mirror of
https://github.com/minio/minio.git
synced 2024-12-24 22:25:54 -05:00
782 lines
21 KiB
Go
782 lines
21 KiB
Go
/*
|
|
* MinIO Cloud Storage, (C) 2019 MinIO, Inc.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
package cmd
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"crypto/tls"
|
|
"encoding/gob"
|
|
"io"
|
|
"math/rand"
|
|
"net/url"
|
|
"strconv"
|
|
"sync/atomic"
|
|
"time"
|
|
|
|
"github.com/minio/minio/cmd/http"
|
|
"github.com/minio/minio/cmd/logger"
|
|
"github.com/minio/minio/cmd/rest"
|
|
"github.com/minio/minio/pkg/event"
|
|
"github.com/minio/minio/pkg/lifecycle"
|
|
"github.com/minio/minio/pkg/madmin"
|
|
xnet "github.com/minio/minio/pkg/net"
|
|
"github.com/minio/minio/pkg/policy"
|
|
trace "github.com/minio/minio/pkg/trace"
|
|
)
|
|
|
|
// client to talk to peer Nodes.
|
|
type peerRESTClient struct {
|
|
host *xnet.Host
|
|
restClient *rest.Client
|
|
connected int32
|
|
}
|
|
|
|
// Reconnect to a peer rest server.
|
|
func (client *peerRESTClient) reConnect() {
|
|
atomic.StoreInt32(&client.connected, 1)
|
|
}
|
|
|
|
// 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(context.Background(), 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.IsOnline() {
|
|
client.reConnect()
|
|
}
|
|
|
|
if values == nil {
|
|
values = make(url.Values)
|
|
}
|
|
|
|
respBody, err = client.restClient.CallWithContext(ctx, method, values, body, length)
|
|
if err == nil {
|
|
return respBody, nil
|
|
}
|
|
|
|
if isNetworkError(err) {
|
|
atomic.StoreInt32(&client.connected, 0)
|
|
}
|
|
|
|
return nil, err
|
|
}
|
|
|
|
// Stringer provides a canonicalized representation of node.
|
|
func (client *peerRESTClient) String() string {
|
|
return client.host.String()
|
|
}
|
|
|
|
// IsOnline - returns whether RPC client failed to connect or not.
|
|
func (client *peerRESTClient) IsOnline() bool {
|
|
return atomic.LoadInt32(&client.connected) == 1
|
|
}
|
|
|
|
// Close - marks the client as closed.
|
|
func (client *peerRESTClient) Close() error {
|
|
atomic.StoreInt32(&client.connected, 0)
|
|
client.restClient.Close()
|
|
return nil
|
|
}
|
|
|
|
// GetLocksResp stores various info from the client for each lock that is requested.
|
|
type GetLocksResp []map[string][]lockRequesterInfo
|
|
|
|
// NetReadPerfInfo - fetch network read performance information for a remote node.
|
|
func (client *peerRESTClient) NetReadPerfInfo(size int64) (info ServerNetReadPerfInfo, err error) {
|
|
params := make(url.Values)
|
|
params.Set(peerRESTNetPerfSize, strconv.FormatInt(size, 10))
|
|
respBody, err := client.call(
|
|
peerRESTMethodNetReadPerfInfo,
|
|
params,
|
|
rand.New(rand.NewSource(time.Now().UnixNano())),
|
|
size,
|
|
)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
err = gob.NewDecoder(respBody).Decode(&info)
|
|
return info, err
|
|
}
|
|
|
|
// CollectNetPerfInfo - collect network performance information of other peers.
|
|
func (client *peerRESTClient) CollectNetPerfInfo(size int64) (info []ServerNetReadPerfInfo, err error) {
|
|
params := make(url.Values)
|
|
params.Set(peerRESTNetPerfSize, strconv.FormatInt(size, 10))
|
|
respBody, err := client.call(peerRESTMethodCollectNetPerfInfo, params, nil, -1)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
err = gob.NewDecoder(respBody).Decode(&info)
|
|
return info, err
|
|
}
|
|
|
|
// GetLocks - fetch older locks for a remote node.
