[HADOOP-8901] GZip and Snappy support may not work without unversioned libraries

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.3-alpha
• Fix Version/s: 2.0.3-alpha
• Component/s: native
• Target Version/s: 2.0.3-alpha
• Tags: native
• Assignee: Colin McCabe
• Reporter: Colin McCabe
• Created: 09/Oct/12 00:12
• Updated: 03/Sep/14 23:11
• Resolved: 23/Oct/12 17:23

Description

Currently, we use dlopen to open libz.so and libsnappy.so, to get Gzip and Snappy support, respectively.

However, this is not correct; we should be dlopening libsnappy.so.1 instead. The versionless form of the shared library is not commonly installed except by development packages. Also, we may run into subtle compatibility problems if a new version of libsnappy comes out.

Thanks to Brandon Vargo for reporting this bug.

Issue Links

• is related to: HADOOP-6069 Remove explicit dynamic loading of libz in native code