OpenJDK Runtime Environment (build 1.8.0_191-b12) You can confirm the installed Java version with the java -version command, for example: $ java -version If you prefer to use an external runtime or use a Unix operating system, you can choose to install the full JDK or the JRE only. The distributions for Unix do not include the runtime environment. The distributions for OSX and Windows include suitable runtime environments for the specific operating system. Nexus Repository Manager requires a Java 8 Runtime Environment (JRE). On these platforms it is recommended that the Docker image be run with the following flags: -ulimit nofile=65536:65536 Some container platforms such as Amazon ECS will override the default limits. The Nexus Repository Docker images are configured with adequate file limits. Windows operating systems do not need file handle limit adjustments. Restart Nexus Repository to activate the change. Please note your OS X version and follow the appropriate instructions.Ĭreate the file: /Library/LaunchDaemons/ The method to modify the file descriptor limits on OSX has changed a few times over the years. Instead, modify the configuration file to add a LimitNOFILE line: If you're using systemd to launch the server the above won't work. So if NXRM is started using init.d there, edit /etc/pam.d/common-session and uncomment the following line ( remove the hash # and space at the beginning of the line): # session required pam_limits.soįor more information refer to your specific operating system documentation. On Ubuntu systems there is a caveat: Ubuntu ignores the /etc/security/nf file for processes started by init.d. Which essentially means that you will need to restart NXRM. This change will only take effect the next time the nexus process user opens a new session. To set the maximum number of open files for both soft and hard limits for the nexus user to 65536, add the following line to the /etc/security/nf file, where 'nexus' should be replaced with the user ID that is being used to run the repository manager: nexus - nofile 65536 On most Linux systems, persistent limits can be set for a particular user by editing the /etc/security/nf file. Make sure to increase the limit on the number of open files descriptors for the user running Nexus Repository Manager permanently to 65,536 or higher prior to starting.

Running out of file descriptors can be disastrous and will most probably lead to data loss. NXRM3 will most likely want to consume more file handles than the per user default value allowed by your Linux or OSX operating system. As a security precaution, do not run Nexus Repository Manager 3 as the root user.

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