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MongoDB Performance Troubleshooting Guide

References

Official docs

For all of these docs, be sure to select your MongoDB version from the left dropdown!

• Analyzing MongoDB Performance
• MongoDB Limits & Thresholds

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pipeline_stages:
  - logfmt:
      mapping:
        timestamp: time
        level:
  - match:
...
  - match:
	    selector: '{job="exporters"}'
	    stages:

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pipeline_stages:
  - logfmt:
      mapping:
        timestamp: time
        level:
  - match:
...
  - match:
	    selector: '{job="exporters"}'
	    stages:

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# http block

    geoip_city  /usr/local/share/GeoIP/GeoIPCity.dat;
    geoip_country /usr/local/share/GeoIP/GeoIPCountry.dat;
    
# location block

        proxy_set_header GEOIP_COUNTRY_CODE $geoip_country_code;
        proxy_set_header GEOIP_COUNTRY_CODE3 $geoip_country_code3;
        proxy_set_header GEOIP_COUNTRY_NAME $geoip_country_name;

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Системный журнал
  
Функция автоматической отправки почты:	Отключена

Тип журнала:   	  Уровень журнала:   
Индекс	Время	Тип	Уровень	Содержание журнала
39	1st day 00:05:36	DHCP	ПРИМЕЧАНИЕ	Dynamic IP(DHCP Client) obtained an IP successfully
38	1st day 00:05:36	DHCP	ИНФО	Mark the ip 64549230 for option 50.
37	1st day 00:05:36	DHCP	ИНФО	DHCPC:GET ip:64549230 mask:ffff8000 gateway:64548001 dns1:5515c003 dns2:d5eac008 static route:0
36	1st day 00:05:36	DHCP	ИНФО	DHCPC Recv ACK from server 4e6b91f9 with ip 64549230 lease time 600

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fatal: [example.eu]: FAILED! => {
    "msg": "The task includes an option with an undefined variable. The error was: 'dict object' has no attribute 'stdout'\n\nThe error appears to have been in '/Users/default/Documents/repoitories/ansible/roles/mytask/tasks/main.yml': line 27, column 3, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n- local_action: copy content=\"{{ command_result.stdout }}\" dest=/tmp/test\n  ^ here\nWe could be wrong, but this one looks like it might be an issue with\nmissing quotes.  Always quote template expression brackets when they\nstart a value. For instance:\n\n    with_items:\n      - {{ foo }}\n\nShould be written as:\n\n    with_items:\n      - \"{{ foo }}\"\n\nexception type: <class 'ansible.errors.AnsibleUndefinedVariable'>\nexception: 'dict object' has no attribute 'stdout'"
}

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- name: "Manage SSH known_hosts file"
  command: "/usr/bin/ssh-keyscan -t ecdsa {{ item.ssh_config_vars.0.hostname }}"
  with_items: 
    - "{{ grafana_indirect_maps }}"
  register: command_result

- local_action: copy content="{{ command_result.stdout }}" dest=/tmp/test

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grafana_indirect_maps:
# example.com
  - name: "example.com" 
    ssh_config_vars: 
    - host: "example.com" 
      port: "22" 
      user: "user"
      hostname: "10.0.0.17"
      hostkeyalias: "example.com"
  - name: "example.net"       

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An Ansible summary

Jon Warbrick, July 2014, V3.2 (for Ansible 1.7)

Configuration file

intro_configuration.html

First one found from of

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#!/bin/bash -x

# based on: http://superuser.com/questions/386506/hosting-iscsi-on-smartos

GROUPNAME=iscsi-1
TARGETNAME=iqn.2010-08.org.illumos:02:$GROUPNAME
LOCAL_ADDRESS=192.168.1.2

svcadm enable stmf
svcadm enable -r svc:/network/iscsi/target:default