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I had the problem yesterday, two of my instances where my app and db server are running are frequently having connectivity issue for some unknowing reason and after rebooting these instance all went fine. Still struggling what might be the reason and how to avoid this in future.

Sharing you the instances from the log file. Awaiting for the suggestion.

11.57 AM: java.net.SocketException: Broken pipe We had to restart the jboss of application2 server to bring the application up

2:27 PM Communication link failure in App1 server Application1 jboss was down. Had to restarted jboss in application1

3:42 PM Both application servers were showing abnormal behaviors Reason:

 1. jdbc.exceptions.jdbc4.CommunicationsException: Communications link
    failure between app server and db server
 2. java.net.SocketException: Broken pipe

We had to restart both of the app server to make the application up

4:12 PM Both app server were stopped Reason:

 1. jdbc.exceptions.jdbc4.CommunicationsException: Communications link  
    failure between app server and db server
 2. java.net.SocketException: Broken pipe

After rebooting both of the instances and restarted both of the app server, the application went up and running fine.

BMW
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Priyaranjan Rath
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  • from my view, it is no related with aws instance. you need focus on jboss and database troubleshooting. By the way, what database do you use? separate ec2 instance or aws RDS? – BMW Dec 24 '14 at 11:36
  • Its a my sql db. separate ec2 instance. – Priyaranjan Rath Dec 24 '14 at 11:42
  • any jboss error or db connection errors? – BMW Dec 24 '14 at 11:49
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    http://stackoverflow.com/questions/2121829/com-mysql-jdbc-exceptions-jdbc4-communicationsexceptioncommunications-link-fail – BMW Dec 24 '14 at 11:54
  • Its a java.net.SocketException: Broken pipe once again happened today and in production env. Had to restart to make the app up. Any more input you need please let me know. – Priyaranjan Rath Dec 24 '14 at 12:58
  • Can you add section from your jboss configuration? A validation block may improve the behavior, in case it's not there yet. – taleodor Jan 02 '15 at 23:48

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