Mercurial > hgsubversion
view tests/fixtures/replace_trunk_with_branch.svndump @ 890:78db88de9622
Partial metadata rebuilding
For highly active subversion repositories, it can be excruciatingly
slow to pull updates one at a time from subversion. One way around
this is to setup another mercurial repo that pulls new commits from
svn periodicly (say every 5 minutes). When you want to update your
repository, you can pull commits from this mercurial repository via
native mercurial protocols, which will be much faster than pulling
directly from svn.
Unfortunately, your metadata will be out of date after doing so.
Highly active repositories also tend to be very large, which means
that it takes a long time to rebuild your metadata from scratch. To
address this, this adds support to do a partial rebuild on the
metadata by processing only revisions that have been added to the
repository after the last revision we processed.
With the rev map 1k revisions (~2 days) behind tip updatemeta is
dramatically faster than rebuild meta:
$ hg --time svn updatemeta
Time: real 0.570 secs (user 0.480+0.000 sys 0.060+0.000)
$ hg --time svn rebuildmeta
Time: real 129.160 secs (user 128.570+0.000 sys 0.320+0.000)
| author | David Schleimer <dschleimer@fb.com> |
|---|---|
| date | Sat, 12 May 2012 07:28:23 -0700 |
| parents | 22162380c4b9 |
| children |
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SVN-fs-dump-format-version: 2 UUID: 5b65bade-98f3-4993-a01f-b7a6710da339 Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2008-12-16T16:37:53.651472Z PROPS-END Revision-number: 1 Prop-content-length: 106 Content-length: 106 K 7 svn:log V 7 initial K 10 svn:author V 5 Augie K 8 svn:date V 27 2008-12-16T16:37:54.139835Z PROPS-END Node-path: branches Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: trunk Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: trunk/alpha Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 6 Text-content-md5: 9f9f90dbe3e5ee1218c86b8839db1995 Content-length: 16 PROPS-END alpha Node-path: trunk/beta Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 5 Text-content-md5: f0cf2a92516045024a0c99147b28f05b Content-length: 15 PROPS-END beta Node-path: trunk/gamma Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 6 Text-content-md5: 303febb9068384eca46b5b6516843b35 Content-length: 16 PROPS-END gamma Revision-number: 2 Prop-content-length: 105 Content-length: 105 K 7 svn:log V 6 branch K 10 svn:author V 5 Augie K 8 svn:date V 27 2008-12-16T16:37:57.116844Z PROPS-END Node-path: branches/test Node-kind: dir Node-action: add Node-copyfrom-rev: 1 Node-copyfrom-path: trunk Revision-number: 3 Prop-content-length: 103 Content-length: 103 K 7 svn:log V 4 Mod. K 10 svn:author V 5 Augie K 8 svn:date V 27 2008-12-16T16:37:59.118952Z PROPS-END Node-path: branches/test/alpha Node-kind: file Node-action: change Text-content-length: 10 Text-content-md5: 54add8695a828f4e66224b1ecfd9c576 Content-length: 10 alpha foo Revision-number: 4 Prop-content-length: 102 Content-length: 102 K 7 svn:log V 4 blah K 10 svn:author V 4 evil K 8 svn:date V 27 2008-12-16T16:38:00.236345Z PROPS-END Node-path: trunk Node-kind: dir Node-action: delete Node-path: trunk Node-kind: dir Node-action: add Node-copyfrom-rev: 3 Node-copyfrom-path: branches/test