问题
My repository is 2.5G. A dump via svnadmin dump myrepos > dumpfile is 5G. But when I do a dump like
svnadmin dump myrepos -r 23785 > rev-23785.dumpfile where 23785 is the youngest revision the dump goes beyond 15G and at that point I stop the dump.
When requesting a dump for just the one revision, why is the result far larger than the entire dump?
回答1:
This page explains: http://linuxtopia.org/online_books/programming_tool_guides/version_control_with_subversion/svn.reposadmin.maint_8.html
"To ensure that the output of each execution of svnadmin dump is self-sufficient, the first dumped revision is by default a full representation of every directory, file, and property in that revision of the repository.
However, you can change this default behavior. If you add the --incremental option"
来源：https://stackoverflow.com/questions/8062691/why-is-a-svn-dump-of-a-single-revision-larger-than-a-full-dump