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https://issues.apache.org/jira/browse/AMBARI-5798?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14003522#comment-14003522
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Michael Harp commented on AMBARI-5798:
--------------------------------------
The issue is with checkIptables assuming that iptables is installed. When
iptables is not installed the function will always throw an exception and
return ipTablesIsRunning=true.
/ambari-agent/src/main/python/ambari_agent/HostInfo.py
{code} def checkIptables(self):
iptablesIsRunning = True
try:
iptables = subprocess.Popen(["iptables", "-S"], stdout=subprocess.PIPE)
stdout = iptables.communicate()
if stdout == ('-P INPUT ACCEPT\n-P FORWARD ACCEPT\n-P OUTPUT ACCEPT\n',
None):
iptablesIsRunning = False
except:
pass
return iptablesIsRunning{code}
> Host Check erroneously reporting "Firewall Issues" during install
> -----------------------------------------------------------------
>
> Key: AMBARI-5798
> URL: https://issues.apache.org/jira/browse/AMBARI-5798
> Project: Ambari
> Issue Type: Bug
> Affects Versions: 1.6.0
> Environment: SLES 11
> Ambari 1.6.0-39
> Reporter: Sudhir Prakash
>
> I am going through a cluster installation and noticed that one of the Host
> Checks failed with "Firewall issues". According to the message, it says that
> {{iptables}} is running on all of my nodes. However, iptables is not even
> installed on any of my nodes
> {code}
> hadoopvm1-1:~ # rpm -qa | grep -i iptables
> hadoopvm1-1:~ #
> {code}
> This issue will cause lots of confusion with our customers that will be
> performing an installation and should be addressed in 1.6.0
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