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在Elasticsearch中,数据备份和迁移通常使用snapshot和restore功能来完成。以下是使用Elasticsearch的slotstore插件进行备份和恢复的示例代码:
备份数据到共享存储库(repository):
# 在Elasticsearch中添加一个共享存储库 PUT /_snapshot/my_backup { "type": "fs", "settings": { "location": "/path/to/shared/storage" } } # 创建一个备份 POST /_snapshot/my_backup/snapshot_1 { "indices": "index_1,index_2" }
恢复数据:
# 首先,确保Elasticsearch中已经定义了repository # 从备份中恢复所有索引 POST /_snapshot/my_backup/snapshot_1/_restore # 或者,仅恢复特定索引 POST /_snapshot/my_backup/snapshot_1/_restore { "indices": "index_1", "rename_pattern": "index_1", "rename_replacement": "restored_index_1" }