在索引大数据时，如果我删除索引 ElasticSearch 再次创建索引并索引文档而不是给出 Index not exists

Question

我正在为 1000 个批次的大数据编制索引。我有 100000 个文档。如果我直接从弹性搜索中删除索引（来自：http://localhost:9200/_plugin/head/），它会重新创建索引并为新文档编制索引，因此旧文档会丢失。如果索引不存在，我需要通过错误。下面是json查询两条记录（实际是1000条）

{ "index" :  {"_index":"1020","_type":"PROGRAMS","_id":"3149012","_routing":"PROGRAMS"} }
{
  "OBJID": 3149015,
  "MAINTITLE": "SPEAR TALK",
  "A_S_DESC": null,
  "A_S_ORIG_NA": "PFT",
  "EPISODE_NAME": "DEMOPROG",
  "A_S_DURATION": null,
  "A_S_EP_NU": "111",
  "A_S_EP_NA": "DEMOPROG",
  "S_SOM": "10:00:00:00",
  "S_FRAMERAT": 25,
  "A_S_QUALITY": "HD",
  "A_S_TX_TIME": "150200",
  "A_S_TX_DATE": "20150228",
  "TX_DATE_TIME": "20150228150200",
  "REGISTRATION": "20150228",
  "REGISTRATIO2": "150240",
  "REGISTRATION_DATE_TIME": "20150228150240",
  "CreatedOn": "2015-02-28T15:02:40",
  "A_S_VERSION": "MIX",
  "SUG_MAINTITLE": "DEMO PROGRAM 1 EP 111",
  "A_DISPLAY_NA": "DEMO PROGRAM 1",
  "channel": "DEMO-CHANNEL1",
  "CHANNEL_DISPLAY_NA": "DEMO CHANNEL 1",
  "IS_ARCHIVED": "NOT ARCHIVED",
  "IS_TXRC": "TX",
  "OBJECTCLASS": "PROGRAMS",
  "SUB_OBJECTCLASS_FACET": "Assets",
  "OBJECTCLASS_FACET": "Programs",
  "kxjrt94fbr": "kxjrt94fbr",
  "SortOrderValue": "1",
  "VideoURL": null,
  "ThumbURL": null,
  "GENRE": null,
  "S_ArchivedInstanceInfo": null,
  "searchColumn": "SPEAR TALK DEMOPROG DEMO PROGRAM 1",
  "RowNum": 2
}
{ "index" :  {"_index":"1020","_type":"PROGRAMS","_id":"3149015","_routing":"PROGRAMS"} }
{
  "OBJID": 3149015,
  "MAINTITLE": "SPEAR TALK",
  "A_S_DESC": null,
  "A_S_ORIG_NA": "PFT",
  "EPISODE_NAME": "DEMOPROG",
  "A_S_DURATION": null,
  "A_S_EP_NU": "111",
  "A_S_EP_NA": "DEMOPROG",
  "S_SOM": "10:00:00:00",
  "S_FRAMERAT": 25,
  "A_S_QUALITY": "HD",
  "A_S_TX_TIME": "150200",
  "A_S_TX_DATE": "20150228",
  "TX_DATE_TIME": "20150228150200",
  "REGISTRATION": "20150228",
  "REGISTRATIO2": "150240",
  "REGISTRATION_DATE_TIME": "20150228150240",
  "CreatedOn": "2015-02-28T15:02:40",
  "A_S_VERSION": "MIX",
  "SUG_MAINTITLE": "DEMO PROGRAM 1 EP 111",
  "A_DISPLAY_NA": "DEMO PROGRAM 1",
  "channel": "DEMO-CHANNEL1",
  "CHANNEL_DISPLAY_NA": "DEMO CHANNEL 1",
  "IS_ARCHIVED": "NOT ARCHIVED",
  "IS_TXRC": "TX",
  "OBJECTCLASS": "PROGRAMS",
  "SUB_OBJECTCLASS_FACET": "Assets",
  "OBJECTCLASS_FACET": "Programs",
  "kxjrt94fbr": "kxjrt94fbr",
  "SortOrderValue": "1",
  "VideoURL": null,
  "ThumbURL": null,
  "GENRE": null,
  "S_ArchivedInstanceInfo": null,
  "searchColumn": "SPEAR TALK DEMOPROG DEMO PROGRAM 1",
  "RowNum": 2
}

接下来的 1000 个批次将以相同的方式编入索引。我是否需要检查 Index 是否存在？或者有什么方法可以从 ElasticSearch 知道吗？

Answer 1

Elasticsearch 将根据您的对象结构自动创建索引，但请记住，任何自定义字段设置可能无法以这种方式维护。

如果要检查索引是否存在，使用：

curl -XHEAD -i 'http://localhost:9200/your_index'

或您使用的任何客户端的等效项。

如果要停止自动创建索引，请将此添加到 config/elasticsearch.yml：

action.auto_create_index: false

可在此处找到：Automatic index creation

在索引大数据时，如果我删除索引 ElasticSearch 再次创建索引并索引文档而不是给出 Index not exists

While indexing large data, if I delete the index ElasticSearch creating index again and indexing the docs instead of giving Index not exists

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