|
|
func (client *peerRESTClient) GetLocks() (locks GetLocksResp, err error) {
|
|
respBody, err := client.call(peerRESTMethodGetLocks, nil, nil, -1)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
err = gob.NewDecoder(respBody).Decode(&locks)
|
|
return locks, err
|
|
}
|
|
|
|
// ServerInfo - fetch server information for a remote node.
|
|
func (client *peerRESTClient) ServerInfo() (info ServerInfoData, err error) {
|
|
respBody, err := client.call(peerRESTMethodServerInfo, nil, nil, -1)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
err = gob.NewDecoder(respBody).Decode(&info)
|
|
return info, err
|
|
}
|
|
|
|
// CPULoadInfo - fetch CPU information for a remote node.
|
|
func (client *peerRESTClient) CPULoadInfo() (info ServerCPULoadInfo, err error) {
|
|
respBody, err := client.call(peerRESTMethodCPULoadInfo, nil, nil, -1)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
err = gob.NewDecoder(respBody).Decode(&info)
|
|
return info, err
|
|
}
|
|
|
|
// CPUInfo - fetch CPU hardware information for a remote node.
|
|
func (client *peerRESTClient) CPUInfo() (info madmin.ServerCPUHardwareInfo, err error) {
|
|
respBody, err := client.call(peerRESTMethodHardwareCPUInfo, nil, nil, -1)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
err = gob.NewDecoder(respBody).Decode(&info)
|
|
return info, err
|
|
}
|
|
|
|
// NetworkInfo - fetch network hardware information for a remote node.
|
|
func (client *peerRESTClient) NetworkInfo() (info madmin.ServerNetworkHardwareInfo, err error) {
|
|
respBody, err := client.call(peerRESTMethodHardwareNetworkInfo, nil, nil, -1)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
err = gob.NewDecoder(respBody).Decode(&info)
|
|
return info, err
|
|
}
|
|
|
|
// DrivePerfInfo - fetch Drive performance information for a remote node.
|
|
func (client *peerRESTClient) DrivePerfInfo(size int64) (info madmin.ServerDrivesPerfInfo, err error) {
|
|
params := make(url.Values)
|
|
params.Set(peerRESTDrivePerfSize, strconv.FormatInt(size, 10))
|
|
respBody, err := client.call(peerRESTMethodDrivePerfInfo, params, nil, -1)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
err = gob.NewDecoder(respBody).Decode(&info)
|
|
return info, err
|
|
}
|
|
|
|
// MemUsageInfo - fetch memory usage information for a remote node.
|
|
func (client *peerRESTClient) MemUsageInfo() (info ServerMemUsageInfo, err error) {
|
|
respBody, err := client.call(peerRESTMethodMemUsageInfo, nil, nil, -1)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
err = gob.NewDecoder(respBody).Decode(&info)
|
|
return info, 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 http.DrainBody(respBody)
|
|
return nil
|
|
}
|
|
|
|
// DownloadProfileData - download profiled data from a remote node.
|
|
func (client *peerRESTClient) DownloadProfileData() (data []byte, err error) {
|
|
respBody, err := client.call(peerRESTMethodDownloadProfilingData, nil, nil, -1)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
err = gob.NewDecoder(respBody).Decode(&data)
|
|
return data, err
|
|
}
|
|
|
|
// DeleteBucket - Delete notification and policies related to the bucket.
|
|
func (client *peerRESTClient) DeleteBucket(bucket string) error {
|
|
values := make(url.Values)
|
|
values.Set(peerRESTBucket, bucket)
|
|
respBody, err := client.call(peerRESTMethodDeleteBucket, values, nil, -1)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
return nil
|
|
}
|
|
|
|
// ReloadFormat - reload format on the peer node.
|
|
func (client *peerRESTClient) ReloadFormat(dryRun bool) error {
|
|
values := make(url.Values)
|
|
if dryRun {
|
|
values.Set(peerRESTDryRun, "true")
|
|
} else {
|
|
values.Set(peerRESTDryRun, "false")
|
|
}
|
|
|
|
respBody, err := client.call(peerRESTMethodReloadFormat, values, nil, -1)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
return nil
|
|
}
|
|
|
|
// ListenBucketNotification - send listen bucket notification to peer nodes.
