There would have option to preserve the svn history log while importing repository or svn check out the repository.
As we need to move current svn repository server to Atlassian (On Demand) - Fish eye repository But, not able to find any interface which can allows to preserve the SVN LOG history.
Plugin Details:
Version: 5.2.2
Developer: Atlassian Software Systems
Plugin key: com.atlassian.jirafisheyeplugin
Provides OnDemand-specific capabilities to the original JIRA FishEye plugin.
Version: 0.4
Developer: Atlassian
Plugin key: com.atlassian.ondemand.backupmanager.on