Nagios Support Forum • gearman error

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gearman error

Posted: Tue Mar 03, 2020 4:04 pm

by progressive.nagiosXI

hi team,

we update nagios core and mod gearman today

we are getting below error log /var/log/gearmand/gearmand.log and disk is going full again and again ,Please help on priority
ERROR 2020-02-03 20:54:45.000000 [ main ] accept(Too many open files) -> libgearman-server/gearmand.cc:691
ERROR 2020-02-03 20:54:45.000000 [ main ] accept(Too many open files) -> libgearman-server/gearmand.cc:691
ERROR 2020-02-03 20:54:45.000000 [ main ] accept(Too many open files) -> libgearman-server/gearmand.cc:691
ERROR 2020-02-03 20:54:45.000000 [ main ] accept(Too many open files) -> libgearman-server/gearmand.cc:691
ERROR 2020-02-03 20:54:45.000000 [ main ] accept(Too many open files) -> libgearman-server/gearmand.cc:691
ERROR 2020-02-03 20:54:45.000000 [ main ] accept(Too many open files) -> libgearman-server/gearmand.cc:691
ERROR 2020-02-03 20:54:45.000000 [ main ] accept(Too many open files) -> libgearman-server/gearmand.cc:691
ERROR 2020-02-03 20:54:45.000000 [ main ] accept(Too many open files) -> libgearman-server/gearmand.cc:691
ERROR 2020-02-03 20:54:45.000000 [ main ] accept(Too many open files) -> libgearman-server/gearmand.cc:691
ERROR 2020-02-03 20:54:45.000000 [ main ] accept(Too many open files) -> libgearman-server/gearmand.cc:691
ERROR 2020-02-03 20:54:45.000000 [ main ] accept(Too many open files) -> libgearman-server/gearmand.cc:691
ERROR 2020-02-03 20:54:45.000000 [ main ] accept(Too many open files) -> libgearman-server/gearmand.cc:691
ERROR 2020-02-03 20:54:45.000000 [ main ] accept(Too many open files) -> libgearman-server/gearmand.cc:691
ERROR 2020-02-03 20:54:45.000000 [ main ] accept(Too many open files) -> libgearman-server/gearmand.cc:691

[root@monitoring-nagiosxi gearmand]# rpm -qa |grep -i gearman
mod_gearman-3.0.7-1.el7.x86_64
gearmand-0.33-7.x86_64
mod_gearman-debuginfo-3.0.7-1.el7.x86_64
gearmand-devel-0.33-7.x86_64
gearmand-server-0.33-7.x86_64

[root@monitoring-nagiosxi gearmand]# /usr/local/nagios/bin/nagios –help

Nagios Core 4.4.5
Copyright (c) 2009-present Nagios Core Development Team and Community Contributors
Copyright (c) 1999-2009 Ethan Galstad
Last Modified: 2019-08-20
License: GPL

Thanks

Re: gearman error

Posted: Tue Mar 03, 2020 8:33 pm

by Box293

What procedure did you use to upgrade?

Re: gearman error

Posted: Wed Mar 04, 2020 10:07 am

by tgriep

Find the systemctl file that loads the gearman daemon.

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find / -name gearmand.service

Typically it could be in this folder.

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/etc/systemd/system/multi-user.target.wants/gearmand.service

Add this line in the file

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LimitNOFILE=50000

After the following section

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[Service]

Save the file and run this as root

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systemctl daemon-reload

then run this

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systemctl restart gearmand

Look at the gearmand.log file to see if the error is gone.

You may also have to increase the linux kernel open file limit.
Edit this file

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/etc/security/limits.conf

Add this to the bottom

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* hard nofile 1000000
* soft nofile 1000000

Reboot the server.

Which file or folder has the data that is filling up the drive?

Re: gearman error

Posted: Wed Mar 04, 2020 12:54 pm

by progressive.nagiosXI

Hi ,

Thanks tgriep ,
after given changes and observe for 60 min we are not getting below error in /var/log/gearmand/gearmand.log which filled disk 2GB/min.

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ERROR 2020-02-03 20:54:45.000000 [ main ] accept(Too many open files) -> libgearman-server/gearmand.cc:691

but now we are getting below error in /var/log/gearmand/gearmand.log

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[root@monitoring-nagiosxi gearmand]# tail -f  gearmand.log
  ERROR 2020-02-04 17:30:52.000000 [     3 ] lost connection to client recv(EPIPE || ECONNRESET || EHOSTDOWN)(Connection reset by peer) -> libgearman-server/io.cc:100
  ERROR 2020-02-04 17:30:52.000000 [     3 ] closing connection due to previous errno error -> libgearman-server/io.cc:109
  ERROR 2020-02-04 17:30:52.000000 [     2 ] lost connection to client recv(EPIPE || ECONNRESET || EHOSTDOWN)(Connection reset by peer) -> libgearman-server/io.cc:100
  ERROR 2020-02-04 17:30:52.000000 [     2 ] closing connection due to previous errno error -> libgearman-server/io.cc:109
  ERROR 2020-02-04 17:31:16.000000 [     2 ] lost connection to client recv(EPIPE || ECONNRESET || EHOSTDOWN)(Connection reset by peer) -> libgearman-server/io.cc:100
  ERROR 2020-02-04 17:31:16.000000 [     2 ] closing connection due to previous errno error -> libgearman-server/io.cc:109
  ERROR 2020-02-04 17:31:16.000000 [     2 ] lost connection to client recv(EPIPE || ECONNRESET || EHOSTDOWN)(Connection reset by peer) -> libgearman-server/io.cc:100
  ERROR 2020-02-04 17:31:16.000000 [     2 ] closing connection due to previous errno error -> libgearman-server/io.cc:109
  ERROR 2020-02-04 17:31:16.000000 [     2 ] lost connection to client recv(EPIPE || ECONNRESET || EHOSTDOWN)(Connection reset by peer) -> libgearman-server/io.cc:100
  ERROR 2020-02-04 17:31:16.000000 [     2 ] closing connection due to previous errno error -> libgearman-server/io.cc:109

Re: gearman error

Posted: Wed Mar 04, 2020 5:39 pm

by tgriep

Those errors may be coming from a worker that cannot connect to the gearman server so run the gearman_top command and verify that all of the workers are in there, if any missing workers, look there.

Or it is a module.conf setting on the gearman server or a setting in one of the worker.conf files on a worker.
I would have to see them to check the settings and well as the output of this command ran on the Nagios sever.

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gearman_top -b

Re: gearman error

Posted: Thu Mar 05, 2020 12:45 pm

by progressive.nagiosXI

Hi,

All details attached and shared in PM ==> tgriep
1) gearman server -module.conf
2)gearman_top -b
3)hostgroup where Jobs Waiting is highest - worker.conf attached

Thanks

Re: gearman error

Posted: Thu Mar 05, 2020 3:18 pm

by tgriep

Edit the worker.conf file and increase this option

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min-worker=50

to

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min-worker=250

Restart the Mod Gearman worker on that server.
Run the gearman_top command and see if it starts to process more checks.

If not, edit the worker file and enable debugging.

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debug=2

Then check this log for errors.

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/var/log/mod_gearman2/mod_gearman_worker.log