Kris Buytaert's blog

Apr 28 2008

MySQL and DRBD, Often say NO :)

Florian is replying to James on the subject of using DRBD for MySQL HA. A discussion started earlier by Eric Florian is refuting most of the arguments that James has against using MySQL and DRBD together.

I`m also saying NO to MySQL and DRBD in most of the cases.. but not for any of the reasons James mentions.

I must say upfront I love DRBD and I have been using it in production for a long time but not for MySQL HA.

The problem with using MySQL on DRBD is the same problem you have when killing the power on a standalone MySQL machine and rebooting that machine.
DRBD saves you the time of powering up your machine and OS. But MySQL still needs to be started again on the standby machine. (In limited cases you might have a lengthy startup process due to eg. Innodb consitency checks) But for lots of organisations this (even limited) downtime is not acceptable.

Both MySQL Cluster and MultiMaster replication give you constant access to your data on more nodes .

For lots of shops, those not needing to scale, those that can live with a limited downtime, DRBD and MySQL is a good match,

But if you want to achieve real high availability as compared to less downtime. or if you are looking to scale your MySQL and want to benefit from HA while you are at it , then MultiMaster is probably the preferred alternative as opposed to DRBD.

In the meanwhile I`ll be happy serving other data from my DRBD volumes ;)

Apr 27 2008

Missed a Camp :(

Bart just pointed to MobileWebCamp , wondering how I could have missed it :(

Apr 27 2008

Liferea for EEE Xandros

Dear Lazyweb,

I've been looking in all the wrong places for a Liferea package that fits nicely on my fresh ASUS EEE, with it's default Xandros and lots of external repositories enabled.
Yes I could install another distro , but I want to play with this one for a while.. then have some arguments to actually migrate .
Got some pointers for me ?

Apr 25 2008

First Post

First post from my fresh EEE , I transferred my .mozilla .gaim and .skype directories from my laptop and I was up and running in less than 5 minutes ;_)

Apr 22 2008

MythTV Woes

Totally forgot to blog about this, or I can't find my own post back.

A couple of weeks ago I was chatting with Tom about MythTV and MPEG bitrates, and I modified mine from my lazy chair.

A week passed by and I realized that I couldn't replay any of the recordings I had made :(

It seemed that while I had changed the bitrate I also accidently had changed
my default recording profile from MPEG-2 PS, to MPEG-2 TS.

Upon realizing that I changed the value back and I had recordings again :)

Apr 21 2008

Remus got awarded best paper

The Remus paper I blogged about earlier seems to have won the Best Paper Award at NSDI. Good to hear .. err read ! :)

Apr 21 2008

Big Four, Little Four`

With Qlusters being "removed" from the Little 4 list I think there is room for a new 4th contender.
My vote is on either Reductive Labs or Zabbix.

Where is your vote ?

Apr 21 2008

Groundwork should be afraid

It seems that Groundworks is afraid
of John. And with reason. I looked into their product and hmm.. well.. I`m not gonna use the words John used.

But given the fact that hey manage to break a working apache setup during their installation, fail to create a working installer and create RPMs that require environment variables to be set before you can install them ..

Well my expectations were lowered drastically. Oh and when you register at their site.. expect to be bothered by supportive sales people. Multiple times :(

Most people are talking about Hyperic, Zenoss , openNMS, Nagios and Groundwork, weird that Zabbix is almost never in that list .. yet

Apr 21 2008

Geek Cooking

Bart promises to cook for us if there aren't enough of us travelling to Limburg.

Which makes me wonder maybe we should organize a Geek Cooking Dinner ..

There is something about geeks and cooking ,dunno what.. couple of years ago we did a cooking workshop with some collegues and more than 60% of them really liked to cook.

And we can even eat ourselve to death when stuffing ourselves with Drupal Pie

Any Takers ? Should have thought about this earlier.. certainly with the Piemaker in the country :)

Apr 18 2008

Yummie MySQL Repository

It seems like Jeremy wants to be MySQL community president this week :)

The announcement of a MySQL yum repository is a good one but it's slightly confusing me .. didn't Jeremy already have this with
Dorsal, where there are also 5.1 builds. So what's the difference between Dorsal and the new yum repo anyway .

But he asks for Adittionals packages , well 5.1 to start with, apart from that the CentosPlus repo also has builds for Cluster , having a uniform place go get those to would be good.

And what about builds for CGE ?
Oh and while you are at it .. can you run genbasedir also .. that way we can also use apt4rpm :)

Now I all need is a repository with all drupal modules packaged separatly :)