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Vitess – New patch release (v12.0.1) with Apache Log4j patch

Today’s blog is a short but quite important one. As you might be aware, a new vulnerability has been identified in Apache Log4j, a Java library intended to create error logs in the applications. It has been assigned CVE CVE-2021-44228. The issue itself is quite serious, remote code execution through properly crafted log messages with … Continued

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Vitess – How to upgrade Vitess Cluster?

Quite recently we have seen the release of a new Vitess version (v12.0.0) and this may lead to some questions – how to upgrade your Vitess installation when you use the Kubernetes and Vitess operator? In this blog post we would like to show the upgrade process of a simple Vitess cluster. There are several … Continued

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Vitess – Merging the shards

In the last blog we have split one shard into several smaller ones, to accommodate a significant increase of load on one of the accounts. In this blog we are going to pretend that this condition no longer exists and we want to bring the cluster back to its original shape. If you would like … Continued

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Vitess – Sharding the shard

In the last blog we ended up with three shards for our newsbtest keyspace. This is great but let’s assume that we quickly have noticed that our problem has not disappeared. One of the shards is generating the majority of the load and it impacts the whole application. How can we deal with such issue? … Continued

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