I get the error message ”Too many open files” with JRebel
JBoss’s approach for monitoring application descriptor files can cause the “Too many open files” on *nix machines with a low limit of open files per user. The current solution is to increase the number of file handles or to disable JBoss URLDeploymentScanner from jboss-service.xml.
The limit of open files can be verified by ulimit -a. Increasing of the limit requires root privileges and can be done for the application server via sudo bash -c 'ulimit -n 8192; sudo -u yourUserName ./appServerStartupScript'. Permanent user configuration is done by editing the /etc/security/limits.conf and adding the lines yourUserName hard nofile 8192 and yourUserName soft nofile 8192 at the end of this file.
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