certusone
/
chainlink_exporter
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Split head and request routine

This commit is contained in:
Hendrik Hofstadt 2020-01-31 11:39:01 +01:00
parent 22387343a4
commit 8a274cd418
2 changed files with 49 additions and 35 deletions
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1
cmd/chainlink_exporter/aggregator.go
View File

@ -48,7 +48,6 @@ func (a *AggregatorMonitor) Monitor() {
zap.L().Error("failed to watch aggregator fulfillment", zap.Error(err), zap.String("address", a.address.String()))
return
}
defer sub.Unsubscribe()
for {
select {

83
cmd/chainlink_exporter/monitor.go
View File

@ -146,7 +146,8 @@ func NewMonitor(addr common.Address, fulfillmentAddr common.Address, linkAddr co
}
func (m *Monitor) Start() {
go m.pollRoutine()
go m.headRoutine()
go m.requestRoutine()
go m.metricRoutine()
}
@ -167,8 +168,9 @@ func (m *Monitor) metricRoutine() {
func (m *Monitor) updateBalances() {
zap.L().Debug("fetching balances")
ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
ctx, cancel := context.WithTimeout(context.Background(), time.Second*15)
defer cancel()
balance, err := m.client.BalanceAt(ctx, m.fulfillmentAddr, nil)
if err != nil {
zap.L().Error("failed to fetch oracle balance", zap.Error(err))
@ -178,8 +180,6 @@ func (m *Monitor) updateBalances() {
balance.Div(balance, big.NewInt(params.Ether/PRECISION))
m.balanceGauge.Set(float64(balance.Uint64()) / PRECISION)
ctx, cancel = context.WithTimeout(context.Background(), time.Second*5)
defer cancel()
owner, err := m.oracle.Owner(&bind.CallOpts{
Context: ctx,
})
@ -194,8 +194,6 @@ func (m *Monitor) updateBalances() {
withdrawableLinkBalance.Div(withdrawableLinkBalance, big.NewInt(params.Ether/PRECISION))
m.linkBalanceGauge.WithLabelValues("withdrawable").Set(float64(withdrawableLinkBalance.Uint64()) / PRECISION)
ctx, cancel = context.WithTimeout(context.Background(), time.Second*5)
defer cancel()
linkBalance, err := m.linkContract.BalanceOf(&bind.CallOpts{Context: ctx}, m.addr)
if err != nil {
zap.L().Error("failed to fetch LINK balance", zap.Error(err))
@ -207,49 +205,25 @@ func (m *Monitor) updateBalances() {
zap.L().Debug("fetched balances")
}
func (m *Monitor) pollRoutine() {
func (m *Monitor) headRoutine() {
for {
zap.L().Info("Starting poll routine")
zap.L().Info("Starting head routine")
func() {
ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
defer cancel()
reqChan := make(chan *abi.OracleOracleRequest, 100)
sub, err := m.oracle.WatchOracleRequest(&bind.WatchOpts{
Context: ctx,
}, reqChan, nil)
if err != nil {
zap.L().Error("failed to watch oracle requests", zap.Error(err))
return
}
defer sub.Unsubscribe()
headChan := make(chan *types.Header, 100)
sub2, err := m.client.SubscribeNewHead(ctx, headChan)
sub, err := m.client.SubscribeNewHead(ctx, headChan)
if err != nil {
zap.L().Error("failed to subscribe to new heads", zap.Error(err))
return
}
defer sub2.Unsubscribe()
for {
select {
case err = <-sub.Err():
zap.L().Error("oracle requests subscription errored", zap.Error(err))
return
case err = <-sub2.Err():
zap.L().Error("head subscription errored", zap.Error(err))
return
case req, has := <-reqChan:
if !has {
zap.L().Error("request subscription closed", zap.Error(err))
return
}
err := m.handleRequest(req)
if err != nil {
zap.L().Warn("failed to handle request", zap.Error(err))
continue
}
case header, has := <-headChan:
if !has {
zap.L().Error("head subscription closed", zap.Error(err))
@ -268,7 +242,48 @@ func (m *Monitor) pollRoutine() {
}
}()
zap.L().Warn("poll routine died. restarting in 5sec")
zap.L().Warn("head routine died. restarting in 5sec")
time.Sleep(5 * time.Second)
}
}
func (m *Monitor) requestRoutine() {
for {
zap.L().Info("Starting request routine")
func() {
ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
defer cancel()
reqChan := make(chan *abi.OracleOracleRequest, 100)
sub, err := m.oracle.WatchOracleRequest(&bind.WatchOpts{
Context: ctx,
}, reqChan, nil)
if err != nil {
zap.L().Error("failed to watch oracle requests", zap.Error(err))
return
}
for {
select {
case err = <-sub.Err():
zap.L().Error("oracle requests subscription errored", zap.Error(err))
return
case req, has := <-reqChan:
if !has {
zap.L().Error("request subscription closed", zap.Error(err))
return
}
err := m.handleRequest(req)
if err != nil {
zap.L().Warn("failed to handle request", zap.Error(err))
continue
}
}
}
}()
zap.L().Warn("request routine died. restarting in 5sec")
time.Sleep(5 * time.Second)
}
}