Andrew Purtell created HBASE-13106:
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Summary: Ensure endpoint-only table coprocessors can be
dynamically loaded
Key: HBASE-13106
URL: https://issues.apache.org/jira/browse/HBASE-13106
Project: HBase
Issue Type: Test
Reporter: Andrew Purtell
Priority: Trivial
Fix For: 2.0.0, 1.0.1, 1.1.0, 0.98.11
I came across the blog post
http://www.3pillarglobal.com/insights/hbase-coprocessors and this interesting
bit:
{quote}
This means that you can load both Observer and Endpoint Coprocessor statically
using the following Method of HTableDescriptor:
{noformat}
addCoprocessor(String className, org.apache.hadoop.fs.Path jarFilePath, int
priority, Map<String,String> kvs) throws IOException
{noformat}
In my case, the above method worked fine for Observer Coprocessor *but didn’t
work for Endpoint Coprocessor, causing the table to become unavailable and
finally I had to restart my HBase*. The same Endpoint Coprocessor worked fine
when loaded statically. Use the above method for Endpoint Coprocessor with
caution.
{quote}
To check this I wrote a test, attached. It passes, all seems ok. Guessing the
complaint was due to user error, probably jar placement/path issues.
Let's still commit the test.
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