|
|
func (client *peerRESTClient) ListenBucketNotification(bucket string, eventNames []event.Name,
|
|
pattern string, targetID event.TargetID, addr xnet.Host) error {
|
|
args := listenBucketNotificationReq{
|
|
EventNames: eventNames,
|
|
Pattern: pattern,
|
|
TargetID: targetID,
|
|
Addr: addr,
|
|
}
|
|
|
|
values := make(url.Values)
|
|
values.Set(peerRESTBucket, bucket)
|
|
|
|
var reader bytes.Buffer
|
|
err := gob.NewEncoder(&reader).Encode(args)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
respBody, err := client.call(peerRESTMethodBucketNotificationListen, values, &reader, -1)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
defer http.DrainBody(respBody)
|
|
return nil
|
|
}
|
|
|
|
// SendEvent - calls send event RPC.
|
|
func (client *peerRESTClient) SendEvent(bucket string, targetID, remoteTargetID event.TargetID, eventData event.Event) error {
|
|
args := sendEventRequest{
|
|
TargetID: remoteTargetID,
|
|
Event: eventData,
|
|
}
|
|
|
|
values := make(url.Values)
|
|
values.Set(peerRESTBucket, bucket)
|
|
|
|
var reader bytes.Buffer
|
|
err := gob.NewEncoder(&reader).Encode(args)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
respBody, err := client.call(peerRESTMethodSendEvent, values, &reader, -1)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
var eventResp sendEventResp
|
|
defer http.DrainBody(respBody)
|
|
err = gob.NewDecoder(respBody).Decode(&eventResp)
|
|
|
|
if err != nil || !eventResp.Success {
|
|
reqInfo := &logger.ReqInfo{BucketName: bucket}
|
|
reqInfo.AppendTags("targetID", targetID.Name)
|
|
reqInfo.AppendTags("event", eventData.EventName.String())
|
|
ctx := logger.SetReqInfo(context.Background(), reqInfo)
|
|
logger.LogIf(ctx, err)
|
|
globalNotificationSys.RemoveRemoteTarget(bucket, targetID)
|
|
}
|
|
|
|
return err
|
|
}
|
|
|
|
// RemoteTargetExist - calls remote target ID exist REST API.
|
|
func (client *peerRESTClient) RemoteTargetExist(bucket string, targetID event.TargetID) (bool, error) {
|
|
values := make(url.Values)
|
|
values.Set(peerRESTBucket, bucket)
|
|
|
|
var reader bytes.Buffer
|
|
err := gob.NewEncoder(&reader).Encode(targetID)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
|
|
respBody, err := client.call(peerRESTMethodTargetExists, values, &reader, -1)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
var targetExists remoteTargetExistsResp
|
|
err = gob.NewDecoder(respBody).Decode(&targetExists)
|
|
return targetExists.Exists, err
|
|
}
|
|
|
|
// RemoveBucketPolicy - Remove bucket policy on the peer node.
|
|
func (client *peerRESTClient) RemoveBucketPolicy(bucket string) error {
|
|
values := make(url.Values)
|
|
values.Set(peerRESTBucket, bucket)
|
|
respBody, err := client.call(peerRESTMethodBucketPolicyRemove, values, nil, -1)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
return nil
|
|
}
|
|
|
|
// RemoveBucketObjectLockConfig - Remove bucket object lock config on the peer node.
|
|
func (client *peerRESTClient) RemoveBucketObjectLockConfig(bucket string) error {
|
|
values := make(url.Values)
|
|
values.Set(peerRESTBucket, bucket)
|
|
respBody, err := client.call(peerRESTMethodBucketObjectLockConfigRemove, values, nil, -1)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
return nil
|
|
}
|
|
|
|
// SetBucketPolicy - Set bucket policy on the peer node.
