Re: maybe waste on blockCache

2016-06-20 Thread Enis Söztutar
LRUBlock cache does not reserve the space for the in_memory tier. The space is used for other tiers as well as long as there is space. You can read the code at LRUBlockCache.evict() to learn more. Enis On Thu, Jun 16, 2016 at 1:21 AM, WangYQ wrote: > in hbase

Re: Re: maybe waste on blockCache

2016-06-19 Thread Heng Chen
If BlockCache is on, the block will be cached in memory. Please see documents about blockcache, http://hbase.apache.org/book.html#block.cache 2016-06-17 8:57 GMT+08:00 WangYQ : > > > I set all user tables with blockCache on, but set the IN_MEMORY conf to > false > >

Re: maybe waste on blockCache

2016-06-16 Thread Heng Chen
bq. if we do not set any user tables IN_MEMORY to true, then the whole hbase just need to cache hbase:meta data to in_memory LruBlockCache. You set blockcache to be false for other tables? 2016-06-16 16:21 GMT+08:00 WangYQ : > in hbase 0.98.10, if we use