ISM action to shrink indexes

quadp77123 · January 26, 2021, 8:02pm

I start my indexes out with 5 shards which works perfectly to distribute the CPU load across my 5 node cluster during ingest. But the daily indexes, once the day is over, I want to shrink them down to 1 shard. Otherwise I would hit the max shards per node limits.

Is there a way to automate shrinking the indexes in such a way via ISM?

dbbaughe · January 27, 2021, 8:20am

Hi @quadp77123,

Not yet supported, but please +1 and/or comment on the feature request here so we can track it

github.com/opendistro-for-elasticsearch/index-management

Shrink number of shards action in Index Management

opened 03:44PM - 04 Apr 20 UTC

closed 09:29PM - 19 May 22 UTC

lovelinuxalot

enhancement action

I would like to place a feature request to add Shrink Index or reduce Number of …Shards in the Index Management actions Just like the Force merge, Read, Replica Count etc. it would be great to have Shrink index, to reduce the number of shards in the actions section. This will be a good feature to have for Managed indices Currently its really hard to manage the indices as they are managed with setting the number of shards at the creation of index and only increasing the number of replicas. I am currently using managed index only for small indices. For larger indices, the indices are managed outside of Index Management by creating new weekly index with less number of shards and reindex all the daily indices in the week into the weekly index Thanks

okapko · April 29, 2022, 10:46am

Hello. I also +1 for this shrink feature.

searchspark2310 · June 28, 2022, 4:57pm

The shrink action is now a thing since version 2.0 but I’ve not been able to get it to work properly. I’m always getting the error " There are no available nodes to move to to execute a shrink. Delaying until node becomes available.". Now that it’s available I’d love to know if anyone else has successfully got this to work. I opened up a new topic on this here: Shrink action says "There are no available nodes to move to to execute a shrink" but there are qualifying nodes .