|
|
func (client *peerRESTClient) SetBucketPolicy(bucket string, bucketPolicy *policy.Policy) error {
|
|
values := make(url.Values)
|
|
values.Set(peerRESTBucket, bucket)
|
|
|
|
var reader bytes.Buffer
|
|
err := gob.NewEncoder(&reader).Encode(bucketPolicy)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
respBody, err := client.call(peerRESTMethodBucketPolicySet, values, &reader, -1)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
return nil
|
|
}
|
|
|
|
// RemoveBucketLifecycle - Remove bucket lifecycle configuration on the peer node
|
|
func (client *peerRESTClient) RemoveBucketLifecycle(bucket string) error {
|
|
values := make(url.Values)
|
|
values.Set(peerRESTBucket, bucket)
|
|
respBody, err := client.call(peerRESTMethodBucketLifecycleRemove, values, nil, -1)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
return nil
|
|
}
|
|
|
|
// SetBucketLifecycle - Set bucket lifecycle configuration on the peer node
|
|
func (client *peerRESTClient) SetBucketLifecycle(bucket string, bucketLifecycle *lifecycle.Lifecycle) error {
|
|
values := make(url.Values)
|
|
values.Set(peerRESTBucket, bucket)
|
|
|
|
var reader bytes.Buffer
|
|
err := gob.NewEncoder(&reader).Encode(bucketLifecycle)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
respBody, err := client.call(peerRESTMethodBucketLifecycleSet, values, &reader, -1)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
return nil
|
|
}
|
|
|
|
// PutBucketNotification - Put bucket notification on the peer node.
|
|
func (client *peerRESTClient) PutBucketNotification(bucket string, rulesMap event.RulesMap) error {
|
|
values := make(url.Values)
|
|
values.Set(peerRESTBucket, bucket)
|
|
|
|
var reader bytes.Buffer
|
|
err := gob.NewEncoder(&reader).Encode(&rulesMap)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
respBody, err := client.call(peerRESTMethodBucketNotificationPut, values, &reader, -1)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
return nil
|
|
}
|
|
|
|
// PutBucketObjectLockConfig - PUT bucket object lock configuration.
|
|
func (client *peerRESTClient) PutBucketObjectLockConfig(bucket string, retention Retention) error {
|
|
values := make(url.Values)
|
|
values.Set(peerRESTBucket, bucket)
|
|
|
|
var reader bytes.Buffer
|
|
err := gob.NewEncoder(&reader).Encode(&retention)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
respBody, err := client.call(peerRESTMethodPutBucketObjectLockConfig, values, &reader, -1)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
return nil
|
|
}
|
|
|
|
// DeletePolicy - delete a specific canned policy.
|
|
func (client *peerRESTClient) DeletePolicy(policyName string) (err error) {
|
|
values := make(url.Values)
|
|
values.Set(peerRESTPolicy, policyName)
|
|
|
|
respBody, err := client.call(peerRESTMethodDeletePolicy, values, nil, -1)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
return nil
|
|
}
|
|
|
|
// LoadPolicy - reload a specific canned policy.
|
|
func (client *peerRESTClient) LoadPolicy(policyName string) (err error) {
|
|
values := make(url.Values)
|
|
values.Set(peerRESTPolicy, policyName)
|
|
|
|
respBody, err := client.call(peerRESTMethodLoadPolicy, values, nil, -1)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
return nil
|
|
}
|
|
|
|
// LoadPolicyMapping - reload a specific policy mapping
|
|
func (client *peerRESTClient) LoadPolicyMapping(userOrGroup string, isGroup bool) error {
|
|
values := make(url.Values)
|
|
values.Set(peerRESTUserOrGroup, userOrGroup)
|
|
if isGroup {
|
|
values.Set(peerRESTIsGroup, "")
|
|
}
|
|
|
|
respBody, err := client.call(peerRESTMethodLoadPolicyMapping, values, nil, -1)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
return nil
|
|
}
|
|
|
|
// DeleteUser - delete a specific user.
|
|
func (client *peerRESTClient) DeleteUser(accessKey string) (err error) {
|
|
values := make(url.Values)
|
|
values.Set(peerRESTUser, accessKey)
|
|
|
|
respBody, err := client.call(peerRESTMethodDeleteUser, values, nil, -1)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
return nil
|
|
}
|
|
|
|
// LoadUser - reload a specific user.
|
|
func (client *peerRESTClient) LoadUser(accessKey string, temp bool) (err error) {
|
|
values := make(url.Values)
|
|
values.Set(peerRESTUser, accessKey)
|
|
values.Set(peerRESTUserTemp, strconv.FormatBool(temp))
|
|
|
|
respBody, err := client.call(peerRESTMethodLoadUser, values, nil, -1)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
return nil
|
|
}
|
|
|
|
// LoadUsers - send load users command to peer nodes.
