Robert Levas created AMBARI-20358:
-------------------------------------

             Summary: NPE during Ambari server schema upgrade while updating 
hbase_master_cpu alert definition
                 Key: AMBARI-20358
                 URL: https://issues.apache.org/jira/browse/AMBARI-20358
             Project: Ambari
          Issue Type: Bug
          Components: ambari-server
    Affects Versions: 2.5.0
            Reporter: Robert Levas
            Assignee: Robert Levas
            Priority: Blocker
             Fix For: 2.5.0


Probably caused by this commit: 
https://github.com/hortonworks/ambari/commit/6be4a18dd00f9d23d63410b748d67c952a6240c8

*STR*
# Deploy HDP-2.3.6 with Ambari-2.2.2.0
# Upgrade Ambari to 2.5.0.1-13 (hash: 52b820b0c899a0246061c51245aca231c63583d7) 
- this includes executing 'yum upgrade ambari-server' followed by 
'ambari-server upgrade'

*Result*
Error during DB schema upgrade
{code}
08 Mar 2017 04:52:22,059  INFO [main] AbstractUpgradeCatalog:609 - cluster 
'cl1' changed by: 'ambari-upgrade'; type='ranger-kafka-security' 
tag='version1488948741867' from='version1488942647954'
08 Mar 2017 04:52:23,469  INFO [main] UpgradeCatalog250:214 - Updating alert 
definition hbase_master_cpu in cluster 2
08 Mar 2017 04:52:23,471 ERROR [main] SchemaUpgradeHelper:239 - Upgrade failed.
java.lang.NullPointerException
        at 
org.apache.ambari.server.upgrade.UpgradeCatalog250.fixHBaseMasterCPUUtilizationAlertDefinition(UpgradeCatalog250.java:229)
        at 
org.apache.ambari.server.upgrade.UpgradeCatalog250.executeDMLUpdates(UpgradeCatalog250.java:197)
        at 
org.apache.ambari.server.upgrade.AbstractUpgradeCatalog.upgradeData(AbstractUpgradeCatalog.java:952)
        at 
org.apache.ambari.server.upgrade.SchemaUpgradeHelper.executeDMLUpdates(SchemaUpgradeHelper.java:237)
        at 
org.apache.ambari.server.upgrade.SchemaUpgradeHelper.main(SchemaUpgradeHelper.java:430)
08 Mar 2017 04:52:23,474 ERROR [main] SchemaUpgradeHelper:443 - Exception 
occurred during upgrade, failed
org.apache.ambari.server.AmbariException
        at 
org.apache.ambari.server.upgrade.SchemaUpgradeHelper.executeDMLUpdates(SchemaUpgradeHelper.java:240)
        at 
org.apache.ambari.server.upgrade.SchemaUpgradeHelper.main(SchemaUpgradeHelper.java:430)
Caused by: java.lang.NullPointerException
        at 
org.apache.ambari.server.upgrade.UpgradeCatalog250.fixHBaseMasterCPUUtilizationAlertDefinition(UpgradeCatalog250.java:229)
        at 
org.apache.ambari.server.upgrade.UpgradeCatalog250.executeDMLUpdates(UpgradeCatalog250.java:197)
        at 
org.apache.ambari.server.upgrade.AbstractUpgradeCatalog.upgradeData(AbstractUpgradeCatalog.java:952)
        at 
org.apache.ambari.server.upgrade.SchemaUpgradeHelper.executeDMLUpdates(SchemaUpgradeHelper.java:237)
        ... 1 more
08 Mar 2017 04:52:27,829  INFO [main] Configuration:2906 - Reading password 
from existing file
08 Mar 2017 04:52:27,863  INFO [main] Configuration:3382 - Hosts Mapping File 
null
08 Mar 2017 04:52:27,864  INFO [main] HostsMap:60 - Using hostsmap file null
{code}




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