[HADOOP-11418] Property "io.compression.codec.lzo.class" does not work with other value besides default

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.6.0
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: io
• Labels: BB2015-05-RFC
• Target Version/s: 2.8.0
• Hadoop Flags: Reviewed
• Assignee: Yuanbo Liu
• Reporter: fang fang chen
• Created: 17/Dec/14 11:00
• Updated: 30/Aug/16 01:31
• Resolved: 25/Apr/16 14:00

Description

From following code, seems "io.compression.codec.lzo.class" does not work for other codec besides default. Hadoop will always treat it as defaultClazz. I think it is a bug. Please let me know if this is a work as design thing. Thanks
77 private static final String defaultClazz =
78 "org.apache.hadoop.io.compress.LzoCodec";

82 public synchronized boolean isSupported() {
83 if (!checked) {
84 checked = true;
85 String extClazz =
86 (conf.get(CONF_LZO_CLASS) == null ? System
87 .getProperty(CONF_LZO_CLASS) : null);
88 String clazz = (extClazz != null) ? extClazz : defaultClazz;

Issue Links

• blocks: PIG-4341 Add CMX support to pig.tmpfilecompression.codec