I'm trying to register hostnames in Ambari but getting the error below. We tried to run yum update openssl but its got the latest version. 
We tried to run yum - update it didn’t help. I also tried removing the other openssl packages openssl-devel-1.0.1e-42.el6.x86_64,
openssl098e-0.9.8e-17.el6.centos.2.x86_64 and restarting the ambari server/agents and same error. Tried running yum -y install opens* as well but didn’t help. Any ideas?
ERROR 2015-09-23 09:47:07,402 NetUtil.py:77 - [Errno 8] _ssl.c:492: EOF occurred in violation of protocol
ERROR 2015-09-23 09:47:07,402 NetUtil.py:78 - SSLError: Failed to connect. Please check openssl library versions.
Refer to: https://bugzilla.redhat.com/show_bug.cgi?id=1022468 for more details.
WARNING 2015-09-23 09:47:07,402 NetUtil.py:105 - Server at https://test.org:8440is not reachable, sleeping for 10 seconds...
WARNING 2015-09-23 09:47:07,402 NetUtil.py:105 - Server at https://test.org:8440is not reachable, sleeping for 10 seconds...
INFO 2015-09-23 09:47:14,746 main.py:74 - loglevel=logging.INFO
INFO 2015-09-23 09:47:14,746 main.py:74 - loglevel=logging.INFO
INFO 2015-09-23 09:47:17,403 NetUtil.py:59 - Connecting to https://test.org:8440/ca
WARNING 2015-09-23 09:47:17,404 NetUtil.py:82 - Failed to connect to https://test.org:8440/ca due to [Errno 111] Connection refused
WARNING 2015-09-23 09:47:17,404 NetUtil.py:105 - Server at https://test.org:8440is not reachable, sleeping for 10 seconds...
WARNING 2015-09-23 09:47:17,404 NetUtil.py:105 - Server at https://test.org:8440is not reachable, sleeping for 10 seconds...
ERROR 2015-09-23 09:47:19,780 main.py:315 - Fatal exception occurred:
Traceback (most recent call last):
File "/usr/lib/python2.6/site-packages/ambari_agent/main.py", line 312, in <module>
main(heartbeat_stop_callback)
File "/usr/lib/python2.6/site-packages/ambari_agent/main.py", line 248, in main
stop_agent()
File "/usr/lib/python2.6/site-packages/ambari_agent/main.py", line 198, in stop_agent
sys.exit(1)
SystemExit: 1
ERROR 2015-09-23 09:47:19,780 main.py:315 - Fatal exception occurred:
Traceback (most recent call last):
File "/usr/lib/python2.6/site-packages/ambari_agent/main.py", line 312, in <module>
main(heartbeat_stop_callback)
File "/usr/lib/python2.6/site-packages/ambari_agent/main.py", line 248, in main
stop_agent()
File "/usr/lib/python2.6/site-packages/ambari_agent/main.py", line 198, in stop_agent
sys.exit(1)
SystemExit: 1

Yes. That is a known issue. Modify Ambari Server's java.home to the standard oracle jdk.

 
 
 3  隐藏 6 · 分享
 

that fixed it. Thanks.

 

Hi,

We are also facing same issue. Even after setting java.home=/usr/jdk64/jdk1.8.0_40 in ambari.properties , it is not resolved.

Is standard oracle jdk path different from this ?

Below are logs snippet from ambari-agent.log ::

ERROR 2015-12-24 18:43:31,604 NetUtil.py:77 - [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:590) ERROR 2015-12-24 18:43:31,604 NetUtil.py:78 - SSLError: Failed to connect. Please check openssl library versions. Refer to: https://bugzilla.redhat.com/show_bug.cgi?id=1022468 for more details.

 

@gaurav sharma I am actually facing the same issue, I have the same SSL error message during the registration. Did you find a solution ?

 

@Ali Gouta No, we are still trying to figure out the solution.

OpenSSl version in my case is ::

[root@dehdteste7778b54apse01 ~]# rpm -qa | grep openssl

openssl-devel-1.0.1k-13.88.amzn1.x86_64

openssl-1.0.1k-13.88.amzn1.x86_64

Can this be a problem ?

