I'm getting the following excpetion:
java.sql.SQLException: Protocol violation
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:145)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:190)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:286)
at oracle.jdbc.driver.T4C80all.receive(T4C80all.java:766)
at oracle.jdbc.driver.T4CPreparedStatement.do0all8(T4CPreparedStatement.java:216)
at oracle.jdbc.driver.T4CPreparedStatement.fetch(T4CPreparedStatement.java:1225)
at oracle.jdbc.driver.OracleResultSetImpl.close_or_fetch_from_next(OracleResultSetImpl.java:373)
at oracle.jdbc.driver.OracleResultSetImpl.next(OracleResultSetImpl.java:284)
The Oracle system is running 10.2.0.3.0 on Solaris 5.10. The jdbc driver is running on JDK 1.6.0_21 (if it's import the java is running on a Solaris 5.10 machine as well). I've tried several different oracle thin drivers including the latest and the one that appears to exactly match the oracle version.
The query I'm running is fairly simple: "select * from some_table order by key1, key2, key3" Then iterating through the result set and writing to a file. The table has around 12 million rows, so I expect the process is running long, but it seems to die within 5-15 mins into it. Each time I run it, it blows up on a different row, so I don't think the problem is with the data.
I found the oracle alert log but I couldn't tell that anything in there was related to my process. Still, I'm no oracle expert and perhaps there's an oracle setting I need to look at. Strangely enough, I'm running about five of these type of queries (a couple are a bit more complicated) on different connections and only two simplest ones ever get this problem.
Any help or ideas on what to look at to narrow down the problem would be appreciated.
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