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If the email server is not configured properly, or has some strict requirements that need a `FROM_FILTER`, or if the mail server is down temporarily the server in production will just display a 500 er…
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I'd like to build an app that fetches rows of data from a database and then invokes some generic callback of the form `HandleRows(ctx, rows...) error`. It'd be nice to have a single binary for the pri…
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As outlined in https://github.com/openedx/event-bus-kafka/issues/10 we should make sure to flush out any remaining unsent batch of events when the Django server is shutting down.
- Call flush() at …
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It is needed to invent some way to rollback failed business scenarios.
For example scenario "create meeting group proposal" started at meetings module and finished at administration module. When meet…
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Performance issues can occur when there are high quantities of MVCC garbage data. MVCC garbage data can lead to downstream issues like resource saturation that we’ve seen in several customer workloads…
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Вопросы к ментору:
1) Многопоточность? куда её?
2) Насколько окей наш проект в плане сложности?
3) Тесты надо ли?
4) Какие критерии успешной сдачи итогового проекта? Что за баллы на ретро дают?
5…
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Summarize the following topics:
- THE DUAL-WRITE DILEMMA
Frequently microservices need to update two separate systems. Eg. Database + Message Queue
This is known as the Dual-Write problem. It i…
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You rely on some deliberately selected 3rd party libs but the outbox implementation is part of your own code base.
I have played with https://github.com/dotnetcore/CAP and it feels very much ok.
I …
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Hello !
On our production environnement, we have a process that regularly polls data from a database and put the data inside Redis Streams using XADD commands (we use a transactionnal outbox patter…
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Hello,
as already stated in the [Axon forum](https://groups.google.com/forum/m/#!topic/axonframework/_VNvbIATXj4) there is a consistency gap in Axon in conjunction with state-based aggregates.
I…