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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMBARI-15205) Registering 700 hosts gets stuck without timeout on 8 hosts
Date Fri, 26 Feb 2016 22:06:18 GMT

    [ https://issues.apache.org/jira/browse/AMBARI-15205?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15169935#comment-15169935
] 

Hadoop QA commented on AMBARI-15205:
------------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12790165/AMBARI-15205.patch
  against trunk revision .

    {color:red}-1 patch{color}.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/Ambari-trunk-test-patch/5594//console

This message is automatically generated.

> Registering 700 hosts gets stuck without timeout on 8 hosts
> -----------------------------------------------------------
>
>                 Key: AMBARI-15205
>                 URL: https://issues.apache.org/jira/browse/AMBARI-15205
>             Project: Ambari
>          Issue Type: Bug
>            Reporter: Andrew Onischuk
>            Assignee: Andrew Onischuk
>             Fix For: 2.2.2
>
>         Attachments: AMBARI-15205.patch
>
>
> When adding 700 hosts through the UI's add-host-wizard, all hosts successfully
> registered except for 8 of them. These 8 hosts were stuck in RUNNING state and
> would not timeout even after 20 minutes.
> I had to kill the bootstrap process on ambari-server to make the operation to
> complete.  
> On my second attempt I was able to recreate the problem
> Below is the output from `/api/v1/bootstrap/2` for the failing hosts
> (bootstrap response attached)
>     
>     
>     <bootStrapStatus>
>       <status>RUNNING</status>
>       .....
>     
>     
>       <hostsStatus>
>         <hostName>perf-d-511.c.pramod-thangali.internal</hostName>
>         <status>RUNNING</status>
>         <log>
>     ==========================
>     Creating target directory...
>     ==========================
>     
>     Command start time 2016-02-17 18:55:54
>     chmod: cannot access `/var/lib/ambari-agent/data': No such file or directory
>     
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @       WARNING: POSSIBLE DNS SPOOFING DETECTED!          @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     The RSA host key for perf-d-511.c.pramod-thangali.internal has changed,
>     and the key for the corresponding IP address 10.240.5.174
>     has a different value. This could either mean that
>     DNS SPOOFING is happening or the IP address for the host
>     and its host key have changed at the same time.
>     Offending key for IP in /root/.ssh/known_hosts:1418
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
>     Someone could be eavesdropping on you right now (man-in-the-middle attack)!
>     It is also possible that the RSA host key has just been changed.
>     The fingerprint for the RSA key sent by the remote host is
>     66:45:6d:a4:fe:13:5d:47:ee:df:45:cc:32:dc:6a:2f.
>     Please contact your system administrator.
>     Add correct host key in /root/.ssh/known_hosts to get rid of this message.
>     Offending key in /root/.ssh/known_hosts:1417
>     Password authentication is disabled to avoid man-in-the-middle attacks.
>     Keyboard-interactive authentication is disabled to avoid man-in-the-middle attacks.
>     Connection to perf-d-511.c.pramod-thangali.internal closed.
>     SSH command execution finished
>     host=perf-d-511.c.pramod-thangali.internal, exitcode=0
>     Command end time 2016-02-17 18:55:55
>     
>     ==========================
>     Copying common functions script...
>     ==========================
>     
>     Command start time 2016-02-17 18:55:55
>     
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @       WARNING: POSSIBLE DNS SPOOFING DETECTED!          @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     The RSA host key for perf-d-511.c.pramod-thangali.internal has changed,
>     and the key for the corresponding IP address 10.240.5.174
>     has a different value. This could either mean that
>     DNS SPOOFING is happening or the IP address for the host
>     and its host key have changed at the same time.
>     Offending key for IP in /root/.ssh/known_hosts:1418
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
>     Someone could be eavesdropping on you right now (man-in-the-middle attack)!
>     It is also possible that the RSA host key has just been changed.
