Arm2Arm
Montag, 30. Juli 2018
Consumer/Producer jobqueue with the gnu parallel
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The hosts.txt file must have atleast one line: tail /data/p.txt -f | parallel -k --slf hostnames.txt the /data/p.txt and hostnames.txt ...
Dienstag, 26. Juni 2018
Replacing failed disk in the software raid1
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The disk /dev/sda is failing: cat /proc/mdstat Remove it from the raid: cat /proc/mdstat mdadm --manage /dev/md127 --fail /dev/sda1 mdadm...
Montag, 25. Juni 2018
Ovirt 4.2 clean up the image upload hanging process
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After the upgrade, some of the hosts are not going to the maintenance mode. In our case, it was a hanging process of image upload. T...
Ovirt upgrade from 4.1 to 4.2
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yum clean all yum install http://resources.ovirt.org/pub/yum-repo/ovirt-release42.rpm yum-config-manager --save --setopt=ovirt-4.1-centos-...
Donnerstag, 29. März 2018
centos 7 firewall d routing IB to eth network with multihomed server
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Add the following to /etc/sysctl.conf: net.ipv4.ip_forward = 1 Apply the sysctl settings: sysctl -p Add direct rules to firewalld. Add the ...
Mittwoch, 21. Februar 2018
Raspberry pi 3 camera quality vs Moto G5
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raspistill --sharpness 100 -q 5 -t 1 -mm average -ifx denoise -sa 20 -ISO 200 --vstab -awb fluorescent -w 1920 -h 1080 -o /var/...
Mittwoch, 14. Februar 2018
Enable on Visual Studio 2017 BUILD and RUN option
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