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10 Newer Entries Showing entries 31 to 36

Displaying posts with tag: admin (reset)

Why a new memory engine may change everything ?
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I’m sure you are aware that the last Percona server release includes a new improved MEMORY storage engine for MySQL.
This new engine is based on Dynamic Row Format and offers some of great features, specialy for VARCHAR, VARBINARY, TEXT and BLOB fields in MEMORY tables.

But because this new MEMORY engine by Percona has some limitations and because Percona server …


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Finding tables without primary keys
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I was checking a third party server, and I needed to find if there were tables without primary keys. This is important to know, not only because the lack of primary keys affects performance and data accuracy in general, but also because in row-based replication performance can degrade beyond belief when updating tables without primary keys.Anyway, I did not remember off the bat any method to get this information from a server with thousands of tables, and thus I went to find a solution on my own.My first instinct called for using the COLUMNS

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Scribd is Hiring (I’m Looking for an Operations Engineer to Join My Team)
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Scribd is a top 100 site on the web and one of the largest sites built using Ruby on Rails. As one of the first rails sites to reach scale, we’ve built a lot of infrastructure and solved a lot of challenges to get Scribd to where it is today. We actively try to push the envelope and have contributed substantial work back to the open source community.

Scribd has an agile, startup culture and an unusually close working relationship between engineering and ops. You’ll regularly find cross-over work at Scribd, with ops people writing …

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Enabling IPv6 Support in nginx
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This is going to be a really short post, but for someone it could save an hour of life.

So, you’ve nothing to do and you’ve decided to play around with IPv6 or maybe you’re happened to be an administrator of a web service that needs to support IPv6 connectivity and you need to make your nginx server work nicely with this protocol.

First thing you need to do is to enable IPv6 in nginx by recompiling it with --with-ipv6 configure option and reinstalling it. If you use some pre-built package, check if your nginx already has …

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Remote replication setup with Gearman and MySQL Sandbox
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A few months ago, Brian Aker invited me to have a look at Gearman, saying that I could find interesting combinations with MySQL Proxy. I did not forget, and I kept thinking about interesting ways of using it. The first idea that I managed to apply is not related to Proxy, but to a practical problem that I have been keeping in reserve for years, i.e. …
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KDE Konsole Backgrounds and ssh
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If you are a GUI-oriented person, you need not read this. But if you are like me, you make heavy use of the console. If you are managing many machines as well as your own Linux workstation, it’s VERY important to know where your console session is.

Too many times in the past I had wanted to bring down my workstation, and would type “shutdown” or “reboot” in the console window, only to find out to my horrors that the console was really a remote session to one of my web servers serving up hundreds of web sites.

Whoops!

Well, that prompted me into developing a solution where I can tell at a …


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10 Newer Entries Showing entries 31 to 36

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