trapexit/mergerfs 2.30.0

mergerfs-2.30.0

on GitHub

If you find mergerfs and/or my other work useful please consider supporting their development.

Features

• inodecalc: new argument that allows controlling how inodes are calculated. Can help with NFS stale file handle errors.
• nfsopenhack: new argument that helps working around issues with certain issues with NFS not being fully POSIX compatible when exporting mergerfs.
• new msp policies: "most shared path". Like ep path preserving policies but will walk back the directory tree till something is found.
• readdirplus: when a readdir happens mergerfs can stat files at the same time. Similar to the NFS feature. Might improve directory listing performance depending on use case.
• config file: Allows you to put config arguments in a "ini" like file (key=val) and reference that in the mount options.
• new runtime API based on ioctl (will be removing the xattr based API in mergerfs 3.0)
• moveonenospc: now uses policies just like the regular filesystem functions providing more control over where the file goes.

Bug fixes

• Fix building on FreeBSD
• Reworked readdir code in general and fixed a NFS readdir race condition that is in libfuse
• inodecalc algo that makes mergerfs work better with some 32bit software that doesn't handle 64bit inode values
• inodecalc algo that helps with changing files out of band problems when exporting mergerfs through NFS.
• fixed deb package building that broken mounting as non-root

misc

• misc updates to docs
• general code cleanup
• prep for mergerfs v3.0 (which will be a breaking change with regard to options)

Changelog:

• 30d13b7 inodecalc: add 32bit versions of hashs
• 5989d41 readdir: use getdents64 for compatibility with ARM64
• 1d2a1ba README.md: move kernel bugs to wiki
• e639f3d README.md: update faq regarding Plex and page caching
• 173193d Update issue templates
• 0709b2e add missing options to usage
• 15a0aed cleanup: move some config data structures to separate files
• 8afe72d README: change back to listing fuse.mergerfs for fstab fstype
• a93bd9f freebsd: misc cleanups to get freebsd compiling
• 139e61e nfsopenhack: remove empty file check
• 93218a3 NFS open/creat hack
• 3ec137c policy: add "most shared path" policies
• 3a67384 Fix typos
• 468d420 Removed duplicated include
• 08d267f moveonenospc: enhance the feature to allow using a policy
• c4a85f5 readdir: add dirent index array
• c099064 remove unnecessary libfuse flags nopath, nullpath_ok, and utime_omit_ok
• 6289956 temporary fix for short readdirs on NFS
• d699a97 fix rpm spec and chmod in deb
• 8ed3a1f debian: fix installing of fresh deb
• b4397f7 add 'inodecalc' option to allow selection of inode calculation algo
• dbdd3e2 additional readdir refactor cleanup
• afb07b1 add Cirrus-CI
• 54c41c4 rework config management
• a0c1c1a Travis-CI: add installing of deb package
• add588f README: add terminology section and tweak some things
• eb78c51 README: update support section
• c6bce81 fix install location and setuid setting in deb pkgs
• aad2257 README.md: add human readable versions of some errno references
• eff15c7 README.md: request users update to latest version before they submit report
• 7c37a69 add basic setup section
• 698c414 fix getdent name length calculation
• 0888ee1 README: update a number of sections and fix typos
• 8ba1aba README: add note regarding space calculations
• 3a46ec9 fix filename hashing error
• 9b2634a fix name length calculation for musc
• 62873d2 use getdents64 on linux
• d119807 restructure readdir, add readdir_plus