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Posted to issues@trafficserver.apache.org by "Daniel Xu (JIRA)" <ji...@apache.org> on 2016/11/30 19:26:59 UTC
[jira] [Commented] (TS-4636) traffic.out is open too many times
[ https://issues.apache.org/jira/browse/TS-4636?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15709516#comment-15709516 ]
Daniel Xu commented on TS-4636:
-------------------------------
I haven't done any deep digging, but my hunch is that it has to do with {{proxy/Main.cc::bind_outputs}}. That function is opening {{traffic.out}} and using {{dup2}} to to redirect stdout & stderr to {{traffic.out}}.
Correct me if I'm wrong b/c I'm not sure how dup2 is implemented w/ regards to opening & closing file descriptors.
> traffic.out is open too many times
> ----------------------------------
>
> Key: TS-4636
> URL: https://issues.apache.org/jira/browse/TS-4636
> Project: Traffic Server
> Issue Type: Bug
> Components: Core, Logging
> Reporter: James Peach
> Assignee: Daniel Xu
> Fix For: sometime
>
>
> Looks like something is wrong with {{traffic.out}}. I am expecting that this shold only be open twice (for stdout and stderr).
> {noformat}
> traffic_s 12272 nmadmin 0w CHR 1,3 0t0 1051 /dev/null
> traffic_s 12272 nmadmin 1w REG 202,1 72377 524555 /n/log/trafficserver/traffic.out
> traffic_s 12272 nmadmin 2w REG 202,1 72377 524555 /n/log/trafficserver/traffic.out
> traffic_s 12272 nmadmin 3r DIR 202,1 4096 2 /
> traffic_s 12272 nmadmin 4u REG 202,1 3839 524557 /n/log/trafficserver/manager.log
> traffic_s 12272 nmadmin 5u REG 202,1 72377 524555 /n/log/trafficserver/traffic.out
> traffic_s 12272 nmadmin 6u 0000 0,9 0 6384 anon_inode
> traffic_s 12272 nmadmin 7u REG 202,1 72377 524555 /n/log/trafficserver/traffic.out
> traffic_s 12272 nmadmin 8u 0000 0,9 0 6384 anon_inode
> traffic_s 12272 nmadmin 9u IPv4 19233316 0t0 TCP *:80 (LISTEN)
> traffic_s 12272 nmadmin 10u IPv4 19233317 0t0 TCP *:443 (LISTEN)
> traffic_s 12272 nmadmin 11u 0000 0,9 0 6384 anon_inode
> traffic_s 12272 nmadmin 12u 0000 0,9 0 6384 anon_inode
> traffic_s 12272 nmadmin 13u unix 0xffff8801e2aaf080 0t0 19233322 socket
> traffic_s 12272 nmadmin 14u REG 202,1 72377 524555 /n/log/trafficserver/traffic.out
> traffic_s 12272 nmadmin 15u REG 202,1 72377 524555 /n/log/trafficserver/traffic.out
> traffic_s 12272 nmadmin 16u unix 0xffff8800d9e63c00 0t0 19233956 socket
> {noformat}
> {noformat}
> [root@qa1 ~]# lsof -P -p $(pidof traffic_server) | grep traffic.out
> [ET_NET 2317 nobody 1u REG 202,1 54210 1711082 /opt/ats/var/log/trafficserver/traffic.out
> [ET_NET 2317 nobody 2u REG 202,1 54210 1711082 /opt/ats/var/log/trafficserver/traffic.out
> [ET_NET 2317 nobody 5u REG 202,1 54210 1711082 /opt/ats/var/log/trafficserver/traffic.out
> [ET_NET 2317 nobody 7u REG 202,1 54210 1711082 /opt/ats/var/log/trafficserver/traffic.out
> [ET_NET 2317 nobody 17u REG 202,1 54210 1711082 /opt/ats/var/log/trafficserver/traffic.out
> [ET_NET 2317 nobody 21u REG 202,1 54210 1711082 /opt/ats/var/log/trafficserver/traffic.out
> {noformat}
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