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https://github.com/hanzoai/tasks.git
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Yu XiaandGitHub
16309ad78d
<!-- 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
112 lines
3.4 KiB
Go
112 lines
3.4 KiB
Go
// The MIT License
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//
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// Copyright (c) 2020 Temporal Technologies Inc. All rights reserved.
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//
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// Copyright (c) 2020 Uber Technologies, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//go:generate mockgen -copyright_file ../../../LICENSE -package $GOPACKAGE -source $GOFILE -destination buffer_event_flusher_mock.go
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package ndc
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import (
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"context"
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"go.temporal.io/server/common/cluster"
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"go.temporal.io/server/common/log"
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"go.temporal.io/server/service/history/shard"
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"go.temporal.io/server/service/history/workflow"
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wcache "go.temporal.io/server/service/history/workflow/cache"
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)
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type (
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BufferEventFlusher interface {
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flush(
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ctx context.Context,
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) (workflow.Context, workflow.MutableState, error)
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}
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BufferEventFlusherImpl struct {
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shardContext shard.Context
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clusterMetadata cluster.Metadata
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wfContext workflow.Context
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mutableState workflow.MutableState
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logger log.Logger
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}
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)
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var _ BufferEventFlusher = (*BufferEventFlusherImpl)(nil)
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func NewBufferEventFlusher(
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shardContext shard.Context,
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wfContext workflow.Context,
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mutableState workflow.MutableState,
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logger log.Logger,
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) *BufferEventFlusherImpl {
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return &BufferEventFlusherImpl{
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shardContext: shardContext,
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clusterMetadata: shardContext.GetClusterMetadata(),
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wfContext: wfContext,
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mutableState: mutableState,
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logger: logger,
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}
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}
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func (r *BufferEventFlusherImpl) flush(
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ctx context.Context,
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) (workflow.Context, workflow.MutableState, error) {
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// check whether there are buffered events, if so, flush it
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// NOTE: buffered events does not show in version history or next event id
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if !r.mutableState.HasBufferedEvents() {
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if r.mutableState.HasStartedWorkflowTask() && r.mutableState.IsTransientWorkflowTask() {
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if err := r.mutableState.ClearTransientWorkflowTask(); err != nil {
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return nil, nil, err
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}
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// now transient task is gone
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}
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return r.wfContext, r.mutableState, nil
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}
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targetWorkflow := NewWorkflow(
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r.clusterMetadata,
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r.wfContext,
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r.mutableState,
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wcache.NoopReleaseFn,
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)
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if err := targetWorkflow.FlushBufferedEvents(); err != nil {
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return nil, nil, err
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}
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// the workflow must be updated as active, to send out replication tasks
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if err := targetWorkflow.context.UpdateWorkflowExecutionAsActive(
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ctx,
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r.shardContext,
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); err != nil {
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return nil, nil, err
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}
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r.wfContext = targetWorkflow.GetContext()
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r.mutableState = targetWorkflow.GetMutableState()
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return r.wfContext, r.mutableState, nil
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}
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