Changing jobs in recession

Its a tough decision to change jobs in recession as finding a new job in case of eventuality can be tough. I have been through those times once when I had landed in US and just 3 months after the VCs decided to close the company. It was a tough time at that moment to find a job without a car.

But this time its a different story. I am now in a stable company and it has a recurring revenue model and it will run for 5-10 years easily. Looks like I have become comfortable in the job. Even though I put in 10-11 hours daily at the job for 5 days a week I just feel from inside that its time to change. The job is great and I am working in the platform team that develops frameworks that are used by other teams but something is missing. Not sure what but sometimes you keep on asking yourself this question is it time for a change?

I need a new spark in my life and job. That's why when the co-founders of my previous company contacted me for a job I was dreading on it for 3-4 months but were persistent to call me. Than one day one of the co-founder called and did a man to man talk and said "Looks like you have became comfortable at your job and do not want to take few risks". His argument was that when he at the age of 38 with two kids can take a risk of starting a company why can't I take a risk of just switching jobs?

I read it once that you grow only when you bring some change in your life and being comfortable in a job definitely means a chance of becoming obsolete soon.

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RabbitMQ java clients for beginners

Here is a sample of a consumer and producer example for RabbitMQ. The steps are
Download Erlang Download Rabbit MQ Server Download Rabbit MQ Java client jarsCompile and run the below two class and you are done.
This sample create a Durable Exchange, Queue and a Message. You will have to start the consumer first before you start the for the first time.

For more information on AMQP, Exchanges, Queues, read this excellent tutorial
http://blogs.digitar.com/jjww/2009/01/rabbits-and-warrens/

+++++++++++++++++RabbitMQProducer.java+++++++++++++++++++++++++++
import com.rabbitmq.client.Connection; import com.rabbitmq.client.Channel; import com.rabbitmq.client.*; public class RabbitMQProducer { public static void main(String []args) throws Exception { ConnectionFactory factory = new ConnectionFactory(); factory.setUsername("guest"); factory.setPassword("guest"); factory.setVirtualHost("/"); factory.setHost("127.0.0.1"); factory.setPort(5672); Conne…

Logging to Graphite monitoring tool from java

We use Graphite as a tool for monitoring some stats and watch trends. A requirement is to monitor impact of new releases as build is deployed to app nodes to see if things like
1) Has the memcache usage increased.
2) Has the no of Java exceptions went up.
3) Is the app using more tomcat threads.
Here is a screenshot

We changed the installer to log a deploy event when a new build is deployed. I wrote a simple spring bean to log graphite events using java. Logging to graphite is easy, all you need to do is open a socket and send lines of events.
import org.slf4j.Logger;import org.slf4j.LoggerFactory; import java.io.OutputStreamWriter; import java.io.Writer; import java.net.Socket; import java.util.HashMap; import java.util.Map; public class GraphiteLogger { private static final Logger logger = LoggerFactory.getLogger(GraphiteLogger.class); private String graphiteHost; private int graphitePort; public String getGraphiteHost() { return graphiteHost; } public void setGraphite…

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Woke up by earthquake at 7:00 AM in morning and then couldn't get to sleep. I took a bath, made my tea and started checking emails and saw that after last night deployment three storage node out of 100s of nodes were running into Full GC. What was special about the 3 nodes was that each one was in a different Data centre but it was named same app02. This got me curious I asked the node to be taken out of rotation and take a heap dump. Yesterday night a new release has happened and I had upgraded spymemcached library version as new relic now natively supports instrumentation on it so it was a suspect. And the hunch was a bullseye, the heap dump clearly showed it taking 1.3G and full GCs were taking 6 sec but not claiming anything.

I have a quartz job in each jvm that takes a thread dump every 5 minutes and saves last 300 of them, checking few of them quickly showed a common thread among all 3 data centres. It seems there was a long running job that was trying to replicate pending…

Programming fun at startup

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