Panagiotis Garefalakis created HIVE-24721: ---------------------------------------------
Summary: Align CacheWriter bufferSize with Llap max alloc Key: HIVE-24721 URL: https://issues.apache.org/jira/browse/HIVE-24721 Project: Hive Issue Type: Sub-task Reporter: Panagiotis Garefalakis Before bumping to ORC-1.6, LLAP_ALLOCATOR_MAX_ALLOC value was also used as the ORC CacheWriter buffer size. As per ORC-238, the max bufferSize argument can be up to 2^(3*8 - 1) -- i.e., less than 8Mb and since we enforce the size to be power of 2 the next available is 4Mb. In HIVE-23553 we decouple the two configuration (LLAP max alloc and CacheWriter buffer size) with the first one being 16Mb, and the latter 4Mb -- this ticket is to investigate if there is a need for these two conf to convergence. More details: https://github.com/apache/hive/pull/1823#pullrequestreview-575698916 -- This message was sent by Atlassian Jira (v8.3.4#803005)