// NewExecutor creates an Executor and registers a callback on the
// system config.
func NewExecutor(db client.DB, gossip *gossip.Gossip, leaseMgr *LeaseManager, metaRegistry *metric.Registry, stopper *stop.Stopper) *Executor {
exec := &Executor{
db: db,
reCache: parser.NewRegexpCache(512),
leaseMgr: leaseMgr,
latency: metaRegistry.Latency("sql.latency"),
}
exec.systemConfigCond = sync.NewCond(&exec.systemConfigMu)
gossipUpdateC := gossip.RegisterSystemConfigChannel()
stopper.RunWorker(func() {
for {
select {
case <-gossipUpdateC:
cfg := gossip.GetSystemConfig()
exec.updateSystemConfig(cfg)
case <-stopper.ShouldStop():
return
}
}
})
return exec
}
// NewExecutor creates an Executor and registers a callback on the
// system config.
func NewExecutor(ctx ExecutorContext, stopper *stop.Stopper, registry *metric.Registry) *Executor {
exec := &Executor{
ctx: ctx,
reCache: parser.NewRegexpCache(512),
registry: registry,
latency: registry.Latency("latency"),
txnBeginCount: registry.Counter("txn.begin.count"),
txnCommitCount: registry.Counter("txn.commit.count"),
txnAbortCount: registry.Counter("txn.abort.count"),
txnRollbackCount: registry.Counter("txn.rollback.count"),
selectCount: registry.Counter("select.count"),
updateCount: registry.Counter("update.count"),
insertCount: registry.Counter("insert.count"),
deleteCount: registry.Counter("delete.count"),
ddlCount: registry.Counter("ddl.count"),
miscCount: registry.Counter("misc.count"),
}
exec.systemConfigCond = sync.NewCond(exec.systemConfigMu.RLocker())
gossipUpdateC := ctx.Gossip.RegisterSystemConfigChannel()
stopper.RunWorker(func() {
for {
select {
case <-gossipUpdateC:
cfg, _ := ctx.Gossip.GetSystemConfig()
exec.updateSystemConfig(cfg)
case <-stopper.ShouldStop():
return
}
}
})
return exec
}
func makeNodeMetrics(reg *metric.Registry) nodeMetrics {
return nodeMetrics{
registry: reg,
latency: reg.Latency(execLatencyName),
success: reg.Rates(execSuccessName),
err: reg.Rates(execErrorName),
}
}
// NewTxnMetrics returns a new instance of txnMetrics that contains metrics which have
// been registered with the provided Registry.
func NewTxnMetrics(txnRegistry *metric.Registry) *TxnMetrics {
return &TxnMetrics{
Aborts: txnRegistry.Rates(abortsPrefix),
Commits: txnRegistry.Rates(commitsPrefix),
Abandons: txnRegistry.Rates(abandonsPrefix),
Durations: txnRegistry.Latency(durationsPrefix),
Restarts: txnRegistry.Histogram(restartsKey, 60*time.Second, 100, 3),
}
}
// NewExecutor creates an Executor and registers a callback on the
// system config.
func NewExecutor(ctx ExecutorContext, stopper *stop.Stopper, registry *metric.Registry) *Executor {
exec := &Executor{
ctx: ctx,
reCache: parser.NewRegexpCache(512),
registry: registry,
latency: registry.Latency(MetricLatencyName),
txnBeginCount: registry.Counter(MetricTxnBeginName),
txnCommitCount: registry.Counter(MetricTxnCommitName),
txnAbortCount: registry.Counter(MetricTxnAbortName),
txnRollbackCount: registry.Counter(MetricTxnRollbackName),
selectCount: registry.Counter(MetricSelectName),
updateCount: registry.Counter(MetricUpdateName),
insertCount: registry.Counter(MetricInsertName),
deleteCount: registry.Counter(MetricDeleteName),
ddlCount: registry.Counter(MetricDdlName),
miscCount: registry.Counter(MetricMiscName),
queryCount: registry.Counter(MetricQueryName),
}
exec.systemConfigCond = sync.NewCond(exec.systemConfigMu.RLocker())
gossipUpdateC := ctx.Gossip.RegisterSystemConfigChannel()
stopper.RunWorker(func() {
for {
select {
case <-gossipUpdateC:
cfg, _ := ctx.Gossip.GetSystemConfig()
exec.updateSystemConfig(cfg)
case <-stopper.ShouldStop():
return
}
}
})
return exec
}