>     The fingerprint for the RSA key sent by the remote host is
>     66:45:6d:a4:fe:13:5d:47:ee:df:45:cc:32:dc:6a:2f.
>     Please contact your system administrator.
>     Add correct host key in /root/.ssh/known_hosts to get rid of this message.
>     Offending key in /root/.ssh/known_hosts:1417
>     Password authentication is disabled to avoid man-in-the-middle attacks.
>     Keyboard-interactive authentication is disabled to avoid man-in-the-middle attacks.
>     scp /usr/lib/python2.6/site-packages/ambari_commons
>     host=perf-d-511.c.pramod-thangali.internal, exitcode=0
>     Command end time 2016-02-17 18:55:56
>     
>     ==========================
>     Copying OS type check script...
>     ==========================
>     
>     Command start time 2016-02-17 18:55:56
>     
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @       WARNING: POSSIBLE DNS SPOOFING DETECTED!          @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     The RSA host key for perf-d-511.c.pramod-thangali.internal has changed,
>     and the key for the corresponding IP address 10.240.5.174
>     has a different value. This could either mean that
>     DNS SPOOFING is happening or the IP address for the host
>     and its host key have changed at the same time.
>     Offending key for IP in /root/.ssh/known_hosts:1418
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
>     Someone could be eavesdropping on you right now (man-in-the-middle attack)!
>     It is also possible that the RSA host key has just been changed.
>     The fingerprint for the RSA key sent by the remote host is
>     66:45:6d:a4:fe:13:5d:47:ee:df:45:cc:32:dc:6a:2f.
>     Please contact your system administrator.
>     Add correct host key in /root/.ssh/known_hosts to get rid of this message.
>     Offending key in /root/.ssh/known_hosts:1417
>     Password authentication is disabled to avoid man-in-the-middle attacks.
>     Keyboard-interactive authentication is disabled to avoid man-in-the-middle attacks.
>     scp /usr/lib/python2.6/site-packages/ambari_server/os_check_type.py
>     host=perf-d-511.c.pramod-thangali.internal, exitcode=0
>     Command end time 2016-02-17 18:55:56
>     
>     ==========================
>     Running OS type check...
>     ==========================
>     
>     Command start time 2016-02-17 18:55:56
>     Cluster primary/cluster OS family is redhat6 and local/current OS family is redhat6
>     
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @       WARNING: POSSIBLE DNS SPOOFING DETECTED!          @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     The RSA host key for perf-d-511.c.pramod-thangali.internal has changed,
>     and the key for the corresponding IP address 10.240.5.174
>     has a different value. This could either mean that
>     DNS SPOOFING is happening or the IP address for the host
>     and its host key have changed at the same time.
>     Offending key for IP in /root/.ssh/known_hosts:1418
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
>     Someone could be eavesdropping on you right now (man-in-the-middle attack)!
>     It is also possible that the RSA host key has just been changed.
>     The fingerprint for the RSA key sent by the remote host is
>     66:45:6d:a4:fe:13:5d:47:ee:df:45:cc:32:dc:6a:2f.
>     Please contact your system administrator.
>     Add correct host key in /root/.ssh/known_hosts to get rid of this message.
>     Offending key in /root/.ssh/known_hosts:1417
>     Password authentication is disabled to avoid man-in-the-middle attacks.
>     Keyboard-interactive authentication is disabled to avoid man-in-the-middle attacks.
>     Connection to perf-d-511.c.pramod-thangali.internal closed.
>     SSH command execution finished
>     host=perf-d-511.c.pramod-thangali.internal, exitcode=0
>     Command end time 2016-02-17 18:55:57
>     
>     ==========================
>     Checking 'sudo' package on remote host...
>     ==========================
>     
>     Command start time 2016-02-17 18:55:57
>     sudo-1.8.6p3-20.el6_7.x86_64
>     
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @       WARNING: POSSIBLE DNS SPOOFING DETECTED!          @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     The RSA host key for perf-d-511.c.pramod-thangali.internal has changed,
>     and the key for the corresponding IP address 10.240.5.174
>     has a different value. This could either mean that
>     DNS SPOOFING is happening or the IP address for the host
>     and its host key have changed at the same time.
