jgillman's Liquid Web Update Unofficial tips, tricks, and happenings from a Liquid Web sales engineer

25Jan/130

Rough Gluster Benchmark

So, I've decided to benchmark GlusterFS.

The volume configuration was a distributed-replicated one in a 2x2 configuration of 1GB Storm Instances. Each instance was connected to a 150GB HPBS volume formatted XFS.

I then created 2 more 1GB Storm instances for the "clients". From there, I concurrently ran iozone with the same parameters as my HPBS benchmark.

Instances all used the latest version of Debian Squeeze. Compile target was the same as well as the HPBS test.

I'll just toss the final numbers down. Again - both of these nodes were running iozone concurrently.

IOPS Test

Client 1

Children see throughput for 32 initial writers = 4446.52 ops/sec
Children see throughput for 32 readers = 11907.26 ops/sec
Children see throughput for 32 random readers = 1142.15 ops/sec
Children see throughput for 32 random writers = 373.25 ops/sec

Client 2

Children see throughput for 32 initial writers = 4507.93 ops/sec
Children see throughput for 32 readers = 11926.79 ops/sec
Children see throughput for 32 random readers = 1212.09 ops/sec
Children see throughput for 32 random writers = 407.77 ops/sec

Comparison

SSD Disk Test

Throughput Test

Client 1

Children see throughput for 32 initial writers = 19018.32 KB/sec
Children see throughput for 32 readers = 45684.51 KB/sec
Children see throughput for 32 random readers = 4636.80 KB/sec
Children see throughput for 32 random writers = 1550.62 KB/sec

Client 2

Children see throughput for 32 initial writers = 19118.81 KB/sec
Children see throughput for 32 readers = 45607.64 KB/sec
Children see throughput for 32 random readers = 4797.18 KB/sec
Children see throughput for 32 random writers = 1613.63 KB/sec

Comparison

SSD Throughput Test

10Mar/120

Creating a Gluster Back End on Storm Servers

As described in a previous article, Gluster is a good way to provide centralized storage for a load balanced cluster on Storm.

More below the fold

29Feb/120

Big Storage Smart Server

Have you needed a SmartServer with big storage, but didn't want to spend $500 for processor and memory you don't need?

Right now we have a couple i5-760 SmartServers with 4GB of RAM but 1.8TB of storage. These are perfect for those who just need place to store large amounts, whether using the server for serving the content itself, or as a form of network attached storage. These gems are only running for a cool $250. The closest thing that would give you 1.8TB of storage is gonna run you for $500

Want to run a big fat Gluster back end? These are the boxen to use!

And as always, if you have any questions, don't hesitate to give us a call at 800-580-4985.

6Feb/120

Load Balancing with Storm/SmartServers

One of the nice things about our cloud platform (Storm On Demand / Smart Servers) is the ability to easily provision load balancing between nodes. This can be used for a multitude of purposes, from increasing overall performance, to mitigating downtime due to server problems.

However, if you're considering going with a load balanced setup, there are a few key issues to be cognizant of.

More below the fold...

   
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