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Fixes: #15.
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Allow the user to customize the cache regular and minimum clean intervals
as flags via the new cache_clean_interval and cache_min_clean_interval
options.
While doing this, rename the internal variables and constants to suffix
them with their unit (seconds).
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Allow the user to customize the size of the sshfs cache by adding a new
max_cache_size flag and turning the hardcoded constant into a variable.
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Up to now, the Changelog has essentially been a (manually maintained)
copy of the git commit history. This doesn't seem to have any point
other than following the GNU coding standards. I believe it's much
better to use the Changelog to summarize the release-to-release
changes that are most important for users (as was done in the NEWS
file until now).
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read from stdin to 1024 characters.
Reported by: Mario A. Valdez-Ramirez.
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sshfs-fuse always returned 0 in access(file, X_OK) calls, causing nautilus
to prompt "Do you want to run "login.defs", or display its contents?" for
text files that were not executable.
Reported by: Alkis Georgopoulos
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Accessing directories with many (several thousand) files over sshfs is
slow, because most SFTP server implementations only send a fixed amount
of entries per READDIR command (e.g. OpenSSH SFTP: 100 entries). This
patch implements sending several READDIR commands in parallel, in order
to speed up directory listing in these cases.
An option (sync_readdir) is also added so that users can easily switch
on the old behaviour.
The performance improvement is astonishing. Accessing a directory with
30k files in from a remote server that has a RTT of 15ms via OpenSSH
SFTP:
Synchronous readdir:
$ ./sshfs -o sync_readdir host:/tmp /mnt/temp
$ time "ls" -1 /mnt/temp/test | wc -l
30000
"ls" -1 /mnt/temp/test 0.07s user 0.01s system 1% cpu 6.928 total
Asynchronous readdir:
$ ./sshfs host:/tmp /mnt/temp
$ time "ls" -1 /mnt/temp/test | wc -l
30000
"ls" -1 /mnt/temp/test 0.07s user 0.01s system 12% cpu 0.605 total
Accessing a directory with 100k files shows even more dramatic
improvement:
Synchronous readdir:
$ ./sshfs -o sync_readdir host:/tmp /mnt/temp
$ time "ls" -1 /mnt/temp/test2 | wc -l
100000
"ls" -1 /mnt/temp/test2 0.67s user 1.22s system 0% cpu 3:31.56 total
Asynchronous readdir:
$ ./sshfs host:/tmp /mnt/temp
$ time "ls" -1 /mnt/temp/test2 | wc -l
100000
"ls" -1 /mnt/temp/test2 0.20s user 0.03s system 14% cpu 1.631 total
This can easily be reproduced by creating a directory on a server and
touching a lot of files in it:
$ mkdir /tmp/test
$ cd /tmp/test
$ for i in $(seq 1 30000); do touch $i; done
Signed-off-by: Alexander Neumann <alexander@bumpern.de>
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Reported by Louis-David Mitterrand
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Reported by Ross Lagerwall
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This prevents I/O error being returned after a successful mount if a symlink is
mounted.
Reported by Bart Friederichs
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otherwise, other local users could change the mapping, and gain access
to things they shouldn't
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Add -o slave. This option routes the sftp communication over stdin and stdout,
bypassing SSH and network.
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These options allow you to create a pair of local files, with
username:uid/groupname:gid pairs, one per line. Alternatively, files can
be in standard /etc/passwd / /etc/group format.
The uid/gids are for the remote server, their local counterparts are
looked up with a local getpwnam/getgrnam call. Any stat() calls will
show with the remapped local uid/gid, and any chown() calls will be
remapped back to the remote uid/gid.
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Reported and tested by Vivenzio Pagliari
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Also don't limit the kernel to 64k reads and writes, rather split into
32k sized chunks and send them to the server all at once. This is
more efficient and less demanding from the server.
Reported by Ludovic Courtès. Fix suggested by Niels Möller
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Patch by E. Kuemmerle
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Remove "-oPreferredAuthentications" from ssh options if the
"password_stdin" option is used. Reported by E. Kuemmerle
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Add "-oworkaround=fstat" for SFTP servers which don't support
the FSTAT message.
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Works if the server supports the "hardlink@openssh.com" protocol
extension.
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Reported by Florian Zumbiehl
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This prevents sshfs hanging when the server is rebooted, for example.
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happen in some circumstances (bugzilla.kernel.org #12864).
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file as the mountpoint, i.e. both are directories or both are
non-directories (debian bug #535343). Reported by Greg Kochanski
* Allow mounting a single non-directory from the server
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session (debian bug #535333). This is only supported if compiled
against libfuse-2.6 or later. Reported by Greg Kochanski
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even if the connection to the server can't be established.
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Libfuse also needs to be fixed up. Reported by Kārlis Repsons
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Andre-John Mas * Fix error if username contains a comma character. Reported by Yang Zhang
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