Tutorial by Examples: ase

This simple example will remove the service with name "visualizer": docker service rm visualizer

This example will scale the service to 4 instances: docker service scale visualizer=4 In Docker Swarm Mode we do not stop a service. We scale it down to zero: docker service scale visualizer=0

The size of any object or member subobject is required to be at least 1 even if the type is an empty class type (that is, a class or struct that has no non-static data members), in order to be able to guarantee that the addresses of distinct objects of the same type are always distinct. However, ba...

Service that is used for communication: import { Injectable } from '@angular/core'; import { Subject } from 'rxjs/Subject'; @Injectable() export class ComponentCommunicationService { private componentChangeSource = new Subject(); private newDateCreationSource = new Subject<Date&...

Steps to copy heroku database to local database: 1. Run copy process in terminal: heroku pg:pull DATABASE_URL change_to_your_data_base_name --app change_to_your_app_name 2. Change db owner using this query: GRANT ALL PRIVILEGES ON DATABASE change_to_your_data_base_name to change_to_your_user; A...

Step1 Message Flow: [![enter image description here][1]][1] Step 2: Databse Connector Configuration For this you need mysql-connector-java-5.1.40-bin.jar . Right click on Project -->build Path--> Add external archieve and add the jar(without jar it cannot be connected) Enter all the value...

To fetch large data we can use generators in pandas and load data in chunks. import pandas as pd from sqlalchemy import create_engine from sqlalchemy.engine.url import URL # sqlalchemy engine engine = create_engine(URL( drivername="mysql" username="user", ...

When you have an ajax call, it's extremely difficult to get a log from inside of the callback function. But if you enable the debugging define('WP_DEBUG', true); and then after that add ini_set('log_errors',TRUE); ini_set('error_reporting', E_ALL); ini_set('error_log', dirname(__FILE__) . '/e...

By setting Multi-Release: true in the MANIFEST.MF file, the Jar file becomes a multi-release Jar and the Java runtime (as long as it supports the MRJAR format) will pick the appropriate versions of classes depending on the current major version. The structure of such a Jar is the following: jar ro...

The jar command can be used to create a multi-release Jar containing two versions of the same class compiled for both Java 8 and Java 9, albeit with a warning telling that the classes are identical: C:\Users\manouti>jar --create --file MR.jar -C sampleproject-base demo --release 9 -C sampleproje...

Given the following multi-release Jar: jar root - demo - SampleClass.class - META-INF - versions - 9 - demo - SampleClass.class The following class prints the URL of the SampleClass: package demo; import java.net.URL; public class Main...

Use Nginx map to parse fields and reject requests. # Allowed hosts map $http_host $name { hostnames; default no; example.com yes; *.example.com yes; example.org yes; *.example.org yes; .example.net yes; wap.* yes; } # Allowed count...

Fetching the values from the SQLite3 database. Print row values returned by select query import sqlite3 conn = sqlite3.connect('example.db') c = conn.cursor() c.execute("SELECT * from table_name where id=cust_id") for row in c: print row # will be a list To fetch single match...

Dim number As Integer = 8 Select Case number Case 1 To 5 Debug.WriteLine("Between 1 and 5, inclusive") ' The following is the only Case clause that evaluates to True. Case 6, 7, 8 Debug.WriteLine("Between 6 and 8, inclu...

Add any JSR 303 implementation to your classpath. Popular one used is Hibernate validator from Hibernate. <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-validator</artifactId> <version>4.2.0.Final</version> </dependen...

Many biological questions can be translated into a DNA sequencing problem. For instance, if you want to know the expression level of a gene you can: copy its mRNAs into complementary DNA molecules, sequence each of the resulting DNA molecules, map those sequences back to the reference genome, and th...

If running on a remote server that is using Passenger change apache.conf to to the environment you want to use. For example this case you see RailsEnv production. <VirtualHost *:80> ServerName application_name.rails.local DocumentRoot "/Users/rails/application_name/public" ...

CREATE INDEX first_name_idx ON user_data (UPPER(first_name)); SELECT * FROM user_data WHERE UPPER(first_name) = 'JOHN2'; Function based index means, creating index based on a function. If in search (where clause), frequently any function is used, it's better to create index based on ...

To list the available databases, use the following command: $ show databases name: databases name ---- _internal devices ... list of your databases You can connect to one specific database: $ use <database_name> By using a single database, the scope for each subsequent query wi...

It is possible to DELETE data from a table if it matches (or mismatches) certain data in other tables. Let's assume we want to DELETEdata from Source once its loaded into Target. DELETE FROM Source WHERE EXISTS ( SELECT 1 -- specific value in SELECT doesn't matter FROM Target ...