弹性搜索：快照未创建

Question

我正在运行此命令

http://localhost:9200/_snapshot/titan_es_backup?pretty

输出

{
  "titan_es_backup" : {
    "type" : "fs",
    "settings" : {
      "compress" : "true",
      "location" : "/home/manish/Softwares/DataBackUp/ES"
    }
  }
}

再次执行此命令

http://localhost:9200/_snapshot/titan_es_backup/snapshot_1?wait_for_completion=false

输出

{"error":"SnapshotMissingException[[titan_es_backup:snapshot_1] is missing]; nested: FileNotFoundException[/home/manish/Softwares/DataBackUp/ES/snapshot-snapshot_1 (No such file or directory)]; ","status":404}

我哪里错了？