Publications by tag troubleshooting

Learn what K8sGPT offers and how it helps Kubernetes operators become more efficient. This article challenges various GenAI models with several issues and covers running local LLMs.

Downsizing a PostgreSQL cluster’s primary server can manifest into an exciting engineering adventure. Here’s our recent experience performing such a routine task and the lessons we learned from it.

Deploying our Kubernetes-based solution in a new environment uncovered a tricky difference in underlying software configurations. Be ready to dive into solving an exciting SRE mystery involving Rook, Ceph, containerd, and Linux systemd!

How API Priority and Fairness can help your Kubernetes workloads? Here's a real-life case where its flow control features helped us bring a production application back to life.

A fascinating story of our recent incident resulted in a couple of pull requests to Kubernetes-related projects. Be ready to dive into some intricacies of Kubernetes API as well as etcd interaction.

Renewing Let’s Encrypt root certificates for legacy CentOS, handling an error in DNS records with Ingress, restoring a PgSQL table from a backup, dealing with a tricky sharding problem in Elasticsearch, and more.

Our new exciting SRE/Ops stories include complicated Linux server migration (bare-metal to VM), large PostgreSQL replica recovery, small case with ClickHouse Kubernetes operator, and abnormal result of CockroachDB upgrade.

Our stories include a poorly prepared Kafka in Docker, an unexpected network issue for ZooKeeper & ClickHouse, a faulty hardware in the data center, and the PgSQL database optimization.

Troubleshooting & recovering the failed Rook cluster manually. Tips for preventing the disaster and restoring from backups.

When something prevents web applications from proper functioning, you have to investigate into all levels: in your infrastructure (K8s based in our case), third-party services or in the code itself.