【Enhancement】优化主流程lookProcessChain方法 issue #3513 #3592
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LilMosey
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Describe what this PR does / why we need it
issue #3513
（详细信息都在issue里）
Does this pull request fix one issue?
issue #3513
Describe how you did it
Describe how to verify it
实现逻辑参照Collections.synchronizedMap()
原逻辑做了一次copyOnWrite操作，加锁后其实没必要进行copyOnWrite造成了资源浪费增加gc压力
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