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---
mapped_pages:
- https://www.elastic.co/guide/en/elasticsearch/client/curator/current/option_migration_suffix.html
---
# migration_suffix [option_migration_suffix]
::::{note}
This setting is used by the [reindex](/reference/reindex.md) action.
::::
If the destination index is set to `MIGRATION`, Curator will reindex all selected indices one by one until they have all been reindexed. By configuring `migration_suffix`, a value can be appended to each of those index names. For example, if I were reindexing `index1`, `index2`, and `index3`, and `migration_suffix` were set to `-new`, then the reindexed indices would be named `index1-new`, `index2-new`, and `index3-new`:
```yaml
actions:
1:
description: >-
Reindex index1, index2, and index3 with a suffix of -new, resulting in
indices named index1-new, index2-new, and index3-new
action: reindex
options:
wait_interval: 9
max_wait: -1
migration_suffix: -new
request_body:
source:
index: ["index1", "index2", "index3"]
dest:
index: MIGRATION
filters:
- filtertype: none
```
`migration_suffix` can be used in conjunction with [*migration_prefix*](/reference/option_migration_prefix.md)
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