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From "Yurii Shylov" <>
Subject Re: Review Request 30566: HDFS, YARN, and HBase Slave Health Alert Definitions
Date Thu, 05 Feb 2015 16:13:17 GMT

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(Updated Фев. 5, 2015, 4:13 п.п.)

Review request for Ambari, Jonathan Robie and Srimanth Gunturi.


Restored warnings where needed

Bugs: AMBARI-9458

Repository: ambari


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 (updated)

  ambari-server/src/main/resources/common-services/HBASE/ fa911e1 
  ambari-server/src/main/resources/common-services/HDFS/ b8a20ac 
  ambari-server/src/main/resources/common-services/YARN/ dc4fafd 



In progress


Yurii Shylov

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