Changes between Version 75 and Version 76 of FAQ

Timestamp:

2012-08-07T19:10:23Z (12 years ago)

Author:

thequux

Comment:

Question 15 accidentally an entire word.

FAQ

@@ -107 +107 @@
 '''[=#Q15_same_file_same_cap Q15:] If upload the same file again and again, Tahoe-LAFS will return the same capability. How does Tahoe-LAFS identify that the client is same, when I upload files mutiple times, is it based on node ID?'''
 
-A: For immutable files this is true—the resulting capability will be the same each time you upload the same file contents.  The capability is derived from two pieces of information:  The content of the file and the "convergence secret".  By default, the convergence secret is randomly generated by the node when it first starts up, then stored and re-used after that.  So the same file content uploaded from the same node will always have the same cap string.  Uploading the file from a different node with a different convergence secret would result in a different cap string—and in a second copy of the file's contents stored on the grid. If you files you upload to converge (also known as "deduplicate") with files uploaded by someone else, just make sure you're using the same convergence secret as they are.
+A: For immutable files this is true—the resulting capability will be the same each time you upload the same file contents.  The capability is derived from two pieces of information:  The content of the file and the "convergence secret".  By default, the convergence secret is randomly generated by the node when it first starts up, then stored and re-used after that.  So the same file content uploaded from the same node will always have the same cap string.  Uploading the file from a different node with a different convergence secret would result in a different cap string—and in a second copy of the file's contents stored on the grid. If you want files you upload to converge (also known as "deduplicate") with files uploaded by someone else, just make sure you're using the same convergence secret as they are.
 
 '''[=#Q16_move_node_to_different_machine Q16:] If I move the client node base directory to different machine and start the client there, will the node have the same node ID as on the previous machine?'''