I started to remember why did I start blogging. The answer is “to collect my experience and share it publicly”. So, I’ll keep this going and now I want to remember how to upgrade the Cassandra cluster smoothly with no downtime.
Category Archives: Databases
25 web-sources for Operations Engineering
Information in the world of information! Text data in the world of data! Such subjects – the best friends for us and the best enemies at the same time. I recently surprised I hold so many articles and Linux guides about tools I still don’t use. Data juggling is going to be one of the most important qualities of contemporary human. Even more handy than stubbornness and work speed.
Why databases are not for containers
If we attentively look at IT industry at 2017, all of us will see “containers” and “Docker” as the top buzzwords ever. We started to package developed software in Docker containers in every field. We’re using containers everywhere. From small startups to huge microservices platforms. From CI platform to Raspberry Pi ARM-targeted research. From database management systems to….
Infrastructure from scratch. Part 6. Database
Database question is probably must have the most reliable answer in all service questions. The more you ensured what to use and how to maintain – the more fast and reliable your system will be.
Infrastructure from scratch. Part 5. Backup.
I`d compare backups with meditation on human body. You don’t actually see the benefits, but in long term backups keep you healthy. Because they verify your infrastructure have reserve sources. Meditation helps to overcome the hardest moments of your life throwing out dirty thoughts. The clear backup similarly helps engineer to go through some kind of disasters. Even disasters we couldn’t guess before it was happened.
Watch AWS resources logs in Kibana
It’s easy to manage Amazon solutions which don’t require any special operations skill. Set load balancer, speed up content delivery with Cloudfront, store enormous amounts of data in S3 in 2 clicks. But what if we wish to get into the bottom about idea how do they all work? Do they work right in our case?
Infrastructure from scratch. Part 3. Monitoring
Keep going with infrastructure improvement, I stayed some time on monitoring issue. Generally monitoring is inseparable component of DevOps workflow. It allows to clearly control each subject of maintained service.
Monitoring work is interesting as well as complicated. This field, like database, doesn’t have ready solutions for any kind of project. For each situation you have to figure out what metrics are special and what graphs you must check at first.
Infrastructure from scratch. Part 0: Challenge
I tried to write my posts saving a little distance between my life and technologies I’m learning. But my job road was changed. Now I have to describe my thoughts as from technical viewpoint, as sure as from social too.
Cheatsheet: database shell commands
In first steps young DBA can greedily soak up all kinds of database knowledges: as RDBMS as NoSQL. We’re realising things like how table index works, how to optimize memory caching, write triggers and procedurs etc.. But we still can forget a simple command to create user or show tables list. Also we can get stuck when switching from MySQL to PostgreSQL or whatever else, cause command syntax is different.
Oracle database experience: 13 thoughts about PL/SQL
At the day when this post was published, I didn’t have many ideas about “how database works”. As for RDBMS, as for NoSQL solutions. But someday I accidentally got one SQL task.
