minio/cmd/peer-rest-client.go
Klaus Post e06168596f
Convert more peer <--> peer REST calls (#19004)
* Convert more peer <--> peer REST calls
* Clean up in general.
* Add JSON wrapper.
* Add slice wrapper.
* Add option to make handler return nil error if no connection is given, `IgnoreNilConn`.

Converts the following:

```
+	HandlerGetMetrics
+	HandlerGetResourceMetrics
+	HandlerGetMemInfo
+	HandlerGetProcInfo
+	HandlerGetOSInfo
+	HandlerGetPartitions
+	HandlerGetNetInfo
+	HandlerGetCPUs
+	HandlerServerInfo
+	HandlerGetSysConfig
+	HandlerGetSysServices
+	HandlerGetSysErrors
+	HandlerGetAllBucketStats
+	HandlerGetBucketStats
+	HandlerGetSRMetrics
+	HandlerGetPeerMetrics
+	HandlerGetMetacacheListing
+	HandlerUpdateMetacacheListing
+	HandlerGetPeerBucketMetrics
+	HandlerStorageInfo
+	HandlerGetLocks
+	HandlerBackgroundHealStatus
+	HandlerGetLastDayTierStats
+	HandlerSignalService
+	HandlerGetBandwidth
```
2024-02-19 14:54:46 -08:00

829 lines
26 KiB
Go

// 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 (
"context"
"encoding/gob"
"encoding/hex"
"encoding/json"
"errors"
"fmt"
"io"
"net/url"
"strconv"
"sync/atomic"
"time"
"github.com/minio/madmin-go/v3"
"github.com/minio/minio/internal/bucket/bandwidth"
"github.com/minio/minio/internal/grid"
xhttp "github.com/minio/minio/internal/http"
"github.com/minio/minio/internal/logger"
"github.com/minio/minio/internal/rest"
xnet "github.com/minio/pkg/v2/net"
)
// client to talk to peer Nodes.
type peerRESTClient struct {
host *xnet.Host
restClient *rest.Client
gridHost string
// Function that returns the grid connection for this peer when initialized.
// Will return nil if the grid connection is not initialized yet.
gridConn func() *grid.Connection
}
// Returns a peer rest client.
func newPeerRESTClient(peer *xnet.Host, gridHost string) *peerRESTClient {
scheme := "http"
if globalIsTLS {
scheme = "https"
}
serverURL := &url.URL{
Scheme: scheme,
Host: peer.String(),
Path: peerRESTPath,
}
restClient := rest.NewClient(serverURL, globalInternodeTransport, newCachedAuthToken())
// Use a separate client to avoid recursive calls.
healthClient := rest.NewClient(serverURL, globalInternodeTransport, newCachedAuthToken())
healthClient.NoMetrics = true
// Construct a new health function.
restClient.HealthCheckFn = func() bool {
ctx, cancel := context.WithTimeout(context.Background(), restClient.HealthCheckTimeout)
defer cancel()
respBody, err := healthClient.Call(ctx, peerRESTMethodHealth, nil, nil, -1)
xhttp.DrainBody(respBody)
return !isNetworkError(err)
}
var gridConn atomic.Pointer[grid.Connection]
return &peerRESTClient{
host: peer, restClient: restClient, gridHost: gridHost,
gridConn: func() *grid.Connection {
// Lazy initialization of grid connection.
// When we create this peer client, the grid connection is likely not yet initialized.