>     Offending key for IP in /root/.ssh/known_hosts:1418
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
>     Someone could be eavesdropping on you right now (man-in-the-middle attack)!
>     It is also possible that the RSA host key has just been changed.
>     The fingerprint for the RSA key sent by the remote host is
>     66:45:6d:a4:fe:13:5d:47:ee:df:45:cc:32:dc:6a:2f.
>     Please contact your system administrator.
>     Add correct host key in /root/.ssh/known_hosts to get rid of this message.
>     Offending key in /root/.ssh/known_hosts:1417
>     Password authentication is disabled to avoid man-in-the-middle attacks.
>     Keyboard-interactive authentication is disabled to avoid man-in-the-middle attacks.
>     Connection to perf-d-511.c.pramod-thangali.internal closed.
>     SSH command execution finished
>     host=perf-d-511.c.pramod-thangali.internal, exitcode=0
>     Command end time 2016-02-17 18:55:58
>     
>     ==========================
>     Copying repo file to 'tmp' folder...
>     ==========================
>     
>     Command start time 2016-02-17 18:55:58
>     
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @       WARNING: POSSIBLE DNS SPOOFING DETECTED!          @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     The RSA host key for perf-d-511.c.pramod-thangali.internal has changed,
>     and the key for the corresponding IP address 10.240.5.174
>     has a different value. This could either mean that
>     DNS SPOOFING is happening or the IP address for the host
>     and its host key have changed at the same time.
>     Offending key for IP in /root/.ssh/known_hosts:1418
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
>     Someone could be eavesdropping on you right now (man-in-the-middle attack)!
>     It is also possible that the RSA host key has just been changed.
>     The fingerprint for the RSA key sent by the remote host is
>     66:45:6d:a4:fe:13:5d:47:ee:df:45:cc:32:dc:6a:2f.
>     Please contact your system administrator.
>     Add correct host key in /root/.ssh/known_hosts to get rid of this message.
>     Offending key in /root/.ssh/known_hosts:1417
>     Password authentication is disabled to avoid man-in-the-middle attacks.
>     Keyboard-interactive authentication is disabled to avoid man-in-the-middle attacks.
>     scp /etc/yum.repos.d/ambari.repo
>     host=perf-d-511.c.pramod-thangali.internal, exitcode=0
>     Command end time 2016-02-17 18:55:59
>     
>     ==========================
>     Moving file to repo dir...
>     ==========================
>     
>     Command start time 2016-02-17 18:55:59
>     
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @       WARNING: POSSIBLE DNS SPOOFING DETECTED!          @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     The RSA host key for perf-d-511.c.pramod-thangali.internal has changed,
>     and the key for the corresponding IP address 10.240.5.174
>     has a different value. This could either mean that
>     DNS SPOOFING is happening or the IP address for the host
>     and its host key have changed at the same time.
>     Offending key for IP in /root/.ssh/known_hosts:1418
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
>     Someone could be eavesdropping on you right now (man-in-the-middle attack)!
>     It is also possible that the RSA host key has just been changed.
>     The fingerprint for the RSA key sent by the remote host is
>     66:45:6d:a4:fe:13:5d:47:ee:df:45:cc:32:dc:6a:2f.
>     Please contact your system administrator.
>     Add correct host key in /root/.ssh/known_hosts to get rid of this message.
>     Offending key in /root/.ssh/known_hosts:1417
>     Password authentication is disabled to avoid man-in-the-middle attacks.
>     Keyboard-interactive authentication is disabled to avoid man-in-the-middle attacks.
>     Connection to perf-d-511.c.pramod-thangali.internal closed.
