Unable to Access Confluence Plugin Repository Client
症状
The plugin repository is inaccessible. The following appears in the atlassian-confluence.log:
2010-02-17 12:09:46,951 WARN [http-8080-5] [getaheadplugin.dwr.impl.ExecuteQuery] warn Method execution failed:
-- referer: http://<confluence url>:8080/admin/plugin-repository/plugins.action | url: /plugins/servlet/plugin-repository/dwr/exec/RepositoryDWR.startCaching.dwr | userName: admin
com.atlassian.plugin.repository.model.RepositoryException: Error downloading: http://confluence.atlassian.com/plugin-repository/proxy.action?profile=confluence&decorator=none&buildNumber=1724&repoClientVer=2.1.6&os=x86&javaVer=1.6.0_10&javaVendor=Sun+Microsystems+Inc.
Unrecognized SSL message, plaintext connection?
at com.atlassian.plugin.repository.datasource.ProxyDataSource.getData(ProxyDataSource.java:192)
at com.atlassian.plugin.repository.datasource.ProxyDataSource.startCaching(ProxyDataSource.java:312)
Sometimes there will also be a connection timeout accompanied by an 'Error downloading' message in the browser:
Error downloading: http://confluence.atlassian.com/plugin-repository/proxy.action?profile=confluence&decorator=none&buildNumber=1724&repoClientVer=2.1.6&os=amd64&javaVer=1.6.0_14&javaVendor=BEA+Systems%2C+Inc.
原因
The plugin repository client in Confluence downloads an XML file from http://confluence.atlassian.com. If the outgoing proxy of the server where Confluence is installed not allowed to download from that url, then the plugin repository client will produce a time out error.
診断
Try accessing the plugin repository destination directly using a browser from the same server where Confluence is installed.
A successful connection will result in a redirection to https://plugins.atlassian.com and an XML content returned.
ソリューション
If the test failed, see Configuring Web Proxy Support for Confluence for instructions on how to set up confluence to use a proxy to access the internet. Further configurations and a patch may be required as per APR-160.