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Scratch Pad

Scratch Pad

Lightroom Classic hangs during import

For a few weeks, I have experienced an interesting issue in Adobe Lightroom – during import application will become unresponsive and no files would be processed. Please note that photos are stored on NAS and there is some heavy traffic involved while images are being manipulated and rearranged. Much research Read more…

By Serguei Dosyukov, 9 monthsMay 2, 2022 ago
Scratch Pad Technology

Making your network connected HP ENVY Photo 7855 print again

HP printers seems to always being stop-and-go solution. Anything from upgrading to new version of Windows, switching local to network or Wi-Fi can throw them off. Over years I had number of HP and Canon printers and latest device is HP ENVY Photo 7855. It started all great – new Read more…

By Serguei Dosyukov, 2 yearsFeb 19, 2021 ago
CentOS Maintenance Scratch Pad

SearchWP and XPDF support

Introduction SearchWP is a nice WordPress plugin which allows to extend WordPress search capabilities to various content format beyond just page text. Here I am focusing on PDF indexing specifically. If you have any PDF files published and want them be indexed SearchWP-XPDF extension can be deployed. Issue Problem is Read more…

By Serguei Dosyukov, 5 yearsApr 5, 2018 ago
CentOS Maintenance Scratch Pad

Keeping CentOS with times – PHP 5.5

This is second article related to CentOS somewhat outdated default setup. I have previously discussed Steps to update MySQL to 5.5 and now its time to look at PHP Introduction If you run VPS or dedicated server with CentOS 6.x installed often you will find that default setup would include Read more…

By Serguei Dosyukov, 8 yearsJan 20, 2015 ago
CentOS Maintenance Scratch Pad

Symfony/PHP and “Too many open files”

Symfony seems to be somewhat resource hungry under some conditions and would leave trail of PHP errors indicating that there is “Too many open files”. There are several discussions on the topic suggesting that garbage collection mechanism does not close open files in some cases (ex: ConsoleOutput code). While it Read more…

By Serguei Dosyukov, 8 yearsDec 1, 2014 ago
CentOS Maintenance Scratch Pad

How to upgrade mySQL on CentOS

By default CentOS 6.5 would be installed with MySQL 5.1 (it puzzles my as 5.1 is archaic, but well…). I was interested in updating my MySQL engine to 5.5 and just happen that when it become a necessity. So after browsing various sites, forums and trying different repos, everything boiled Read more…

By Serguei Dosyukov, 9 yearsJul 8, 2014 ago
iOS development Scratch Pad

iOS AdHoc distribution failing? Look no further, you installed iOS 7.1 update

It was fun Monday, for some crazy reasons AdHoc distribution for iOS devices stopped working with nice little error Cannot install applications because the certificate for …. is not valid. Before you go all nuts and start blaming your recent beautiful change you just made, first stop for a second Read more…

By Serguei Dosyukov, 9 yearsMar 11, 2014 ago

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About
From a junior developer through Sr Manager position, I was always interested in new technologies. Passionate speaker, IT junky, developer, architect, team lead, and development manager - many hats, one goal - making software better and being closer to people’s needs. For the most part I am using my blog as a scratch pad, writing small articles on things which I came across, was asked about more then once, and which would otherwise require additional research again and again.

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