 

@gaurav sharma

In the documentation, it is said that we should user OpenSSL (v1.01, build 16 or later). So I think you should upgrade your OpenSSL version. Actually, I am running openssl-1.0.1e-42.el6_7.1.x86_64, and still not being able to register my agent :(

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个解答,截止Prashant Band · 2018年07月17日 06:54

[ RESOLVED ]

Gone through same issue only when we are using oVirt Virtualization For our cluster deployment.

Only following solution resolved the problem (Thanks to @bing lv and @Deven Fan:

By adding below config in [security] section of

  1. vi /etc/ambari-agent/conf/ambari-agent.ini
  2. force_https_protocol=PROTOCOL_TLSv1_2
  1. vi /etc/python/cert-verification.cfg
  2. [https]
  3. verify=disable
 
 
 6  隐藏 3 · 分享
 

Thanks!! These changes should be performed on all hosts

 

Thanks Prashant

 

Perfect solution, it works

 

个解答,截止Arian Trayen · 2017年09月20日 14:25

I've been stuck with this problem for a day and I've tried everything on this post, but nothing works.

However, the link from this post solved my problem so I thought I should link it to here.

https://community.hortonworks.com/questions/121978/openssl-compatibility.html?childToView=138080#answer-138080

Basically, disable certificate verification on all nodes

  1. vi /etc/python/cert-verification.cfg
  2. [https]
  3. verify=disable

good luck.

 
 
 3 · 分享
 
 

个解答,截止Boualem SAOULA· 2018年07月30日 15:21

Hello

I've just add these two line below under security section and it works 
[security]
ssl_verify_cert=0
force_https_protocol=PROTOCOL_TLSv1_2

 
 
 1 · 分享
 
 

个解答,截止Eduardo Di Santi · 2016年11月25日 11:04

In our case the problem was that the other nodes have OpenJDK instead of oracle's, installing Oracle JDK on those nodes solves the problem

 
 
 0 · 分享
 
 

个解答,截止Eduardo Di Santi · 2016年11月25日 11:03

In our case the problem was that the other nodes have OpenJDK instead of oracle's, installing Oracle JDK on those nodes solves the problem

 
 
 0 · 分享
 
 

个解答,截止sharath pappula · 2016年09月20日 04:35

I am facing below issue even after upgrading ambari-server,ambari agent, openssl,rebooting ambari,ssh

  1. ERROR 2016-09-20 09:48:52,494 NetUtil.py:77 - [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:590)
  2. ERROR 2016-09-20 09:48:52,495 NetUtil.py:78 - SSLError: Failed to connect. Please check openssl library versions.
  3. Refer to: https://bugzilla.redhat.com/show_bug.cgi?id=1022468 for more details.
  4. WARNING 2016-09-20 09:48:52,495 NetUtil.py:105 - Server at https://localhost:8440 is not reachable, sleeping for 10 seconds...
  5. ', None)
  6. Connection to localhost closed.
  7. SSH command execution finished
  8. host=localhost, exitcode=0
  9. Command end time 2016-09-20 09:48:54
  10. Registering with the server...
  11. Registration with the server failed.
  12. Can anyone pls help me?
  13. I am using ubuntu 16 OS
 
 
 0 · 分享
 
 

个解答,截止zkfs · 2016年08月12日 06:26

i have faced the same issue, for this Java up-grade is not required.

Just intall the openssl package and run installation host registration went fine.

1) from vm connect to the internet

2) Install the opnssl package

#yum install openssl

if it installed fine, you can proceed with host Registration .

it worked for me.

 
 
 0 · 分享
 
 

个解答,截止darkz yu · 2016年03月29日 03:39

I use openjdk 1.8,then the problem is resolved.

So, I think is just the java version problem...

 
 
 0 · 分享
 
 

个解答,截止darkz yu · 2016年03月24日 04:19

I am still not very clearly what's the resolve?

rpm -qa | grep java

tzdata-java-2014g-1.el6.noarch

java-1.6.0-openjdk-1.6.0.0-11.1.13.4.el6.x86_64

java-1.7.0-openjdk-1.7.0.95-2.6.4.0.el6_7.x86_64

alternatives --display java

java - status is auto. Current `best' version is /usr/lib/jvm/jre-1.7.0-openjdk.x86_64/bin/java.

and the python problem @Ali Gouta said ,it still the same ....

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