oshanz

oshanz

<?php 
function currency_convert($from,$to,$amount) {
   $string = "1".$from."=?".$to;
   $google_url = "http://www.google.com/ig/calculator?hl=en&q=".$string;
   $result = file_get_contents($google_url);
   $result = explode('"', $result);
   $converted_amount = explode(' ', $result[3]);
   $conversion = $converted_amount[0];
   $conversion = $conversion * $amount;
   $conversion = round($conversion, 2);

oshanz

git log --format=format: --name-only | egrep -v '^$' | sort | uniq -c | sort -rg | head -10

oshanz

for ruby 2.2.10

dnf install compat-openssl10-devel --allowerasing

for ruby 2.6.6

$ openssl version

remove compat-openssl10*

dnf install openssl-devel

oshanz

https://stackoverflow.com/questions/62256277/geojson-to-elasticsearch-unable-to-tessellate-shape
https://stackoverflow.com/questions/55587629/failed-to-create-valid-geo-shape/55588509#55588509

oshanz

• check if these values change after sound smartctl -A /dev/sda|grep -E 'Power_Cycle_Count|Load_Cycle_Count'

• acoustic level sudo hdparm -M /dev/sda /dev/sda: acoustic = 254 (128=quiet ... 254=fast)

• see current value sudo hdparm -B /dev/sda

oshanz

namespace :cachestore do
  desc "clear cache store"
  task :clear, roles: [:app] do
    with rails_env: fetch(:rails_env) do
      within current_path do
        execute :bundle, :exec, "rake cache:clearstore"
      end
    end
  end
end

oshanz

http://robots.thoughtbot.com/post/47202759358/using-gdb-to-inspect-a-running-ruby-process

That’s not a great thing to have to say, is it? However, I bet you’ve said it before and may not have immediately know why.

With liberal use of puts and maybe pry, you can figure out what a problem might be next time you run it, but sometimes you need to figure out what that problem is right now.

As it turns out, and I know this is a shocker, Ruby processes are just regular processes. They can be debugged with gdb.

Having recently had the need to find out why a job of mine was running particularly slowly, I found out about this lovely tool the hard way: frantic googling. I found some very useful functions for gdb in a blog post by Rasmus on Ruby callstacks.

oshanz

curl -GET "http://localhost:9200/_cluster/allocation/explain?pretty"

curl -XPOST 'localhost:9200/_cluster/reroute?retry_failed'

oshanz

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