[ https://issues.apache.org/jira/browse/TS-4879?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Leif Hedstrom updated TS-4879: ------------------------------ Backport to Version: 7.0.0 > NetVC leaks while hyper emergency occur on check_emergency_throttle() > --------------------------------------------------------------------- > > Key: TS-4879 > URL: https://issues.apache.org/jira/browse/TS-4879 > Project: Traffic Server > Issue Type: Bug > Components: Core > Reporter: Oknet Xu > Assignee: Oknet Xu > Fix For: 7.1.0 > > Time Spent: 4.5h > Remaining Estimate: 0h > > The con could be closed if hyper emergency occur on > check_emergency_throttle(). > But we did not check the con.fd while we get return from > check_emergency_throttle(). > For hyper emergency: > - The socket fd is removed from epoll while it is closed. > - A NetVC with a closed socket fd is created and callback NET_EVENT_OPEN to > SM. > Thus: > - The NetVC will never triggered by NetHandler. > - Only InactivityCop could handle the NetVC and the default timeout value is > 86400 secs. > For the counter: net_connections_currently_open_stat > - It is increased in “connect_re_internal()” > - It isn't decreased while the con.fd set to NO_FD due to hyper emergency > - Because it is decreased in close_UnixNetVConnection() only con.fd != NO_FD. > (TS-4178) -- This message was sent by Atlassian JIRA (v6.3.4#6332)