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High-performance Python – compiled code and C interface

01.08.2019

Home » Archive » 2019 » Issue 52: Stop... »

functions (ufuncs) [5] and C callbacks. The compiler is under continual development, with the addition of more capability, more performance, and more NumPy functions. A ufunc operates on an ndarray [6

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Installing and operating the Graylog SIEM solution

13.12.2018

Home » Archive » 2018 » Issue 48: Secur... »

SeverityValue = 3; else $SyslogSeverityValue = 6; 20 21 # The name of the file is also sent with the file 22 Exec $FileName = file_name(); 23 24 # The SourceName variable is set by default to 'NXLOG'. To send

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How graph databases work

04.08.2020

Home » Archive » 2020 » Issue 58: Graph... »

],e[11][1-with_goat->2],v[2],e[12][2-empty_return->3],v[3],e[18][3-with_cabbage->9],v[9],e[19][9-with_goat->10],v[10],e[20][10-with_wolf->6],v[6],e[16][6-empty_return->7],v[7],e[17][7-with_goat->8],v[8

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Kolab iRony with CalDAV and CardDAV support

11.06.2014

Home » Archive » 2014 » Issue 21: Manag... »

installation of Kolab 3.0 and later is a matter of one or two cups of coffee and does not impose too many requirements on the admin. The Kolab developers recommend a recent CentOS (preferably 6.4) as the basis

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Time-series-based monitoring with Prometheus

14.08.2017

Home » Archive » 2017 » Issue 40: Lean... »

Lead Image © Juthamas Oonhawat, 123RF.com

it as an open source project with an official announcement [5], although it previously also existed as open source on GitHub [6]. Today, programmers interested in doing so can develop Prometheus under

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HPC fundamentals

16.08.2018

Home » Archive » 2018 » Issue 46: CMS S... »

correctly. This simple test gets the kernel version of a different node using the IP address of the other node. $ pdsh -w 192.168.1.250 uname -r 192.168.1.250: 2.6.32-431.11.2.el6.x86_64 The -w option means

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PostgreSQL 9.3

04.02.2014

Home » Articles »

Recheck: 978 11 -> Bitmap Index Scan on mail_msg_idx (cost=0.00..128.03 rows=4 width=0) 12 (actual time=34.925..34.925 rows=1650 loops=1) 13 Index Cond: (msg ~ '(updatable|views)'::text) 14

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New in PostgreSQL 9.3

09.01.2013

Home » Archive » 2013 » Issue 18: New W... »

-> Bitmap Index Scan on mail_msg_idx (cost=0.00..128.03 rows=4 width=0) 12 (actual time=34.925..34.925 rows=1650 loops=1) 13 Index Cond: (msg ~ '(updatable|views)'::text) 14 Total runtime: 175

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Haskell framework for the web

22.12.2017

Home » Archive » 2017 » Issue 42: Secur... »

09 mysettings' <- newSettings maxFiles 10 -- make "myMax" version available globally 11 let mkFoundation appConnPool = App mysettings' 12 [...] Listing 6

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Automated OpenStack instance configuration with cloud-init and metadata service

05.02.2019

Home » Archive » 2019 » Issue 49: Anato... »

: $ curl http://169.254.169.254/openstack 2012-08-10 2013-04-04 2013-10-17 2015-10-15 2016-06-30 2016-10-06 2017-02-22 To retrieve a list of supported versions for the EC2-compatible metadata API, enter

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