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Displaying posts with tag: business continuity (reset)
What is the Top Cause of Application Downtime Today?

I frequently talk to our customer base about what keeps them up at night. While there is a large variance of answers, they tend to fall into one of two categories. The first is the conditioned fear of some monster lurking behind the scenes that could pounce at any time. The second, of course, is the actual monster of downtime on a critical system. Ask most tech folks and they will tell you outages seem to only happen late at night or early in the morning. And that they do keep them up.

Entire companies and product lines have been built around providing those in the IT world with some ability to sleep at night. Modern enterprises have spent millions to mitigate the risk and prevent their businesses from having a really bad day because of an outage. Cloud providers are attuned to the downtime dilemma and spend lots of time, money, and effort to build in redundancy and make “High Availability” (HA) as easy as possible. The frequency of …

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Percona Live Open Source Database Conference 2018 Call for Papers Is Now Open!

Announcing the opening of the Percona Live Open Source Database Conference 2018 in Santa Clara, CA, call for papers. It will be open from now until December  22, 2017.

Our theme is “Championing Open Source Databases,” with topics of MySQL, MongoDB and other open source databases, including PostgreSQL, time series databases and RocksDB. Sessions tracks include Developers, Operations and Business/Case Studies.

We’re looking forward to your submissions! We want proposals that cover the many aspects and current trends of using open source databases, including design practices, application development, performance optimization, HA and clustering, cloud, containers and new technologies, as well as new and …

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How to Deal with XA Transactions Recovery

For most people (including me until recently) database XA transactions are a fuzzy concept. In over eight years with Percona, I have never had to deal with XA transactions. Then a few weeks ago I got two customers having issues with XA transactions. That deserves a post.

XA 101

What are XA transactions? XA transactions are useful when you need to coordinate a transaction between different systems. The simplest example could be simply two storage engines within MySQL. Basically, it follows this sequence:

  1. XA START
  2. Some SQL statements
  3. XA END
  4. XA PREPARE
  5. XA COMMIT or ROLLBACK

Once prepared, the XA transaction survives a MySQL crash. Upon restart, you’ll see something like this in the MySQL error log:

2017-08-23T14:53:54.189068Z 0 [Note] …
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This Week in Data with Colin Charles #7: Percona Live Europe and Open Source Summit North America

Join Percona Chief Evangelist Colin Charles as he covers happenings, gives pointers and provides musings on the open source database community.

Percona Live Europe Dublin

Are you affected by the Ryanair flight cancellations? Have you made alternative arrangements? Have you registered for the community dinner? Even speakers have to register, so this is a separate ticket cost! There will be fun lightning talks in addition to food and drink.

You are, of course, already registered for Percona Live Europe Dublin, …

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Backups and Disaster Recovery

In this post, we’ll look at strategies for backups and disaster recovery.

Note: I am giving a talk on Backups and Disaster Recovery Best Practices on July 27th.

Register Now

When discussing disaster recovery, it’s important to take your business’ continuity plan into consideration. Backup and recovery processes are a critical part of any application infrastructure.

A well-tested backup and recovery system can be the difference between a minor outage and the end of your business.

You will want to take …

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Business Continuity and MySQL Backups

This blog post discusses the business continuity plan around MySQL backups, and how organizations should think about them.

During the years I’ve worked in IT, I’ve learned that backups sometimes are a conceptual subject in organizations. Many companies have them, but don’t document the associated business continuation plan for them. I experienced this the hard way many many years ago, somewhere around when MySQL 5.0 was still widely used.

In most organizations, there are a couple of business continuity subjects that should be described internally. For example, what is the recovery time objective and what is the recovery point objective. Let’s go a bit deeper into both concepts:

Recovery Point Objective:

A recovery point objective describes the utter limit of time data …

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Real Disaster Recovery Lessons from Sandy

Read the original article at Real Disaster Recovery Lessons from Sandy

Also find Sean Hull’s ramblings on twitter @hullsean. Having just spent the last 24 hours in lower manhattan, while Hurricane Sandy rolled through, it’s offered some first hand lessons on disaster recovery. Watching the city and state officials, Con Edison, first responders and hospitals deal with the disaster brings some salient insights. 1. What are [...]

For more articles like these go to Sean Hull's Scalable Startups

Related posts:

  1. What is disaster recovery and why is it important?
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5 Ways to Avoid EC2 Outages

1. Backup outside of the Cloud

Some of the high profile companies affected by Amazon's April 2011 outage could have recovered had they kept a backup of their entire site outside of the cloud.  With any hosting provider, managed traditional data center or cloud provider, alternate backups are always a good idea.  A MySQL logical backup and/or incremental backup can be copied regularly offsite or to an alternate cloud provider.  That's real insurance!

2. Use alternate regions and availability zones

Amazon's outage in April …

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Showing entries 1 to 8