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From "Murtadha Hubail (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (ASTERIXDB-2005) ArithmeticException on dataset rebalance to a node group with no nodes
Date Sat, 29 Jul 2017 09:29:02 GMT

     [ https://issues.apache.org/jira/browse/ASTERIXDB-2005?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Murtadha Hubail resolved ASTERIXDB-2005.
----------------------------------------
    Resolution: Fixed

> ArithmeticException on dataset rebalance to a node group with no nodes
> ----------------------------------------------------------------------
>
>                 Key: ASTERIXDB-2005
>                 URL: https://issues.apache.org/jira/browse/ASTERIXDB-2005
>             Project: Apache AsterixDB
>          Issue Type: Bug
>          Components: CLUS - Cluster management
>            Reporter: Murtadha Hubail
>            Assignee: Murtadha Hubail
>
> When a dataset rebalance is done over a node group with no nodes, the following exception
is encountered:
> {code:java}
> java.lang.ArithmeticException: / by zero
> 	at org.apache.asterix.metadata.declared.MetadataProvider.getCardinalityPerPartitionHint(MetadataProvider.java:719)
~[asterix-metadata-0.9.2-SNAPSHOT.jar:0.9.2-SNAPSHOT]
> 	at org.apache.asterix.metadata.utils.SecondaryIndexOperationsHelper.init(SecondaryIndexOperationsHelper.java:198)
~[asterix-metadata-0.9.2-SNAPSHOT.jar:0.9.2-SNAPSHOT]
> 	at org.apache.asterix.metadata.utils.SecondaryIndexOperationsHelper.createIndexOperationsHelper(SecondaryIndexOperationsHelper.java:163)
~[asterix-metadata-0.9.2-SNAPSHOT.jar:0.9.2-SNAPSHOT]
> 	at org.apache.asterix.metadata.utils.IndexUtil.buildDropIndexJobSpec(IndexUtil.java:112)
~[asterix-metadata-0.9.2-SNAPSHOT.jar:0.9.2-SNAPSHOT]
> 	at org.apache.asterix.utils.RebalanceUtil.dropDatasetFiles(RebalanceUtil.java:330) ~[asterix-app-0.9.2-SNAPSHOT.jar:0.9.2-SNAPSHOT]
> 	at org.apache.asterix.utils.RebalanceUtil.rebalance(RebalanceUtil.java:200) ~[asterix-app-0.9.2-SNAPSHOT.jar:0.9.2-SNAPSHOT]
> 	at org.apache.asterix.utils.RebalanceUtil.rebalance(RebalanceUtil.java:124) ~[asterix-app-0.9.2-SNAPSHOT.jar:0.9.2-SNAPSHOT]
> {code}
> The proposed solution is to treat rebalance to no nodes as a drop dataset.



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