Questions tagged [consumer]
649 questions
-1
votes
1 answer
Java consumer with return
I don't understand why this code is working:
class Resource {
private Resource() {
System.out.println("created...");
}
public Resource op1() {
System.out.println("op1");
return this;
}
public Resource…
sakajato
- 5
- 2
-1
votes
1 answer
CONSUME_FROM_LAST offset is noneffective
I changed my consume group and start to consume,it consumed from last offset as default,it is right.
But when i restart this consumer it consume the history message,why it not consume the history message for the first time startup but do for the…
camus
- 11
- 4
-1
votes
1 answer
ActiveMQ non-persistent delivery mode limitations?
I am using ActiveMQ where I need following requirements
To have very fast consumers as my producers are already very fast
Need processing at lease 2K messages per second
Not require to process/consume messages again in case of server crash or…
Vishal Zanzrukia
- 4,902
- 4
- 38
- 82
-1
votes
1 answer
MultiThreading producer/consumer
I'm writing a basic producer/consumer threading code. I got most of it to work, but I'm having an issue with rand(). Or maybe my issues are deeper than rand(), and rand is only the tip of the iceberg. I don't want to do anything too complex, (none…
Jack Faber
- 37
- 6
-1
votes
1 answer
how to process a file exactly once
My Java application reads data from directory and puts into a common shared resource queue, the consumer will consume the event validate the event and save it into database, i want to process the files in the directory only once even if the…
Nani
- 1
- 1
-1
votes
1 answer
Readers - writer: Segmentation fault c++
So I have a little program that is simulating a webcam. So the frames (in my program the value of the data) have to be saved in 2 files and on screen. But when i run my code i get a segmentation fault;
#include
#include
#include…
Bram Kelchtermans
- 9
- 1
- 4
-1
votes
1 answer
Kafka stream queue - configure consumer property queuedchunks.max
Consumer's property queuedchunks.max meaning is a bit shadowy.
I see, that each stream in consumer has a queue with capacity defined (queuedchunks.max).
1)
But, if my consumer starts consume more topics (within single stream), will that affect…
Vladimir Nabokov
- 1,797
- 1
- 14
- 19
-1
votes
2 answers
One producer Multiple Consumer performance
My Java program has Client-Server architecture. In client side i create 1 message and with 10000 thread i send it to server as 10000 client send one message in same time. And in Server class side i have queue with fixed size and every messages…
ElimovIlkin
- 11
- 1
- 3
-1
votes
1 answer
How to use execl() to execute another program
I have an assignment on producer-consumer with using multiprocessor and shared memory
I have a question how to use execl() to execute another file
In my program will consist of 3 c files
parent.c : parent process
producer.c : producer…
someone
- 365
- 1
- 5
- 14
-1
votes
5 answers
Producer Consumer using threads
I’m writing a program that implements the Producer Consumer problem in Java using multithreading concepts. Below are few details how I’m supposed to do it:
1) The main thread should create a buffer with capacity specified as a command line…
user2201650
- 527
- 7
- 13
- 28
-1
votes
1 answer
Best Data Structure? - 2 Threads, 1 producer, 1 consumer
What is the best data structure to use to do the following:
2 Threads:
1 Produces (writes) to a data structure
1 Consumes (reads and then deletes) from the data structure.
Thread safe
Producer and Consumer can access data structure…
user1880826
- 81
- 1
- 5
-2
votes
1 answer
golang producer consumer number of messages received
I have written producer-consumer pattern in golang. Reading multiple csv files and processing records. I am reading all records of csv file in one go.
I want to log percentage of processing completion in interval of 5% of total records including all…
rahulpareekyx
- 51
- 1
- 8
-2
votes
1 answer
undertanding purchasin strategy and lead time of passengers - Python
ticket purchase lead time
<- press for image
Hi, I'm 31 and started python a month ago, R 3 month ago. Calculated ticket purchase lead time for specific Destination of Airline. image is attached from final excell.
tried plotting (bubble) but cannot…
-2
votes
1 answer
How to calculating the inflation adjustment for a period Verbraucherpreis index
How to calculate the inflation adjustment e.g. for Germany:
amount: 1.500,- EUR
index base: 2015
period: from 02.2020 to 02.2021
Christian Walter
- 11
- 1
-2
votes
2 answers
What is the difference between Unary-Operator functional-interface to Consumer functional-interface?
I was wondering what is the difference between Unary-Operator and Consumer functional interfaces?
Eventually, both of them get a function and apply it to a generic T.
Thank you in advance!
Shimon Cohen
- 85
- 6