Drill 1.5.0 Release Notes (Developer Preview)
The following release notes are for the 1.5.0 developer preview of the MapR distribution of Apache Drill. Release notes for prior releases are posted on the Apache Drill web site.
| Version | 1.5.0 (Developer preview) |
| Release Date | February 23, 2016 |
| MapR Version Interoperability | See Interoperability Matrices and Drill Support Matrix |
Noteworthy New Features
This release introduces the following enhancements:
- Improved Memory Allocator - Drill uses a new allocator that improves an operator’s use of direct memory and tracks the memory use more accurately. See Configuring Drill Memory.
- Configurable Caching of Hive Metadata - You can now configure the TTL for the Hive metadata client cache depending on how frequently the Hive metadata is updated. See Hive Metadata Caching.
See Apache Drill 1.5.0 Release Notes for a complete list of JIRAs resolved in the 1.5.0 release.