On March 8th, Datadog totally paralyzed around the world and it continued a few days.

I was interested in the caurses of that failure from the point of view of my pure engineering interest. However, Datadog have not disclosed anything yet.

I list up three kinds of technologies I am interested in except computing. If I were young, I would try to dive into these fields.

At the end of 2014, I was shocked at the progress of blind deblurring algorithm, so I studied the recent researches in this field.

I read many papers and made a system based on this paper: “Blind deconvolution using alternating maximum a posteriori estimation with heavy-tailed priors”.