Sean Busbey busbey

HBASE 2.4.7 Release Notes

These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.

HBASE-26274 | Major | Create an option to reintroduce BlockCache to mapreduce job

Introduce `hfile.onheap.block.cache.fixed.size` and default to disable. When using ClientSideRegionScanner, it will be enabled with a fixed size for caching INDEX/LEAF_INDEX block when a client, e.g. snapshot scanner, scans the entire HFile and does not need to seek/reseek to index block multiple times.

	#!/bin/bash -e

	if [[ "true" = "${DEBUG}" ]]; then
	set -x
	printenv
	fi

	##To set jenkins Environment Variables:
	export TOOLS_HOME=/home/jenkins/tools
	export FINDBUGS_HOME=${TOOLS_HOME}/findbugs/latest

	#!/usr/bin/env python2
	# Copyright 2020 Sean Busbey
	#
	# Permission is hereby granted, free of charge, to any person obtaining a copy of
	# this software and associated documentation files (the "Software"), to deal in
	# the Software without restriction, including without limitation the rights to
	# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
	# of the Software, and to permit persons to whom the Software is furnished to do
	# so, subject to the following conditions:
	#