功successful至少为1
failures - An array that contains replication related errors in the case an index operation failed on a replica shard.

上面的这个指令会自动创建索引和类型，如果他们不存在，创建应该是使用默认的配置，不过我们可以手动创建索引和type。

另外下面还可以有个版本控制：

curl-XPUT'localhost:9200/twitter/tweet/1?version=2'-d'{"message":"elasticsearch now has versioning support, double cool!"}'

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