[IMPALA-6555] Clean up relationship between DiskIoMgr::min_buffer_size_ and BufferPool::min_buffer_len_

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Later
• Component/s: Backend
• Target Version: Product Backlog
• Epic Color: ghx-label-8
• Assignee: Unassigned
• Reporter: Tim Armstrong
• Created: 21/Feb/18 23:39
• Updated: 09/Jan/21 01:56
• Resolved: 09/Jan/21 01:56

Description

They are always the same value in practice, obtained from --min_buffer_size. We should probably get rid of DiskIoMgr::min_buffer_size_ and fix up all references to it.

Issue Links

• depends upon: IMPALA-4835 HDFS scans should operate with a constrained number of I/O buffers