Using the Hadoop command we can send fairly regular filesystem commands to navigate HDFS. On Cloudera I am sending commands to port 8020 of the active name node. If you don't have the hadoop command available on your system you need to download hadoop,... » More
So working on a system that had incorrect partitioning configured. In /etc/fstab the partitions were configured with: but the partitions did not have PARTLABELS set. The LABEL and PARTLABEL can be viewed with: To set the label property use: To... » 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... » More
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... » 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 User Create a zookeeper user Install Zookeeper Download ZooKeeper... » 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: But this was possibly not the file that was being read when Yakuake started. I... » 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... » More
I installed the relevant Python packages first e.g. 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... » More
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: Installed a few... » 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... » More
Using the Hadoop command we can send fairly regular filesystem commands to navigate HDFS. On Cloudera I am sending commands to port 8020 of the active name node. If you don't have the hadoop command available on your system you need to download hadoop,... » More