|
|
func (client *peerRESTClient) LoadUsers() (err error) {
|
|
respBody, err := client.call(peerRESTMethodLoadUsers, nil, nil, -1)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
return nil
|
|
}
|
|
|
|
// LoadGroup - send load group command to peers.
|
|
func (client *peerRESTClient) LoadGroup(group string) error {
|
|
values := make(url.Values)
|
|
values.Set(peerRESTGroup, group)
|
|
respBody, err := client.call(peerRESTMethodLoadGroup, values, nil, -1)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
return nil
|
|
}
|
|
|
|
// ServerUpdate - sends server update message to remote peers.
|
|
func (client *peerRESTClient) ServerUpdate(updateURL, sha256Hex string, latestReleaseTime time.Time) error {
|
|
values := make(url.Values)
|
|
values.Set(peerRESTUpdateURL, updateURL)
|
|
values.Set(peerRESTSha256Hex, sha256Hex)
|
|
if !latestReleaseTime.IsZero() {
|
|
values.Set(peerRESTLatestRelease, latestReleaseTime.Format(time.RFC3339))
|
|
} else {
|
|
values.Set(peerRESTLatestRelease, "")
|
|
}
|
|
respBody, err := client.call(peerRESTMethodServerUpdate, values, nil, -1)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
return nil
|
|
}
|
|
|
|
// SignalService - sends signal to peer nodes.
|
|
func (client *peerRESTClient) SignalService(sig serviceSignal) error {
|
|
values := make(url.Values)
|
|
values.Set(peerRESTSignal, strconv.Itoa(int(sig)))
|
|
respBody, err := client.call(peerRESTMethodSignalService, values, nil, -1)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
return nil
|
|
}
|
|
|
|
func (client *peerRESTClient) BackgroundHealStatus() (madmin.BgHealState, error) {
|
|
respBody, err := client.call(peerRESTMethodBackgroundHealStatus, nil, nil, -1)
|
|
if err != nil {
|
|
return madmin.BgHealState{}, err
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
|
|
state := madmin.BgHealState{}
|
|
err = gob.NewDecoder(respBody).Decode(&state)
|
|
return state, err
|
|
}
|
|
|
|
// BgLifecycleOpsStatus describes the status
|
|
// of the background lifecycle operations
|
|
type BgLifecycleOpsStatus struct {
|
|
LastActivity time.Time
|
|
}
|
|
|
|
// BgOpsStatus describes the status of all operations performed
|
|
// in background such as auto-healing and lifecycle.
|
|
// Notice: We need to increase peer REST API version when adding
|
|
// new fields to this struct.
|
|
type BgOpsStatus struct {
|
|
LifecycleOps BgLifecycleOpsStatus
|
|
}
|
|
|
|
func (client *peerRESTClient) BackgroundOpsStatus() (BgOpsStatus, error) {
|
|
respBody, err := client.call(peerRESTMethodBackgroundOpsStatus, nil, nil, -1)
|
|
if err != nil {
|
|
return BgOpsStatus{}, err
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
|
|
state := BgOpsStatus{}
|
|
err = gob.NewDecoder(respBody).Decode(&state)
|
|
return state, err
|
|
}
|
|
|
|
func (client *peerRESTClient) doTrace(traceCh chan interface{}, doneCh chan struct{}, trcAll, trcErr bool) {
|
|
values := make(url.Values)
|
|
values.Set(peerRESTTraceAll, strconv.FormatBool(trcAll))
|
|
values.Set(peerRESTTraceErr, strconv.FormatBool(trcErr))
|
|
|
|
// To cancel the REST request in case doneCh gets closed.
