Versions (relevant - OpenSearch/Dashboard/Server OS/Browser): 3.7 Describe the issue: I have two ISM policies. Initial policy takes care of the current live index and creates a restored index with remote*. The second policy is to delete the restored indices after the retention period. The initi…

@Anthony - No k8s involved or operator involved.

@Anthony - I am running into this issue. All of our indices are datastreams and they do have that setting “index.hidden”: true based on this issue . I changed just the convert_to_index_remote action of the ISM policy like this. "convert_index_to_remote": { "repository": "osdev-tsgi-hvuv-ism", "sna…

@muraliv your approach to remove the hidden tag indeed works as expected, however can you check whether creation_date of the indices in question predates their cleanup policy’s last_updated_time. If last_updated_time is newer/later than the indices, they will not attach, as snapshot restore preserv…

@Anthony - What is the solution for this scenario ? We ended up modifying the cleanup policy for remote indices couple of times to add “error notification” and also to use the rollover age instead of the index age. There could be other potential reasons for us to update the clean up policy. Is th…

Hi @Anthony I have the index creation.date newer than the ISM policy last_update_time, but still the policy is not getting attached. I looked at the index settings and the index_state_management.enabled is false for these indices. I also looked at the cluster settings and it’s set to true. Wha…

Hi @Anthony I found the root cause for this. This is the scenario I was running into. When I update an ISM policy (the initial policy) , I manually remove the ISM policy using PUT plugins/_ism/remove/.ds-logs* and add the new policy using PUT plugins/_ism/add/.ds-logs*. This causes the index.plu…

ISM policies for Live & Restored Indices

OpenSearch

Anthony June 19, 2026, 11:35am 2

@muraliv this appears to be very similar case to this forum topic. Which seems to point to a possible race condition in the scheduler described in issue 275.

How are you running this cluster, is in in k8s? Are you using operator?

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ISM policies for Live & Restored Indices

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