With the recent logstash releases, 5.* or 6.*, how much concurrency can it support?
We run logstash on Linux, the CentOS 7 series, and use TCP input.
Which factors affect the concurrency number? Memory, file descriptors?
Yes, all of that and more. You will have to benchmark it on your own to understand that question a
Number of CPU's you have, the MHZ they are, the tuning on the tcp input, the Network stack tunings, speed of your NIC, How complex your Filter section is, the size of your documents....
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