CODEWITHSUNDEEP
javalinuxsocketstcp
mohanrajvcbe
mohanrajvcbe

Reputation: 9

How to create 50000 tcp connection in single linux machine?

I tried to create 50000 tcp connection in single linux machine but i was not able to create 50000 connections only 10800 tcp connections were created.after that i got java.lang.OutOfMemoryError: unable to create new native thread.

I changed ulimit -n 200000, nproc in /etc/security/limits.d/90-nproc.conf, /etc/sysctl.confsysctl -w net.ipv4.tcp_mem='8388608 8388608 8388608' sysctl -w net.ipv4.tcp_rmem='4096 87380 8388608' sysctl -w net.ipv4.tcp_wmem='4096 65536 8388608

I changed statck size to ulimit -s 100000 Help me to create 50000 tcp connections in single linux machine

Upvotes: 0

Views: 500

Answers (1)

m0skit0
m0skit0

Reputation: 25873

Not possible. Independently from your OutOfMemoryError, which can be solved with more memory, each socket in Linux is actually a file descriptor, and a given process cannot have 50k open file descriptors.

Upvotes: 1

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