使用svnsync遭遇 “Failed to get lock on……”

今天利用svnsync备份SVN库时,出现这样的错误:

Failed to get lock on destination repos, currently held by ‘dev:c4c6dad8-6ec0-2b
4a-b39e-fa35743224a2′
Failed to get lock on destination repos, currently held by ‘dev:c4c6dad8-6ec0-2b
4a-b39e-fa35743224a2′
Failed to get lock on destination repos, currently held by ‘dev:c4c6dad8-6ec0-2b
4a-b39e-fa35743224a2′
Failed to get lock on destination repos, currently held by ‘dev:c4c6dad8-6ec0-2b
4a-b39e-fa35743224a2′
Failed to get lock on destination repos, currently held by ‘dev:c4c6dad8-6ec0-2b
4a-b39e-fa35743224a2′
Failed to get lock on destination repos, currently held by ‘dev:c4c6dad8-6ec0-2b
4a-b39e-fa35743224a2′
Failed to get lock on destination repos, currently held by ‘dev:c4c6dad8-6ec0-2b
4a-b39e-fa35743224a2′
Failed to get lock on destination repos, currently held by ‘dev:c4c6dad8-6ec0-2b
4a-b39e-fa35743224a2′
Failed to get lock on destination repos, currently held by ‘dev:c4c6dad8-6ec0-2b
4a-b39e-fa35743224a2′
Failed to get lock on destination repos, currently held by ‘dev:c4c6dad8-6ec0-2b
4a-b39e-fa35743224a2′
svnsync: Couldn’t get lock on destination repos after 10 attempts

解决这个问题的思路是,删除SVN仓库修订号0 svn:sync-lock的保护.

svn propdel svn:sync-lock --revprop -r 0 http://some.domain.com/svn/projects