556a51120c
No locks are ever left in memory, we also have a periodic interval of clearing stale locks anyways. The lock instrumentation was not complete and was seldom used. Deprecate this for now and bring it back later if it is really needed. This also in-turn seems to improve performance slightly.
113 lines
3.3 KiB
Go
113 lines
3.3 KiB
Go
/*
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* Minio Cloud Storage, (C) 2018 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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"context"
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"encoding/json"
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"github.com/minio/minio/cmd/logger"
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)
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// localAdminClient - represents admin operation to be executed locally.
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type localAdminClient struct{}
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// SignalService - sends a restart or stop signal to the local server
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func (lc localAdminClient) SignalService(s serviceSignal) error {
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switch s {
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case serviceRestart, serviceStop:
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globalServiceSignalCh <- s
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default:
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return errUnsupportedSignal
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}
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return nil
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}
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// ReInitFormat - re-initialize disk format.
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func (lc localAdminClient) ReInitFormat(dryRun bool) error {
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objectAPI := newObjectLayerFn()
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if objectAPI == nil {
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return errServerNotInitialized
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}
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return objectAPI.ReloadFormat(context.Background(), dryRun)
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}
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// ServerInfo - Returns the server info of this server.
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func (lc localAdminClient) ServerInfo() (sid ServerInfoData, e error) {
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if globalBootTime.IsZero() {
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return sid, errServerNotInitialized
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}
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// Build storage info
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objLayer := newObjectLayerFn()
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if objLayer == nil {
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return sid, errServerNotInitialized
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}
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storage := objLayer.StorageInfo(context.Background())
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return ServerInfoData{
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StorageInfo: storage,
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ConnStats: globalConnStats.toServerConnStats(),
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HTTPStats: globalHTTPStats.toServerHTTPStats(),
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Properties: ServerProperties{
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Uptime: UTCNow().Sub(globalBootTime),
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Version: Version,
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CommitID: CommitID,
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SQSARN: globalNotificationSys.GetARNList(),
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Region: globalServerConfig.GetRegion(),
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},
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}, nil
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}
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// GetConfig - returns config.json of the local server.
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func (lc localAdminClient) GetConfig() ([]byte, error) {
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if globalServerConfig == nil {
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return nil, fmt.Errorf("config not present")
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}
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return json.Marshal(globalServerConfig)
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}
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// WriteTmpConfig - writes config file content to a temporary file on
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// the local server.
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func (lc localAdminClient) WriteTmpConfig(tmpFileName string, configBytes []byte) error {
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tmpConfigFile := filepath.Join(getConfigDir(), tmpFileName)
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err := ioutil.WriteFile(tmpConfigFile, configBytes, 0666)
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reqInfo := (&logger.ReqInfo{}).AppendTags("tmpConfigFile", tmpConfigFile)
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ctx := logger.SetReqInfo(context.Background(), reqInfo)
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logger.LogIf(ctx, err)
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return err
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}
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// CommitConfig - Move the new config in tmpFileName onto config.json
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// on a local node.
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func (lc localAdminClient) CommitConfig(tmpFileName string) error {
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configFile := getConfigFile()
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tmpConfigFile := filepath.Join(getConfigDir(), tmpFileName)
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err := os.Rename(tmpConfigFile, configFile)
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reqInfo := (&logger.ReqInfo{}).AppendTags("tmpConfigFile", tmpConfigFile)
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reqInfo.AppendTags("configFile", configFile)
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ctx := logger.SetReqInfo(context.Background(), reqInfo)
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logger.LogIf(ctx, err)
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return err
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}
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