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https://issues.apache.org/jira/browse/HIVE-4732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13773964#comment-13773964
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Hudson commented on HIVE-4732:
------------------------------
FAILURE: Integrated in Hive-trunk-hadoop2 #449 (See
[https://builds.apache.org/job/Hive-trunk-hadoop2/449/])
HIVE-4732 : Reduce or eliminate the expensive Schema equals() check for
AvroSerde (Mohammad Kamrul Islam via Ashutosh Chauhan) (hashutosh:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1525290)
*
/hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/avro/AvroGenericRecordReader.java
*
/hive/trunk/serde/src/java/org/apache/hadoop/hive/serde2/avro/AvroDeserializer.java
*
/hive/trunk/serde/src/java/org/apache/hadoop/hive/serde2/avro/AvroGenericRecordWritable.java
*
/hive/trunk/serde/src/test/org/apache/hadoop/hive/serde2/avro/TestAvroDeserializer.java
*
/hive/trunk/serde/src/test/org/apache/hadoop/hive/serde2/avro/TestGenericAvroRecordWritable.java
*
/hive/trunk/serde/src/test/org/apache/hadoop/hive/serde2/avro/TestSchemaReEncoder.java
* /hive/trunk/serde/src/test/org/apache/hadoop/hive/serde2/avro/Utils.java
> Reduce or eliminate the expensive Schema equals() check for AvroSerde
> ---------------------------------------------------------------------
>
> Key: HIVE-4732
> URL: https://issues.apache.org/jira/browse/HIVE-4732
> Project: Hive
> Issue Type: Improvement
> Components: Serializers/Deserializers
> Reporter: Mark Wagner
> Assignee: Mohammad Kamrul Islam
> Fix For: 0.13.0
>
> Attachments: HIVE-4732.1.patch, HIVE-4732.4.patch, HIVE-4732.5.patch,
> HIVE-4732.6.patch, HIVE-4732.7.patch, HIVE-4732.v1.patch, HIVE-4732.v4.patch
>
>
> The AvroSerde spends a significant amount of time checking schema equality.
> Changing to compare hashcodes (which can be computed once then reused) will
> improve performance.
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