if gridHost == "" {
logger.LogOnceIf(context.Background(), fmt.Errorf("gridHost is empty for peer %s", peer.String()), peer.String()+":gridHost")
return nil
}
gc := gridConn.Load()
if gc != nil {
return gc
}
gm := globalGrid.Load()
if gm == nil {
return nil
}
gc = gm.Connection(gridHost)
if gc == nil {
logger.LogOnceIf(context.Background(), fmt.Errorf("gridHost %q not found for peer %s", gridHost, peer.String()), peer.String()+":gridHost")
return nil
}
gridConn.Store(gc)
return gc
},
}
}
// Wrapper to restClient.Call to handle network errors, in case of network error the connection is marked disconnected
// permanently. The only way to restore the connection is at the xl-sets layer by xlsets.monitorAndConnectEndpoints()
// after verifying format.json
func (client *peerRESTClient) call(method string, values url.Values, body io.Reader, length int64) (respBody io.ReadCloser, err error) {
return client.callWithContext(GlobalContext, method, values, body, length)
}
// Wrapper to restClient.Call to handle network errors, in case of network error the connection is marked disconnected
// permanently. The only way to restore the connection is at the xl-sets layer by xlsets.monitorAndConnectEndpoints()
// after verifying format.json
func (client *peerRESTClient) callWithContext(ctx context.Context, method string, values url.Values, body io.Reader, length int64) (respBody io.ReadCloser, err error) {
if client == nil || !client.IsOnline() {
return nil, errPeerNotReachable
}
if values == nil {
values = make(url.Values)
}
respBody, err = client.restClient.Call(ctx, method, values, body, length)
if err == nil {
return respBody, nil
}
return nil, err
}
// Stringer provides a canonicalized representation of node.
func (client *peerRESTClient) String() string {
return client.host.String()
}
// IsOnline returns true if the peer client is online.
func (client *peerRESTClient) IsOnline() bool {
return client.restClient.IsOnline()
}
// Close - marks the client as closed.
func (client *peerRESTClient) Close() error {
client.restClient.Close()
return nil
}
// GetLocks - fetch older locks for a remote node.
func (client *peerRESTClient) GetLocks() (lockMap map[string][]lockRequesterInfo, err error) {
resp, err := getLocksRPC.Call(context.Background(), client.gridConn(), grid.NewMSS())
if err != nil || resp == nil {
return nil, err
}
return *resp, nil
}
// LocalStorageInfo - fetch server information for a remote node.
func (client *peerRESTClient) LocalStorageInfo(metrics bool) (info StorageInfo, err error) {
resp, err := localStorageInfoRPC.Call(context.Background(), client.gridConn(), grid.NewMSSWith(map[string]string{
peerRESTMetrics: strconv.FormatBool(metrics),
}))
return resp.ValueOrZero(), err
}
// ServerInfo - fetch server information for a remote node.
func (client *peerRESTClient) ServerInfo(metrics bool) (info madmin.ServerProperties, err error) {
resp, err := serverInfoRPC.Call(context.Background(), client.gridConn(), grid.NewMSSWith(map[string]string{peerRESTMetrics: strconv.FormatBool(metrics)}))
return resp.ValueOrZero(), err
}
// GetCPUs - fetch CPU information for a remote node.
func (client *peerRESTClient) GetCPUs(ctx context.Context) (info madmin.CPUs, err error) {
resp, err := getCPUsHandler.Call(ctx, client.gridConn(), grid.NewMSS())
return resp.ValueOrZero(), err
}
// GetNetInfo - fetch network information for a remote node.
func (client *peerRESTClient) GetNetInfo(ctx context.Context) (info madmin.NetInfo, err error) {
resp, err := getNetInfoRPC.Call(ctx, client.gridConn(), grid.NewMSS())
return resp.ValueOrZero(), err
}
// GetPartitions - fetch disk partition information for a remote node.
func (client *peerRESTClient) GetPartitions(ctx context.Context) (info madmin.Partitions, err error) {
resp, err := getPartitionsRPC.Call(ctx, client.gridConn(), grid.NewMSS())
return resp.ValueOrZero(), err
}
// GetOSInfo - fetch OS information for a remote node.
func (client *peerRESTClient) GetOSInfo(ctx context.Context) (info madmin.OSInfo, err error) {
resp, err := getOSInfoRPC.Call(ctx, client.gridConn(), grid.NewMSS())
return resp.ValueOrZero(), err
}
// GetSELinuxInfo - fetch SELinux information for a remote node.
func (client *peerRESTClient) GetSELinuxInfo(ctx context.Context) (info madmin.SysServices, err error) {
resp, err := getSysServicesRPC.Call(ctx, client.gridConn(), grid.NewMSS())
return resp.ValueOrZero(), err
}
// GetSysConfig - fetch sys config for a remote node.
func (client *peerRESTClient) GetSysConfig(ctx context.Context) (info madmin.SysConfig, err error) {
sent := time.Now()
resp, err := getSysConfigRPC.Call(ctx, client.gridConn(), grid.NewMSS())
info = resp.ValueOrZero()
if ti, ok := info.Config["time-info"].(madmin.TimeInfo); ok {
rt := int32(time.Since(sent).Milliseconds())
ti.RoundtripDuration = rt
info.Config["time-info"] = ti
}
return info, err
}
// GetSysErrors - fetch sys errors for a remote node.
