vltsu

postgresql:
  image: postgres-image
  mem_limit: 4001000000
  ports:
    - "5432:5432"
  volumes:
    - /opt/docker/data/postgresql/9.4/main:/var/lib/postgresql/data
zookeeper:
  image: wurstmeister/zookeeper
  mem_limit: 256000000

vltsu

A string S consisting of N characters is called properly nested if:

S is empty;
S has the form "(U)" where U is a properly nested string;
S has the form "VW" where V and W are properly nested strings.
For example, string "(()(())())" is properly nested but string "())" isn't.

Write a function:

    class Solution {

vltsu

// create an index with an analyzer "myindex"
curl -X PUT localhost:9200/myindex -d '
{
  "settings" : {`
    "index":{
      "number_of_replicas":0,
      "number_of_shards":1,
      "analysis":{
        "analyzer":{
          "first":{

vltsu

vltsu@vltsu-pc:~/Desktop$ hadoop jar /usr/lib/hadoop-mapreduce/hadoop-mapreduce-examples.jar grep input output23 'dfs[a-z.]+'
15/03/21 19:46:30 INFO client.RMProxy: Connecting to ResourceManager at /0.0.0.0:8032
15/03/21 19:46:30 WARN mapreduce.JobSubmitter: No job jar file set.  User classes may not be found. See Job or Job#setJar(String).
15/03/21 19:46:30 INFO input.FileInputFormat: Total input paths to process : 4
15/03/21 19:46:30 INFO mapreduce.JobSubmitter: number of splits:4
15/03/21 19:46:30 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_1426946641895_0004
15/03/21 19:46:30 INFO mapred.YARNRunner: Job jar is not present. Not adding any jar to the list of resources.
15/03/21 19:46:30 INFO impl.YarnClientImpl: Submitted application application_1426946641895_0004
15/03/21 19:46:30 INFO mapreduce.Job: The url to track the job: http://vltsu-pc:8088/proxy/application_1426946641895_0004/
15/03/21 19:46:30 INFO mapreduce.Job: Running job: job_1426946641895_0004

vltsu

sudo tcpdump -i lo0 -A -s 0 'tcp port 8081 and (((ip[2:2] - ((ip[0]&0xf)<<2)) - ((tcp[12]&0xf0)>>2)) != 0)' // show http request and headers for localhost on port 8081

vltsu

@Entity
public class Employee {
 @Id long empId;
 String empName;
 ...
}

public class DependentId {
 String name; // matches name of @Id attribute
 long emp; // matches name of @Id attribute and type of Employee PK

vltsu

// determine field type
if f.getType().isAssignableFrom(String.class)
if f.getType().equals(boolean.class)
if f.getType().isAssignableFrom(Date.class)

// if object is string
if (myObject instanceof String) { ... }

vltsu

# Capistrano configuration
# 
# require 'new_relic/recipes'         - Newrelic notification about deployment
# require 'capistrano/ext/multistage' - We use 2 deployment environment: staging and production.
# set :deploy_via, :remote_cache      - fetch only latest changes during deployment
# set :normalize_asset_timestamps     - no need to touch (date modification) every assets
# "deploy:web:disable"                - traditional maintenance page (during DB migrations deployment)
# task :restart                       - Unicorn with preload_app should be reloaded by USR2+QUIT signals, not HUP

vltsu

class SetDefaultCanonicalUrlsForCollects < ActiveRecord::Migration
  def change
    Account.find_in_batches(:batch_size => 300) do |accounts|
      execute "commit;"
      accounts.each do |account|
        execute "
          UPDATE collects
          SET is_canonical_url = true
          WHERE id in (
            SELECT DISTINCT ON (product_id) id FROM collects WHERE product_id IN (

vltsu

require 'csv'

namespace :users do 
  desc "Import users from csv" 
  task :import => :environment do
    path = ENV.fetch("CSV_FILE") {
      File.join(File.dirname(__FILE__), *%w[.. .. db data users.csv])
    }
    CSV.foreach(path, headers: true, header_converters: :symbol) do |row|
      User.create(row.to_hash)