Files
mattermost/app/cluster_discovery.go
Christopher Speller 686c2fbab7 Structured logging (#8673)
* Implementing structured logging

* Changes to en.json to allow refactor to run.

* Fixing global logger

* Structured logger initalization.

* Add caller.

* Do some log redirection.

* Auto refactor

* Cleaning up l4g reference and removing dependancy.

* Removing junk.

* Copyright headers.

* Fixing tests

* Revert "Changes to en.json to allow refactor to run."

This reverts commit fd8249e99b.

* Fixing some auto refactor strangeness and typo.

* Making keys more human readable.
2018-04-27 12:49:45 -07:00

88 lines
2.6 KiB
Go

// Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
package app
import (
"fmt"
"time"
"github.com/mattermost/mattermost-server/mlog"
"github.com/mattermost/mattermost-server/model"
)
const (
DISCOVERY_SERVICE_WRITE_PING = 60 * time.Second
)
type ClusterDiscoveryService struct {
model.ClusterDiscovery
app *App
stop chan bool
}
func (a *App) NewClusterDiscoveryService() *ClusterDiscoveryService {
ds := &ClusterDiscoveryService{
ClusterDiscovery: model.ClusterDiscovery{},
app: a,
stop: make(chan bool),
}
return ds
}
func (me *ClusterDiscoveryService) Start() {
<-me.app.Srv.Store.ClusterDiscovery().Cleanup()
if cresult := <-me.app.Srv.Store.ClusterDiscovery().Exists(&me.ClusterDiscovery); cresult.Err != nil {
mlog.Error(fmt.Sprintf("ClusterDiscoveryService failed to check if row exists for %v with err=%v", me.ClusterDiscovery.ToJson(), cresult.Err))
} else {
if cresult.Data.(bool) {
if u := <-me.app.Srv.Store.ClusterDiscovery().Delete(&me.ClusterDiscovery); u.Err != nil {
mlog.Error(fmt.Sprintf("ClusterDiscoveryService failed to start clean for %v with err=%v", me.ClusterDiscovery.ToJson(), u.Err))
}
}
}
if result := <-me.app.Srv.Store.ClusterDiscovery().Save(&me.ClusterDiscovery); result.Err != nil {
mlog.Error(fmt.Sprintf("ClusterDiscoveryService failed to save for %v with err=%v", me.ClusterDiscovery.ToJson(), result.Err))
return
}
go func() {
mlog.Debug(fmt.Sprintf("ClusterDiscoveryService ping writer started for %v", me.ClusterDiscovery.ToJson()))
ticker := time.NewTicker(DISCOVERY_SERVICE_WRITE_PING)
defer func() {
ticker.Stop()
if u := <-me.app.Srv.Store.ClusterDiscovery().Delete(&me.ClusterDiscovery); u.Err != nil {
mlog.Error(fmt.Sprintf("ClusterDiscoveryService failed to cleanup for %v with err=%v", me.ClusterDiscovery.ToJson(), u.Err))
}
mlog.Debug(fmt.Sprintf("ClusterDiscoveryService ping writer stopped for %v", me.ClusterDiscovery.ToJson()))
}()
for {
select {
case <-ticker.C:
if u := <-me.app.Srv.Store.ClusterDiscovery().SetLastPingAt(&me.ClusterDiscovery); u.Err != nil {
mlog.Error(fmt.Sprintf("ClusterDiscoveryService failed to write ping for %v with err=%v", me.ClusterDiscovery.ToJson(), u.Err))
}
case <-me.stop:
return
}
}
}()
}
func (me *ClusterDiscoveryService) Stop() {
me.stop <- true
}
func (a *App) IsLeader() bool {
if a.License() != nil && *a.Config().ClusterSettings.Enable && a.Cluster != nil {
return a.Cluster.IsLeader()
} else {
return true
}
}