func (client *peerRESTClient) GetSysErrors(ctx context.Context) (info madmin.SysErrors, err error) {
resp, err := getSysErrorsRPC.Call(ctx, client.gridConn(), grid.NewMSS())
return resp.ValueOrZero(), err
}
// GetMemInfo - fetch memory information for a remote node.
func (client *peerRESTClient) GetMemInfo(ctx context.Context) (info madmin.MemInfo, err error) {
resp, err := getMemInfoRPC.Call(ctx, client.gridConn(), grid.NewMSS())
return resp.ValueOrZero(), err
}
// GetMetrics - fetch metrics from a remote node.
func (client *peerRESTClient) GetMetrics(ctx context.Context, t madmin.MetricType, opts collectMetricsOpts) (info madmin.RealtimeMetrics, err error) {
values := make(url.Values)
values.Set(peerRESTMetricsTypes, strconv.FormatUint(uint64(t), 10))
for disk := range opts.disks {
values.Add(peerRESTDisk, disk)
}
for host := range opts.hosts {
values.Add(peerRESTHost, host)
}
values.Set(peerRESTJobID, opts.jobID)
values.Set(peerRESTDepID, opts.depID)
v, err := getMetricsRPC.Call(ctx, client.gridConn(), grid.NewURLValuesWith(values))
return v.ValueOrZero(), err
}
func (client *peerRESTClient) GetResourceMetrics(ctx context.Context) (<-chan Metric, error) {
st, err := getResourceMetricsRPC.Call(ctx, client.gridConn(), grid.NewMSS())
if err != nil {
return nil, err
}
ch := make(chan Metric, 1)
go func(ch chan<- Metric) {
defer close(ch)
st.Results(func(metric *Metric) error {
select {
case <-ctx.Done():
return ctx.Err()
case ch <- *metric:
return nil
}
})
}(ch)
return ch, nil
}
// GetProcInfo - fetch MinIO process information for a remote node.
func (client *peerRESTClient) GetProcInfo(ctx context.Context) (info madmin.ProcInfo, err error) {
resp, err := getProcInfoRPC.Call(ctx, client.gridConn(), grid.NewMSS())
return resp.ValueOrZero(), err
}
// StartProfiling - Issues profiling command on the peer node.
func (client *peerRESTClient) StartProfiling(profiler string) error {
values := make(url.Values)
values.Set(peerRESTProfiler, profiler)
respBody, err := client.call(peerRESTMethodStartProfiling, values, nil, -1)
if err != nil {
return err
}
defer xhttp.DrainBody(respBody)
return nil
}
// DownloadProfileData - download profiled data from a remote node.
func (client *peerRESTClient) DownloadProfileData() (data map[string][]byte, err error) {
respBody, err := client.call(peerRESTMethodDownloadProfilingData, nil, nil, -1)
if err != nil {
return
}
defer xhttp.DrainBody(respBody)
err = gob.NewDecoder(respBody).Decode(&data)
return data, err
}
// GetBucketStats - load bucket statistics
func (client *peerRESTClient) GetBucketStats(bucket string) (BucketStats, error) {
resp, err := getBucketStatsRPC.Call(context.Background(), client.gridConn(), grid.NewMSSWith(map[string]string{
peerRESTBucket: bucket,
}))
if err != nil || resp == nil {
return BucketStats{}, err
}
return *resp, nil
}
// GetSRMetrics loads site replication metrics, optionally for a specific bucket
func (client *peerRESTClient) GetSRMetrics() (SRMetricsSummary, error) {
resp, err := getSRMetricsRPC.Call(context.Background(), client.gridConn(), grid.NewMSS())
if err != nil || resp == nil {
return SRMetricsSummary{}, err
}
return *resp, nil
}
// GetAllBucketStats - load replication stats for all buckets
func (client *peerRESTClient) GetAllBucketStats() (BucketStatsMap, error) {
resp, err := getAllBucketStatsRPC.Call(context.Background(), client.gridConn(), grid.NewMSS())
if err != nil || resp == nil {
return BucketStatsMap{}, err
}
return *resp, nil
}
// LoadBucketMetadata - load bucket metadata
func (client *peerRESTClient) LoadBucketMetadata(bucket string) error {
_, err := loadBucketMetadataRPC.Call(context.Background(), client.gridConn(), grid.NewMSSWith(map[string]string{
peerRESTBucket: bucket,
}))
return err
}
// DeleteBucketMetadata - Delete bucket metadata
func (client *peerRESTClient) DeleteBucketMetadata(bucket string) error {
_, err := deleteBucketMetadataRPC.Call(context.Background(), client.gridConn(), grid.NewMSSWith(map[string]string{
peerRESTBucket: bucket,
}))
return err
}
// DeletePolicy - delete a specific canned policy.
