8000 Saga模式下,分支事务超时问题 · Issue #519 · dtm-labs/dtm · GitHub
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Saga模式下,分支事务超时问题 #519

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1528992118 opened this issue Aug 18, 2024 · 2 comments
Open

Saga模式下,分支事务超时问题 #519

1528992118 opened this issue Aug 18, 2024 · 2 comments

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@1528992118
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我使用的Dtm Server版本为1.18.0,下面是我注册的本次saga事务信息:

{
	"steps": [{
		"action": "http://localhost:9002/ccfmonitor/internal/v1/saga/test/action",
		"compensate": "http://localhost:9002/ccfmonitor/internal/v1/saga/test/compensate"
	}, {
		"action": "http://localhost:9002/ccfmonitor/internal/v1/saga/test2/action",
		"compensate": "http://localhost:9002/ccfmonitor/internal/v1/saga/test2/compensate"
	}],
	"payloads": ["{\"name\":\"dtm\"}", "{\"name\":\"dtm\"}"],
	"customData": "{\"concurrent\":true,\"orders\":{\"0\":[1]}}",
	"waitResult": false,
	"timeoutToFail": 30,
	"retryInterval": 60,
	"passthroughHeaders": [],
	"branchHeaders": {},
	"gid": "ef6cb7d2-f4e1-4905-ba26-b8c700de0427",
	"transType": "saga",
	"subType": "saga"
}

在使用过程中,主要想看下分支事务在模拟耗时情况下,DTM的处理机制,当我在ccfmonitor/internal/v1/saga/test2/action具体代码中模拟了线程睡眠10秒后,我发现Dtm Server会判定本次action接口有问题,并一直触发重试机制。这里我有个疑问,我不是将全局的超时时间设置为了30秒,为什么Dtm Server还会一直触发重试?

image

@yedf2
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yedf2 commented Sep 28, 2024

接口调用超时是比较短的,不是通过timeoutToFail设置的。接口调用一般不会超过3秒的。一个接口调用超过3秒了,通常意味着设计有问题。

@sunflower10086
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接口调用超时是比较短的,不是通过timeoutToFail设置的。接口调用一般不会超过3秒的。一个接口调用超过3秒了,通常意味着设计有问题。

这里可以在 dtmcli 中加一个可选配置吗,有时业务接口确实需要长时间的超时时间

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