Properties: 

Description:

This variable defines the size of each log file in a log group. While setting this variable it should be noted that combined size of all log files should be less than …

In a lot of environments.

Peter gives a nice overview why you don't always need to invest in big fat redundant hardware.

We've tackled the topic last year already ..

Now I often get weird looks when I dare to mention that Raid is obsolete ..people fail to hear the "in a lot of environments"

Obviously the catch is in the second part, you won't be doing this for your small shop around the corner with just one machine. You'll only be doing this in an environment where you can work with a redundant array of inexpensive disks. Not with a server that has to sit in a remote and isolated location.

Next to that there are situations where you will be using raid, but not for redundancy, but for disk throughput.

I attended several events in June of this year including Graphing Social Patterns East, Velocity and Structure 08. At each of these events, I tried to take some notes and posted them to my personal blog. I received a few pings from readers of this blog to point them to a list of these posts. It took some time but here is the list of my notes. In some cases, I have linked directly to the presentation files.

High-performance Ajax Applications: Julien Lecomte (Yahoo!) talked about how to …

One of the approaches we are using to look at MySQL scalability is to identify and if possible eliminate hot locks inside MySQL. For locks that cannot be eliminated, we are looking at ways to reduce the mutex hold times, or replace the critical sections with lock-free algorithms. It won't happen overnight, but it needs to be done if we are to make MySQL more scalable.

Along the way we're planning to blog about how we identified and eliminated performance bottlenecks and provide you with all the gory details about the process and technique. This will hopefully entice you all to contribute to fixing performance issues We can reach our goal of a highly scalable MySQL much faster!. If you any other ideas about how we can scale the MySQL scalability effort (pun intended), or you would like to bust some locks, please feel free to let us know.

Fixing locks is sometimes very tricky as sometimes eliminating a really hot lock can only …

One of the approaches we are using to look at MySQL scalability is to identify and if possible eliminate hot locks inside MySQL. For locks that cannot be eliminated, we are looking at ways to reduce the mutex hold times, or replace the critical sections with lock-free algorithms. It won't happen overnight, but it needs to be done if we are to make MySQL more scalable.

Along the way we're planning to blog about how we identified and eliminated performance bottlenecks and provide you with all the gory details about the process and technique. This will hopefully entice you all to contribute to fixing performance issues We can reach our goal of a highly scalable MySQL much faster!. If you any other ideas about how we can scale the MySQL scalability effort (pun intended), or you would like to bust some locks, please feel free to let us know.

Fixing locks is sometimes very tricky as sometimes eliminating a really hot lock can only …

One of the approaches we are using to look at MySQL scalability is to identify and if possible eliminate hot locks inside MySQL. For locks that cannot be eliminated, we are looking at ways to reduce the mutex hold times, or replace the critical sections with lock-free algorithms. It won't happen overnight, but it needs to be done if we are to make MySQL more scalable.

Along the way we're planning to blog about how we identified and eliminated performance bottlenecks and provide you with all the gory details about the process and technique. This will hopefully entice you all to contribute to fixing performance issues We can reach our goal of a highly scalable MySQL much faster!. If you any other ideas about how we can scale the MySQL scalability effort (pun intended), or you would like to bust some locks, please feel free to let us know.

Fixing locks is sometimes very tricky as sometimes eliminating a really hot lock can only …

For those of you interested in getting maximum performance out of your DRBD-based HA clusters, I am hosting a webinar on the subject on Wednesday, 8/27 at 1800 UTC (2pm Eastern, 11am Pacific).

The webinar is offered free of charge and it’s already pretty tight in terms of attendance, the event being limited to a maximum of 60 attendees. But if you’re quick, you might still stand a chance of grabbing a front-row seat. Check out this page on our website, it has all the relevant information.

…

While we were mostly excited to become part of Sun, there was at least one drawback too. MySQL had a worldwide policy of "Scandinavian style" 5 week vacations per year (4 Summer, 1 Winter week). Sun doesn't have such a worldwide policy, so most of us lost some vacation days there. But there is one group of employees that still enjoy this benefit... those of us that actually live in Scandinavia!

Those 4 weeks are however now gone for my part :-( So I thought I'll make a soft start to working by a) yesterday doing almost nothing and b) today blogging. A long long time ago before I left for my vacation Mark Callaghan requested more blog posts about MySQL Cluster, so I thought why not start with one right now. As previously noted there are many good MySQL Cluster bloggers out there, but admittedly some of their blog postings can be very …

While we were mostly excited to become part of Sun, there was at least one drawback too. MySQL had a worldwide policy of "Scandinavian style" 5 week vacations per year (4 Summer, 1 Winter week). Sun doesn't have such a worldwide policy, so most of us lost some vacation days there. But there is one group of employees that still enjoy this benefit... those of us that actually live in Scandinavia!

Those 4 weeks are however now gone for my part :-( So I thought I'll make a soft start to working by a) yesterday doing almost nothing and b) today blogging. A long long time ago before I left for my vacation Mark Callaghan requested more blog posts about MySQL Cluster, so I thought why not start with one right now. As previously noted there are many good MySQL Cluster bloggers out there, but admittedly some of their blog postings can be very …

While we were mostly excited to become part of Sun, there was at least one drawback too. MySQL had a worldwide policy of "Scandinavian style" 5 week vacations per year (4 Summer, 1 Winter week). Sun doesn't have such a worldwide policy, so most of us lost some vacation days there. But there is one group of employees that still enjoy this benefit... those of us that actually live in Scandinavia!

Those 4 weeks are however now gone for my part :-( So I thought I'll make a soft start to working by a) yesterday doing almost nothing and b) today blogging. A long long time ago before I left for my vacation Mark Callaghan requested more blog posts about MySQL Cluster, so I thought why not start with one right now. As previously noted there are many good MySQL Cluster bloggers out there, but admittedly some of their blog postings can be very …