Re: Thruk reports /var/tmp/live.sock: No such file or directory inspite of the file being present

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Hi Daniel,

Please find the details which are as below :-

[root@e2e-14-53 ~]# namei -mx /var/tmp/live.sock
f: /var/tmp/live.sock
 Dr-xr-xr-x /
 drwxr-xr-x var
 drwxrwxrwt tmp
 srw-rw-rw- live.sock
[root@e2e-14-53 ~]# namei -mol /var/tmp/live.sock
f: /var/tmp/live.sock
dr-xr-xr-x root   root   /
drwxr-xr-x root   root   var
drwxrwxrwt root   root   tmp
srw-rw-rw- nagios apache live.sock
[root@e2e-14-53 ~]#

#cat nagios.log
[1480131966] Caught SIGTERM, shutting down...
[1480131966] Successfully shutdown... (PID=3092)
[1480131966] Event broker module 'NERD' deinitialized successfully.
[1480131968] livestatus: Socket thread has terminated
[1480131968] Event broker module '/usr/lib64/check_mk/livestatus.o' deinitialized successfully.
[1480131968] Nagios 4.2.3 starting... (PID=22207)
[1480131968] Local time is Sat Nov 26 09:16:08 IST 2016
[1480131968] LOG VERSION: 2.0
[1480131968] qh: Socket '/usr/local/nagios/var/rw/nagios.qh' successfully initialized
[1480131968] qh: core query handler registered
[1480131968] nerd: Channel hostchecks registered successfully
[1480131968] nerd: Channel servicechecks registered successfully
[1480131968] nerd: Channel opathchecks registered successfully
[1480131968] nerd: Fully initialized and ready to rock!
[1480131968] wproc: Successfully registered manager as @wproc with query handler
[1480131968] wproc: Registry request: name=Core Worker 22212;pid=22212
[1480131968] wproc: Registry request: name=Core Worker 22211;pid=22211
[1480131968] wproc: Registry request: name=Core Worker 22209;pid=22209
[1480131968] wproc: Registry request: name=Core Worker 22210;pid=22210
[1480131968] livestatus: Livestatus 1.2.8p11 by Mathias Kettner. Socket: '/var/tmp/live.sock'
[1480131968] livestatus: Please visit us at http://mathias-kettner.de/
[1480131968] livestatus: Hint: please try out OMD - the Open Monitoring Distribution
[1480131968] livestatus: Please visit OMD at http://omdistro.org
[1480131968] livestatus: Finished initialization. Further log messages go to /usr/local/nagios/var/livestatus.log
[1480131968] Event broker module '/usr/lib64/check_mk/livestatus.o' initialized successfully.
[1480131968] Successfully launched command file worker with pid 22213
[1480131968] TIMEPERIOD TRANSITION: 24x7;-1;1
[1480131968] TIMEPERIOD TRANSITION: 24x7_sans_holidays;-1;1
[1480131968] TIMEPERIOD TRANSITION: none;-1;0
[1480131968] TIMEPERIOD TRANSITION: us-holidays;-1;0
[1480131968] TIMEPERIOD TRANSITION: workhours;-1;0


#cat thruk.log
[2016/11/26 09:16:08][xxx.xxx.xxx.xxx][ERROR][Thruk] No Backend available
[2016/11/26 09:16:08][xxx.xxx.xxx.xxx][ERROR][Thruk] on page: http://xxx.xxx.xxx.xxx/thruk/cgi-bin/status.cgi?hostgroup=all&style=hostdetail&_=1480131969407
[2016/11/26 09:16:08][xxx.xxx.xxx.xxx][ERROR][Thruk] prod: ERROR: failed to open socket /var/tmp/live.sock: No such file or directory.. (/var/tmp/live.sock)

