1164fc60f3
This PR brings semver capabilities in our RPC layer to ensure that we can upgrade the servers in rolling fashion while keeping I/O in progress. This is only a framework change the functionality remains the same as such and we do not have any special API changes for now. But in future when we bring in API changes we will be able to upgrade servers without a downtime. Additional change in this PR is to not abort when serverVersions mismatch in a distributed cluster, instead wait for the quorum treat the situation as if the server is down. This allows for administrator to properly upgrade all the servers in the cluster. Fixes #5393
472 lines
12 KiB
Go
472 lines
12 KiB
Go
/*
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* Minio Cloud Storage, (C) 2016, 2017 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cmd
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import (
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"bytes"
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"errors"
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"fmt"
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"io"
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"net"
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"net/rpc"
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"runtime"
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"testing"
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"golang.org/x/crypto/blake2b"
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)
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// Tests the construction of canonical string by the
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// Stringer method for StorageAPI.
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func TestStorageCanonicalStrings(t *testing.T) {
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testCases := []struct {
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storageAPI StorageAPI
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canonicalPath string
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}{
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// Canonicalized name as unix path.
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{
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storageAPI: &posix{
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diskPath: "/tmp",
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},
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canonicalPath: "/tmp",
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},
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// Canonicalized name as windows path.
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{
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storageAPI: &posix{
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diskPath: "C:/tmp",
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},
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canonicalPath: "C:/tmp",
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},
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// Canonicalized name as unix path.
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{
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storageAPI: &networkStorage{
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rpcClient: newAuthRPCClient(authConfig{
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accessKey: "",
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secretKey: "",
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serverAddr: "localhost:9000",
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serviceEndpoint: "/tmp",
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secureConn: false,
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serviceName: "Storage",
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disableReconnect: true,
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}),
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},
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canonicalPath: "http://localhost:9000/tmp",
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},
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// Canonicalized name as non TLS.
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{
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storageAPI: &networkStorage{
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rpcClient: newAuthRPCClient(authConfig{
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accessKey: "",
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secretKey: "",
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serverAddr: "localhost:9000",
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serviceEndpoint: "C:/tmp",
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secureConn: false,
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serviceName: "Storage",
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disableReconnect: true,
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}),
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},
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canonicalPath: "http://localhost:9000/C:/tmp",
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},
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// Canonicalized name as TLS.
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{
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storageAPI: &networkStorage{
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rpcClient: newAuthRPCClient(authConfig{
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accessKey: "",
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secretKey: "",
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serverAddr: "localhost:9000",
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serviceEndpoint: "C:/tmp",
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secureConn: true,
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serviceName: "Storage",
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disableReconnect: true,
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}),
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},
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canonicalPath: "https://localhost:9000/C:/tmp",
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},
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}
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// Validate all the test cases.
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for i, testCase := range testCases {
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p := testCase.storageAPI
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if p.String() != testCase.canonicalPath {
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t.Errorf("Test %d: Expected %s, got %s", i+1, testCase.canonicalPath, p.String())
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}
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}
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}
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// Tests storage error transformation.
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func TestStorageErr(t *testing.T) {
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unknownErr := errors.New("Unknown error")
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testCases := []struct {
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expectedErr error
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err error
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}{
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{
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expectedErr: nil,
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err: nil,
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},
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{
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expectedErr: io.EOF,
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err: fmt.Errorf("%s", io.EOF.Error()),
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},
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{
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expectedErr: io.ErrUnexpectedEOF,
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err: fmt.Errorf("%s", io.ErrUnexpectedEOF.Error()),
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},
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{
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expectedErr: errDiskNotFoundFromNetError,
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err: &net.OpError{},
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},
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{
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expectedErr: errDiskNotFoundFromRPCShutdown,
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err: rpc.ErrShutdown,
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},
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{
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expectedErr: errUnexpected,
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err: fmt.Errorf("%s", errUnexpected.Error()),
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},
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{
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expectedErr: errDiskFull,
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err: fmt.Errorf("%s", errDiskFull.Error()),
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},
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{
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expectedErr: errVolumeNotFound,
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err: fmt.Errorf("%s", errVolumeNotFound.Error()),
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},
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{
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expectedErr: errVolumeExists,
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err: fmt.Errorf("%s", errVolumeExists.Error()),
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},
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{
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expectedErr: errFileNotFound,
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err: fmt.Errorf("%s", errFileNotFound.Error()),
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},
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{
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expectedErr: errFileAccessDenied,
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err: fmt.Errorf("%s", errFileAccessDenied.Error()),
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},
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{
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expectedErr: errIsNotRegular,
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err: fmt.Errorf("%s", errIsNotRegular.Error()),
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},
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{
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expectedErr: errVolumeNotEmpty,
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err: fmt.Errorf("%s", errVolumeNotEmpty.Error()),
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},
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{
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expectedErr: errVolumeAccessDenied,
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err: fmt.Errorf("%s", errVolumeAccessDenied.Error()),
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},
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{
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expectedErr: errCorruptedFormat,
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err: fmt.Errorf("%s", errCorruptedFormat.Error()),
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},
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{
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expectedErr: errUnformattedDisk,
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err: fmt.Errorf("%s", errUnformattedDisk.Error()),
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},
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{
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expectedErr: errFileNameTooLong,
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err: fmt.Errorf("%s", errFileNameTooLong.Error()),
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},
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{
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expectedErr: errInvalidAccessKeyID,
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err: fmt.Errorf("%s", errInvalidAccessKeyID.Error()),
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},
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{
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expectedErr: errAuthentication,
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err: fmt.Errorf("%s", errAuthentication.Error()),
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},
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{
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expectedErr: errRPCAPIVersionUnsupported,
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err: fmt.Errorf("%s", errRPCAPIVersionUnsupported.Error()),
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},
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{
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expectedErr: errServerTimeMismatch,
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err: fmt.Errorf("%s", errServerTimeMismatch.Error()),
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},
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{
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expectedErr: unknownErr,
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err: unknownErr,
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},
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}
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for i, testCase := range testCases {
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resultErr := toStorageErr(testCase.err)
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if testCase.expectedErr != resultErr {
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t.Errorf("Test %d: Expected %s, got %s", i+1, testCase.expectedErr, resultErr)
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}
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}
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}
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// API suite container common to both FS and XL.
