satellite-sync throws the error ORA-03114: not connected to ORACLE

Issue

• When running satellite-sync it throws the error ORA-03114: not connected to ORACLE

Exception Handler Information
Traceback (most recent call last):
  File "/usr/bin/satellite-sync", line 139, in main
    return satsync.Runner().main()
  File "/usr/lib/python2.6/site-packages/spacewalk/satellite_tools/satsync.py", line 229, in main
    ret = method()
  File "/usr/lib/python2.6/site-packages/spacewalk/satellite_tools/satsync.py", line 343, in _step_packages
    self._affected_channels = self.syncer.import_packages()
  File "/usr/lib/python2.6/site-packages/spacewalk/satellite_tools/satsync.py", line 1602, in import_packages
    [sources])
  File "/usr/lib/python2.6/site-packages/spacewalk/satellite_tools/satsync.py", line 1576, in _proces_batch
    prompt, nevermorethan, process_function_args)
  File "/usr/lib/python2.6/site-packages/spacewalk/satellite_tools/satsync.py", line 1556, in _processWithProgressBar
    process_function(chunk, *process_function_args)
  File "/usr/lib/python2.6/site-packages/spacewalk/satellite_tools/satsync.py", line 1583, in _import_packages_process
    sync_handlers.import_packages(batch, sources)
  File "/usr/lib/python2.6/site-packages/spacewalk/satellite_tools/sync_handlers.py", line 385, in import_packages
    importer.run()
  File "/usr/lib/python2.6/site-packages/spacewalk/server/importlib/importLib.py", line 646, in run
    self.fix()
  File "/usr/lib/python2.6/site-packages/spacewalk/server/importlib/packageImport.py", line 292, in fix
    self.backend.rollback()
  File "/usr/lib/python2.6/site-packages/spacewalk/server/importlib/backend.py", line 1473, in rollback
    self.dbmodule.rollback()
  File "/usr/lib/python2.6/site-packages/spacewalk/server/rhnSQL/__init__.py", line 186, in rollback
    return db.rollback(name)
  File "/usr/lib/python2.6/site-packages/spacewalk/server/rhnSQL/driver_cx_Oracle.py", line 507, in rollback
    return self.dbh.rollback()
OperationalError: ORA-03114: not connected to ORACLE

• Client systems registered to satellite are not getting latest updates.

From taskomatic logs we can see below error :

INFO   | jvm 1    | 2017/04/23 22:21:32 | Caused by: 
INFO   | jvm 1    | 2017/04/23 22:21:32 | java.lang.reflect.InvocationTargetException
INFO   | jvm 1    | 2017/04/23 22:21:32 |   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
INFO   | jvm 1    | 2017/04/23 22:21:32 |   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:95)
INFO   | jvm 1    | 2017/04/23 22:21:32 |   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:56)
INFO   | jvm 1    | 2017/04/23 22:21:32 |   at java.lang.reflect.Method.invoke(Method.java:620)
INFO   | jvm 1    | 2017/04/23 22:21:32 |   at org.quartz.impl.jdbcjobstore.AttributeRestoringConnectionInvocationHandler.invoke(AttributeRestoringConnectionInvocationHandler.java:71)
INFO   | jvm 1    | 2017/04/23 22:21:32 |   ... 7 more
INFO   | jvm 1    | 2017/04/23 22:21:32 | Caused by: 
INFO   | jvm 1    | 2017/04/23 22:21:32 | java.sql.SQLException: ORA-03114: not connected to ORACLE
INFO   | jvm 1    | 2017/04/23 22:21:32 | 
INFO   | jvm 1    | 2017/04/23 22:21:32 |   at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
INFO   | jvm 1    | 2017/04/23 22:21:32 |   at oracle.jdbc.driver.T2CConnection.checkError(T2CConnection.java:676)
INFO   | jvm 1    | 2017/04/23 22:21:32 |   at oracle.jdbc.driver.T2CConnection.checkError(T2CConnection.java:602)
INFO   | jvm 1    | 2017/04/23 22:21:32 |   at oracle.jdbc.driver.T2CConnection.doRollback(T2CConnection.java:489)
INFO   | jvm 1    | 2017/04/23 22:21:32 |   at oracle.jdbc.driver.PhysicalConnection.rollback(PhysicalConnection.java:1189)
INFO   | jvm 1    | 2017/04/23 22:21:32 |   at org.apache.commons.dbcp.DelegatingConnection.rollback(DelegatingConnection.java:273)
INFO   | jvm 1    | 2017/04/23 22:21:32 |   at org.apache.commons.dbcp.PoolingDataSource$PoolGuardConnectionWrapper.rollback(PoolingDataSource.java:288)