- Does broker use these in any way:
If not, then are these properties only used by Historicals or by any other node too?
- druid.processing.buffer.sizeBytes is it per thread or across threads?
Eg, if i set the value to 1gb, will each processing thread use 1 gb or will it be 1gb shared across all threads?
Does the local cache use off heap or heap?
The default value of druid.broker.cache.unCacheable is [“groupBy”, “select”].
Does that imply that groupBy and select queries are not recommended for caching?
If yes, then doesnt that make the cache pretty useless since those are the most frequently performed queries?
If no, then why are those 2 made default?
what is the purpose of this? If i set it to false, I guess the cache never gets populated thus never has anything in it.
Isnt that the same as disabling the cache?
- what factors determine the size of Xmx and MaxDirectMemorySize for the jvm that is running broker?
Is MaxDirectMemorySize = processing.buffer.sizeBytes * processing.numThreads ?
this endpoint does not work on 0.6.160.
What is the euqivalent url for this version of druid?