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Posted to dev@hive.apache.org by "Saket Saurabh (JIRA)" <ji...@apache.org> on 2016/08/10 20:35:20 UTC
[jira] [Created] (HIVE-14514) OrcRecordUpdater should clone
writerOptions when creating delete event writers
Saket Saurabh created HIVE-14514:
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Summary: OrcRecordUpdater should clone writerOptions when creating delete event writers
Key: HIVE-14514
URL: https://issues.apache.org/jira/browse/HIVE-14514
Project: Hive
Issue Type: Improvement
Components: Transactions
Affects Versions: 2.2.0
Reporter: Saket Saurabh
Assignee: Eugene Koifman
Priority: Minor
When split-update is enabled for ACID, OrcRecordUpdater creates two sets of writers: one for the insert deltas and one for the delete deltas. The deleteEventWriter is initialized with similar writerOptions as the normal writer, except that it has a different callback handler. Due to the lack of copy constructor/ clone() method in writerOptions, the same writerOptions object is mutated to specify a different callback for the delete case. Although, this is harmless for now, but it may become a source of confusion and possible error in future. The ideal way to fix this would be to create a clone() method for writerOptions- however this requires that the parent class of WriterOptions in the OrcFile.WriterOptions should implement Cloneable or provide a copy constructor.
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