Eventbrite uses Crittercism’s new APM real-time alerts to monitor their mobile app performance.

“Eventbrite’s platform helps people create and attend events, and the mobile component to our business is as important to us as our web offering. We need to be able to monitor the stability and performance of our mobile apps at all times. Crittercism provides us with crucial real-time monitoring of our mobile operations. With Crittercism’s Mobile APM real-time alerts, we’re excited to have even more visibility into mobile performance issues.”

- Sean Coady, Director of Mobile Development at Eventbrite

Have you tried Crittercism NDK yet? TRY IT NOW!

“We are thrilled to be an early adopter of Crittercism NDK. With Android NDK support from Crittercism, we can now manage our production apps with the confidence that every critical bit of information is being collected, allowing us unique visibility into our Android performance and stability.”

- Payton R. White, Director of Technology, ngCore, ngmoco:)

Move over Higgs Boson, have we got news for you!

Try out Crittercism’s Enterprise Plan for 30 Days and access new features such as Android NDK and Real-Time Dynamic Alerts.

Crittercism NDK reveals for the first time in the history of ever performance issues originating within Android NDK. By exposing these issues, you can now speed up investigation time and continue to lower development costs, ultimately improving app ratings, reviews, conversion and revenue.

Dynamic Real-Time Alerts now allow you to receive immediate app performance notifications to proactively manage any issues impacting consumer behavior within their apps including app loads, in app purchases, game play, level purchase, subscriptions, productivity, education, entertainment, etc.

Check it out!

Try Crittercism’s Enterprise Plan for 30 Days! 

The Critters are holding Office Hours at iOS Dev Camp:

Where: PayPal (eBay) Offices
2161 N 1st Street
San Jose, CA 95131

When: Friday, July 20: 5pm-10pm
Saturday, July 21: 9am-10pm
Sunday, July 22: 9am-6pm

Come meet the Critters, get a cool t-shirt and ask any technical questions from our tech team at iOS Dev Camp.

During office hours, you can ask questions about bugs in your apps, add tracking for handled exceptions, implement breadcrumbs more effectively, and learn about new features we have rolled out.

At Crittercism we use chef to easily deploy and manage our servers. We started noticing very poor performance (high CPU usage) on our chef machine — luckily we found this article on Hacker News:

http://blog.wpkg.org/2012/07/01/java-leap-second-bug-30-june-1-july-2012-fix/

dmesg showed the following output:

[2245059.916474] Clock: inserting leap second 23:59:60 UTC
[2247718.768385] Clocksource tsc unstable (delta = 1099511625387 ns)

The bug itself is in the Linux kernel, but Java applications are particularly vulnerable. Chef is primarily Ruby based, but does have one Java component — “Chef Solr” a light wrapper around Apache Solr. Its function is to allow quick search of any chef metadata (such as the hundreds of nodes we have!)

image from http://wiki.opscode.com/display/chef/Architecture

The article points out a quick fix, which sure enough worked almost immediately:

/etc/init.d/ntp stop
date `date +"%m%d%H%M%C%y.%S"`

Disabling ntp may cause your system clock to skew in the long run, so we’ll try to re-enable it tomorrow.

On a side note, our problem wasn’t as bad as some other folks, who had entire linux clusters crash.

This stuff interest you? Crittercism is hiring a Senior Operations Engineer.