[root@e2e-14-53 httpd]# cat access_log
127.0.0.1 - thrukadmin [26/Nov/2016:09:16:08 +0530] "POST /thruk/cgi-bin/restricted.cgi HTTP/1.1" 200 15 "-" "thruk_auth"
117.192.245.7 - - [26/Nov/2016:09:16:08 +0530] "GET /thruk/cgi-bin/status.cgi?hostgroup=all&style=hostdetail&_=1480131969407 HTTP/1.1" 500 6103 "http://xxx.xxx.xxx.xxx/thruk/cgi-bin/status.cgi?hostgroup=all&style=hostdetail" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:50.0) Gecko/20100101 Firefox/50.0"
127.0.0.1 - thrukadmin [26/Nov/2016:09:17:39 +0530] "POST /thruk/cgi-bin/restricted.cgi HTTP/1.1" 200 15 "-" "thruk_auth"
117.192.245.7 - - [26/Nov/2016:09:17:39 +0530] "GET /thruk/cgi-bin/status.cgi?hostgroup=all&style=hostdetail&_=1480132059956 HTTP/1.1" 500 6103 "http://xxx.xxx.xxx.xxx/thruk/cgi-bin/status.cgi?hostgroup=all&style=hostdetail" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:50.0) Gecko/20100101 Firefox/50.0"
127.0.0.1 - - [26/Nov/2016:09:18:15 +0530] "POST /thruk/cgi-bin/remote.cgi?startup HTTP/1.1" 200 13 "-" "Wget/1.14 (linux-gnu)"
[root@e2e-14-53 httpd]# cat error_log
[Sat Nov 26 09:18:14.506139 2016] [fcgid:warn] [pid 4240] mod_fcgid: cleanup zombie process 4248
[root@e2e-14-53 httpd]#

Regards,

Kaushal


On Sat, Nov 26, 2016 at 12:10 AM, Daniel <dferradal@xxxxxxxxx> wrote:
may be worth checking with namei command to see the permissions are correct for the whole path not just the end socket file.

namei -mx /var/tmp/live.sock
or
namei -mol  /var/tmp/live.sock

Also what does the httpd error log say?

2016-11-25 19:35 GMT+01:00 Kaushal Shriyan <kaushalshriyan@xxxxxxxxx>:


On Fri, Nov 25, 2016 at 11:56 PM, Daniel <dferradal@xxxxxxxxx> wrote:
If apache is supposed to interact with that socket file, the user it runs as at least should be in the nagios group looking at how you configured its permissions, or you could change its ownership to nagios:www-data (or however the user httpd uses is named)


Hi Daniel

I am still seeing 

No Backend available
None of the configured Backends could be reached, please have a look at the logfile for detailed information and make sure the core is up and running.

Details:
prod: ERROR: failed to open socket /var/tmp/live.sock: No such file or directory.. (/var/tmp/live.sock)

ls -l /var/tmp/live.sock
srw-rw-rw- 1 nagios apache 0 Nov 25 18:12 /var/tmp/live.sock 


[root@e2e-14-53 ~]# id nagios
uid=1000(nagios) gid=1000(nagios) groups=1000(nagios),48(apache),1001(nagcmd)
[root@e2e-14-53 ~]# id apache
uid=48(apache) gid=48(apache) groups=48(apache),1000(nagios),1001(nagcmd),1003(prod)
[root@e2e-14-53 ~]#


