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Posted to issues@hive.apache.org by "Anurag Mantripragada (JIRA)" <ji...@apache.org> on 2018/08/10 19:01:00 UTC
[jira] [Updated] (HIVE-20363) Use integer constants for frequently
used serde classes.
[ https://issues.apache.org/jira/browse/HIVE-20363?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Anurag Mantripragada updated HIVE-20363:
----------------------------------------
Description:
Serde libraries are stored as fully qualified class names which are long strings, we can get improvements in I/O and storage if we store integer constants frequently used serde classes in the backend DB.
For example:
{code:java}
org.apache.hadoop.hive.serde2.avro.AvroSerDe"---> 1
parquet.hive.serde.ParquetHiveSerDe" ---> 2
...{code}
was:
Serde libraries are stored as fully qualified class names which are long strings, we can get improvements in I/O and storage if we store integer constants frequently used serde classes in the backend DB.
For example:
{code:java}
org.apache.hadoop.hive.serde2.avro.AvroSerDe"---> 1 parquet.hive.serde.ParquetHiveSerDe" ---> 2
...{code}
> Use integer constants for frequently used serde classes.
> --------------------------------------------------------
>
> Key: HIVE-20363
> URL: https://issues.apache.org/jira/browse/HIVE-20363
> Project: Hive
> Issue Type: Improvement
> Components: Metastore, Standalone Metastore
> Reporter: Anurag Mantripragada
> Assignee: Anurag Mantripragada
> Priority: Major
>
> Serde libraries are stored as fully qualified class names which are long strings, we can get improvements in I/O and storage if we store integer constants frequently used serde classes in the backend DB.
> For example:
> {code:java}
> org.apache.hadoop.hive.serde2.avro.AvroSerDe"---> 1
> parquet.hive.serde.ParquetHiveSerDe" ---> 2
> ...{code}
>
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