1. 分片設置，不分片

http://localhost:9200/test_index/_settings/
{
  "index": {
    "number_of_replicas": 0
  }
}

2. 刷新設置，不刷新

http://localhost:9200/test_index/_settings/
{
  "index": {
    "refresh_interval": "-1"
  }
}

3. translog 大小設置，調大 默認512M

http://localhost:9200/test_index/_settings/
{
  "index.translog.flush_threshold_size": "1024mb"
}
 

4. 如果是SSD硬盤，修改段合並速率

http://localhost:9200/_cluster/settings/
{
  "persistent": {
    "indices.store.throttle.max_bytes_per_sec": "200mb"
  }
}

http://localhost:9200/_cluster/settings/
{
  "transient": {
    "indices.store.throttle.type": "none"
  }
}

全量dump後，再恢復一下

1. 分片設置

http://localhost:9200/test_index/_settings/
{
  "index": {
    "number_of_replicas": 5
  }
}
 

2. 刷新設置，不刷新

http://localhost:9200/test_index/_settings/
{
  "index": {
    "refresh_interval": "1s"
  }
}

3. translog 大小設置

http://localhost:9200/test_index/_settings/
{
  "index.translog.flush_threshold_size": "512mb"
}

當然應該使用bulk模式， elasticsearch單次提交數據盡量在15M以內。

elasticsearch 寫入優化