zhaoxianwei created ZEPPELIN-3688:
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Summary: Cannot inject a customized JDBC interpreter in ZEPPELIN
Key: ZEPPELIN-3688
URL: https://issues.apache.org/jira/browse/ZEPPELIN-3688
Project: Zeppelin
Issue Type: Bug
Components: Interpreters
Affects Versions: 0.8.0
Reporter: zhaoxianwei
Fix For: 0.8.1
Attachments: zeppelin.png
when I try to register a customized JDBC interpreter whose jdbc driver comes
from Huawei Data Lake Insight (DLI) service , and add all the connection
configurations it needed, it seems that it doesn't work. The connection
configurations cannot be passed to the DLI driver.
I did it according to the instructions of the official
website(http://zeppelin.apache.org/docs/0.7.2/interpreter/jdbc.html)，the only
difference is that i copied the jdbc jar to the interpreter classpath instead
of using a public maven coordinate when did *Dependency Setting* .
*The appendix is the specific message of error*
*I just compared the error message between DLI driver and postgresql driver,
and read the jdbc interpreter source code from zeppelin, it seems that the
right process is to load a dbcp pool driver first, and then the dbcp pool
driver is delegated to load the real jdbc driver （the postgresql's call stack
can explain this）, however , when using DLI driver, zeppelin directly loaded
the DLI driver instead of loading dbcp pool first resulting in the connection
configurations not being passed to the DLI driver.*
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