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Yu XiaandGitHub 16309ad78d Move mutable state cache to host level (#4833)
<!-- Describe what has changed in this PR -->
**What changed?**
Move mutable state cache to host level. 

<!-- Tell your future self why have you made these changes -->
**Why?**
For better utilization. This will be better to handle hot shard problem
with full pinned items in cache.

<!-- How have you verified this change? Tested locally? Added a unit
test? Checked in staging env? -->
**How did you test it?**
Local server + unit tests

<!-- Assuming the worst case, what can be broken when deploying this
change to production? -->
**Potential risks**
N/A

<!-- Is this PR a hotfix candidate or require that a notification be
sent to the broader community? (Yes/No) -->
**Is hotfix candidate?**
No
2023-09-06 23:35:38 +00:00

82 lines
2.8 KiB
Go

// 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 describemutablestate
import (
"context"
"go.temporal.io/server/api/historyservice/v1"
"go.temporal.io/server/common/definition"
"go.temporal.io/server/common/namespace"
"go.temporal.io/server/service/history/api"
"go.temporal.io/server/service/history/shard"
"go.temporal.io/server/service/history/workflow"
)
func Invoke(
ctx context.Context,
req *historyservice.DescribeMutableStateRequest,
shardContext shard.Context,
workflowConsistencyChecker api.WorkflowConsistencyChecker,
) (_ *historyservice.DescribeMutableStateResponse, retError error) {
namespaceID := namespace.ID(req.GetNamespaceId())
err := api.ValidateNamespaceUUID(namespaceID)
if err != nil {
return nil, err
}
weCtx, err := workflowConsistencyChecker.GetWorkflowContext(
ctx,
nil,
api.BypassMutableStateConsistencyPredicate,
definition.NewWorkflowKey(
req.NamespaceId,
req.Execution.WorkflowId,
req.Execution.RunId,
),
workflow.LockPriorityHigh,
)
if err != nil {
return nil, err
}
defer func() { weCtx.GetReleaseFn()(retError) }()
response := &historyservice.DescribeMutableStateResponse{}
if weCtx.GetContext().(*workflow.ContextImpl).MutableState != nil {
msb := weCtx.GetContext().(*workflow.ContextImpl).MutableState
response.CacheMutableState = msb.CloneToProto()
}
// clear mutable state to force reload from persistence. This API returns both cached and persisted version.
weCtx.GetContext().Clear()
mutableState, err := weCtx.GetContext().LoadMutableState(ctx, shardContext)
if err != nil {
return nil, err
}
response.DatabaseMutableState = mutableState.CloneToProto()
return response, nil
}