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https://reviews.apache.org/r/30566/
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Review request for Ambari, Jonathan Robie and Srimanth Gunturi.


Bugs: AMBARI-9458
    https://issues.apache.org/jira/browse/AMBARI-9458


Repository: ambari


Description
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When a slave component, such as a DataNode, encounters some catastrophic 
problem like a heap allocation error, and no longer can perform its work, the 
NameNode marks this DataNode as being unhealthy.

The current alert definitions only check for the DataNode process being alive, 
which is still technically is. We need to add new alert definitions for:

- HDFS/DataNode (runs on NameNode, query is to NameNode JMX)
- YARN/NodeManager (runs on ResourceManager, query is to ResourceManager JMX)
- HBase/RegionServer (runs on HBase Master, queries HBase Master JMX)

Which will check for slaves that are in some sort of bad state. Depending on 
the JMX structures that need to be queried, these can either be METRIC or 
SCRIPT style alert definitions.


Diffs
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  ambari-server/src/main/resources/common-services/HBASE/0.96.0.2.0/alerts.json 
fa911e1 
  ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/alerts.json 
b8a20ac 
  ambari-server/src/main/resources/common-services/YARN/2.1.0.2.0/alerts.json 
dc4fafd 
  
ambari-server/src/main/resources/common-services/YARN/2.1.0.2.0/package/alerts/alert_nodemanagers_summary.py
 PRE-CREATION 

Diff: https://reviews.apache.org/r/30566/diff/


Testing
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In progress


Thanks,

Yurii Shylov

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