Hi there guys. I'm trying to set my indices.fielddata.cache.size to 75% (with a circuit breaker of 60%, so we get alerts before we're close to out of memory), and I just had a couple of questions.
First, is that number 75% of the max memory on the machine, or is that 75% of ES_HEAP_SIZE? I figure its the latter, but I want to make sure I have a clear understanding.
Secondly, I have applied this setting in my elasticsearch.yml file, so it will take effect on start up, and when I build new nodes, however is there an api call to alter that setting on live nodes?? I'd prefer not to restart all of our data nodes if I do not have to in order to turn on this setting.