Re: Relationship between Zookeeper and Kafka

2013-05-21 Thread Philip O'Toole
Cool. By the way, I do mean you should use 'atop'. That was not a typo on my part. http://www.atoptool.nl/downloadatop.php apt-get install atop on Ubuntu systems. Philip On May 21, 2013, at 4:51 PM, Jason Weiss wrote: > Philip, > > Thanks for the response. I used top yesterday and deter

Re: Relationship between Zookeeper and Kafka

2013-05-21 Thread Jason Weiss
Philip, Thanks for the response. I used top yesterday and determined that part of my problem was that the kafaka shell script is pre-configured to only use 512M of RAM, and thus it wasn't using memory efficiently. That has helped out tremendously. Adding an echo at the start of the script that it

Re: Relationship between Zookeeper and Kafka

2013-05-21 Thread Philip O'Toole
As a test, why not just use a disk with provisioned IOPs of 4000? Just as a test - see if it improves. Also, you have not supplied any metrics regarding the VM's performance. Is the CPU busy? Is IO maxed out? Network? Disk? Use a tool like atop, and tell us what you find. Philip On May 20, 2

Re: Relationship between Zookeeper and Kafka

2013-05-20 Thread Ken Krugler
Hi Jason, On May 20, 2013, at 10:01am, Jason Weiss wrote: > Hi Scott. > > I'm using Kafka 0.7.2. I am using the default replication factor, since I > don't recall changing that configuration at all. > > I'm using provisioned IOPS, which from attending the AWS event in NYC a > few weeks ago was

Re: Relationship between Zookeeper and Kafka

2013-05-20 Thread Scott Clasen
Ahh, yeah, piops is definitely faster than standard EBS, but still much slower than local disk. you could try benchmarking local disk to see what the instances you are using are capable of, then try tweaking iops etc to see where you get. M1.Larges arent super fast so your macbook beating them

Re: Relationship between Zookeeper and Kafka

2013-05-20 Thread Jason Weiss
Hi Scott. I'm using Kafka 0.7.2. I am using the default replication factor, since I don't recall changing that configuration at all. I'm using provisioned IOPS, which from attending the AWS event in NYC a few weeks ago was presented as the "fastest storage option" for EC2. A number of partners pr

Re: Relationship between Zookeeper and Kafka

2013-05-20 Thread Scott Clasen
My guess, EBS is likely your bottleneck. Try running on instance local disks, and compare your results. Is this 0.8? What replication factor are you using? On Mon, May 20, 2013 at 8:11 AM, Jason Weiss wrote: > I'm trying to maximize my throughput and seem to have hit a ceiling. > Everything d