Mercurial > hgsubversion
view tests/fixtures/siblingbranchfix.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Unfortunately, your metadata will be out of date after doing so.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 | 41c333473dda |
| children |
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SVN-fs-dump-format-version: 2 UUID: 380991ed-036e-45db-832e-7a8ca661c4f0 Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2009-09-19T07:20:51.801386Z PROPS-END Revision-number: 1 Prop-content-length: 100 Content-length: 100 K 7 svn:log V 3 btt K 10 svn:author V 3 djc K 8 svn:date V 27 2009-09-19T07:20:52.057610Z PROPS-END Node-path: branches Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: tags 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 Revision-number: 2 Prop-content-length: 106 Content-length: 106 K 7 svn:log V 9 Add file. K 10 svn:author V 3 djc K 8 svn:date V 27 2009-09-19T07:20:53.056417Z PROPS-END Node-path: trunk/a Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 2 Text-content-md5: 60b725f10c9c85c70d97880dfe8191b3 Text-content-sha1: 3f786850e387550fdab836ed7e6dc881de23001b Content-length: 12 PROPS-END a Revision-number: 3 Prop-content-length: 122 Content-length: 122 K 7 svn:log V 24 Branch to repo root dir. K 10 svn:author V 3 djc K 8 svn:date V 27 2009-09-19T07:20:56.043593Z PROPS-END Node-path: wrongbranch Node-kind: dir Node-action: add Node-copyfrom-rev: 2 Node-copyfrom-path: trunk Revision-number: 4 Prop-content-length: 138 Content-length: 138 K 7 svn:log V 40 Move branch to correct branches location K 10 svn:author V 3 djc K 8 svn:date V 27 2009-09-19T07:20:59.045512Z PROPS-END Node-path: branches/wrongbranch Node-kind: dir Node-action: add Node-copyfrom-rev: 3 Node-copyfrom-path: wrongbranch Node-path: wrongbranch Node-action: delete