Red Branch | For Future Reference …
So working on a system that had incorrect partitioning configured. In /etc/fstab the partitions were configured with: PARTLABEL=data1 /data1 ext4 defaults 0 0 PARTLABEL=data2 /data2 ext4 defaults 0 0 but the partitions did not have PARTLABELS set. The LABEL and PARTLABEL can be viewed with: lsblk -o name,label,partlabel,mountpoint,size,uuid To set the label property use: e2label… Read more »
I needed to access the Hue file browser service and for my version of cloudera this was: cd /opt/cloudera/parcels/CDH-5.7.6-1.cdh5.7.6.p0.6/lib/hue Run the createuser command: ./build/env/bin/hue createsuperuser Username (leave blank to use ‘joebloggs’): Email address: joebloggs@whatever.tld Password: Password (again): Superuser created successfully.
Download the latest version of the Arduino IDE as the version in the Ubuntu/Mint/Debian repositories is a little old: https://www.arduino.cc/en/Main/Software At the time of writing I am using version 1.8.5 Configure Arduino IDE First we need to import everything we need to operate the MKR Fox 1200 so first visit Tools > Board > Board… Read more »
Good concise article here on devopscube for installing zookeeper cluster. I’ve added some of my own bits: Firewall Disable firewalld or allow ports 2181 3888 2888 Install Java yum install java-1.8.0-openjdk Install Zookeeper Download ZooKeeper from the Apache: wget http://mirrors.ukfast.co.uk/sites/ftp.apache.org/zookeeper/zookeeper-3.4.10/zookeeper-3.4.10.tar.gz mv zookeeper-3.4.10.tar.gz /opt cd /opt tar xzf zookeeper-3.4.10.tar.gz ln -s zookeeper-3.4.10 ./zookeeper cd zookeeper mkdir… Read more »
I found that Yakuake was re-opening with an 80% width and about 30% height but I prefer 100% wide and 80% high. So it looks like my settings were saving into the file: ~/.config/yakuakerc But this was possibly not the file that was being read when Yakuake started. I added the [Window] Height=80 Width=100 entries… Read more »
So we had a CSV/TSV file with tabs separating each field but one of the fields was a description field that contained spaces. When parsing this TSV file some programs interpreted the spaces as field delimiters (TSV might be a bad idea!). Input file similar to: NULL NULL 7.0 Huayang Time Warner Cable 4430 The… Read more »
I installed the relevant Python packages first e.g. sudo apt-get install flake8 python3-flake8 python3-pep8 python-pep8-naming python3-setuptools pylint3 Then on the Atom menu use: Edit > Preferences then search for atom packages such as flake8, pep8, pep257 and pylint: Then click the install button. After restarting style advice is shown in the editor:
I was reminded about how much time I had spent as a kid playing Manic Miner on an Amstrad 464 and decided to give it a try on my current desktop (Linux Mint) so for future reference… I grabbed the code created by here: git clone https://github.com/lkundrak/manicminer.git Installed a few dependencies: apt-get install libx11-dev libxext-dev… Read more »
I had inadvertently set up slave replication using the wrong channel name – which is a minor issue except that it caused some issues with an already configured Nagios check. To ‘change’ the channel name I stopped the slave process, removed all the slave definitions and used ‘CHANGE MASTER’ to re-create the slave from the… Read more »
Using CentOS 7 this problem arose after a reboot and NFS shares would not mount. Trying to start the rpcbind service: systemctl start rpcbind gave the following error message via jounralctl -xe : rpcbind.socket failed to listen on sockets: Address family not supported by protocol So it looks like net.ipv6.conf.all.disable_ipv6 = 1 was set in… Read more »
