diff --git a/gpMgmt/bin/gppylib/commands/gp.py b/gpMgmt/bin/gppylib/commands/gp.py
index 981b554a1adeee54b2015b5c2a3e39c165120a6f..520873bc1643d45d87b25a8bd6cb664de3bc3a9f 100644
--- a/gpMgmt/bin/gppylib/commands/gp.py
+++ b/gpMgmt/bin/gppylib/commands/gp.py
@@ -704,22 +704,6 @@ class GpStandbyStart(MasterStart, object):
         cmd.run(validateAfter=True)
         return cmd
 
-#-----------------------------------------------
-class GpInitSystem(Command):
-    def __init__(self,name,configFile,hostsFile, ctxt=LOCAL, remoteHost=None):
-        self.configFile=configFile
-        self.hostsFile=hostsFile
-        self.cmdStr="$GPHOME/bin/gpinitsystem -a -c %s -h %s" % (configFile,hostsFile)
-        Command.__init__(self, name, self.cmdStr, ctxt, remoteHost)
-
-#-----------------------------------------------
-class GpDeleteSystem(Command):
-    def __init__(self,name,datadir, ctxt=LOCAL, remoteHost=None):
-        self.datadir=datadir
-        self.input="y\ny\n"
-        self.cmdStr="$GPHOME/bin/gpdeletesystem -d %s -f " % (datadir)
-        Command.__init__(self, name, self.cmdStr, ctxt, remoteHost,stdin=self.input)
-
 #-----------------------------------------------
 class GpStart(Command):
     def __init__(self, name, masterOnly=False, restricted=False, verbose=False,ctxt=LOCAL, remoteHost=None):
@@ -812,39 +796,6 @@ class GpStop(Command):
         cmd.run(validateAfter=True)
         return cmd
 
-#-----------------------------------------------
-class GpRecoverseg(Command):
-    def __init__(self, name, ctxt=LOCAL, remoteHost=None):
-        self.cmdStr = "$GPHOME/bin/gprecoverseg -a"
-        Command.__init__(self, name, self.cmdStr, ctxt, remoteHost)
-
-#-----------------------------------------------
-class Psql(Command):
-    def __init__(self, name, query=None, filename=None, database='template1', port=None, utilityMode=False, ctxt=LOCAL, remoteHost=None):
-        env = ''
-        if utilityMode:
-            env = 'PGOPTIONS="-c gp_session_role=utility"'
-        cmdStr = '%s $GPHOME/bin/psql ' % env
-        if port is not None:
-            cmdStr += '-p %d ' % port
-        if query is not None and filename is not None:
-            raise Exception('Psql can accept only a query or a filename, not both.')
-        elif query is not None:
-            cmdStr += '-c "%s" ' % query
-        elif filename is not None:
-            cmdStr += '-f %s ' % filename
-        else:
-            raise Exception('Psql must be passed a query or a filename.')
-
-        # shell escape and force double quote of database in case of any funny chars
-        cmdStr += '"%s" ' % shellEscape(database)
-
-        # Need to escape " for REMOTE or it'll interfere with ssh
-        if ctxt == REMOTE:
-             cmdStr = cmdStr.replace('"', '\\"')
-        self.cmdStr=cmdStr
-        Command.__init__(self, name, self.cmdStr, ctxt, remoteHost)
-
 #-----------------------------------------------
 class ModifyPostgresqlConfSetting(Command):
     def __init__(self, name, file, optName, optVal, optType='string', ctxt=LOCAL, remoteHost=None):
@@ -1067,8 +1018,6 @@ class GpAppendGucToFile(Command):
         cmdStr = 'echo "%s=%s" >> %s' %  (guc, finalText, file)
         Command.__init__(self,name,cmdStr,ctxt,remoteHost)
 
