Just now I wanted to create a new post, and found there was a newer version of WP, and also there was a message said that the update automatically failed already, so need a manual update. Such thing n...

I have forgot why I upgraded my blog to PHP7 and MySQL5.7, but I just did it. First have to say, even I had no upgrade plan for such thing. At that time I thought I could upgrade the MySQL rpm to 5.7,...

On the day before last day, my client told me the resource of EC2 instance had been increased, so I decided to increase memory setting for Oracle instance. The total memory was 4G, so I changed the me...

I built a test environment in my MicroSever Gen8, while these days I found some strange things that one server would upload lots of data to some sites and consumed all of my upload bandwidth. I tried ...

On Jan 16, one Linux server crashed and the Oracle database could not be opened after server reboot, the prompt was the file was used by other process. It was surprising as we had restarted the server...