Glassfish Parando

Question

Friends, I’m facing a problem. Out of nowhere, my apps stop working.

I use Glassfish 4.1.1, running on an AWS server, with 4 published applications, 3 Java web applications and 1 web service application. All applications are running normally when suddenly out of nowhere they stop with no error log in Glassfish logs. Simply stop.

To get back to work, I need to restart Glassfish.

This AWS server has 2 cores with 4GB RAM, but in my monitoring, RAM works at most with 65% of its total capacity. CPU usage also works at a maximum of 45% of its capacity.

On the same server I run Mysql. The configuration for Mysql is:

innodb_buffer_pool_size = 1932735283

max_connections         = 302

wait_timeout            = 10800

interactive_timeout     = 100

However Mysql does not stop working.

Regarding Glassfish, the settings I use are:

-XX:MaxPermSize=1024m

-Xmx1024m

Please, could someone help me with this problem? Thank you very much

Answer 1

Check the logs and post here, should be on: /YOUR_GLASSFISH_INSTALL/glassfish/domains/domain1/logs/

If you don’t have logs you can enable, or increase the log level:

Configuration -> Server Config -> Logger Settings.

Then select: 'Logger Levels'.

taken from https://stackoverflow.com/questions/9184432/how-do-i-set-logging-level-in-glassfish

Note: The different log levels in order are:

SEVERE, WARNING, INFO, CONFIG, FINE, FINER, and FINEST.