| global: | |
| scrape_interval: 60s | |
| external_labels: | |
| monitor: 'example' | |
| rule_files: | |
| - /etc/prometheus/config/*.rules | |
| scrape_configs: |
| # run these commands on a Centos 7 server as root | |
| yum install -y pcp pcp-webapi pcp-system-tools | |
| chkconfig pmcd on | |
| service pmcd start | |
| chkconfig pmlogger on | |
| service pmlogger start | |
| chkconfig pmwebd on | |
| service pmwebd start | |
| # open port 44323 in the firewall | |
| # To start vector on your laptop |
| // For all the confusing Prometheus configuration and | |
| // regular expressions, | |
| // explained in examples. | |
| // Remember, there are default values for each item if it's missing. | |
| // regex is (.*), | |
| // replacement is $1, | |
| // separator is ; | |
| // ,and action is replace |
A running example of the code from:
This gist creates a working example from blog post, and a alternate example using simple worker pool.
TLDR: if you want simple and controlled concurrency use a worker pool.
| // XPath CheatSheet | |
| // To test XPath in your Chrome Debugger: $x('/html/body') | |
| // http://www.jittuu.com/2012/2/14/Testing-XPath-In-Chrome/ | |
| // 0. XPath Examples. | |
| // More: http://xpath.alephzarro.com/content/cheatsheet.html | |
| '//hr[@class="edge" and position()=1]' // every first hr of 'edge' class |
| tc qdisc add dev eth0 root handle 1: prio | |
| tc qdisc add dev eth0 parent 1:3 handle 30: netem delay 5s | |
| tc filter add dev eth0 protocol ip parent 1:0 u32 match ip sport 34001 0xffff flowid 1:3 |