func (client *peerRESTClient) DeletePolicy(policyName string) (err error) {
_, err = deletePolicyRPC.Call(context.Background(), client.gridConn(), grid.NewMSSWith(map[string]string{
peerRESTPolicy: policyName,
}))
return err
}
// LoadPolicy - reload a specific canned policy.
func (client *peerRESTClient) LoadPolicy(policyName string) (err error) {
_, err = loadPolicyRPC.Call(context.Background(), client.gridConn(), grid.NewMSSWith(map[string]string{
peerRESTPolicy: policyName,
}))
return err
}
// LoadPolicyMapping - reload a specific policy mapping
func (client *peerRESTClient) LoadPolicyMapping(userOrGroup string, userType IAMUserType, isGroup bool) error {
_, err := loadPolicyMappingRPC.Call(context.Background(), client.gridConn(), grid.NewMSSWith(map[string]string{
peerRESTUserOrGroup: userOrGroup,
peerRESTUserType: strconv.Itoa(int(userType)),
peerRESTIsGroup: strconv.FormatBool(isGroup),
}))
return err
}
// DeleteUser - delete a specific user.
func (client *peerRESTClient) DeleteUser(accessKey string) (err error) {
_, err = deleteUserRPC.Call(context.Background(), client.gridConn(), grid.NewMSSWith(map[string]string{
peerRESTUser: accessKey,
}))
return err
}
// DeleteServiceAccount - delete a specific service account.
func (client *peerRESTClient) DeleteServiceAccount(accessKey string) (err error) {
_, err = deleteSvcActRPC.Call(context.Background(), client.gridConn(), grid.NewMSSWith(map[string]string{
peerRESTUser: accessKey,
}))
return err
}
// LoadUser - reload a specific user.
func (client *peerRESTClient) LoadUser(accessKey string, temp bool) (err error) {
_, err = loadUserRPC.Call(context.Background(), client.gridConn(), grid.NewMSSWith(map[string]string{
peerRESTUser: accessKey,
peerRESTUserTemp: strconv.FormatBool(temp),
}))
return err
}
// LoadServiceAccount - reload a specific service account.
func (client *peerRESTClient) LoadServiceAccount(accessKey string) (err error) {
_, err = loadSvcActRPC.Call(context.Background(), client.gridConn(), grid.NewMSSWith(map[string]string{
peerRESTUser: accessKey,
}))
return err
}
// LoadGroup - send load group command to peers.
func (client *peerRESTClient) LoadGroup(group string) error {
_, err := loadGroupRPC.Call(context.Background(), client.gridConn(), grid.NewMSSWith(map[string]string{
peerRESTGroup: group,
}))
return err
}
func (client *peerRESTClient) ReloadSiteReplicationConfig(ctx context.Context) error {
conn := client.gridConn()
if conn == nil {
return nil
}
_, err := reloadSiteReplicationConfigRPC.Call(ctx, conn, grid.NewMSS())
return err
}
// VerifyBinary - sends verify binary message to remote peers.
func (client *peerRESTClient) VerifyBinary(ctx context.Context, u *url.URL, sha256Sum []byte, releaseInfo string, reader io.Reader) error {
values := make(url.Values)
values.Set(peerRESTURL, u.String())
values.Set(peerRESTSha256Sum, hex.EncodeToString(sha256Sum))
values.Set(peerRESTReleaseInfo, releaseInfo)
respBody, err := client.callWithContext(ctx, peerRESTMethodVerifyBinary, values, reader, -1)
if err != nil {
return err
}
defer xhttp.DrainBody(respBody)
return nil
}
// CommitBinary - sends commit binary message to remote peers.
