Hi there,

When I have hadoop running (version 0.20.0, Pseudo-Distributed Mode), I can not start my own java application. The exception complains that 'java.sql.SQLException: failed to connect to url "jdbc:hsqldb:hsql://localhost/hsqldb". I have to stop hadoop to start my own java application. Both my application and hadoop use hsqldb. Does anyone know why and can help me out of this problem? Or tell me where to look for hadoop hsqldb connection implementation, like which kind of hsql server mode is used in hadoop and what is the default url of hsqldb for hadoop? I looked into org.apache.hadoop.mapred.lib.db package but didn't find any clue.

   Thanks in advance!

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Best wishes

Sincerely yours

Jianwu Wang
jia...@sdsc.edu


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