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From "Chuck Connell (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-3253) ArrayIndexOutOfBounds exception for deeply nested structs
Date Tue, 09 Oct 2012 18:24:04 GMT

     [ https://issues.apache.org/jira/browse/HIVE-3253?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chuck Connell updated HIVE-3253:
--------------------------------

    Attachment: jsonout.hive

Test case of a large, deeply nested table definition. This is our real case that is failing.
                
> ArrayIndexOutOfBounds exception for deeply nested structs
> ---------------------------------------------------------
>
>                 Key: HIVE-3253
>                 URL: https://issues.apache.org/jira/browse/HIVE-3253
>             Project: Hive
>          Issue Type: Bug
>          Components: Serializers/Deserializers
>    Affects Versions: 0.9.0, 0.10.0
>            Reporter: Swarnim Kulkarni
>            Assignee: Travis Crawford
>         Attachments: HIVE-3253_moar_nesting.1.patch, jsonout.hive
>
>
> It was observed that while creating table with deeply nested structs might throw this
exception:
> {code}
> java.lang.ArrayIndexOutOfBoundsException: 9
>         at org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:281)
> 	at org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:263)
> 	at org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:276)
> 	at org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:263)
> 	at org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:276)
> 	at org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:263)
> 	at org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:276)
> 	at org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:263)
> 	at org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:276)
> 	at org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyStructInspector(LazyFactory.java:354)
> {code}
> The reason being that currently the separators array has been hardcoded to be of size
8 in the LazySimpleSerde.
> {code}
> // Read the separators: We use 8 levels of separators by default, but we
> // should change this when we allow users to specify more than 10 levels
> // of separators through DDL.
> serdeParams.separators = new byte[8];
> {code}
> If possible, we should increase this size or at least make it configurable to properly
handle deeply nested structs.

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