Clustering Jira with Terracotta DSO
Sourcesense has added clustering to Jira using Terracotta DSO and released it under an Open Source license.
Clustering for Jira has been a long requested feature by Atlassian's customers. While Atlassian provides clustering for their enterprise wiki product Confluence they voted for different priorities for their issue tracker.
Jira comes with full source code for its enterprise customers and integrators and it seems to be quite well engineered if a third party could easily add such a low level feature by simply providing a plugin. Another interesting aspect is that Sourcesense chose Terracotta DSO over Oracle's Coherence which is used by Confluence and many other enterprise products in that category. Terracotta allows distributing the plugin under an Open Source licence which Coherence disallows.
The beta plugin is available from the Jira plugin pages.
I wonder what it would take to implement the clustering features of the enterprise edition of Openfire using Terracotta DSO instead of Coherence ;)