下图中ElasticSearch的索引名称是?
"_index":"logstash-2020.01.17",
"_type":"doc",
"_id":"3sDqsm8Bu-kTpMz0jqhL",
"_score":1.0,
"_source":{
"@version"："1",
"message":"hadooplogstashhbasejava"
"host"："ddcvc",
"@timestamp":"2020-01-17T09：51：53.596Z"
}
}
A.ddcvc
B.logstash-2020.01.17(正确答案)
C.3sDqsm8Bu-kTpMz0jqhL
D.doc