Is it possible to update index settings by query?

Question

I updated the index settings from readonly to writable by running this command:

PUT index_name*/_settings
{
  "index.blocks.write": null
}

However, I'd like to rever this to readonly for some documents within the index. Is it possible to update the settings for specific documents?

Answer 1

No, this is an index-wide setting. You've set it on multiple indices using the index_name* wildcard so the only thing you can do now is unset it either using the same wildcard or by targeting an individual index.