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SAGA模式怎么确保逆向操作一定成功？ #18

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panyox opened this issue Aug 23, 2021 · 3 comments
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SAGA模式怎么确保逆向操作一定成功？ #18

panyox opened this issue Aug 23, 2021 · 3 comments
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@panyox
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panyox commented Aug 23, 2021

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@yedf2
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yedf2 commented Aug 23, 2021

按照saga模式的协议，逆向是不允许失败的，如果应用程序返回失败，那么就是出现bug了。
dtm会不断重试，直到saga的逆向返回成功。
为了避免程序bug导致逆向一直不成功，建议开发者对全局事务表进行监控，发现重试超过3次的事务，发出报警，由运维人员找开发手动处理

@XIELongDragon
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XIELongDragon commented Sep 16, 2021 •
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按照saga模式的协议，逆向是不允许失败的，如果应用程序返回失败，那么就是出现bug了。
dtm会不断重试，直到saga的逆向返回成功。
为了避免程序bug导致逆向一直不成功，建议开发者对全局事务表进行监控，发现重试超过3次的事务，发出报警，由运维人员找开发手动处理

如果这样，那建议DTM服务器提供metric接口，便于接入Prometheus, grafana等进行自动监控和报警

@wz14 wz14 mentioned this issue Sep 24, 2021
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@yedf2
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yedf2 commented Sep 26, 2021

按照saga模式的协议，逆向是不允许失败的，如果应用程序返回失败，那么就是出现bug了。
dtm会不断重试，直到saga的逆向返回成功。
为了避免程序bug导致逆向一直不成功，建议开发者对全局事务表进行监控，发现重试超过3次的事务，发出报警，由运维人员找开发手动处理

如果这样，那建议DTM服务器提供metric接口，便于接入Prometheus, grafana等进行自动监控和报警

@XIELongDragon 已添加Prometheus监控，在端口8889下的/api/metrics

@li-xiao-shuang li-xiao-shuang added the question Further information is requested label Nov 22, 2021
@yedf2 yedf2 closed this as completed Jan 24, 2022
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@XIELongDragon @li-xiao-shuang @yedf2 @panyox