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From "Siying Dong (JIRA)" <j...@apache.org>
Subject [jira] Created: (HIVE-1801) HiveInputFormat or CombineHiveInputFormat always sync blocks of RCFile twice
Date Thu, 18 Nov 2010 23:29:13 GMT
HiveInputFormat or CombineHiveInputFormat always sync blocks of RCFile twice
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                 Key: HIVE-1801
                 URL: https://issues.apache.org/jira/browse/HIVE-1801
             Project: Hive
          Issue Type: Improvement
            Reporter: Siying Dong
            Assignee: Siying Dong


HiveInputFormat or CombineHiveInputFormat RCFile.Reader.sync() twice. One in getReader() and
one in initIOContext(). We can avoid the latter one by read the sync() position of the former
one.

We also sync() twice for SequenceFile but since SequenceFileReader is not a part of Hive code,
maybe we should be careful when depending on the implementation.

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