jackwoods

ENAMETOOLONG can cause performance issue

5

**Version:** tested both on 7.8 & 9.6 **Description of problem:** When ENAMETOOLONG frequently happens, it can make the server slow, and the IO load is high. Sometimes the server can...

execute gethostbyname() in the Tracer constructor is not optimal

2

Suggestion: can set via config. If not set, then call this function (maybe not to call it by default).