mirror of https://github.com/ethereum/go-ethereum
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
86 lines
2.6 KiB
86 lines
2.6 KiB
3 years ago
|
// Copyright 2021 The go-ethereum Authors
|
||
|
|
// This file is part of the go-ethereum library.
|
||
|
|
//
|
||
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
||
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
||
|
|
// the Free Software Foundation, either version 3 of the License, or
|
||
|
|
// (at your option) any later version.
|
||
|
|
//
|
||
|
|
// The go-ethereum library 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 Lesser General Public License for more details.
|
||
|
|
//
|
||
|
|
// You should have received a copy of the GNU Lesser General Public License
|
||
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
|
||
|
|
package shutdowncheck
|
||
|
|
|
||
|
|
import (
|
||
|
|
"time"
|
||
|
|
|
||
|
|
"github.com/ethereum/go-ethereum/common"
|
||
|
|
"github.com/ethereum/go-ethereum/core/rawdb"
|
||
|
|
"github.com/ethereum/go-ethereum/ethdb"
|
||
|
|
"github.com/ethereum/go-ethereum/log"
|
||
|
|
)
|
||
|
|
|
||
|
|
// ShutdownTracker is a service that reports previous unclean shutdowns
|
||
|
|
// upon start. It needs to be started after a successful start-up and stopped
|
||
|
|
// after a successful shutdown, just before the db is closed.
|
||
|
|
type ShutdownTracker struct {
|
||
|
|
db ethdb.Database
|
||
|
|
stopCh chan struct{}
|
||
|
|
}
|
||
|
|
|
||
|
|
// NewShutdownTracker creates a new ShutdownTracker instance and has
|
||
|
|
// no other side-effect.
|
||
|
|
func NewShutdownTracker(db ethdb.Database) *ShutdownTracker {
|
||
|
|
return &ShutdownTracker{
|
||
|
|
db: db,
|
||
|
|
stopCh: make(chan struct{}),
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// MarkStartup is to be called in the beginning when the node starts. It will:
|
||
|
|
// - Push a new startup marker to the db
|
||
|
|
// - Report previous unclean shutdowns
|
||
|
|
func (t *ShutdownTracker) MarkStartup() {
|
||
|
|
if uncleanShutdowns, discards, err := rawdb.PushUncleanShutdownMarker(t.db); err != nil {
|
||
|
|
log.Error("Could not update unclean-shutdown-marker list", "error", err)
|
||
|
|
} else {
|
||
|
|
if discards > 0 {
|
||
|
|
log.Warn("Old unclean shutdowns found", "count", discards)
|
||
|
|
}
|
||
|
|
for _, tstamp := range uncleanShutdowns {
|
||
|
|
t := time.Unix(int64(tstamp), 0)
|
||
|
|
log.Warn("Unclean shutdown detected", "booted", t,
|
||
|
|
"age", common.PrettyAge(t))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Start runs an event loop that updates the current marker's timestamp every 5 minutes.
|
||
|
|
func (t *ShutdownTracker) Start() {
|
||
|
|
go func() {
|
||
|
|
ticker := time.NewTicker(5 * time.Minute)
|
||
|
|
defer ticker.Stop()
|
||
|
|
for {
|
||
|
|
select {
|
||
|
|
case <-ticker.C:
|
||
|
|
rawdb.UpdateUncleanShutdownMarker(t.db)
|
||
|
|
case <-t.stopCh:
|
||
|
|
return
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}()
|
||
|
|
}
|
||
|
|
|
||
|
|
// Stop will stop the update loop and clear the current marker.
|
||
|
|
func (t *ShutdownTracker) Stop() {
|
||
|
|
// Stop update loop.
|
||
|
|
t.stopCh <- struct{}{}
|
||
|
|
// Clear last marker.
|
||
|
|
rawdb.PopUncleanShutdownMarker(t.db)
|
||
|
|
}
|