Lars George created HBASE-14556: ----------------------------------- Summary: Make prefetchOnOpen configurable for index and/or data blocks Key: HBASE-14556 URL: https://issues.apache.org/jira/browse/HBASE-14556 Project: HBase Issue Type: Bug Components: BlockCache, regionserver Reporter: Lars George
This came up in user discussions. It would be great to add an extra option to the {{CacheConfig}} that allows to specify what blocks are cached during region/file opening. This should allows to set {{BlockIndexOnly}}, {{BloomFilterOnly}}, {{AllIndexesOnly}}, {{DataOnly}}, and {{AllBlocks}}. For large datasets it is not viable to load all blocks into memory, but to speed up access it still makes sense to prefetch the index blocks (being block index and Bloom filter blocks). -- This message was sent by Atlassian JIRA (v6.3.4#6332)