是否可以使用elasticsearch获取快照并进行恢复，而不松开目标索引中的更新？

Question

我能够运行策展人从源索引中获取快照，并在目标索引中还原相同的快照。但是，在下一次快照和还原操作之后，我在目标索引上执行的所有更新都丢失了。

是否可以指定不覆盖目标索引的更新？

源索引： test_index

目标索引： dest_test_index

快照-action.yml文件

actions:
  1:
    action: snapshot
    description: Snapshot selected indices to 'repository' with the snapshot name or name pattern in 'name'.  Use all other options as assigned
    options:
      repository: esbackup
      name:
      wait_for_completion: True
      max_wait: 3600
      wait_interval: 10
    filters:
    - filtertype: pattern
      kind: regex
      value: '^(test_index)$'
      exclude:

还原-action.yml文件

actions:
  1:
    action: create_index
    description: "Create the temporary index with dest_index_v2 name"
    options:
      name: dest_index_v2
  2:
    action: close
    description: >-
      Close index dest_indiex_v2.
    options:
      ignore_empty_list: True
      skip_flush: False
      delete_aliases: False
      ignore_sync_failures: True
      disable_action: False
    filters:
    - filtertype: pattern
      kind: prefix
      value: dest_index_v2
  3:
    action: restore
    description: >-
      Restore test_index from the most recent snapshot in temp index dest_index_v2.
    options:
      repository: esbackup
      # If name is blank, the most recent snapshot by age will be selected
      name:
      # If indices is blank, all indices in the snapshot will be restored
      indices: ['test_index']
      rename_pattern: test_index
      rename_replacement: dest_index_v2
      wait_for_completion: True
      max_wait: 3600
      wait_interval: 10
    filters:
    - filtertype: none
  4:
    action: open
    description: >-
      Open index pattern dest_index_v2.
    options:
      disable_action: False
    filters:
    - filtertype: pattern
      kind: prefix
      value: dest_index_v2
      exclude:
  5:
    description: "Reindex dest_index_v2 into dest_test_index"
    action: reindex
    options:
      wait_interval: 9
      max_wait: -1
      request_body:
        source:
          index: dest_index_v2
        dest:
          index: dest_test_index
    filters:
    - filtertype: none
  6:
    action: delete_indices
    description: >-
      Delete index dest_index_v2. Ignore the error if the filter does not result in an
      actionable list of indices (ignore_empty_list) and exit cleanly.
    options:
      ignore_empty_list: False
      disable_action: False
    filters:
    - filtertype: pattern
      kind: prefix
      value: dest_index_v2

Answer 1

如果您正在寻找某个elasticsearch设置，它将在更新的目标索引中与源索引合并(您正在从快照中还原该索引)，那么简单的回答是NO。

您可以编写自定义代码来执行以下操作，以确保目标索引更新不会丢失。

1. 将源索引(test_index)还原到集群中的临时索引，让我们将此索引称为temp_index
2. 从temp_index检索文档，并使用op_type=create操作类型create插入目标索引(dest_test_index)，确保索引操作在索引中已存在该id的文档时失败。您可以参考文档这里

希望这能解决你的问题。