OpenSearch: Intermittent mapper_parsing_exception

Hey there,

I have recently set up an OpenSearch cluster to store vector data for KNN searching. For the most part everything is working fine, however every 9-10 days the cluster enters a state where I receive a mapper_parsing_exception that the cluster cannot parse the vector that is being inserted (the vectors being inserted are always the same dimension). This has happened once when the cluster was briefly in a yellow state, but most recently happened in a green state. I did some checks on disc space and that whenever I see the error pop up but everything seems fine there and once I make any change to the cluster configuration (e.g. change the instance type and change it back again) the issue resolves itself.

Just wondering if anyone has encountered this issue before and how have they gotten around it if so.

Thanks in advance!

Cluster information: Instance type: m6g.xlarge.search Number of nodes: 10 Version: OpenSearch 2.3