Log file doesn't exist.

[neocox]

Bug report

The log file is not created even if debug = true in agent section.

System info:

# telegraf --version
Telegraf - version 0.13.0
# cat /etc/centos-release
CentOS Linux release 7.2.1511 (Core)

Steps to reproduce:

1. Starts telegraf with debug=true in agent section.
2. Check log file at /var/log/telegraf/

Expected behavior:

Log file exists and has contents. This is based on rpm binary installation and by default must have it's own log file enabled.

Actual behavior:

Not log file exists.

Additional info:

Checked user and directory permissions:

# ps aux | grep telegraf
telegraf  1420  0.1  1.8 310212 19260 ?        Ssl  07:56   0:01 /usr/bin/telegraf -config /etc/telegraf/telegraf.conf -config-directory /etc/telegraf/telegraf.d
ll -d /var/log/telegraf
drwxr-xr-x. 2 telegraf telegraf 4096 May 11 22:54 /var/log/telegraf

Lsof didn't show any log file:

# lsof -p 1420
COMMAND   PID     USER   FD      TYPE             DEVICE SIZE/OFF   NODE NAME
telegraf 1420 telegraf  cwd       DIR              253,1     4096      2 /
telegraf 1420 telegraf  rtd       DIR              253,1     4096      2 /
telegraf 1420 telegraf  txt       REG              253,1 33438580  20717 /usr/bin/telegraf
telegraf 1420 telegraf  mem       REG              253,1  2112384   4970 /usr/lib64/libc-2.17.so
telegraf 1420 telegraf  mem       REG              253,1   142304   4999 /usr/lib64/libpthread-2.17.so
telegraf 1420 telegraf  mem       REG              253,1   164440   4957 /usr/lib64/ld-2.17.so
telegraf 1420 telegraf    0r      CHR                1,3      0t0   4674 /dev/null
telegraf 1420 telegraf    1u     unix 0xffff88003aff9680      0t0 825105 socket
telegraf 1420 telegraf    2u     unix 0xffff88003aff9680      0t0 825105 socket
telegraf 1420 telegraf    3r      CHR                1,9      0t0   4679 /dev/urandom
telegraf 1420 telegraf    5u  a_inode                0,9        0   4670 [eventpoll]
telegraf 1420 telegraf    7u     IPv4             825248      0t0    TCP XXXXX:57048->XXXXX:d-s-n (ESTABLISHED)
telegraf 1420 telegraf    9r      REG               0,18     1920  11387 /run/utmp

[AliGouta]

+1, Actually running Telegraf on Redhat-7 (I think it should be the same for centOs). We do not see the log files (stdout and stderr) in /var/log/telegraf. Instead, We see them in /var/log/messages and journalctl... I think that the logs should never go to /var/log/messages but instead in the log directory such as kapacitor.

[sparrc]

same issue as #872,

although I would say it's probably time that we start logging to /var/log. Consensus seems to be that people don't love journalctl...

[areski]

This has been reverted 5913f7c to align to InfluxDB 1.0 logging policy.