[root@e2e-14-53 ~]# ps aux | grep apache
apache    4240  0.0  0.0 264664  4168 ?        S    Nov25   0:00 /usr/sbin/httpd -DFOREGROUND
apache    4242  0.0  0.1 348296  8524 ?        S    Nov25   0:00 /usr/sbin/httpd -DFOREGROUND
apache    4243  0.0  0.0 347956  8000 ?        S    Nov25   0:00 /usr/sbin/httpd -DFOREGROUND
apache    4245  0.0  0.1 347960  8380 ?        S    Nov25   0:00 /usr/sbin/httpd -DFOREGROUND
apache    4246  0.0  0.0 347956  8004 ?        S    Nov25   0:00 /usr/sbin/httpd -DFOREGROUND
apache    4247  0.0  0.1 347936  8228 ?        S    Nov25   0:00 /usr/sbin/httpd -DFOREGROUND
apache    4248  0.0  0.4 117508 36368 ?        S    Nov25   0:00 /usr/bin/perl /usr/share/thruk/script/thruk_fastcgi.pl
prod      4355  0.0  0.0 106668  7724 ?        Ss   Nov25   0:00 /usr/sbin/httpd -f /omd/sites/prod/etc/apache/apache.conf
prod      4360  0.0  0.0 106596  4328 ?        S    Nov25   0:00 /usr/sbin/httpd -f /omd/sites/prod/etc/apache/apache.conf
prod      4362  0.0  0.0 106668  5216 ?        S    Nov25   0:00 /usr/sbin/httpd -f /omd/sites/prod/etc/apache/apache.conf
prod      4363  0.0  0.0 106668  5216 ?        S    Nov25   0:00 /usr/sbin/httpd -f /omd/sites/prod/etc/apache/apache.conf
prod      4365  0.0  0.1 156684 13156 ?        S    Nov25   0:00 /usr/sbin/httpd -f /omd/sites/prod/etc/apache/apache.conf
prod      4366  0.0  0.0 106668  4712 ?        S    Nov25   0:00 /usr/sbin/httpd -f /omd/sites/prod/etc/apache/apache.conf
prod      4367  0.0  0.0 106668  4712 ?        S    Nov25   0:00 /usr/sbin/httpd -f /omd/sites/prod/etc/apache/apache.conf
apache    4373  0.0  0.0 347848  7524 ?        S    Nov25   0:00 /usr/sbin/httpd -DFOREGROUND
apache   10479  0.0  0.0 347956  7748 ?        S    00:00   0:00 /usr/sbin/httpd -DFOREGROUND
apache   10480  0.0  0.0 347956  7748 ?        S    00:00   0:00 /usr/sbin/httpd -DFOREGROUND
apache   10481  0.0  0.0 347892  7924 ?        S    00:00   0:00 /usr/sbin/httpd -DFOREGROUND
apache   10482  0.0  0.0 347956  7748 ?        S    00:00   0:00 /usr/sbin/httpd -DFOREGROUND
apache   10483  0.3  0.3 106296 31264 ?        S    00:00   0:00 /usr/bin/perl /usr/share/thruk/script/thruk_fastcgi.pl
root     10546  0.0  0.0 112624   928 pts/0    R+   00:02   0:00 grep --color=auto apache
[root@e2e-14-53 ~]# ps aux | grep thruk
root      4239  0.0  0.2  88080 21268 ?        S    Nov25   0:00 perl -x /usr/share/thruk/thruk_auth
apache    4248  0.0  0.4 117508 36368 ?        S    Nov25   0:00 /usr/bin/perl /usr/share/thruk/script/thruk_fastcgi.pl
apache   10483  0.3  0.3 106296 31264 ?        S    00:00   0:00 /usr/bin/perl /usr/share/thruk/script/thruk_fastcgi.pl
root     10551  0.0  0.0 112624   932 pts/0    S+   00:02   0:00 grep --color=auto thruk
[root@e2e-14-53 ~]# ps aux | grep nagios
nagios    3092  0.0  0.0 689244  3008 ?        Ssl  Nov25   0:03 /usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg
nagios    3094  0.0  0.0  10780  1016 ?        S    Nov25   0:00 /usr/local/nagios/bin/nagios --worker /usr/local/nagios/var/rw/nagios.qh
nagios    3095  0.0  0.0  10780  1012 ?        S    Nov25   0:00 /usr/local/nagios/bin/nagios --worker /usr/local/nagios/var/rw/nagios.qh
nagios    3096  0.0  0.0  10780  1012 ?        S    Nov25   0:00 /usr/local/nagios/bin/nagios --worker /usr/local/nagios/var/rw/nagios.qh
nagios    3097  0.0  0.0  10780  1012 ?        S    Nov25   0:00 /usr/local/nagios/bin/nagios --worker /usr/local/nagios/var/rw/nagios.qh
nagios    3098  0.0  0.0  24556  1304 ?        S    Nov25   0:01 /usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg
prod      4289  0.0  0.0 156076   832 ?        S    Nov25   0:01 /omd/sites/prod/bin/npcd -d -f /omd/sites/prod/etc/pnp4nagios/npcd.cfg
prod      4316  0.0  0.0 1041064 2832 ?        Ssl  Nov25   0:09 /omd/sites/prod/bin/nagios -ud /omd/sites/prod/tmp/nagios/nagios.cfg
root     10553  0.0  0.0 112624   932 pts/0    R+   00:02   0:00 grep --color=auto nagios
[root@e2e-14-53 ~]#

#strace -p pidofthruk_fastcgi.pl perl process output  -> http://sprunge.us/iPIU 

Please let me know if you need any additional information

Regards,

Kaushal


2016-11-25 19:19 GMT+01:00 Kaushal Shriyan <kaushalshriyan@xxxxxxxxx>:
Hi,

I am running thruk (version is thruk-2.12-1.x86_64) which is a web interface for nagios 4.2.3 and running httpd-2.4.6-40.el7.centos.4.x86_64 on CentOS Linux release 7.2.1511 (Core)


I am seeing this issue in thruk.log prod: ERROR: failed to open socket /var/tmp/live.sock: No such file or directory

#ls -l /var/tmp/live.sock 
srw-rw---- 1 nagios nagios 0 Nov 25 18:12 /var/tmp/live.sock

I can share the /etc/httpd/conf.d/thruk.conf

Any help will be highly appreciable.

Regards,

Kaushal



--
Daniel Ferradal
IT Specialist

email         dferradal at gmail.com




--
Daniel Ferradal
IT Specialist

email         dferradal at gmail.com

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