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minio/pkg/madmin/service-commands.go

124 lines
3.2 KiB

/*
* MinIO Cloud Storage, (C) 2016-2019 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 madmin
import (
"context"
"encoding/json"
"net/http"
"net/url"
"strconv"
trace "github.com/minio/minio/pkg/trace"
)
// ServiceRestart - restarts the MinIO cluster
func (adm *AdminClient) ServiceRestart(ctx context.Context) error {
return adm.serviceCallAction(ctx, ServiceActionRestart)
}
// ServiceStop - stops the MinIO cluster
func (adm *AdminClient) ServiceStop(ctx context.Context) error {
return adm.serviceCallAction(ctx, ServiceActionStop)
}
// ServiceAction - type to restrict service-action values
type ServiceAction string
Move admin APIs to new path and add redesigned heal APIs (#5351) - Changes related to moving admin APIs - admin APIs now have an endpoint under /minio/admin - admin APIs are now versioned - a new API to server the version is added at "GET /minio/admin/version" and all API operations have the path prefix /minio/admin/v1/<operation> - new service stop API added - credentials change API is moved to /minio/admin/v1/config/credential - credentials change API and configuration get/set API now require TLS so that credentials are protected - all API requests now receive JSON - heal APIs are disabled as they will be changed substantially - Heal API changes Heal API is now provided at a single endpoint with the ability for a client to start a heal sequence on all the data in the server, a single bucket, or under a prefix within a bucket. When a heal sequence is started, the server returns a unique token that needs to be used for subsequent 'status' requests to fetch heal results. On each status request from the client, the server returns heal result records that it has accumulated since the previous status request. The server accumulates upto 1000 records and pauses healing further objects until the client requests for status. If the client does not request any further records for a long time, the server aborts the heal sequence automatically. A heal result record is returned for each entity healed on the server, such as system metadata, object metadata, buckets and objects, and has information about the before and after states on each disk. A client may request to force restart a heal sequence - this causes the running heal sequence to be aborted at the next safe spot and starts a new heal sequence.
7 years ago
const (
// ServiceActionRestart represents restart action
ServiceActionRestart ServiceAction = "restart"
// ServiceActionStop represents stop action
ServiceActionStop = "stop"
Move admin APIs to new path and add redesigned heal APIs (#5351) - Changes related to moving admin APIs - admin APIs now have an endpoint under /minio/admin - admin APIs are now versioned - a new API to server the version is added at "GET /minio/admin/version" and all API operations have the path prefix /minio/admin/v1/<operation> - new service stop API added - credentials change API is moved to /minio/admin/v1/config/credential - credentials change API and configuration get/set API now require TLS so that credentials are protected - all API requests now receive JSON - heal APIs are disabled as they will be changed substantially - Heal API changes Heal API is now provided at a single endpoint with the ability for a client to start a heal sequence on all the data in the server, a single bucket, or under a prefix within a bucket. When a heal sequence is started, the server returns a unique token that needs to be used for subsequent 'status' requests to fetch heal results. On each status request from the client, the server returns heal result records that it has accumulated since the previous status request. The server accumulates upto 1000 records and pauses healing further objects until the client requests for status. If the client does not request any further records for a long time, the server aborts the heal sequence automatically. A heal result record is returned for each entity healed on the server, such as system metadata, object metadata, buckets and objects, and has information about the before and after states on each disk. A client may request to force restart a heal sequence - this causes the running heal sequence to be aborted at the next safe spot and starts a new heal sequence.
7 years ago
)
// serviceCallAction - call service restart/update/stop API.
func (adm *AdminClient) serviceCallAction(ctx context.Context, action ServiceAction) error {
queryValues := url.Values{}
queryValues.Set("action", string(action))
Move admin APIs to new path and add redesigned heal APIs (#5351) - Changes related to moving admin APIs - admin APIs now have an endpoint under /minio/admin - admin APIs are now versioned - a new API to server the version is added at "GET /minio/admin/version" and all API operations have the path prefix /minio/admin/v1/<operation> - new service stop API added - credentials change API is moved to /minio/admin/v1/config/credential - credentials change API and configuration get/set API now require TLS so that credentials are protected - all API requests now receive JSON - heal APIs are disabled as they will be changed substantially - Heal API changes Heal API is now provided at a single endpoint with the ability for a client to start a heal sequence on all the data in the server, a single bucket, or under a prefix within a bucket. When a heal sequence is started, the server returns a unique token that needs to be used for subsequent 'status' requests to fetch heal results. On each status request from the client, the server returns heal result records that it has accumulated since the previous status request. The server accumulates upto 1000 records and pauses healing further objects until the client requests for status. If the client does not request any further records for a long time, the server aborts the heal sequence automatically. A heal result record is returned for each entity healed on the server, such as system metadata, object metadata, buckets and objects, and has information about the before and after states on each disk. A client may request to force restart a heal sequence - this causes the running heal sequence to be aborted at the next safe spot and starts a new heal sequence.
7 years ago
// Request API to Restart server
resp, err := adm.executeMethod(ctx,
http.MethodPost, requestData{
relPath: adminAPIPrefix + "/service",
queryValues: queryValues,
},
)
defer closeResponse(resp)
if err != nil {
return err
}
if resp.StatusCode != http.StatusOK {
return httpRespToErrorResponse(resp)
}
return nil
}
// ServiceTraceInfo holds http trace
type ServiceTraceInfo struct {
Trace trace.Info
Err error `json:"-"`
}
// ServiceTrace - listen on http trace notifications.
func (adm AdminClient) ServiceTrace(ctx context.Context, allTrace, errTrace bool) <-chan ServiceTraceInfo {
traceInfoCh := make(chan ServiceTraceInfo)
// Only success, start a routine to start reading line by line.
go func(traceInfoCh chan<- ServiceTraceInfo) {
defer close(traceInfoCh)
for {
urlValues := make(url.Values)
urlValues.Set("all", strconv.FormatBool(allTrace))
urlValues.Set("err", strconv.FormatBool(errTrace))
reqData := requestData{
relPath: adminAPIPrefix + "/trace",
queryValues: urlValues,
}
// Execute GET to call trace handler
resp, err := adm.executeMethod(ctx, http.MethodGet, reqData)
if err != nil {
closeResponse(resp)
return
}
if resp.StatusCode != http.StatusOK {
traceInfoCh <- ServiceTraceInfo{Err: httpRespToErrorResponse(resp)}
return
}
dec := json.NewDecoder(resp.Body)
for {
var info trace.Info
if err = dec.Decode(&info); err != nil {
break
}
select {
case <-ctx.Done():
return
case traceInfoCh <- ServiceTraceInfo{Trace: info}:
}
}
}
}(traceInfoCh)
// Returns the trace info channel, for caller to start reading from.
return traceInfoCh
}