Description of problem: When you try to add 4.1.3 host to 4.1.2 engine the host deploy finishes successfully, but then engine reports "lost connection" and sets host as "non responsive" while in fact the is no network issue there. Version-Release number of selected component (if applicable): Engine uses vdsm-jsonrpc-java 1.3.13 How reproducible: Always Steps to Reproduce: 1. Install 4.1.2 engine. 2. Add 4.1.3 host. Actual results: Lost connection reported, host is not operational. Expected results: Host connected and working fine. Additional info: The following is in engine log: 2017-06-06 16:41:17,975-04 ERROR [org.ovirt.engine.core.vdsbroker.monitoring.HostMonitoring] (DefaultQuartzScheduler3) [] Failure to refresh host 'HOST1' runtime info: org/apache/commons/lang/StringUtils 2017-06-06 16:41:17,975-04 ERROR [org.ovirt.engine.core.utils.timer.SchedulerUtilQuartzImpl] (DefaultQuartzScheduler3) [] Failed to invoke scheduled method onTimer: null 2017-06-06 16:41:19,283-04 ERROR [org.ovirt.engine.core.vdsbroker.monitoring.HostMonitoring] (DefaultQuartzScheduler1) [] Failure to refresh host 'HOST2' runtime info: org/apache/commons/lang/StringUtils 2017-06-06 16:41:19,284-04 ERROR [org.ovirt.engine.core.utils.timer.SchedulerUtilQuartzImpl] (DefaultQuartzScheduler1) [] Failed to invoke scheduled method onTimer: null 2017-06-06 16:41:20,979-04 ERROR [org.ovirt.engine.core.vdsbroker.monitoring.HostMonitoring] (DefaultQuartzScheduler7) [] Failure to refresh host 'HOST1' runtime info: org/apache/commons/lang/StringUtils 2017-06-06 16:41:20,979-04 ERROR [org.ovirt.engine.core.utils.timer.SchedulerUtilQuartzImpl] (DefaultQuartzScheduler7) [] Failed to invoke scheduled method onTimer: null 2017-06-06 16:41:22,288-04 ERROR [org.ovirt.engine.core.vdsbroker.monitoring.HostMonitoring] (DefaultQuartzScheduler4) [] Failure to refresh host 'HOST2' runtime info: org/apache/commons/lang/StringUtils 2017-06-06 16:41:22,288-04 ERROR [org.ovirt.engine.core.utils.timer.SchedulerUtilQuartzImpl] (DefaultQuartzScheduler4) [] Failed to invoke scheduled method onTimer: null
Verified with vdsm-4.19.18-1.el7ev