@Alireza Sadeghi You can apply this patch using "patch" command: http://www.tutorialspoint.com/unix_commands/patch.htm 1) Install patch application yum install patch 2) Download patch AMBARI-21263 wget https://issues.apache.org/jira/secure/attachment/12873572/AMBARI-21263.patch 3) Backup serverUpgrade.py file cp /usr/lib/python2.6/site-packages/ambari_server/serverUpgrade.py /usr/lib/python2.6/site-packages/ambari_server/serverUpgrade.py_org 4) Apply patch patch < AMBARI-21263.patch can't find file to patch at input line 5 Perhaps you should have used the -p or --strip option? The text leading up to this was: -------------------------- |diff --git a/ambari-server/src/main/python/ambari_server/serverUpgrade.py b/ambari-server/src/main/python/ambari_server/serverUpgrade.py |index 160c91d..8263062 100644 |--- a/ambari-server/src/main/python/ambari_server/serverUpgrade.py |+++ b/ambari-server/src/main/python/ambari_server/serverUpgrade.py -------------------------- File to patch: /usr/lib/python2.6/site-packages/ambari_server/serverUpgrade.py patching file /usr/lib/python2.6/site-packages/ambari_server/serverUpgrade.py 5) Check files differences diff /usr/lib/python2.6/site-packages/ambari_server/serverUpgrade.py /usr/lib/python2.6/site-packages/ambari_server/serverUpgrade.py_org ... View more