Mercurial > hgsubversion
view tests/fixtures/branchtagcollision.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Unfortunately, your metadata will be out of date after doing so.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 | f28e0f54a6ef |
| children |
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SVN-fs-dump-format-version: 2 UUID: 764a21f0-1c44-4bc9-b81b-0321cc58934d Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2011-05-24T15:46:13.951233Z PROPS-END Revision-number: 1 Prop-content-length: 114 Content-length: 114 K 7 svn:log V 14 Initial commit K 10 svn:author V 5 augie K 8 svn:date V 27 2011-05-24T15:46:14.518711Z 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: 111 Content-length: 111 K 7 svn:log V 11 Added fileA K 10 svn:author V 5 augie K 8 svn:date V 27 2011-05-24T15:46:14.922304Z PROPS-END Node-path: trunk/fileA Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 6 Text-content-md5: 017715e60b9a9450d604e0d489ebc83a Text-content-sha1: d0bcb0015aaadb5317419294648c8da6714af81f Content-length: 16 PROPS-END fileA Revision-number: 3 Prop-content-length: 112 Content-length: 112 K 7 svn:log V 12 added branch K 10 svn:author V 5 augie K 8 svn:date V 27 2011-05-24T15:46:15.328642Z PROPS-END Node-path: branches/A Node-kind: dir Node-action: add Node-copyfrom-rev: 1 Node-copyfrom-path: trunk Node-path: branches/A/fileA Node-kind: file Node-action: add Node-copyfrom-rev: 2 Node-copyfrom-path: trunk/fileA Text-copy-source-md5: 017715e60b9a9450d604e0d489ebc83a Text-copy-source-sha1: d0bcb0015aaadb5317419294648c8da6714af81f Revision-number: 4 Prop-content-length: 111 Content-length: 111 K 7 svn:log V 11 Added fileB K 10 svn:author V 5 augie K 8 svn:date V 27 2011-05-24T15:46:15.616098Z PROPS-END Node-path: trunk/fileB Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 6 Text-content-md5: 4eb63bbdec5dfa425e3735dc1d4c5ee8 Text-content-sha1: 03939175ceac92b9c6464d037a0243e22563c423 Content-length: 16 PROPS-END fileB Revision-number: 5 Prop-content-length: 113 Content-length: 113 K 7 svn:log V 13 added bad tag K 10 svn:author V 5 augie K 8 svn:date V 27 2011-05-24T15:46:16.057440Z PROPS-END Node-path: tags/A Node-kind: dir Node-action: add Node-copyfrom-rev: 1 Node-copyfrom-path: trunk Node-path: tags/A/fileA Node-kind: file Node-action: add Node-copyfrom-rev: 2 Node-copyfrom-path: trunk/fileA Text-copy-source-md5: 017715e60b9a9450d604e0d489ebc83a Text-copy-source-sha1: d0bcb0015aaadb5317419294648c8da6714af81f Node-path: tags/A/fileB Node-kind: file Node-action: add Node-copyfrom-rev: 4 Node-copyfrom-path: trunk/fileB Text-copy-source-md5: 4eb63bbdec5dfa425e3735dc1d4c5ee8 Text-copy-source-sha1: 03939175ceac92b9c6464d037a0243e22563c423