perf(cache): Add a sharded map for global cache #2675

	name: ci-dgraph-upgrade-tests
	on:
	pull_request:
	types:
	- opened
	- reopened
	- synchronize
	- ready_for_review
	branches:
	- main
	- 'release/**'
	jobs:
	dgraph-upgrade-tests:
	if: github.event.pull_request.draft == false
	runs-on: warp-ubuntu-latest-x64-16x
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0
	- name: Get Go Version
	run: \|
	#!/bin/bash
	GOVERSION=$({ [ -f .go-version ] && cat .go-version; })
	echo "GOVERSION=$GOVERSION" >> $GITHUB_ENV
	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: ${{ env.GOVERSION }}
	- name: Make Linux Build and Docker Image
	run: make docker-image
	- name: Clean Up Environment
	run: \|
	#!/bin/bash
	# clean cache
	go clean -testcache
	- name: Run Upgrade Tests
	run: \|
	#!/bin/bash
	# go env settings
	export GOPATH=~/go
	export DGRAPH_UPGRADE_MAIN_ONLY=true
	# move the binary
	cp dgraph/dgraph ~/go/bin/dgraph
	# run the tests
	go test -v -timeout=120m -failfast -tags=upgrade ./...
	# clean up docker containers after test execution
	go clean -testcache
	# sleep
	sleep 5

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