func (client *peerRESTClient) CommitBinary(ctx context.Context) error {
respBody, err := client.callWithContext(ctx, peerRESTMethodCommitBinary, nil, nil, -1)
if err != nil {
return err
}
defer xhttp.DrainBody(respBody)
return nil
}
// SignalService - sends signal to peer nodes.
func (client *peerRESTClient) SignalService(sig serviceSignal, subSys string, dryRun bool) error {
values := grid.NewMSS()
values.Set(peerRESTSignal, strconv.Itoa(int(sig)))
values.Set(peerRESTDryRun, strconv.FormatBool(dryRun))
values.Set(peerRESTSubSys, subSys)
_, err := signalServiceRPC.Call(context.Background(), client.gridConn(), values)
return err
}
func (client *peerRESTClient) BackgroundHealStatus() (madmin.BgHealState, error) {
resp, err := getBackgroundHealStatusRPC.Call(context.Background(), client.gridConn(), grid.NewMSS())
return resp.ValueOrZero(), err
}
// GetMetacacheListing - get a new or existing metacache.
func (client *peerRESTClient) GetMetacacheListing(ctx context.Context, o listPathOptions) (*metacache, error) {
if client == nil {
resp := localMetacacheMgr.getBucket(ctx, o.Bucket).findCache(o)
return &resp, nil
}
return getMetacacheListingRPC.Call(ctx, client.gridConn(), &o)
}
// UpdateMetacacheListing - update an existing metacache it will unconditionally be updated to the new state.
func (client *peerRESTClient) UpdateMetacacheListing(ctx context.Context, m metacache) (metacache, error) {
if client == nil {
return localMetacacheMgr.updateCacheEntry(m)
}
resp, err := updateMetacacheListingRPC.Call(ctx, client.gridConn(), &m)
if err != nil || resp == nil {
return metacache{}, err
}
return *resp, nil
}
func (client *peerRESTClient) ReloadPoolMeta(ctx context.Context) error {
conn := client.gridConn()
if conn == nil {
return nil
}
_, err := reloadPoolMetaRPC.Call(ctx, conn, grid.NewMSSWith(map[string]string{}))
return err
}
func (client *peerRESTClient) StopRebalance(ctx context.Context) error {
conn := client.gridConn()
if conn == nil {
return nil
}
_, err := stopRebalanceRPC.Call(ctx, conn, grid.NewMSSWith(map[string]string{}))
return err
}
func (client *peerRESTClient) LoadRebalanceMeta(ctx context.Context, startRebalance bool) error {
conn := client.gridConn()
if conn == nil {
return nil
}
_, err := loadRebalanceMetaRPC.Call(ctx, conn, grid.NewMSSWith(map[string]string{
peerRESTStartRebalance: strconv.FormatBool(startRebalance),
}))
return err
}
func (client *peerRESTClient) LoadTransitionTierConfig(ctx context.Context) error {
conn := client.gridConn()
if conn == nil {
return nil
}
_, err := loadTransitionTierConfigRPC.Call(ctx, conn, grid.NewMSSWith(map[string]string{}))
return err
}
func (client *peerRESTClient) doTrace(ctx context.Context, traceCh chan<- []byte, traceOpts madmin.ServiceTraceOpts) {
gridConn := client.gridConn()
if gridConn == nil {
return
}
payload, err := json.Marshal(traceOpts)
if err != nil {
logger.LogIf(ctx, err)
return
}
st, err := gridConn.NewStream(ctx, grid.HandlerTrace, payload)
if err != nil {
return
}
st.Results(func(b []byte) error {
select {
case traceCh <- b:
default:
// Do not block on slow receivers.
