Index Lifecycle Management

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Apart from working with data stream and rollover alias, ILM can also apply on individual indices with rollover action disabled.

Individual Index

For example, create a ILM policy that has hot(no rollover) and cold tiers and deletion phase, using this ILM policy with index template or updating on existing indices.

Although no rollover, it is still helpful to manage the retention and data tiers of individual index.

Switch Policy

To switch ILM policy for data stream or alias or individual, reference.

Debug ILM Error

There is an example steps about debugging the ILM error, reference.