/
constants.go
109 lines (96 loc) · 3.99 KB
/
constants.go
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// The MIT License
//
// Copyright (c) 2020 Temporal Technologies Inc. All rights reserved.
//
// Copyright (c) 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 common
import (
"math"
"time"
"go.temporal.io/server/common/debug"
)
const (
// FirstEventID is the id of the first event in the history
FirstEventID int64 = 1
// LastEventID is the id of the last possible event in the history
LastEventID int64 = math.MaxInt64
// EmptyEventID is the id of the empty event
EmptyEventID int64 = 0
// EmptyVersion is used as the default value for failover version when no value is provided
EmptyVersion int64 = 0
// EndEventID is the id of the end event, here we use the int64 max
EndEventID int64 = 1<<63 - 1
// BufferedEventID is the id of the buffered event
BufferedEventID int64 = -123
// EmptyEventTaskID is uninitialized id of the task id within event
EmptyEventTaskID int64 = 0
// TransientEventID is the id of the transient event
TransientEventID int64 = -124
// FirstBlobPageToken is the page token identifying the first blob for each history archival
FirstBlobPageToken = 1
// LastBlobNextPageToken is the next page token on the last blob for each history archival
LastBlobNextPageToken = -1
// EndMessageID is the id of the end message, here we use the int64 max
EndMessageID int64 = 1<<63 - 1
)
const (
// GetHistoryMaxPageSize is the max page size for get history
GetHistoryMaxPageSize = 256
// ReadDLQMessagesPageSize is the max page size for read DLQ messages
ReadDLQMessagesPageSize = 1000
)
const (
// MinLongPollTimeout is the minimum context timeout for long poll API, below which
// the request won't be processed
MinLongPollTimeout = time.Second * 2
// CriticalLongPollTimeout is a threshold for the context timeout passed into long poll API,
// below which a warning will be logged
CriticalLongPollTimeout = time.Second * 20
)
const (
// DefaultWorkflowTaskTimeout sets the Default Workflow Task timeout for a Workflow
DefaultWorkflowTaskTimeout = 10 * time.Second * debug.TimeoutMultiplier
// MaxWorkflowTaskStartToCloseTimeout sets the Max Workflow Task start to close timeout for a Workflow
MaxWorkflowTaskStartToCloseTimeout = 120 * time.Second
)
const (
// DefaultTransactionSizeLimit is the largest allowed transaction size to persistence
DefaultTransactionSizeLimit = 4 * 1024 * 1024
)
const (
// TimeoutFailureTypePrefix is the prefix for timeout failure types
// used in retry policy
// the actual failure type will be prefix + enums.TimeoutType.String()
// e.g. "TemporalTimeout:StartToClose" or "TemporalTimeout:Heartbeat"
TimeoutFailureTypePrefix = "TemporalTimeout:"
)
const (
// Limit for schedule notes field
ScheduleNotesSizeLimit = 1000
)
const (
// DefaultQueueReaderID is the default readerID when loading history tasks
DefaultQueueReaderID int64 = 0
)
const (
// DefaultOperatorRPSRatio is the default percentage of rate limit that should be used for operator priority requests
DefaultOperatorRPSRatio float64 = 0.2
)