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From "Dmytro Shkvyra" <dshkv...@hortonworks.com>
Subject Re: Review Request 17542: Alerts for Ganglia monitor is shown only on the host with Ganglia server
Date Thu, 30 Jan 2014 16:16:14 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/17542/
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(Updated Jan. 30, 2014, 4:16 p.m.)


Review request for Ambari, Mahadev Konar and Oleksandr Diachenko.


Changes
-------

Tested on HDP-1.3.3, repository for HDP-2.1.1 was not in order.


Bugs: AMBARI-4472
    https://issues.apache.org/jira/browse/AMBARI-4472


Repository: ambari


Description
-------

Actually, we never checked gmond's at hosts without Ganglia server.
For checking gmond's on remote hosts we need open TCP port. By default these ports are opened,
but they were opened by IPv6 protocol only (see configs /etc/ganglia/hdp/HDPJobTracker/gmond.core.conf
for example).
So, if we want open these ports in IPv4, we will override tcp_accept_channel property in /etc/ganglia/hdp/HDPJobTracker/conf.d/gmond.slave.conf
(for example) with FQDN of host (except host with master components).


STR
1. Install Hadoop with Ganglia monitor on all hosts of the cluster
2. Go to Hosts page find host with Ganglia server
3. go to host with GS and stop Ganglia monitor
4. wait for task is completed
5. alerts are shown for this host
6. start GM and wait for task is completed
7. go to host without GS and stop GM
8. wait for task is completed
9. alerts for host are not shown 
see attached screens


Diffs
-----

  ambari-server/src/main/resources/stacks/HDP/1.3.3/services/GANGLIA/package/files/gmondLib.sh
87da4dd 
  ambari-server/src/main/resources/stacks/HDP/1.3.3/services/NAGIOS/package/templates/hadoop-services.cfg.j2
793732e 
  ambari-server/src/main/resources/stacks/HDP/2.1.1/services/GANGLIA/package/files/gmondLib.sh
87da4dd 
  ambari-server/src/main/resources/stacks/HDP/2.1.1/services/NAGIOS/package/templates/hadoop-services.cfg.j2
b9f0892 

Diff: https://reviews.apache.org/r/17542/diff/


Testing (updated)
-------

Tested on HDP-1.3.3, repository for HDP-2.1.1 was not in order.


Thanks,

Dmytro Shkvyra


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