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11%
Linux device mapper writecache
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image © lightwise, 123R.com
: 1 (f=1): [w(1)][100.0%][r=0KiB/s,w=1401KiB/s][r=0,w=350 IOPS][eta 00m:00s] test: (groupid=0, jobs=1): err= 0: pid=3104: Sat Oct 12 14:39:08 2019 write: IOPS=352, BW=1410KiB/s (1444kB/s)(82.8Mi
11%
Finally: Java 9
13.02.2017
Home »  Archive  »  2017  »  Issue 37: Distr...  » 
Lead Image © Krockenmitte, photocase.com
to the needs of an application. After all, the standard libraries in Java 8 weigh in at around 60MB and 20,000 classes. They not only need space on the hard drive, but the computer also needs to load them
11%
Analyzing tricky database problems
14.03.2018
Home »  Archive  »  2018  »  Issue 44: Cloud...  » 
Photo by Quino Al on Unsplash
that can be reset. However, with MariaDB 10.0.12, the performance tables are deactivated by default. To activate them, the database admin adds the line performance_schema=on to the my.cnf file. Detailed
11%
Automation Scripting with PHP
16.10.2012
Home »  Articles  » 
 
($ssh, '/sbin/ifconfig'); 07 stream_set_blocking($stream, true); 08 09 $response = ''; 10 while($buffer = fread($stream, 4096)) { 11 $response .= $buffer; 12 } 13 14 fclose($stream); 15 echo $response; 16 17
11%
Using the MQTT IoT protocol for unusual but useful purposes
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
Lead Image © Heiko Küverling, 123RF.com
(msg.payload)) 07 08 mqtt = paho.Client() 09 mqtt.on_message = on_message 10 11 mqtt.connect("localhost", 1883, 60) 12 mqtt.subscribe("linux/+", 0) 13 14 mqtt.loop_forever() The client now connects
11%
Setting up SELinux policies
12.09.2013
Home »  Archive  »  2013  »  Issue 16: Docker  » 
Lead Image © Agustin Paz, 123RF.com
see that the base module is by far the largest, weighing in at more than 200KB. When a module is loaded, it is copied to /etc/selinux/targeted/modules/active/modules/. When the system is rebooted
11%
Retrieving Windows performance data in PowerShell
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © andresr, fotolia.com
to see whether the available memory drops below 500MB. The script then runs through the freely extensible performance counters by server and checks the results. If a threshold is over- or undershot
11%
Lua for Apache
10.07.2012
Home »  Articles  » 
 
, for example: http://localhost/hello.lua If you have a typo, Apache returns an internal server error (number 500). You only get to see a Lua interpreter error message under special circumstances (Figure 1
11%
Serverless computing with AWS Lambda
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image © joingate, 123RF.com
": "Allow", 06 "Action": "logs:CreateLogGroup", 07 "Resource": "arn:aws:logs:eu-west-1:XXXXXXX:*" 08 }, 09 { 10 "Effect": "Allow", 11 "Action": [ 12 "logs
11%
Getting started with the Apache Cassandra database
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Photo by Almos Bechtold on Unsplash
publisher TEXT, 07 authors MAP, 08 circulation INT, 09 issue TEXT, 10 PRIMARY KEY(publisher, issue, isbn) 11 ); 12 13 # INSERT INTO titles(isbn, year, title, publisher, authors, circulation

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