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type TestRPCStorageSuite struct {
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serverType string
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testServer TestServer
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remoteDisks []StorageAPI
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}
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// Setting up the test suite.
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// Starting the Test server with temporary FS backend.
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func (s *TestRPCStorageSuite) SetUpSuite(t *testing.T) {
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s.testServer = StartTestStorageRPCServer(t, s.serverType, 1)
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listenAddress := s.testServer.Server.Listener.Addr().String()
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for _, ep := range s.testServer.Disks {
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// Eventhough s.testServer.Disks is EndpointList, we would need a URLEndpointType here.
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endpoint := ep
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if endpoint.Type() == PathEndpointType {
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endpoint.Scheme = "http"
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}
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endpoint.Host = listenAddress
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storageDisk := newStorageRPC(endpoint)
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s.remoteDisks = append(s.remoteDisks, storageDisk)
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}
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}
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// No longer used with gocheck, but used in explicit teardown code in
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// each test function. Called implicitly by after all tests are run.
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func (s *TestRPCStorageSuite) TearDownSuite(t *testing.T) {
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s.testServer.Stop()
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}
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func TestRPCStorageClient(t *testing.T) {
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// Setup code
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s := &TestRPCStorageSuite{serverType: "XL"}
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s.SetUpSuite(t)
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// Run the test.
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s.testRPCStorageClient(t)
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// Teardown code
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s.TearDownSuite(t)
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}
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func (s *TestRPCStorageSuite) testRPCStorageClient(t *testing.T) {
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// TODO - Fix below tests to run on windows.
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if runtime.GOOS == globalWindowsOSName {
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return
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}
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s.testRPCStorageDisksInfo(t)
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s.testRPCStorageVolOps(t)
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s.testRPCStorageFileOps(t)
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s.testRPCStorageListDir(t)
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}
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// Test storage disks info.
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func (s *TestRPCStorageSuite) testRPCStorageDisksInfo(t *testing.T) {
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for _, storageDisk := range s.remoteDisks {
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diskInfo, err := storageDisk.DiskInfo()
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if err != nil {
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t.Error("Unable to initiate DiskInfo", err)
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}
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if diskInfo.Total == 0 {
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t.Error("Invalid diskInfo total")
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}
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if storageDisk.String() == "" {
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t.Error("String representation of storageAPI should not be empty")
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}
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}
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}
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// Test storage vol operations.
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func (s *TestRPCStorageSuite) testRPCStorageVolOps(t *testing.T) {
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for _, storageDisk := range s.remoteDisks {
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numVols := 0
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err := storageDisk.MakeVol("myvol")
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if err != nil {
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t.Error("Unable to initiate MakeVol", err)
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}
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numVols++
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volInfo, err := storageDisk.StatVol("myvol")
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if err != nil {
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t.Error("Unable to initiate StatVol", err)
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}
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if volInfo.Name != "myvol" {
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t.Errorf("Expected `myvol` found %s instead", volInfo.Name)
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}
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if volInfo.Created.IsZero() {
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t.Error("Expected created time to be non zero")
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}
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for i := 0; i < 10; i++ {
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err = storageDisk.MakeVol(fmt.Sprintf("myvol-%d", i))
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if err != nil {
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t.Error("Unable to initiate MakeVol", err)
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}
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numVols++
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}
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vols, err := storageDisk.ListVols()
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if err != nil {
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t.Error("Unable to initiate ListVol")
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}
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if len(vols) != numVols {
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t.Errorf("Expected %d volumes but found only %d", numVols, len(vols))
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}
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for i := 0; i < 10; i++ {
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err = storageDisk.DeleteVol(fmt.Sprintf("myvol-%d", i))
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if err != nil {
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t.Error("Unable to initiate DeleteVol", err)
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}
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}
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err = storageDisk.DeleteVol("myvol")
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if err != nil {
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t.Error("Unable to initiate DeleteVol", err)
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}
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vols, err = storageDisk.ListVols()
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if err != nil {
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t.Error("Unable to initiate ListVol")
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}
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if len(vols) > 0 {
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t.Errorf("Expected no volumes but found %d", len(vols))
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}
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}
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}
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// Tests all file operations.
