[HADOOP-14346] CryptoOutputStream throws IOException on flush() if stream is closed

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.7.3
• Fix Version/s: 2.9.0, 3.0.0-alpha4, 2.8.2
• Flags: Patch
• Assignee: Pierre Lacave
• Reporter: Pierre Lacave
• Created: 22/Apr/17 19:51
• Updated: 08/Jun/17 00:13
• Resolved: 27/Apr/17 11:21

Description

With Druid and Hadoop 2.7.3 I see that calls to flush() on a closed CryptoOutputStream throws IOException.

Although flushing closed stream is dodgy, the culprit is actually CryptoOutputStream, according to the java documentation it look actually authorised.

The OutputStream java doc (http://docs.oracle.com/javase/8/docs/api/java/io/OutputStream.html#flush()) shows that flush should behave like close(), which allows being called on a closed stream without exception (as opposed to write() and others which clearly says should throw an exception)