On Windows you can install Scollector as a service using the -winsvc="install" flag. On Mac and Linux you must manually create a service or init script. For example here is a basic systemd unit file:
#Scollector unit file saved to /etc/systemd/system/scollector.service
[Unit]
Descriptio...
The following can be saved as main.go. After you update the EDITME settings and build the executable it can be used as a continuous external collector.
package main
import (
"fmt"
"log"
"net/url"
"strconv"
"time"
&...
This is a continuous collector that uses the hadoop fs -du -s /hbase/* command to get details about the HDFS disk usage. This metric is very useful for tracking space in an OpenTSDB system.
#!/bin/bash
while true; do
while read -r bytes raw_bytes path; do
echo "hdfs.du $(date +&...
Scollector will monitor any Windows processes or services specified in the configuration file.
[[Process]]
Name = "^scollector"
[[Process]]
Name = "^chrome"
[[Process]]
Name = "^(MSSQLSERVER|SQLSERVERAGENT)$"
You can neatly group your options within a selection menu in order to provide a more structured layout in a long list of options by using the <optgroup> element.
The syntax is very basic, by simply using the element with a label attribute to identify the title for the group, and containing ze...
The following Go file can be compiled into a continuous external collector that will query a MSSQL server database that uses the StackExchange.Exceptional schema. It will query multiple servers/databases for all exceptions since UTC 00:00 to convert the raw entries into a counter. It also uses the b...
Scollector can also monitor any Windows processes using the .NET framework. If no ProcessDotNet settings are specified it will default to just monitoring the w3wp worker processes for IIS. You can specify which applications to monitor in the configuration file.
[[ProcessDotNet]]
Name = "^w3...
The following demo features an <output> element's use of the [for] and [form] attributes. Keep in mind, <output> needs JavaScript in order to function. Inline JavaScript is commonly used in forms as this example demonstrates. Although the <input> elements are type="number"...
NSLog(@"Log Message!");
NSLog(@"NSString value: %@", stringValue);
NSLog(@"Integer value: %d", intValue);
The first argument of NSLog is an NSString containing the log message format. The rest of the parameters are used as values to substitute in place of the forma...
NSLog(@"NSLog message");
printf("printf message\n");
Output:
2016-07-16 08:58:04.681 test[46259:1244773] NSLog message
printf message
NSLog outputs the date, time, process name, process ID, and thread ID in addition to the log message. printf just outputs the message.
N...
NSLog(@"NSLog message");
The message that gets printed by calling NSLog has the following format when viewed in Console.app:
DateTimeProgram nameProcess IDThread IDMessage2016-07-1608:58:04.681test[46259:1244773]NSLog message
In classes, super.foo() will look in superclasses only. If you want to call a default implementation from a superinterface, you need to qualify super with the interface name: Fooable.super.foo().
public interface Fooable {
default int foo() {return 3;}
}
public class A extends Object impl...
In case you have reverted back to a past commit and lost a newer commit you can recover the lost commit by running
git reflog
Then find your lost commit, and reset back to it by doing
git reset HEAD --hard <sha1-of-commit>
CardView is a member of the Android Support Library, and provides a layout for cards.
To add CardView to your project, add the following line to your build.gradle dependencies.
compile 'com.android.support:cardview-v7:25.1.1'
A number of the latest version may be found here
In your layout you ...
var parts = new[] { "Foo", "Bar", "Fizz", "Buzz"};
var joined = string.Join(", ", parts);
//joined = "Foo, Bar, Fizz, Buzz"
SQL Server 2008
WITH XMLNAMESPACES (
DEFAULT 'http://www.w3.org/2000/svg',
'http://www.w3.org/1999/xlink' AS xlink
)
SELECT
'example.jpg' AS 'image/@xlink:href',
'50px' AS 'image/@width',
'50px' AS 'image/@height'
FOR XML PATH('svg')
<svg xmlns:xlink="http:...
SELECT
'XPath example' AS 'head/title',
'This example demonstrates ' AS 'body/p',
'https://www.w3.org/TR/xpath/' AS 'body/p/a/@href',
'XPath expressions' AS 'body/p/a'
FOR XML PATH('html')
<html>
<head>
<title>XPath example</title>
&...
var wsHost = "ws://my-sites-url.com/path/to/echo-web-socket-handler";
var ws = new WebSocket(wsHost);
var value = "an example message";
//onmessage : Event Listener - Triggered when we receive message form server
ws.onmessage = function(message) {
if (message === value...
