When "There is a process already using the admin port 4848", but it is not true

When you try to start Payara 5 / GlassFish with:

asadmin start-domain

...and you get the following error:

There is a process already using the admin port 4848 -- it could be another instance of Payara Server or Payara Micro. Command start-domain failed.

although there is no running Java process and the port is not occupied, you hostname is probably not pingable:

ping $(hostname)

output: Request timeout

Solution:

Add the following line to the /etc/hosts file:

127.0.0.1 [YOUR_NOT_PINGABLE_HOSTNAME]

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Comments:

It works for me :)

Posted by THANKS on January 01, 2019 at 05:16 PM CET #

Thanks alot, Adam. That saved me.

Posted by ThankYou on February 21, 2019 at 06:16 PM CET #

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