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workflow_status.go
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/
workflow_status.go
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package cron
import (
"context"
"regexp"
"time"
"github.com/uber-go/tally/v4"
"go.uber.org/fx"
"go.uber.org/zap"
"golang.org/x/xerrors"
"github.com/coinbase/chainstorage/internal/cadence"
"github.com/coinbase/chainstorage/internal/config"
"github.com/coinbase/chainstorage/internal/utils/fxparams"
"github.com/coinbase/chainstorage/internal/utils/log"
)
type (
WorkflowStatusTaskParams struct {
fx.In
fxparams.Params
Config *config.Config
Runtime cadence.Runtime
}
workflowStatusTask struct {
config *config.Config
logger *zap.Logger
runtime cadence.Runtime
metrics *workflowStatusMetrics
}
workflowStatusMetrics struct {
countersSuccess map[string]tally.Counter
countersError map[string]tally.Counter
}
)
const (
workflowPrefix = "workflow."
monitor = "monitor"
poller = "poller"
streamer = "streamer"
crossValidator = "cross_validator"
backfiller = "backfiller"
maxPageSize = 20
)
var (
workflowSeverityMap = map[*regexp.Regexp]string{
regexp.MustCompile(`^poller$`): sev1,
regexp.MustCompile(`^poller/block_tag=\d+$`): sev2,
regexp.MustCompile(`^streamer$`): sev1,
regexp.MustCompile(`^streamer/event_tag=\d+$`): sev2,
regexp.MustCompile(`^cross_validator$`): sev2,
regexp.MustCompile(`^monitor$`): sev2,
regexp.MustCompile(`^backfiller$`): sev3,
}
)
func NewWorkflowStatus(params WorkflowStatusTaskParams) (Task, error) {
logger := log.WithPackage(params.Logger)
return &workflowStatusTask{
config: params.Config,
logger: logger,
runtime: params.Runtime,
metrics: newWorkflowStatusMetrics(params.Config.SLA.ExpectedWorkflows, params.Metrics),
}, nil
}
func newWorkflowStatusMetrics(workflows []string, rootScope tally.Scope) *workflowStatusMetrics {
countersSuccess := make(map[string]tally.Counter)
countersError := make(map[string]tally.Counter)
for _, wf := range workflows {
severity := getWorkflowSeverity(wf)
countersSuccess[workflowPrefix+wf] = rootScope.Tagged(map[string]string{
slaTypeTag: workflowPrefix + wf,
severityTag: severity,
resultTypeTag: resultTypeSuccess,
}).Counter(slaMetric)
countersError[workflowPrefix+wf] = rootScope.Tagged(map[string]string{
slaTypeTag: workflowPrefix + wf,
severityTag: severity,
resultTypeTag: resultTypeError,
}).Counter(slaMetric)
}
return &workflowStatusMetrics{
countersSuccess: countersSuccess,
countersError: countersError,
}
}
func getWorkflowSeverity(workflow string) string {
for pattern, severity := range workflowSeverityMap {
if pattern.MatchString(workflow) {
return severity
}
}
return sev3
}
func (t *workflowStatusTask) Name() string {
return "workflow_status"
}
func (t *workflowStatusTask) Spec() string {
return "@every 30s"
}
func (t *workflowStatusTask) Parallelism() int64 {
return 1
}
func (t *workflowStatusTask) Enabled() bool {
return !t.config.Cron.DisableWorkflowStatus
}
func (t *workflowStatusTask) DelayStartDuration() time.Duration {
return 0
}
func (t *workflowStatusTask) Run(ctx context.Context) error {
// Get the expected workflows for the current config
expectedWorkflowRunning := make(map[string]bool)
for _, wf := range t.config.SLA.ExpectedWorkflows {
expectedWorkflowRunning[workflowPrefix+wf] = false
}
t.logger.Info("running workflow status task", zap.Reflect("expected_workflows", expectedWorkflowRunning))
// Mark open workflows twice because sometimes the result misses some workflows due to `ContinueAsNew`
if err := t.markOpenWorkflows(ctx, expectedWorkflowRunning); err != nil {
return xerrors.Errorf("failed to mark open workflows: %w", err)
}
time.Sleep(1 * time.Second)
if err := t.markOpenWorkflows(ctx, expectedWorkflowRunning); err != nil {
return xerrors.Errorf("failed to mark open workflows: %w", err)
}
for workflowName, isRunning := range expectedWorkflowRunning {
if !isRunning {
t.metrics.countersError[workflowName].Inc(1)
} else {
t.metrics.countersSuccess[workflowName].Inc(1)
}
}
t.logger.Info("finished workflow status task", zap.Reflect("workflow_running", expectedWorkflowRunning))
return nil
}
func (t *workflowStatusTask) markOpenWorkflows(ctx context.Context, expectedWorkflowMap map[string]bool) error {
openWorkflows, err := t.runtime.ListOpenWorkflows(ctx, t.config.Cadence.Domain, maxPageSize)
if err != nil {
return xerrors.Errorf("failed to get open workflows: %w", err)
}
for _, wf := range openWorkflows.Executions {
openWorkflow := wf.Execution.WorkflowId
if _, ok := expectedWorkflowMap[openWorkflow]; ok {
expectedWorkflowMap[openWorkflow] = true
}
}
return nil
}