August 07 2016, 21:05

Today we went tubing down the mountain river, Shenandoah. Tubings are inflatable donuts. I chose the “Tracker,” which is a single-person inflatable boat. Unlike tubing, it has shark-proof protection: a bottom and a paddle that can also be used for rowing. Most of the journey went through small rapids, where it shook quite a bit and splashed around.

All this is located near Harpers Ferry, a historic town in West Virginia. In two of them on white water, i.e., the mountain river, Masha wasn’t allowed: either the height wasn’t right or the weight. Eventually, this weekend I played it smart: bought from a third company, where we hadn’t been yet, online, with a prepayment, carefully following all the stipulations regarding weight and age. In the end, we got in, but our friends, who arrived later without reservations, did not, for the same reason.

I must say, the restrictions are there for a reason: it was challenging.

August 02 2016, 17:48

I’ve noticed that the advertising on Facebook in the states is almost always interesting. Clearly, they have a lot to choose from here. I end up clicking a lot, especially from my phone. They keep showing many interesting items from Kickstarter.

I also noticed that on YouTube, I often come across ads that I don’t feel like skipping.

For example, I just stumbled upon

https://vimeo.com/127198140

How different the Russian and global markets are, in this regard.

August 02 2016, 12:37

Update on my blog. This time I didn’t wait until Thursday because the results were ready in just one day.

My latest post has a complex title – something like session storage in Redis, but to put it simply, this thing is needed so that if any server of your online store goes down, a customer would not notice: their cart wouldn’t empty, authentication wouldn’t fail, checkout wouldn’t be interrupted.

The crux of the matter is that the data associated with the current user session – i.e., temporary data, are not saved by Hybris anywhere but in memory. And if the server crashes, the data crashes with it. At the very least, a user would need to log in again, which during a sale season always leads to a loss in sales, as many customers simply don’t bother and go to another online store.

In the prototype I demonstrate in the video, the user session does not fail, even if servers are switched (from A to B and back). In real life, they should not change unless the main server crashes.

https://hybrismart.com/2016/08/02/hybris-cluster-redis-session-failover/