>     SSH command execution finished
>     host=perf-d-511.c.pramod-thangali.internal, exitcode=0
>     Command end time 2016-02-17 18:55:59
>     
>     ==========================
>     Changing permissions for ambari.repo...
>     ==========================
>     
>     Command start time 2016-02-17 18:55:59
>     
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @       WARNING: POSSIBLE DNS SPOOFING DETECTED!          @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     The RSA host key for perf-d-511.c.pramod-thangali.internal has changed,
>     and the key for the corresponding IP address 10.240.5.174
>     has a different value. This could either mean that
>     DNS SPOOFING is happening or the IP address for the host
>     and its host key have changed at the same time.
>     Offending key for IP in /root/.ssh/known_hosts:1418
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
>     Someone could be eavesdropping on you right now (man-in-the-middle attack)!
>     It is also possible that the RSA host key has just been changed.
>     The fingerprint for the RSA key sent by the remote host is
>     66:45:6d:a4:fe:13:5d:47:ee:df:45:cc:32:dc:6a:2f.
>     Please contact your system administrator.
>     Add correct host key in /root/.ssh/known_hosts to get rid of this message.
>     Offending key in /root/.ssh/known_hosts:1417
>     Password authentication is disabled to avoid man-in-the-middle attacks.
>     Keyboard-interactive authentication is disabled to avoid man-in-the-middle attacks.
>     Connection to perf-d-511.c.pramod-thangali.internal closed.
>     SSH command execution finished
>     host=perf-d-511.c.pramod-thangali.internal, exitcode=0
>     Command end time 2016-02-17 18:56:00
>     
>     ==========================
>     Copying setup script file...
>     ==========================
>     
>     Command start time 2016-02-17 18:56:00
>     
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @       WARNING: POSSIBLE DNS SPOOFING DETECTED!          @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     The RSA host key for perf-d-511.c.pramod-thangali.internal has changed,
>     and the key for the corresponding IP address 10.240.5.174
>     has a different value. This could either mean that
>     DNS SPOOFING is happening or the IP address for the host
>     and its host key have changed at the same time.
>     Offending key for IP in /root/.ssh/known_hosts:1418
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
>     Someone could be eavesdropping on you right now (man-in-the-middle attack)!
>     It is also possible that the RSA host key has just been changed.
>     The fingerprint for the RSA key sent by the remote host is
>     66:45:6d:a4:fe:13:5d:47:ee:df:45:cc:32:dc:6a:2f.
>     Please contact your system administrator.
>     Add correct host key in /root/.ssh/known_hosts to get rid of this message.
>     Offending key in /root/.ssh/known_hosts:1417
>     Password authentication is disabled to avoid man-in-the-middle attacks.
>     Keyboard-interactive authentication is disabled to avoid man-in-the-middle attacks.
>     scp /usr/lib/python2.6/site-packages/ambari_server/setupAgent.py
>     host=perf-d-511.c.pramod-thangali.internal, exitcode=0
>     Command end time 2016-02-17 18:56:00
>     
>     ==========================
>     Running setup agent script...
>     ==========================
>     
>     Command start time 2016-02-17 18:56:00
>     Repository base is listed more than once in the configuration
>     Repository updates is listed more than once in the configuration
>     Repository extras is listed more than once in the configuration
>     Error: Cannot find a valid baseurl for repo: base
>     Repository base is listed more than once in the configuration
>     Repository updates is listed more than once in the configuration
>     Repository extras is listed more than once in the configuration
>     Error: Cannot find a valid baseurl for repo: base
>     ('', None)
>     
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @       WARNING: POSSIBLE DNS SPOOFING DETECTED!          @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     The RSA host key for perf-d-511.c.pramod-thangali.internal has changed,
>     and the key for the corresponding IP address 10.240.5.174
>     has a different value. This could either mean that
>     DNS SPOOFING is happening or the IP address for the host
>     and its host key have changed at the same time.