-
-#-----------------------------------------------
 class GpLogFilter(Command):
     def __init__(self, name, filename, start=None, end=None, duration=None,
                  case=None, count=None, search_string=None,
@@ -1096,11 +1045,9 @@ class GpLogFilter(Command):
         if trouble:
             cmdfrags.append('-t')
         cmdfrags.append(filename)
-
-        self.cmdStr = "$GPHOME/bin/gplogfilter %s" % ' '.join(cmdfrags)
+         self.cmdStr = "$GPHOME/bin/gplogfilter %s" % ' '.join(cmdfrags)
         Command.__init__(self, name, self.cmdStr, ctxt,remoteHost)
-
-    @staticmethod
+     @staticmethod
     def local(name, filename, start=None, end=None, duration=None,
                case=None, count=None, search_string=None,
                exclude_string=None, search_regex=None, exclude_regex=None,
@@ -1422,63 +1369,6 @@ def read_postmaster_pidfile(datadir, host=None):
     return pid
 
 
-def pausePg(db):
-    """
-    This function will pause an instance of postgres which is part of a GPDB
-
-    1) pause the postmaster (this prevents new connections from being made)
-    2) get list of processes that are descendent from postmaster process
-    3) pause all descendent processes and ignore any failures (a process may have died betwen getting pid list and doing the pauses)
-    4) again, get list of processes that are descendent from postmaster process
-    5) pause all descendent processes and ignore any failures (do not ignore errors, errors are failures, no pids can die between being paused the first time and getting the pid list)
-    """
-
-    datadir = db.getSegmentDataDirectory()
-    content = db.getSegmentContentId()
-    postmasterPID = read_postmaster_pidfile(datadir)
-    if postmasterPID == 0:
-        raise Exception, 'print "could not locate postmasterPID during pause'
-
-    Kill.local(name="pausep "+str(content), pid=postmasterPID, signal="STOP")
-
-    decsendentProcessPids = getDescendentProcesses(postmasterPID)
-
-    for killpid in decsendentProcessPids:
-
-        try:
-            Kill.local(name="pausep "+str(killpid), pid=killpid, signal="STOP")
-        except:
-            pass
-
-    decsendentProcessPids = getDescendentProcesses(postmasterPID)
-
-    for killpid in decsendentProcessPids:
-
-        Kill.local(name="pausep "+str(killpid), pid=killpid, signal="STOP")
-
-
-def resumePg(db):
-    """
-    1) resume the processes descendent from the postmaster process
-    2) resume the postmaster process
-    """
-
-    datadir = db.getSegmentDataDirectory()
-    content = db.getSegmentContentId()
-    postmasterPID = read_postmaster_pidfile(datadir)
-    if postmasterPID == 0:
-        raise Exception, 'print "could not locate postmasterPID during resume'
-
-    decsendentProcessPids = getDescendentProcesses(postmasterPID)
-
-    for killpid in decsendentProcessPids:
-
-        Kill.local(name="pausep "+str(killpid), pid=killpid, signal="CONT")
-
-
-    Kill.local(name="pausep "+str(content), pid=postmasterPID, signal="CONT")
-
-
 def createTempDirectoryName(masterDataDirectory, tempDirPrefix):
     return '%s/%s_%s_%d' % (os.sep.join(os.path.normpath(masterDataDirectory).split(os.sep)[:-1]),
                                 tempDirPrefix,
diff --git a/gpMgmt/bin/gppylib/operations/rebalanceSegments.py b/gpMgmt/bin/gppylib/operations/rebalanceSegments.py
index 62ba5f0578b292f23d9eb656fe9ca68764af6269..dc28f7ae254084c2c0bfbf9bd145358892f32fdb 100644
--- a/gpMgmt/bin/gppylib/operations/rebalanceSegments.py
+++ b/gpMgmt/bin/gppylib/operations/rebalanceSegments.py
@@ -2,7 +2,7 @@ import sys
 import signal
 from gppylib.gparray import GpArray
 from gppylib.db import dbconn
-from gppylib.commands.gp import GpSegStopCmd, GpRecoverseg
+from gppylib.commands.gp import GpSegStopCmd
 from gppylib.commands import base
 from gppylib import gplog