Jonathan Hsieh created HBASE-15152:
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Summary: Automatically include prefix-tree module in MR jobs.
Key: HBASE-15152
URL: https://issues.apache.org/jira/browse/HBASE-15152
Project: HBase
Issue Type: Bug
Components: mapreduce
Affects Versions: 1.0.0
Reporter: Jonathan Hsieh
Assignee: Jonathan Hsieh
Fix For: 2.0.0, 1.3.0, 1.2.1
I was running some MR jobs tests and ended up with PrefixTreeCodec class not
found in the YarnChildren processes.
{code}
2016-01-21 06:24:26,844 WARN [main] mapreduce.TableMapReduceUtil(785): The
hbase-prefix-tree module jar containing PrefixTreeCodec is not present.
java.lang.ClassNotFoundException:
org.apache.hadoop.hbase.code.prefixtree.PrefixTreeCodec
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
{code}
This is related to HBASE-7434 and HBASE-7936 which address compile time
concerns. This fix makes it so that jar inclusion is done at run time, and
continues if it is not present (for mr unit tests that don't depend on it)
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