elasticsearch 数据备份

ES数据备份找了一些方法，发现elasticdump 这个工具不错

elasticdump --input=http://192.168.0.92:9200/hs2840 --output ./hs2840_data_201905.json --type=data

type:可以导出数据或者mapping

Examples:

# Copy an index from production to staging with mappings:
elasticdump
--input=http://production.es.com:9200/my_index
--output=http://staging.es.com:9200/my_index
--type=mapping
elasticdump
--input=http://production.es.com:9200/my_index
--output=http://staging.es.com:9200/my_index
--type=data

# Backup index data to a file:
elasticdump
--input=http://production.es.com:9200/my_index
--output=/data/my_index_mapping.json
--type=mapping
elasticdump
--input=http://production.es.com:9200/my_index
--output=/data/my_index.json
--type=data

# Backup and index to a gzip using stdout:
elasticdump
--input=http://production.es.com:9200/my_index
--output=$
| gzip > /data/my_index.json.gz

# Backup the results of a query to a file
elasticdump
--input=http://production.es.com:9200/my_index
--output=query.json
--searchBody '{"query":{"term":{"username": "admin"}}}'