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
|
|
cancelCh := make(chan struct{})
|
|
defer close(cancelCh)
|
|
go func() {
|
|
select {
|
|
case <-doneCh:
|
|
case <-cancelCh:
|
|
// There was an error in the REST request.
|
|
}
|
|
cancel()
|
|
}()
|
|
|
|
respBody, err := client.callWithContext(ctx, peerRESTMethodTrace, values, nil, -1)
|
|
defer http.DrainBody(respBody)
|
|
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
dec := gob.NewDecoder(respBody)
|
|
for {
|
|
var info trace.Info
|
|
if err = dec.Decode(&info); err != nil {
|
|
return
|
|
}
|
|
if len(info.NodeName) > 0 {
|
|
select {
|
|
case traceCh <- info:
|
|
default:
|
|
// Do not block on slow receivers.
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Trace - send http trace request to peer nodes
|
|
func (client *peerRESTClient) Trace(traceCh chan interface{}, doneCh chan struct{}, trcAll, trcErr bool) {
|
|
go func() {
|
|
for {
|
|
client.doTrace(traceCh, doneCh, trcAll, trcErr)
|
|
select {
|
|
case <-doneCh:
|
|
return
|
|
default:
|
|
// There was error in the REST request, retry after sometime as probably the peer is down.
|
|
time.Sleep(5 * time.Second)
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
|
|
// ConsoleLog - sends request to peer nodes to get console logs
|
|
func (client *peerRESTClient) ConsoleLog(logCh chan interface{}, doneCh chan struct{}) {
|
|
go func() {
|
|
for {
|
|
// get cancellation context to properly unsubscribe peers
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
respBody, err := client.callWithContext(ctx, peerRESTMethodLog, nil, nil, -1)
|
|
if err != nil {
|
|
// Retry the failed request.
|
|
time.Sleep(5 * time.Second)
|
|
} else {
|
|
dec := gob.NewDecoder(respBody)
|
|
|
|
go func() {
|
|
<-doneCh
|
|
cancel()
|
|
}()
|
|
|
|
for {
|
|
var log madmin.LogInfo
|
|
if err = dec.Decode(&log); err != nil {
|
|
break
|
|
}
|
|
select {
|
|
case logCh <- log:
|
|
default:
|
|
}
|
|
}
|
|
}
|
|
|
|
select {
|
|
case <-doneCh:
|
|
cancel()
|
|
http.DrainBody(respBody)
|
|
return
|
|
default:
|
|
// There was error in the REST request, retry.
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
|
|
func getRemoteHosts(endpointZones EndpointZones) []*xnet.Host {
|
|
var remoteHosts []*xnet.Host
|
|
for _, hostStr := range GetRemotePeers(endpointZones) {
|
|
host, err := xnet.ParseHost(hostStr)
|
|
if err != nil {
|
|
logger.LogIf(context.Background(), err)
|
|
continue
|
|
}
|
|
remoteHosts = append(remoteHosts, host)
|
|
}
|
|
|
|
return remoteHosts
|
|
}
|
|
|
|
func getRestClients(endpoints EndpointZones) []*peerRESTClient {
|
|
peerHosts := getRemoteHosts(endpoints)
|
|
restClients := make([]*peerRESTClient, len(peerHosts))
|
|
for i, host := range peerHosts {
|
|
client, err := newPeerRESTClient(host)
|
|
if err != nil {
|
|
logger.LogIf(context.Background(), err)
|
|
continue
|
|
}
|
|
restClients[i] = client
|
|
}
|
|
|
|
return restClients
|
|
}
|
|
|
|
// Returns a peer rest client.
|
|
func newPeerRESTClient(peer *xnet.Host) (*peerRESTClient, error) {
|
|
|
|
scheme := "http"
|
|
if globalIsSSL {
|
|
scheme = "https"
|
|
}
|
|
|
|
serverURL := &url.URL{
|
|
Scheme: scheme,
|
|
Host: peer.String(),
|
|
Path: peerRESTPath,
|
|
}
|
|
|
|
var tlsConfig *tls.Config
|
|
if globalIsSSL {
|
|
tlsConfig = &tls.Config{
|
|
ServerName: peer.Name,
|
|
RootCAs: globalRootCAs,
|
|
}
|
|
}
|
|
|
|
trFn := newCustomHTTPTransport(tlsConfig, rest.DefaultRESTTimeout, rest.DefaultRESTTimeout)
|
|
restClient, err := rest.NewClient(serverURL, trFn, newAuthToken)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return &peerRESTClient{host: peer, restClient: restClient, connected: 1}, nil
|
|
}
|