Hey there,
using an old ES version (2.x) I was trying to use a custom configuration regarding threadpool.
currently, nodes have 8 processors. This value is correctly recognized by ES but when I try to increase it, nothing happens.
I specified
threadpool.bulk.type: fixed
threadpool.bulk.size: 16
into every elasticsearch.yml file and then I have fully restarted the cluster.
I tried also to use the dynamic updates of cluster settings withoud any result.
The threadpool size is still capped to 8 and I got this log message:
requested thread pool size [16] for [bulk] is too large; setting to maximum [8] instead
The only way to get it is to specify
processor: 16
in the elasticsearch.yml but I would like to avoid this way. is this the only way to do that?
I saw also github issue. If this is correct, this scenario should be highlighted in the official doc (also the current 7.x).
Anyone can help or address me?