event-driven architecture
Event-driven architecture (EDA) is a software architecture pattern promoting the production, detection, consumption of, and reaction to events.
Questions tagged [eda]
108 questions
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0 answers
Javaspaces, Rest and event-driven architectures
I'd like to know more about the convergence of Javaspaces, REST and Event-driven architectures. Where I could look for information about all technologies together, please?
Thanks ^_^
Sergio
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1 answer
Domain events with composite pattern
I am trying to model a real-time collaboration application with DDD. A particular feature with some Hotspot events is CAD visualization.
Problem #1
Multiple participants join a 3D virtual environment and one of them is designated as a facilitator.…
Shakil Ahamed
- 587
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- 18
1
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1 answer
Row wise frequency of each word in another column
How to calculate:
frequency of each word, present in another column of same row/index, i.e.
case_description_new
item_new
This row contains word_13 word_43 word_11
word_11 word_12 word_13
This row contains word_31 word_34…
fast_crawler
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- 7
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How to measure the progress of an event processing in case of the event is going through multiple micro-services?
I have some micro-services, each consuming messages from messaging queue (Azure event hub) and producing a response back to the messaging queue. Initially, a start message is posted to the messaging queue, and the way these messages are consumed…
hsingh
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1 answer
Bar plot in seaborn
While doing EDA of Titanic dataset in Kaggle I combined "Parch" and "SibSp" values into single feature "relative" containing total no of relatives of each passenger.
data['relative'] = data['Parch'] + data['SibSp']
On plotting barplot relatives vs…
Amish
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- 11
1
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1 answer
I am not able to fetch accurate date based on condition it is giving me wring output
i am not able to fetch accurate date based on condition it is giving me wring output.
i want to fetch the date which is before 01/01/2010
but it is giving true even date is less than 01/01.2010
https://i.stack.imgur.com/zLlV6.png
Vasant Vyas
- 11
- 2
1
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1 answer
Event Driven Architecture - backend services with two interfaces (interface types)
Several articles about Event Driven Architectures recommend an event broker (for example Kafka via topics) to integrate backend services and in addition RESTful interfaces for these backend services (here an example from Guido Schmutz: Building…
Micky
- 95
- 6
1
vote
1 answer
Condition Based Custom Flag
I've a dataset
id
ref
name
conditionCol
1
123
a
no_error
1
456
b
error
1
789
c
no_error
2
231
d
no_error
2
312
e
no_error
2
546
f
no_error
3
645
g
error
3
879
h
error
4
789
i
no_error
4
978
j
no_error
I'm trying to…
fast_crawler
- 91
- 7
1
vote
1 answer
Counting all words in a column of a dataset pandas
I am carrying out EDA on a dataset and want to count the total number of words in a column, before and after deleting duplicates.
Here is my code:
print(train_dataset['text'].apply(lambda x: len(x.split(' '))).sum())
It is throwing this…
Adekunle Agboke
- 11
- 3
1
vote
1 answer
How can I change the caption for the Heatmap as the method takes no arguments?
I plotted a graph and would like to change the title but I don't see any parameter for this:
code:
klib.corr_plot(df)
I need to change the caption which is fixed at 'Feature-correlation (pearson)'
Gairik Chakraborty
- 21
- 3
1
vote
1 answer
Using SOA/EDA in a ECommerce application
As a company directive we are looking at using SOA/EDA as a targeted Architecture for re-factoring our 12 year old ECommerce site. The site has run its course and has become a challenge in adding new features and keeping it running.
Based on a lot…
boyd4715
- 2,701
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- 75
1
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1 answer
NServicebus publishing event - recieves empty message
I keep recieving the following message from my denormalizer host after publishing an event in my domain:
2011-07-22 14:18:32,374 [Worker.5] WARN NServiceBus.Unicast.UnicastBus [(null)]
<(null)> - Received an empty message - ignoring.
I am just…
user156888
1
vote
1 answer
How and when to deal with outliers in your dataset (general strategy)
I stumbled about the following problem:
I'm working on a beginners project in data science. I got my test and train data splits and right now I'm analyzing every feature, then adding it to either a dataframe for discretised continuous variables or a…
Chris
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1 answer
On demand horizontally scaling event driven architectures
What is the best way to horizontally scale an event driven architecture when load increases?
Many people suggest using Kakfa as the message queue source for EDA
however Kafka only allows one consumer in a consumer group per
partition.…
Brian Wilson
- 11
- 1
1
vote
0 answers
Multivariate correlation filters
How to identify the correlation between the association between two categorical features with the target variable.
For example:
If three features with me 2 categorical and 1 target variable
While identifying the correlation of each feature with the…
pratha1995
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