I find myself working on the move a lot more recently and I often have to deal with poor terminal emulators, iffy connectivity and sometimes I need resume my work on another machine entirely. As such I am trying out tmux as a way of persisting my working environment between sessions, supporting multiple tabs for when my emulator lacks it (Looking at you PuTTY, Git Bash) and lastly allowing me to resume my work on another desktop. ...

April 3, 2019 · 2 min · Joe Heaton

Log monitoring with Elasticsearch - Basic overview

Log monitoring implies using technology to avoid reading every single log message, with the benefit of catching more interesting events than if you were to read every single line! ...

October 8, 2018 · 5 min · Joe Heaton

Robinhood NoSQL - Mixing tables

In Robinhood NoSQL I experimented with porting the Robinhood database from Elasticsearch, it being a commonly-used NoSQL database with specialisation in behaving like a Search Engine. Having ingested the ENTRIES table I now need to augment the records with filepaths from ANNEX_INFO, as I found out previously: ...

September 4, 2018 · 3 min · Joe Heaton

Robinhood NoSQL

Robinhood provides indexing, search and management capabilities to computing centres with massive high-performnace filesystems, namely Lustre. It does this by scanning every file on the filesystem as efficiently as possible to initially populate its MySQL/MariaDB relational database, then it continuously listen for changelogs coming from Lustre to keep its state in-line with reality. ...

August 31, 2018 · 5 min · Joe Heaton

My terminal login message

Following on from bashrc , here is a snapshot and explaination of my .motd ...

July 27, 2018 · 5 min · Joe Heaton

My bash profile

Here’s a snapshot of my .bashrc, I put this together to normalise my environment; which is particularly useful when working across CentOS/RHEL 6/7, SLES11/12 & Debian/Ubuntu. I’ll overexplain some lines and underexplain others, depending on how interesting they are. ...

July 25, 2018 · 9 min · Joe Heaton

Patching Lustre 2.10 for Linux 4.14

The Lustre community supports recent point-releases of RHEL/CentOS but those patches don’t seem to come back into existing Lustre releases, since those releases don’t officially support later kernels. I installed client 2.10 thinking it had the best chance of working but encountered huge numbers of errors when compiling! ...

July 16, 2018 · 2 min · Joe Heaton

Enjoying GNOME3

Nearly every mildly experienced GNU-like OS user has had to content with the problem of which graphical environment to install, why?, because it’s how we use OS these days, with point and click. People are often perplexed by the choice even existing as the dominent OS of the day hardly allow you to modify your environment at all let-alone replace it all together with another groups systems.

August 4, 2013 · 9 min · Joe Heaton

Free Software Conundrums

Clients Pidgin or XChat (IRC) These days the users of XChat seem to be migrating to a maintained fork and perhaps MSWindows-centric project named HexChat, a project spawned after development on XChat slowed to a single developer and affectively ended in 2010. Either of these clients is better than the proprietary mIRC client which is free as in free beer and may be refered to as ‘Freeware’ by some, a term which should be no means be mistaken as standing for Freedom for the user....

June 29, 2013 · 3 min · Joe Heaton

Firefox-based browser add-on suggestions

HTTPS Everywhere [GPLv3+] Enforces the use of secure connections where known to be possible through the use of an updated white-list, this means where a website has the ability to deliver it’s bits to you over HTTPS(Secure HTTP) the add-on will tell it to. Browsing over a secure connection is intended to prevent third-parties, parties other than you and the server itself, from being capable of peaking into the connection and spying or tampering with the data....

June 1, 2013 · 2 min · Joe Heaton