How to run RHEL5/Centos5 in Google Cloud

Google cloud instances run on top of KVM hypervisor. In newer KVM versions, such as the one used in Google Cloud, virtio-scsi is used instead of an older virtio-blk storage backend. The virtio-scsi disk devices looks like: In RHEL6, a module…

Read More >

Lessons learned from debugging application performance in Cloud

Lift and shift migration using tools like Cloudendure is the fastest way to migrate ‘on premises’ systems to Google Cloud. When the migration is complete, the environment can be refactored to use cloud-native capabilities. During application testing after a recent automated…

Read More >

Site Reliability Engineering – Networking

Introduction In this blog post, I’m not going to talk about what the term SRE means or how it works. My understanding is that Google has invented the term “Site Reliability Engineer” and that this is Google’s way of doing…

Read More >

Exporting custom metrics to influxdb

In the TICK stack from influxdata , Telegraf is used to collect and send data to influxdb. Metrics in Influxdb can then be viewed using visualization tools like Grafana. There are several input and output plugins for telegraf, which can…

Read More >

Running Containers in Amazon EC2 Container Service

Minto Joseph explains how to run logstash in Amazon EC2 Container Service.

Read More >

LISA16 Conference Highlights: Change is Coming!

Chris Stankaitis, Team Manager, Site Reliability Engineering at Pythian, reflects on the theme of change at LISA16.

Read More >

7 Tips for Managing Infrastructure With Terraform

Kevin Pedersen, Team Manager, Service Reliability Engineering at Pythian, provides some considerations to keep your Terraform environment manageable.

Read More >

Fun with Hadoop

Rohan Bhagat, Systems Administrator at Pythian, details his findings and experiences after deploying his own Hadoop cluster.

Read More >

vm.swappiness and OOM in RHEL6

The behavior of vm.swappiness was always a bit confusing for novice linux users, as setting vm.swappiness to 0 would not completely disable swapping in the system during a memory crunch. vm.swappiness would only affect the agressiveness of swapping. Following upstream…

Read More >

Encrypting sensitive data in puppet using hiera-eyaml

Minto Joseph, Site Reliability Consultant at Pythian, explains how to encrypting sensitive data in puppet using hiera-eyaml.

Read More >
Page 1 of 3123