There does not appar to be anything wrong with the particular issues mentioned in the log.
2014-03-17 16:01:28,680 http-bio-8443-exec-306 INFO anonymous 961x67654x1 - 172.21.0.1 /rpc/soap/jirasoapservice-v2 [renderer.wiki.links.JiraIssueLink] Unable to resolve an issue with key: HF-2070
2014-03-17 16:01:28,682 http-bio-8443-exec-306 INFO anonymous 961x67654x1 - 172.21.0.1 /rpc/soap/jirasoapservice-v2 [renderer.wiki.links.JiraIssueLink] Unable to resolve an issue with key: HF-1401
2014-03-17 16:01:28,682 http-bio-8443-exec-306 INFO anonymous 961x67654x1 - 172.21.0.1 /rpc/soap/jirasoapservice-v2 [renderer.wiki.links.JiraIssueLink] Unable to resolve an issue with key: HF-1401
2014-03-17 16:01:43,946 http-bio-8443-exec-380 INFO anonymous 961x67668x1 - 172.21.0.1 /rpc/soap/jirasoapservice-v2 [renderer.wiki.links.JiraIssueLink] Unable to resolve an issue with key: HF-2070
2014-03-17 16:01:43,947 http-bio-8443-exec-380 INFO anonymous 961x67668x1 - 172.21.0.1 /rpc/soap/jirasoapservice-v2 [renderer.wiki.links.JiraIssueLink] Unable to resolve an issue with key: HF-1401
2014-03-17 16:01:43,948 http-bio-8443-exec-380 INFO anonymous 961x67668x1 - 172.21.0.1 /rpc/soap/jirasoapservice-v2 [renderer.wiki.links.JiraIssueLink] Unable to resolve an issue with key: HF-1401