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Add support for adding new site(s) to site replication (#13696)

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Currently, the new site is expected to be empty
This commit is contained in:
Poorna K
2021-11-30 13:16:37 -08:00
committed by GitHub
parent d21466f595
commit 9ec197f2e8
4 changed files with 261 additions and 103 deletions
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66
cmd/site-replication_test.go Normal file
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// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"testing"
"github.com/minio/madmin-go"
"github.com/minio/minio-go/v7/pkg/set"
)
// TestGetMissingSiteNames
func TestGetMissingSiteNames(t *testing.T) {
testCases := []struct {
currSites []madmin.PeerInfo
oldDepIDs set.StringSet
newDepIDs set.StringSet
expNames []string
}{
// Test1: missing some sites in replicated setup
{
[]madmin.PeerInfo{{Endpoint: "minio1:9000", Name: "minio1", DeploymentID: "dep1"},
{Endpoint: "minio2:9000", Name: "minio2", DeploymentID: "dep2"},
{Endpoint: "minio3:9000", Name: "minio3", DeploymentID: "dep3"}},
set.CreateStringSet("dep1", "dep2", "dep3"),
set.CreateStringSet("dep1"),
[]string{"minio2", "minio3"},
},
// Test2: new site added that is not in replicated setup
{
[]madmin.PeerInfo{{Endpoint: "minio1:9000", Name: "minio1", DeploymentID: "dep1"}, {Endpoint: "minio2:9000", Name: "minio2", DeploymentID: "dep2"}, {Endpoint: "minio3:9000", Name: "minio3", DeploymentID: "dep3"}},
set.CreateStringSet("dep1", "dep2", "dep3"),
set.CreateStringSet("dep1", "dep2", "dep3", "dep4"),
[]string{},
},
// Test3: not currently under site replication.
{
[]madmin.PeerInfo{},
set.CreateStringSet(),
set.CreateStringSet("dep1", "dep2", "dep3", "dep4"),
[]string{},
},
}
for i, tc := range testCases {
names := getMissingSiteNames(tc.oldDepIDs, tc.newDepIDs, tc.currSites)
if len(names) != len(tc.expNames) {
t.Errorf("Test %d: Expected `%v`, got `%v`", i+1, tc.expNames, names)
}
}
}