[HADOOP-9216] CompressionCodecFactory#getCodecClasses should trim the result of parsing by Configuration.

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.3-alpha, 0.23.6, 3.0.0-alpha1
• Fix Version/s: 2.0.3-alpha, 0.23.7
• Component/s: io
• Target Version/s: 2.0.3-alpha, 0.23.7
• Hadoop Flags: Reviewed
• Assignee: Tsuyoshi Ozawa
• Reporter: Tsuyoshi Ozawa
• Created: 15/Jan/13 21:09
• Updated: 12/May/16 18:27
• Resolved: 17/Jan/13 07:20

Description

CompressionCodecFactory#getCodecClasses doesn't trim its input.
This can confuse users of CompressionCodecFactory. For example, The setting as follows can cause error because of spaces in the values.

conf.set("io.compression.codecs",
" org.apache.hadoop.io.compress.GzipCodec , " +
" org.apache.hadoop.io.compress.DefaultCodec , " +
"org.apache.hadoop.io.compress.BZip2Codec ");

This ticket deals with this problem.