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func (s *TestRPCStorageSuite) testRPCStorageFileOps(t *testing.T) {
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for _, storageDisk := range s.remoteDisks {
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err := storageDisk.MakeVol("myvol")
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if err != nil {
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t.Error("Unable to initiate MakeVol", err)
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}
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err = storageDisk.PrepareFile("myvol", "file1", int64(len([]byte("Hello, world"))))
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if err != nil {
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t.Error("Unable to initiate AppendFile", err)
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}
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err = storageDisk.AppendFile("myvol", "file1", []byte("Hello, world"))
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if err != nil {
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t.Error("Unable to initiate AppendFile", err)
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}
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fi, err := storageDisk.StatFile("myvol", "file1")
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if err != nil {
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t.Error("Unable to initiate StatFile", err)
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}
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if fi.Name != "file1" {
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t.Errorf("Expected `file1` but got %s", fi.Name)
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}
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if fi.Volume != "myvol" {
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t.Errorf("Expected `myvol` but got %s", fi.Volume)
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}
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if fi.Size != 12 {
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t.Errorf("Expected 12 but got %d", fi.Size)
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}
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if !fi.Mode.IsRegular() {
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t.Error("Expected file to be regular found", fi.Mode)
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}
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if fi.ModTime.IsZero() {
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t.Error("Expected created time to be non zero")
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}
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buf, err := storageDisk.ReadAll("myvol", "file1")
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if err != nil {
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t.Error("Unable to initiate ReadAll", err)
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}
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if !bytes.Equal(buf, []byte("Hello, world")) {
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t.Errorf("Expected `Hello, world`, got %s", string(buf))
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}
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buf1 := make([]byte, 5)
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n, err := storageDisk.ReadFile("myvol", "file1", 4, buf1, nil)
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if err != nil {
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t.Error("Unable to initiate ReadFile", err)
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}
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if n != 5 {
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t.Errorf("Expected `5`, got %d", n)
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}
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if !bytes.Equal(buf[4:9], buf1) {
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t.Errorf("Expected %s, got %s", string(buf[4:9]), string(buf1))
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}
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blakeHash := func(b []byte) []byte {
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k := blake2b.Sum512(b)
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return k[:]
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}
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verifier := NewBitrotVerifier(BLAKE2b512, blakeHash(buf))
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buf2 := make([]byte, 2)
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n, err = storageDisk.ReadFile("myvol", "file1", 1, buf2, verifier)
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if err != nil {
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t.Error("Error in ReadFile with bitrot verification", err)
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}
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if n != 2 {
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t.Errorf("Expected `2`, got %d", n)
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}
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if !bytes.Equal(buf[1:3], buf2) {
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t.Errorf("Expected %s, got %s", string(buf[1:3]), string(buf2))
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}
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err = storageDisk.RenameFile("myvol", "file1", "myvol", "file2")
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if err != nil {
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t.Error("Unable to initiate RenameFile", err)
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}
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err = storageDisk.DeleteFile("myvol", "file2")
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if err != nil {
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t.Error("Unable to initiate DeleteFile", err)
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}
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err = storageDisk.DeleteVol("myvol")
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if err != nil {
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t.Error("Unable to initiate DeleteVol", err)
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}
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}
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}
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// Tests for ListDirHandler.
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func (s *TestRPCStorageSuite) testRPCStorageListDir(t *testing.T) {
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for _, storageDisk := range s.remoteDisks {
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err := storageDisk.MakeVol("myvol")
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if err != nil {
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t.Error("Unable to initiate MakeVol", err)
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}
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dirCount := 10
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for i := 0; i < dirCount; i++ {
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err = storageDisk.MakeVol(fmt.Sprintf("myvol/mydir-%d", i))
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if err != nil {
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t.Error("Unable to initiate MakeVol", err)
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}
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}
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dirs, err := storageDisk.ListDir("myvol", "")
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if err != nil {
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t.Error(err)
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}
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if len(dirs) != dirCount {
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t.Errorf("Expected %d directories but found only %d", dirCount, len(dirs))
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}
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for i := 0; i < dirCount; i++ {
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err = storageDisk.DeleteVol(fmt.Sprintf("myvol/mydir-%d", i))
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if err != nil {
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t.Error("Unable to initiate DeleteVol", err)
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}
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}
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dirs, err = storageDisk.ListDir("myvol", "")
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if err != nil {
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t.Error(err)
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}
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if len(dirs) != 0 {
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t.Errorf("Expected no directories but found %d", dirCount)
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}
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err = storageDisk.DeleteVol("myvol")
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if err != nil {
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t.Error("Unable to initiate DeleteVol", err)
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}
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vols, err := storageDisk.ListVols()
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if err != nil {
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t.Error(err)
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}
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if len(vols) != 0 {
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t.Errorf("Expected no volumes but found %d", dirCount)
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}
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}
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}
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