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add shared raft timer, default false #414

Merged
merged 9 commits into from
Apr 8, 2020
Merged

add shared raft timer, default false #414

merged 9 commits into from
Apr 8, 2020

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fengjiachun
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@fengjiachun fengjiachun commented Apr 1, 2020 •
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Motivation:

Add shared raft timer based on ScheduledThreadPoolExecutor

Modification:

  1. Add RaftTimerFactory based on SPI
  2. default do not share the timer, users can shared every timer with NodeOptions
  3. shared timer based on ref count, will be destroyed when ref = 0
  4. shared TimerManager

Result:

Fixes #412

@fengjiachun fengjiachun mentioned this pull request Apr 1, 2020
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@sofastack-bot sofastack-bot bot added size/XXL and removed size/XL labels Apr 2, 2020
@fengjiachun
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OS version (e.g. uname -a): Darwin ali-83454.local 18.7.0 Darwin Kernel Version 18.7.0: Tue Aug 20 16:57:14 PDT 2019; root:xnu-4903.271.2~2/RELEASE_X86_64 x86_64

  1. default:
    image

  2. share timer:

NodeOptions#timerPoolSize=-1  // -1 mean use global scheduler pool
NodeOptions#sharedElectionTimer=true
NodeOptions#sharedVoteTimer=true
NodeOptions#sharedStepDownTimer=true
NodeOptions#sharedSnapshotTimer=true

image

fengjiachun
fengjiachun commented Apr 3, 2020
View reviewed changes
jraft-core/src/main/java/com/alipay/sofa/jraft/util/timer/DefaultRaftTimerFactory.java
private static final String GLOBAL_VOTE_TIMER_WORKERS = "jraft.timer.global_vote_timer_workers";
private static final String GLOBAL_STEP_DOWN_TIMER_WORKERS = "jraft.timer.global_step_down_timer_workers";
private static final String GLOBAL_SNAPSHOT_TIMER_WORKERS = "jraft.timer.global_snapshot_timer_workers";
private static final String GLOBAL_SCHEDULER_WORKERS = "jraft.timer.global_scheduler_workers";
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这个配置需要补充到文档

@killme2008
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NodeOptions#timerPoolSize=-1 过于 trick，感觉加个明确的布尔选项更合适。

@fengjiachun
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NodeOptions#timerPoolSize=-1 过于 trick，感觉加个明确的布尔选项更合适。

恩，已添加 sharedTimerPool 选项

@fengjiachun fengjiachun merged commit 5d47497 into master Apr 8, 2020
@fengjiachun fengjiachun deleted the feat/shared_raft_timer branch April 8, 2020 03:10
@fengjiachun fengjiachun mentioned this pull request Apr 9, 2020
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@fengjiachun fengjiachun mentioned this pull request Apr 17, 2020
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zongtanghu pushed a commit that referenced this pull request Apr 28, 2020
@fengjiachun @zongtanghu
add shared raft timer, default false (#414)
fddb568 
* add shared raft timer, default false

* more robust

* add shared scheduler

* clear necessary code

* minor change

* fix unit test

* add channel init low/high write buf water mark for bolt impl

* minor fix

* minor fix for CR
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@killme2008 killme2008 killme2008 approved these changes

@SteNicholas SteNicholas Awaiting requested review from SteNicholas

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Multi jraft Group CPU usage is high
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@fengjiachun @killme2008