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Kind Attachment Name Size Version Date Modified Author Change note
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john_doe.png 46.6 kB 1 09-Oct-2016 18:14 Ben Spink
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replication.png 107.6 kB 2 09-Oct-2016 18:14 Ben Spink
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user_homes.png 46.8 kB 1 09-Oct-2016 18:14 Ben Spink
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vfs_properties.png 38.9 kB 1 09-Oct-2016 18:14 Ben Spink

This page (revision-9) was last changed on 03-Aug-2017 11:17 by Ben Spink

This page was created on 09-Oct-2016 18:14 by Ben Spink

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File based replication can be configured between CrushFTP servers. CrushFTP uses a journaled file transfer system to make sure data changed on one server is changed the same way on both servers. Conflict scenarios should be very rare and difficult to achieve. However, we do not recommend the journaled system as the first choice method if you have a shared storage option available between servers. The journaled system should be the secondary choice when its necessary due to geographically distributed servers. The journaling and replication can *only* account for changes being made through CrushFTP. No outside processes can modify files, write to files, rename files, etc. All access needs to go through CrushFTP, or your journaled system will be out of sync requiring manual intervention to try and correct things.\\
!!Background\\
File based replication can be configured between CrushFTP servers. CrushFTP uses a journaled file transfer system to make sure data changed on one server is changed the same way on both servers. Conflict scenarios should be very rare and difficult to achieve. However, we do not recommend the journaled system as the first choice method if you have a shared storage option available between servers. The journaled system should be the secondary choice when its necessary due to geographically distributed servers. The journaling and replication can *only* account for changes being made through CrushFTP. No outside processes can modify files, write to files, rename files, etc. All access needs to go through CrushFTP, or your journaled system will be out of sync requiring manual intervention to try and correct things. Replication requires an enterprise level license, it is not available in normal licenses.\\
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Replication requires an enterprise level license, it is not available in normal licenses. Go to your preferences, Replication tab.
[attachments|replication.png]
!!Preferences
Go to your preferences, Replication tab.\\
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[attachments|replication.png]\\
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!!User Manager
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Now its time to configure the User Manager.\\
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We need the replication user created, giving them access to the base folder, with full access, and *without* the replication checkbox enabled. That is critical. If its enabled, it would create a circular loop.\\
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[attachments|user_homes.png]\\
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Next we need to give a user access to a folder inside that user_homes area...\\
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[attachments|vfs_properties.png]\\
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...and on their folder, enable the replication checkbox.\\
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[attachments|john_doe.png]\\
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!!How it Works
Changes that john doe makes to their folder are now replicated to the server configured replication server.
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When a file is being transferred, CrushFTP is keeping a copy of the data in a folder structure called "multi_journal" located in your crush folder. An entire copy of any file being uploaded is temporarily kept here, and purged the moment its successfully transferred.\\
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!!Troubleshooting
If the opposite server goes offline, this folder will start to fill up with uploads that are pending to be delivered to the opposite server. If there is a conflict scenario where a replicated action cannot be performed on the opposite server, you will have to manually look through this folder, sorted by date, and decide what to do with the replication item that cannot be processed.\\
Version Date Modified Size Author Changes ... Change note
9 03-Aug-2017 11:17 4.005 kB Ben Spink to previous
8 19-Oct-2016 19:12 3.91 kB Ben Spink to previous | to last
7 09-Oct-2016 18:14 3.33 kB Ben Spink to previous | to last
6 09-Oct-2016 18:14 3.332 kB Ben Spink to previous | to last
5 09-Oct-2016 18:14 3.334 kB Ben Spink to previous | to last
4 09-Oct-2016 18:14 1.931 kB Ben Spink to previous | to last
3 09-Oct-2016 18:14 0.863 kB Ben Spink to previous | to last
2 09-Oct-2016 18:14 0.83 kB Ben Spink to previous | to last
1 09-Oct-2016 18:14 0.068 kB Ben Spink to last
« This page (revision-9) was last changed on 03-Aug-2017 11:17 by Ben Spink
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