Exposing MyRocks internals via system variables: Part 5, Data Reads

(In the previous post, Part 4, we covered Compression and Bloom Filters) In this blog post, we continue on our series of exploring MyRocks mechanics by looking at the configurable server variables and column family options. In our last post,…

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Exposing MyRocks Internals via system variables: Part 4, Compression and Bloom Filters

(In the previous post, Part 3, we covered Compaction.) In this blog post, we continue on our series of exploring MyRocks mechanics by looking at the configurable server variables and column family options. In our last post, I explained at a…

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Exposing MyRocks Internals Via System Variables: Part 3, Compaction

(In the previous post, Part 2, we covered Initial Data Flushing.) In this blog post, we continue our series of exploring MyRocks mechanics by looking at the configurable server variables and column family options. In our last post, I explained…

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Harnessing the power of Jinja2 with Ansible

Configuration files management is the core component of every configuration management tool. Templates are one of the best methods for creating configuration files as they allow dynamic variables. Ansible has a template module that uses Jinja2 in its core. Jinja2…

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Exposing MyRocks Internals via system variables: Part 2, Initial Data Flushing

(In the previous post, Part 1, we covered Data Writing.) In this blog post, we continue on our series of exploring MyRocks mechanics by looking at configurable server variables and column family options. In our last post, I explained at…

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Automating Tungsten upgrades using Ansible

Continuent Tungsten is one of the few all-in-one solutions for MySQL high availability. In this post I will show you how to automate the upgrade process using Ansible. I will walk you through the individual tasks and, finally, give you…

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Testing Cassandra compatible APIs

In this quick blog post, I’m going to assess how the databases that advertise themselves as “Cassandra API-compatible” fare in the compatibility department. But that is all I will do, only API testing, and not an extensive testing, just based…

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Rotating your ProxySQL log files

Recently I received several questions about rotating log files for ProxySQL, so I decided to draft it up as a blog post. Let me go by this using an example. In my testing lab, I have set up a fairly…

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Monitoring your 5.7 InnoDB cluster status

Recently we had a customer who came to us for help with monitoring their InnoDB cluster setup. They run a 5.7 InnoDB cluster and suffered from a network outage that split up their cluster leaving it with no writeable primaries….

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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…

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