diff --git a/script/impl/dropnode/test_dropnode.py b/script/impl/dropnode/test_dropnode.py
index 0f961a5..d699c92 100644
--- a/script/impl/dropnode/test_dropnode.py
+++ b/script/impl/dropnode/test_dropnode.py
@@ -86,6 +86,10 @@ def test_sync_standby_name():
     assert expect_output == check_sync_standby_str(dnlist, output)
     
     # ANY grouping
+    output = "ANY 1 (dn_6002), ANY 1 (dn_6003)"
+    expect_output = "ANY 1 (dn_6002)"
+    assert expect_output.replace(" ", "") == check_sync_standby_str(dnlist, output).replace(" ", "")
+
     output = "ANY 1 (dn_6002, dn_6003)"
     expect_output = "ANY 1 (dn_6002)"
     assert expect_output.replace(" ", "") == check_sync_standby_str(dnlist, output).replace(" ", "")
diff --git a/script/impl/preinstall/OLAP/PreinstallImplOLAP.py b/script/impl/preinstall/OLAP/PreinstallImplOLAP.py
index f254b41..ddbd71e 100644
--- a/script/impl/preinstall/OLAP/PreinstallImplOLAP.py
+++ b/script/impl/preinstall/OLAP/PreinstallImplOLAP.py
@@ -347,6 +347,8 @@ class PreinstallImplOLAP(PreinstallImpl):
         """
         if "HOST_IP" in os.environ.keys():
             return
+        if not self.context.current_user_root:
+            return
         self.context.logger.log("Setting pssh path", "addStep")
         try:
             pssh_path = os.path.join(os.path.dirname(__file__),
@@ -356,8 +358,7 @@ class PreinstallImplOLAP(PreinstallImpl):
             psshlib_path = os.path.join(
                 os.path.dirname(__file__),
                 "../../../gspylib/pssh/bin/TaskPool.py")
-            # 将pssh放到om tools的bin目录下
-            dest_path = os.path.join(self.context.clusterToolPath, "script")
+            dest_path = "/usr/bin/"
             secbox_path = "/var/chroot/usr/bin/"
             cmd = "cp %s %s %s %s" % (
                 pssh_path, pscp_path, psshlib_path, dest_path)
diff --git a/script/local/PreInstallUtility.py b/script/local/PreInstallUtility.py
index ce25d8c..c165fe8 100644
--- a/script/local/PreInstallUtility.py
+++ b/script/local/PreInstallUtility.py
@@ -655,7 +655,9 @@ Common options:
         if not self.mpprcFile:
             self.mpprcFile = ProfileFile.get_user_bashrc(self.user)
         retry = 1
-        cmd = "source %s;pssh -s -H %s hostname" % (self.mpprcFile, node_name)
+        node = self.clusterInfo.getDbNodeByName(node_name)
+        node_ip = node.sshIps[0]
+        cmd = "source %s;pssh -s -H %s hostname" % (self.mpprcFile, node_ip)
         while True:
             (status, output) = subprocess.getstatusoutput(cmd)
             self.logger.debug("Checking hostname mapping for node [%s]. output: %s" % (node_name, output))
@@ -668,7 +670,7 @@ Common options:
             retry += 1
             time.sleep(1)
 
-        hostname_cmd = "source %s;pssh -s -H %s 'cat /etc/hostname'" % (self.mpprcFile, node_name)
+        hostname_cmd = "source %s;pssh -s -H %s 'cat /etc/hostname'" % (self.mpprcFile, node_ip)
         (status, output) = subprocess.getstatusoutput(hostname_cmd)
         if status == 0 and output.strip() == node_name:
             pass