// Just recycle the buffer.
grid.PutByteBuffer(b)
}
return nil
})
}
func (client *peerRESTClient) doListen(ctx context.Context, listenCh chan<- []byte, v url.Values) {
conn := client.gridConn()
if conn == nil {
return
}
st, err := listenRPC.Call(ctx, conn, grid.NewURLValuesWith(v))
if err != nil {
return
}
st.Results(func(b *grid.Bytes) error {
select {
case listenCh <- *b:
default:
// Do not block on slow receivers.
b.Recycle()
}
return nil
})
}
// Listen - listen on peers.
func (client *peerRESTClient) Listen(ctx context.Context, listenCh chan<- []byte, v url.Values) {
go func() {
for {
client.doListen(ctx, listenCh, v)
select {
case <-ctx.Done():
return
default:
// There was error in the REST request, retry after sometime as probably the peer is down.
time.Sleep(5 * time.Second)
}
}
}()
}
// Trace - send http trace request to peer nodes
func (client *peerRESTClient) Trace(ctx context.Context, traceCh chan<- []byte, traceOpts madmin.ServiceTraceOpts) {
go func() {
for {
// Blocks until context is canceled or an error occurs.
client.doTrace(ctx, traceCh, traceOpts)
select {
case <-ctx.Done():
return
default:
// There was error in the REST request, retry after sometime as probably the peer is down.
time.Sleep(5 * time.Second)
}
}
}()
}
func (client *peerRESTClient) doConsoleLog(ctx context.Context, kind madmin.LogMask, logCh chan<- []byte) {
st, err := consoleLogRPC.Call(ctx, client.gridConn(), grid.NewMSSWith(map[string]string{
peerRESTLogMask: strconv.Itoa(int(kind)),
}))
if err != nil {
return
}
st.Results(func(b *grid.Bytes) error {
select {
case logCh <- *b:
default:
consoleLogRPC.PutResponse(b)
// Do not block on slow receivers.
}
return nil
})
}
// ConsoleLog - sends request to peer nodes to get console logs
func (client *peerRESTClient) ConsoleLog(ctx context.Context, kind madmin.LogMask, logCh chan<- []byte) {
go func() {
for {
client.doConsoleLog(ctx, kind, logCh)
select {
case <-ctx.Done():
return
default:
// There was error in the REST request, retry after sometime as probably the peer is down.
time.Sleep(5 * time.Second)
}
}
}()
}
// newPeerRestClients creates new peer clients.
// The two slices will point to the same clients,
// but 'all' will contain nil entry for local client.
// The 'all' slice will be in the same order across the cluster.
func newPeerRestClients(endpoints EndpointServerPools) (remote, all []*peerRESTClient) {
if !globalIsDistErasure {
// Only useful in distributed setups
return nil, nil
}
hosts := endpoints.hostsSorted()
remote = make([]*peerRESTClient, 0, len(hosts))
all = make([]*peerRESTClient, len(hosts))
for i, host := range hosts {
if host == nil {
continue
}
all[i] = newPeerRESTClient(host, endpoints.FindGridHostsFromPeer(host))
remote = append(remote, all[i])
}
if len(all) != len(remote)+1 {
logger.LogIf(context.Background(), fmt.Errorf("WARNING: Expected number of all hosts (%v) to be remote +1 (%v)", len(all), len(remote)))
}
return remote, all
}
// MonitorBandwidth - send http trace request to peer nodes
func (client *peerRESTClient) MonitorBandwidth(ctx context.Context, buckets []string) (*bandwidth.BucketBandwidthReport, error) {
values := grid.NewURLValuesWith(map[string][]string{
peerRESTBuckets: buckets,
})
return getBandwidthRPC.Call(ctx, client.gridConn(), values)
}
func (client *peerRESTClient) GetPeerMetrics(ctx context.Context) (<-chan Metric, error) {
resp, err := getPeerMetricsRPC.Call(ctx, client.gridConn(), grid.NewMSS())
if err != nil {
return nil, err
}
ch := make(chan Metric)
go func() {
defer close(ch)
for _, m := range resp.Value() {
if m == nil {
continue
}
select {
case <-ctx.Done():
return
case ch <- *m:
}
}
}()
return ch, nil
}
func (client *peerRESTClient) GetPeerBucketMetrics(ctx context.Context) (<-chan Metric, error) {
resp, err := getPeerBucketMetricsRPC.Call(ctx, client.gridConn(), grid.NewMSS())
