Presto random ports

[xhsky]

After presto starts, 5 random ports will be opened. What are the functions of these ports? How to customize?

[agrawalreetika]

Hi @xhsky, Could you please mention what are these ports? Are these opened in default mode?

[xhsky]

Yes, open by default.

ss -tlunp | grep presto
tcp    LISTEN     0      50       :::36035                :::*                   users:(("presto-server",pid=27764,fd=198))
tcp    LISTEN     0      50       :::45571                :::*                   users:(("presto-server",pid=27764,fd=196))
tcp    LISTEN     0      128      :::44740                :::*                   users:(("presto-server",pid=27764,fd=347))
tcp    LISTEN     0      50       :::33061                :::*                   users:(("presto-server",pid=27764,fd=197))
tcp    LISTEN     0      128      :::8080                 :::*                   users:(("presto-server",pid=27764,fd=184))
tcp    LISTEN     0      128      :::45750                :::*                   users:(("presto-server",pid=27764,fd=186))

Except for 8080, the other five ports will be different each time they start

[agrawalreetika]

As per I checked one of the port is for JmxAgent for which information is getting logged in presto server.log but I didn't see any information is getting logged about other ports in the server log

[xhsky]

Yes, I only found the relevant records of port 8080 in the log, and no other ports were found. And I tried trino and found that it only appears as a port 8080, and no other random ports are generated