Mercurial > hgsubversion
view tests/fixtures/copybeforeclose.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Unfortunately, your metadata will be out of date after doing so.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 | 1b9d004a8c0a |
| children |
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SVN-fs-dump-format-version: 2 UUID: 1e1f7d3f-4361-4205-84f8-c0d471d161d2 Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2009-06-11T15:51:46.768965Z 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 2009-06-11T15:51:47.134555Z 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 2009-06-11T15:51:48.129578Z PROPS-END Node-path: trunk/a Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 2 Text-content-md5: 60b725f10c9c85c70d97880dfe8191b3 Content-length: 12 PROPS-END a Revision-number: 3 Prop-content-length: 104 Content-length: 104 K 7 svn:log V 7 Branch. K 10 svn:author V 3 djc K 8 svn:date V 27 2009-06-11T15:51:51.120532Z PROPS-END Node-path: branches/test Node-kind: dir Node-action: add Node-copyfrom-rev: 2 Node-copyfrom-path: trunk Revision-number: 4 Prop-content-length: 113 Content-length: 113 K 7 svn:log V 15 Move on branch. K 10 svn:author V 3 djc K 8 svn:date V 27 2009-06-11T15:51:54.124503Z PROPS-END Node-path: branches/test/b Node-kind: file Node-action: add Node-copyfrom-rev: 3 Node-copyfrom-path: branches/test/a Text-copy-source-md5: 60b725f10c9c85c70d97880dfe8191b3 Node-path: branches/test/a Node-action: delete Revision-number: 5 Prop-content-length: 111 Content-length: 111 K 7 svn:log V 13 Close branch. K 10 svn:author V 3 djc K 8 svn:date V 27 2009-06-11T15:51:57.130547Z PROPS-END Node-path: branches/test Node-action: delete