if err != nil {
return nil, err
}
ch := make(chan Metric)
go func() {
defer close(ch)
for _, m := range resp.Value() {
if m == nil {
continue
}
select {
case <-ctx.Done():
return
case ch <- *m:
}
}
}()
return ch, nil
}
func (client *peerRESTClient) SpeedTest(ctx context.Context, opts speedTestOpts) (SpeedTestResult, error) {
values := make(url.Values)
values.Set(peerRESTSize, strconv.Itoa(opts.objectSize))
values.Set(peerRESTConcurrent, strconv.Itoa(opts.concurrency))
values.Set(peerRESTDuration, opts.duration.String())
values.Set(peerRESTStorageClass, opts.storageClass)
values.Set(peerRESTBucket, opts.bucketName)
values.Set(peerRESTEnableSha256, strconv.FormatBool(opts.enableSha256))
respBody, err := client.callWithContext(context.Background(), peerRESTMethodSpeedTest, values, nil, -1)
if err != nil {
return SpeedTestResult{}, err
}
defer xhttp.DrainBody(respBody)
waitReader, err := waitForHTTPResponse(respBody)
if err != nil {
return SpeedTestResult{}, err
}
var result SpeedTestResult
err = gob.NewDecoder(waitReader).Decode(&result)
if err != nil {
return result, err
}
if result.Error != "" {
return result, errors.New(result.Error)
}
return result, nil
}
func (client *peerRESTClient) DriveSpeedTest(ctx context.Context, opts madmin.DriveSpeedTestOpts) (madmin.DriveSpeedTestResult, error) {
queryVals := make(url.Values)
if opts.Serial {
queryVals.Set("serial", "true")
}
queryVals.Set("blocksize", strconv.FormatUint(opts.BlockSize, 10))
queryVals.Set("filesize", strconv.FormatUint(opts.FileSize, 10))
respBody, err := client.callWithContext(ctx, peerRESTMethodDriveSpeedTest, queryVals, nil, -1)
if err != nil {
return madmin.DriveSpeedTestResult{}, err
}
defer xhttp.DrainBody(respBody)
waitReader, err := waitForHTTPResponse(respBody)
if err != nil {
return madmin.DriveSpeedTestResult{}, err
}
var result madmin.DriveSpeedTestResult
err = gob.NewDecoder(waitReader).Decode(&result)
if err != nil {
return result, err
}
if result.Error != "" {
return result, errors.New(result.Error)
}
return result, nil
}
func (client *peerRESTClient) GetLastDayTierStats(ctx context.Context) (DailyAllTierStats, error) {
resp, err := getLastDayTierStatsRPC.Call(ctx, client.gridConn(), grid.NewMSS())
if err != nil || resp == nil {
return DailyAllTierStats{}, err
}
return *resp, nil
}
// DevNull - Used by netperf to pump data to peer
func (client *peerRESTClient) DevNull(ctx context.Context, r io.Reader) error {
respBody, err := client.callWithContext(ctx, peerRESTMethodDevNull, nil, r, -1)
if err != nil {
return err
}
defer xhttp.DrainBody(respBody)
return err
}
// Netperf - To initiate netperf on peer
func (client *peerRESTClient) Netperf(ctx context.Context, duration time.Duration) (madmin.NetperfNodeResult, error) {
var result madmin.NetperfNodeResult
values := make(url.Values)
values.Set(peerRESTDuration, duration.String())
respBody, err := client.callWithContext(context.Background(), peerRESTMethodNetperf, values, nil, -1)
if err != nil {
return result, err
}
defer xhttp.DrainBody(respBody)
err = gob.NewDecoder(respBody).Decode(&result)
return result, err
}
// GetReplicationMRF - get replication MRF for bucket
func (client *peerRESTClient) GetReplicationMRF(ctx context.Context, bucket string) (chan madmin.ReplicationMRF, error) {
values := make(url.Values)
values.Set(peerRESTBucket, bucket)
respBody, err := client.callWithContext(ctx, peerRESTMethodGetReplicationMRF, values, nil, -1)
if err != nil {
return nil, err
}
dec := gob.NewDecoder(respBody)
ch := make(chan madmin.ReplicationMRF)
go func(ch chan madmin.ReplicationMRF) {
defer func() {
xhttp.DrainBody(respBody)
close(ch)
}()
for {
var entry madmin.ReplicationMRF
if err := dec.Decode(&entry); err != nil {
return
}
select {
case <-ctx.Done():
return
case ch <- entry:
}
}
}(ch)
return ch, nil
}