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136
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Can two EventGrid Subscriptions be triggered by a single `BlobCreated` action?
Can two (or more) EventGrid Subscriptions (from the same EventGrid System Topic or different topics) be triggered by a single CreateBlob event?
Example:
File is uploaded to a Blob Storage Container
...
0
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1
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143
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fd0 vs fd1 on libevent event_base
I have a simple event_base setup where I create an event to do a callback whenever data on fd 0 is ready
void callback(int fd, short event, void* arg) { // (1)
string s;
cin >> s;
cout <...
1
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1
answer
259
views
In a SimPy simulation, how can I simulate a bus waiting to be entirely filled?
I'm trying to use SimPy to simulate a bus that stops periodically in a station and then waits until it gets filled by N passengers (assume that the bus is empty each time it arrives at the station), ...
0
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1
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176
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ADF pipeline not triggered on 'appendblob' event type in ADLS Gen2
I have set up an ADF pipeline to trigger whenenver a new file lands in the ADLS Gen2(source). The pipeline should copy the json file from ADlS(Gen2) and sink in Azure SQL db.
In ADF, I am using event ...
2
votes
0
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148
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PyQtgraph - Plotting real-time data - Add "line labels" next to graph which move up and down in concert with real-time data (see illustration in post)
I'm plotting 2 lines on a pyqtgraph in real-time (simultaneously), and I'd like to add line labels on the right of the graph, that move up and down with the incoming real-time data, as if 'attached' ...
1
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1
answer
45
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Improve Authorization flow for common wallet belonging to multiple users
I have an implementation where I have one wallet (wallet per client/company) and a number of users belonging to one wallet.
I have hundreds of API calls per second for Authorization from users. When I ...
0
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0
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177
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python fail to read raw video file
I am working on event-based video processing. I am new to this now and I have some problems with loading the raw video file into python. Some suggestions would be greatly appreciated!
I first tried to ...
1
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1
answer
168
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How to convert EventHandler<MyMessage> parameter into async/await?
I have to consume the following API (bacically i have to subscribe for subject/channel/topic in Stan):
IStanSubscription Subscribe(string subject, StanSubscriptionOptions options, EventHandler<...
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0
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234
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How does the linux kernel listen to unblocking events?
I have a student question
I recently learned about how a system call such as read can block a process, and such processes will be put in the Blocked state until data becomes available in whatever it's ...
1
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1
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1k
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Event based integration with versioned events
I want to communicate my services using events. I gonna publish (internally) all my domain events and allow any other service to subscribe to them. But such approach couples those services togheter. I ...
1
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1
answer
2k
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Can I use Python 3 'with open(filename, mode) as file:' and keep it in an object to send it events?
I'm writing a manager class that will allow creation of different types of log files (raw, CSV, custom data format), and I'd like to keep the log file open to write lines as they come in. The log file ...
1
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2
answers
1k
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Wrap event based system with REST API
I'm designing a system that uses a microservices architecture with event-based communication (using Google Cloud Pub/Sub).
Each of the services is listening and publishing messages so between the ...
2
votes
2
answers
5k
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Event Based Kafka + Scheduling Design
In an event based e commerce system using kafka, how do you handle auto expiring of orders in pending_payment status?
Typically, whenever there's a request from customer to create a new order there ...
1
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1
answer
2k
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Microservice development with or without Akka.NET [closed]
We are trying to implement Microservice Architecture creating our new applications in our current environment using Asp.NET Core. The first generation of our Microservices will use a Request/Reply ...
0
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1
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48
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How to make sure all cases are covered in an event-based concurrent setup?
In SICP 3.4.2 there is the problem of the order of events in the different processes.
Suppose we have two processes, one with three ordered events (a,b,c) and one with three ordered events (x,y,z). ...