PACKAGE_NAME="ovirt-engine" PACKAGE_VERSION="3.6.2.6" PACKAGE_DISPLAY_VERSION="3.6.2.6-1.el6" OPERATING SYSTEM="CentOS 6.7" Its been running error-free for over 3 years now. Over the past few weeks, the Ovirt manager application has been frequently losing connection with its own database residing on the same server. It is throwing up errors saying: “Caused by org.postgresql.util.PSQLException: FATAL: the database system is in recovery mode”. The only means we have found to recover from this is to hard reboot the server, after which it works fine for a couple of days before throwing up these errors again. Here are some logs : Caused by: org.postgresql.util.PSQLException: FATAL: the database system is in recovery mode at org.postgresql.core.v3.ConnectionFactoryImpl.doAuthentication(ConnectionFactoryImpl.java:293) at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:108) at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:66) at org.postgresql.jdbc2.AbstractJdbc2Connection.<init>(AbstractJdbc2Connection.java:125) at org.postgresql.jdbc3.AbstractJdbc3Connection.<init>(AbstractJdbc3Connection.java:30) at org.postgresql.jdbc3g.AbstractJdbc3gConnection.<init>(AbstractJdbc3gConnection.java:22) at org.postgresql.jdbc4.AbstractJdbc4Connection.<init>(AbstractJdbc4Connection.java:32) at org.postgresql.jdbc4.Jdbc4Connection.<init>(Jdbc4Connection.java:24) at org.postgresql.Driver.makeConnection(Driver.java:393) at org.postgresql.Driver.connect(Driver.java:267) at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.createLocalManagedConnection(LocalManagedConnectionFactory.java:322)