Retain 2.6.2 on Linux
Customer was getting email alerts of Retain errors that read, "com.gwava.archive.exceptions.RetainWorkerException: com.gwava.archive.exceptions.RetainWorkerFatalException: loginAsAnyUser"
Upon looking at the further down at the message, there was a line that read, Caused by: com.sun.xml.ws.client.ClientTransportException: HTTP transport error: java.net.UnknownHostException: [customer's DNS host name].
Customer only had one DNS server configured and it had crashed. He configured a second one and pointed the Retain server to both DNS servers so this wouldn't happen in the future. After doing so, the Retain jobs were able to run and the errors stopped occurring.
This article was originally published in the GWAVA knowledgebase as article ID 2177.