Changes between Version 93 and Version 94 of SftpFrontend


Ignore:
Timestamp:
2017-02-05T12:14:32Z (8 years ago)
Author:
daira
Comment:

Delete text about old bugs that are not relevant for Tahoe 1.10.0+

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  • SftpFrontend

    v93 v94  
    11The SFTP frontend is a server that optionally runs as part of a gateway node, and provides read/write access to the Tahoe grid via the [http://en.wikipedia.org/wiki/SSH_file_transfer_protocol SSH File Transfer Protocol].
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    3 See [http://tahoe-lafs.org/trac/tahoe-lafs/browser/docs/frontends/FTP-and-SFTP.rst docs/frontends/FTP-and-SFTP.rst (.txt in releases before v1.8.1)] for how to enable and set up the SFTP frontend on a gateway. This page is for compatibility issues with particular SFTP clients, and assumes that you are using Tahoe-LAFS v1.7.0 or later. Please add any more issues that you discover.
     3See [http://tahoe-lafs.org/trac/tahoe-lafs/browser/docs/frontends/FTP-and-SFTP.rst docs/frontends/FTP-and-SFTP.rst for how to enable and set up the SFTP frontend on a gateway. This page is for compatibility issues with particular SFTP clients, and assumes that you are using Tahoe-LAFS v1.10.0 or later. (We do not recommend that you use SFTP with earlier versions of Tahoe.) Please add any more issues that you discover.
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    2929The '{{{ctime}}}' and '{{{mtime}}}' attributes will always be the same, and are set from the Tahoe {{{linkmotime}}} timestamp, which is changed only when the link from the parent directory is modified (see the [http://tahoe-lafs.org/trac/tahoe-lafs/browser/docs/frontends/webapi.rst#about-the-metadata 'About the metadata' section of webapi.rst]). These fields are not updated when the contents of a mutable file are changed. The SFTP protocol and the server are able to represent dates up to the year 2106, but some clients may print dates after 2037 incorrectly.
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    31 Versions of Twisted before v11.0 have [http://twistedmatrix.com/trac/ticket/4395 a bug in support for rekeying]. Tahoe-LAFS v1.10.0 requires a later version of Twisted and so will not be affected by this problem. For earlier versions of Tahoe-LAFS, it is recommended to install a version of Twisted between v11.0 and v12.2 inclusive (and use {{{tahoe --version}}} to check that it is being used); otherwise, this bug might cause a hang or 100% CPU usage by the gateway when a client tries to rekey. Depending on the client, rekeying may be triggered based on a time interval or the amount of data sent (for example, 1 GiB to 4 GiB for the openssh client), so this problem may not happen immediately when testing.
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    33 Version v12.3 of Twisted is incompatible with the SFTP frontend (#1926, #1525). Upgrade to Tahoe-LAFS v1.10.0 to fix this problem.
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    7167A POSIX application might assume that deleting a non-empty directory will fail, when it does not on a Tahoe filesystem (#1362).
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    73 To avoid potential bugs with rekeying, check that the version of Twisted shown by {{{tahoe --version-and-path}}} is at least 11.0. If not, install a more recent version of Twisted. This will not be an issue for Tahoe-LAFS v1.10 or later.
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    7569To unmount an sshfs filesystem, make sure you are in the {{{fuse}}} group (if necessary use "{{{sudo adduser `whoami` fuse}}}"), and then do "{{{fusermount -u mountpoint}}}".