>     Offending key for IP in /root/.ssh/known_hosts:1418
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
>     Someone could be eavesdropping on you right now (man-in-the-middle attack)!
>     It is also possible that the RSA host key has just been changed.
>     The fingerprint for the RSA key sent by the remote host is
>     66:45:6d:a4:fe:13:5d:47:ee:df:45:cc:32:dc:6a:2f.
>     Please contact your system administrator.
>     Add correct host key in /root/.ssh/known_hosts to get rid of this message.
>     Offending key in /root/.ssh/known_hosts:1417
>     Password authentication is disabled to avoid man-in-the-middle attacks.
>     Keyboard-interactive authentication is disabled to avoid man-in-the-middle attacks.
>     Connection to perf-d-511.c.pramod-thangali.internal closed.
>     SSH command execution finished
>     host=perf-d-511.c.pramod-thangali.internal, exitcode=1
>     Command end time 2016-02-17 18:56:47
>     
>     ERROR: Bootstrap of host perf-d-511.c.pramod-thangali.internal fails because previous
action finished with non-zero exit code (1)
>     ERROR MESSAGE: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @       WARNING: POSSIBLE DNS SPOOFING DETECTED!          @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     The RSA host key for perf-d-511.c.pramod-thangali.internal has changed,
>     and the key for the corresponding IP address 10.240.5.174
>     has a different value. This could either mean that
>     DNS SPOOFING is happening or the IP address for the host
>     and its host key have changed at the same time.
>     Offending key for IP in /root/.ssh/known_hosts:1418
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
>     Someone could be eavesdropping on you right now (man-in-the-middle attack)!
>     It is also possible that the RSA host key has just been changed.
>     The fingerprint for the RSA key sent by the remote host is
>     66:45:6d:a4:fe:13:5d:47:ee:df:45:cc:32:dc:6a:2f.
>     Please contact your system administrator.
>     Add correct host key in /root/.ssh/known_hosts to get rid of this message.
>     Offending key in /root/.ssh/known_hosts:1417
>     Password authentication is disabled to avoid man-in-the-middle attacks.
>     Keyboard-interactive authentication is disabled to avoid man-in-the-middle attacks.
>     Connection to perf-d-511.c.pramod-thangali.internal closed.
>     
>     STDOUT: Repository base is listed more than once in the configuration
>     Repository updates is listed more than once in the configuration
>     Repository extras is listed more than once in the configuration
>     Error: Cannot find a valid baseurl for repo: base
>     Repository base is listed more than once in the configuration
>     Repository updates is listed more than once in the configuration
>     Repository extras is listed more than once in the configuration
>     Error: Cannot find a valid baseurl for repo: base
>     ('', None)
>     
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @       WARNING: POSSIBLE DNS SPOOFING DETECTED!          @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     The RSA host key for perf-d-511.c.pramod-thangali.internal has changed,
>     and the key for the corresponding IP address 10.240.5.174
>     has a different value. This could either mean that
>     DNS SPOOFING is happening or the IP address for the host
>     and its host key have changed at the same time.
>     Offending key for IP in /root/.ssh/known_hosts:1418
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     @    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
>     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
>     IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
>     Someone could be eavesdropping on you right now (man-in-the-middle attack)!
>     It is also possible that the RSA host key has just been changed.
>     The fingerprint for the RSA key sent by the remote host is
>     66:45:6d:a4:fe:13:5d:47:ee:df:45:cc:32:dc:6a:2f.
>     Please contact your system administrator.
>     Add correct host key in /root/.ssh/known_hosts to get rid of this message.
>     Offending key in /root/.ssh/known_hosts:1417
>     Password authentication is disabled to avoid man-in-the-middle attacks.
>     Keyboard-interactive authentication is disabled to avoid man-in-the-middle attacks.
>     Connection to perf-d-511.c.pramod-thangali.internal closed.
>       </log>
>     </hostsStatus>
>     
>     
>     ...
>     



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