When installing a package on Linux, by default the /tmp directory is used for temp files. Packages may be quite large and the created temp files are of similar size as these.

Linux systems often use RAM-backed /tmp filesystems of only a few gigabytes, and the recommendation in Linux is to use /tmp only for small temporary files and to use /var/tmp for large ones. With default settings we have had occasions when /tmp has run out of space for a single install operation (also due to two files being created during install, see MGNLPCK-46).

It is possible to redirect the /tmp folder in Java by assigning java.io.tmpdir, but this requires explicitly doing this. A better solution would be if Magnolia comes with a better default, and allow this to be overridden with magnolia.properties or similar.