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OrangeFS (formerly PVFS) is an lgpl licensed userspace networked parallel file system. OrangeFS can be accessed through included system utilities, user integration libraries, MPI-IO and can be used by the Hadoop ecosystem as an alternative to the HDFS filesystem. OrangeFS is used widely for parallel science, data analytics and engineering applications. While applications often don't require Orangefs to be mounted into the VFS, users do like to be able to access their files in the normal way. The Orangefs kernel client allows Orangefs filesystems to be mounted as a VFS. The kernel client communicates with a userspace daemon which in turn communicates with the Orangefs server daemons that implement the filesystem. The server daemons (there's almost always more than one) need not be running on the same host as the kernel client. Orangefs filesystems can also be mounted with FUSE, and we ship code and instructions to facilitate that, but most of our users report preferring to use our kernel module instead. Further, as an example of a problem we can't solve with fuse, we have in the works a not-yet-ready-for-prime-time version of a file_operations lock function that accounts for the server daemons being distributed across more than one running kernel. Many people and organizations, including Clemson University, Argonne National Laboratories and Acxiom Corporation have helped to create what has become Orangefs over more than twenty years. Some of the more recent contributors to the kernel client include: Mike Marshall Christoph Hellwig Randy Martin Becky Ligon Walt Ligon Michael Moore Rob Ross Phil Carnes Signed-off-by: Mike Marshall <hubcap@omnibond.com>
3 lines
77 B
C
3 lines
77 B
C
extern int orangefs_sysfs_init(void);
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extern void orangefs_sysfs_exit(void);
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