[Wf-Diagnostics] Timeout invariant to identify and collect all timeouts in a workflow execution

service/worker/diagnostics/invariants/invariant.go

@@ -0,0 +1,37 @@
+// The MIT License (MIT)
+
+// Copyright (c) 2017-2020 Uber Technologies Inc.
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+package invariants
+
+import "context"
+
+// InvariantCheckResult is the result from the invariant check
+type InvariantCheckResult struct {
+ InvariantType string
+ Reason string
+ Metadata []byte
+}
+
+// Invariant represents a condition of a workflow execution.
+type Invariant interface {
+ Check(context.Context) ([]InvariantCheckResult, error)
+}

service/worker/diagnostics/invariants/timeout.go

@@ -0,0 +1,159 @@
+// The MIT License (MIT)
+
+// Copyright (c) 2017-2020 Uber Technologies Inc.
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+package invariants
+
+import (
+ "context"
+ "encoding/json"
+ "fmt"
+
+ "github.com/uber/cadence/common/types"
+)
+
+type Timeout Invariant
+
+type timeout struct {
+ workflowExecutionHistory *types.GetWorkflowExecutionHistoryResponse
+}
+
+func NewTimeout(wfHistory *types.GetWorkflowExecutionHistoryResponse) Invariant {
+ return &timeout{
+ workflowExecutionHistory: wfHistory,
+ }
+}
+
+func (t *timeout) Check(context.Context) ([]InvariantCheckResult, error) {
+ result := make([]InvariantCheckResult, 0)
+ events := t.workflowExecutionHistory.GetHistory().GetEvents()
+ for _, event := range events {
+ if event.WorkflowExecutionTimedOutEventAttributes != nil {
+ timeoutType := event.GetWorkflowExecutionTimedOutEventAttributes().GetTimeoutType().String()
+ timeoutLimit := getWorkflowExecutionConfiguredTimeout(events)
+ result = append(result, InvariantCheckResult{
+ InvariantType: TimeoutTypeExecution.String(),
+ Reason: timeoutType,
+ Metadata: timeoutLimitInBytes(timeoutLimit),
+ })
+ }
+ if event.ActivityTaskTimedOutEventAttributes != nil {
+ timeoutType := event.GetActivityTaskTimedOutEventAttributes().GetTimeoutType()
+ eventScheduledID := event.GetActivityTaskTimedOutEventAttributes().GetScheduledEventID()
+ timeoutLimit, err := getActivityTaskConfiguredTimeout(eventScheduledID, timeoutType, events)
+ if err != nil {
+ return nil, err
+ }
+ result = append(result, InvariantCheckResult{
+ InvariantType: TimeoutTypeActivity.String(),
+ Reason: timeoutType.String(),
+ Metadata: timeoutLimitInBytes(timeoutLimit),
+ })
+ }
+ if event.DecisionTaskTimedOutEventAttributes != nil {
+ reason, metadata := reasonForDecisionTaskTimeouts(event, events)
+ result = append(result, InvariantCheckResult{
+ InvariantType: TimeoutTypeDecision.String(),
+ Reason: reason,
+ Metadata: metadata,
+ })
+ }
+ if event.ChildWorkflowExecutionTimedOutEventAttributes != nil {
+ timeoutType := event.GetChildWorkflowExecutionTimedOutEventAttributes().TimeoutType.String()
+ childWfInitiatedID := event.GetChildWorkflowExecutionTimedOutEventAttributes().GetInitiatedEventID()
+ timeoutLimit := getChildWorkflowExecutionConfiguredTimeout(childWfInitiatedID, events)
+ result = append(result, InvariantCheckResult{
+ InvariantType: TimeoutTypeChildWorkflow.String(),
+ Reason: timeoutType,
+ Metadata: timeoutLimitInBytes(timeoutLimit),
+ })
+ }
+ }
+ return result, nil
+}
+
+func reasonForDecisionTaskTimeouts(event *types.HistoryEvent, allEvents []*types.HistoryEvent) (string, []byte) {
+ eventScheduledID := event.GetDecisionTaskTimedOutEventAttributes().GetScheduledEventID()
+ attr := event.GetDecisionTaskTimedOutEventAttributes()
+ cause := attr.GetCause()
+ switch cause {
+ case types.DecisionTaskTimedOutCauseTimeout:
+ return attr.TimeoutType.String(), timeoutLimitInBytes(getDecisionTaskConfiguredTimeout(eventScheduledID, allEvents))
+ case types.DecisionTaskTimedOutCauseReset:
+ newRunID := attr.GetNewRunID()
+ return attr.Reason, []byte(newRunID)
+ default:
+ return "valid cause not available for decision task timeout", nil
+ }
+}
+
+func getWorkflowExecutionConfiguredTimeout(events []*types.HistoryEvent) int32 {
+ for _, event := range events {
+ if event.ID == 1 { // event 1 is workflow execution started event
+ return event.GetWorkflowExecutionStartedEventAttributes().GetExecutionStartToCloseTimeoutSeconds()
+ }
+ }
+ return 0
+}
+
+func getActivityTaskConfiguredTimeout(eventScheduledID int64, timeoutType types.TimeoutType, events []*types.HistoryEvent) (int32, error) {
+ for _, event := range events {
+ if event.ID == eventScheduledID {
+ attr := event.GetActivityTaskScheduledEventAttributes()
+ switch timeoutType {
+ case types.TimeoutTypeHeartbeat:
+ return attr.GetHeartbeatTimeoutSeconds(), nil
+ case types.TimeoutTypeScheduleToClose:
+ return attr.GetScheduleToCloseTimeoutSeconds(), nil
+ case types.TimeoutTypeScheduleToStart:
+ return attr.GetScheduleToStartTimeoutSeconds(), nil
+ case types.TimeoutTypeStartToClose:
+ return attr.GetStartToCloseTimeoutSeconds(), nil
+ default:
+ return 0, fmt.Errorf("unknown timeout type")
+ }
+ }
+ }
+ return 0, fmt.Errorf("activity scheduled event not found")
+}
+
+func getDecisionTaskConfiguredTimeout(eventScheduledID int64, events []*types.HistoryEvent) int32 {
+ for _, event := range events {
+ if event.ID == eventScheduledID {
+ return event.GetDecisionTaskScheduledEventAttributes().GetStartToCloseTimeoutSeconds()
+ }
+ }
+ return 0
+}
+
+func getChildWorkflowExecutionConfiguredTimeout(wfInitiatedID int64, events []*types.HistoryEvent) int32 {
+ for _, event := range events {
+ if event.ID == wfInitiatedID {
+ return event.GetStartChildWorkflowExecutionInitiatedEventAttributes().GetExecutionStartToCloseTimeoutSeconds()
+ }
+ }
+ return 0
+}
+
+func timeoutLimitInBytes(val int32) []byte {
+ valInBytes, _ := json.Marshal(val)
+ return valInBytes
+}