[elasticsearch笔记] reindex

最新推荐文章于 2025-06-17 11:00:00 发布

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本文主要介绍了Elasticsearch的reindex功能，强调在执行reindex操作前需要手动创建目标索引，并确保所有索引处于启用状态。

重点

reindex 不会复制新建/目标索引，所以在执行操作前，需要自己主动创建目标索引
reindex 要求所有索引enabled

reindex

# verstion_type: external, internal
POST _reindex
{
  "conflicts": "proceed",
  "source": {
    "index": "twitter",
    "query": {
      "term": {
        "user": "kimchy"
      }
    }
  },
  "dest": {
    "index": "new_twitter",
    "op_type": "create",
    "version_type": "internal"
  }
}

POST _reindex
{
  "source": {
    "index": ["twitter", "blog"]
  },
  "dest": {
    "index": "all_together"
  }
}

POST _reindex
{
  "size": 10000,
  "source": {
    "index": "twitter",
    "_source": ["user", "_doc"],
    "sort": { "date": "desc" }
  },
  "dest": {
    "index": "new_twitter",
    "routing": "=cat"
  }
}

POST _reindex
{
  "source": {
    "index": "twitter"
  },
  "dest": {
    "index": "new_twitter",
    "version_type": "external"
  },
  "script": {
    "source": "if (ctx._source.foo == 'bar') {ctx._version++; ctx._source.remove('foo')}",
    "lang": "painless"
  }
}

POST _reindex
{
  "source": {
    "index": "source",
    "size": 100
  },
  "dest": {
    "index": "dest",
    "routing": "=cat"
  }
}

POST _reindex
{
  "source": {
    "index": "source",
    "slice": {
      "id": 0,
      "max": 2
    }
  },
  "dest": {
    "index": "dest",
    "pipeline": "some_ingest_pipeline"
  }
}

POST _reindex
{
  "source": {
    "remote": {
      "host": "http://otherhost:9200",
      "username": "user",
      "password": "pass",
      "socket_timeout": "1m",
      "connect_timeout": "10s"
    },
    "index": "source",
    "query": {
      "match": {
        "test": "data"
      }
    }
  },
  "dest": {
    "index": "dest"
  }
}

# replace flag with tag
POST _reindex
{
  "source": {
    "index": "test"
  },
  "dest": {
    "index": "test2"
  },
  "script": {
    "source": "ctx._source.tag = ctx._source.remove(\"flag\")"
  }
}

POST _reindex?slices=5&refresh
{
  "source": {
    "index": "twitter"
  },
  "dest": {
    "index": "new_twitter"
  }
}

# The script below extracts the date from the index name and creates a new index with -1 appended. All data from metricbeat-2016.05.31 will be reindexed into metricbeat-2016.05.31-1.
POST _reindex
{
  "source": {
    "index": "metricbeat-*"
  },
  "dest": {
    "index": "metricbeat"
  },
  "script": {
    "lang": "painless",
    "source": "ctx._index = 'metricbeat-' + (ctx._index.substring('metricbeat-'.length(), ctx._index.length())) + '-1'"
  }
}