Kevin Liew created PHOENIX-2583:
-----------------------------------
Summary: Phoenix queryserver sends result set in response to the
wrong request
Key: PHOENIX-2583
URL: https://issues.apache.org/jira/browse/PHOENIX-2583
Project: Phoenix
Issue Type: Bug
Affects Versions: 4.6.0
Reporter: Kevin Liew
Priority: Critical
Create two tables
{code:sql}
DROP TABLE IF EXISTS SEN.VARCHAR_TABLE;
CREATE TABLE IF NOT EXISTS SEN.VARCHAR_TABLE(
KeyColumn VARCHAR(255) PRIMARY KEY,
Column1 VARCHAR(510));
UPSERT INTO SEN.VARCHAR_TABLE VALUES ("One","1");
{code}
{code:sql}
DROP TABLE IF EXISTS SEN.INTEGER_TABLE;
CREATE TABLE IF NOT EXISTS SEN.INTEGER_TABLE(
KeyColumn VARCHAR(255) PRIMARY KEY,
Column1 INTEGER);
UPSERT INTO SEN.VARCHAR_TABLE VALUES ("Two",2);
{code}
Running these two programs results in several crashes.
1. select a varchar by parameterized statement resulting in
SELECT Column1 FROM SEN.VARCHAR_TABLE WHERE KeyColumn = 'One'
{code:java}
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.PreparedStatement;
import java.sql.Statement;
public class Hello_World {
public static void main(String[] args) throws SQLException {
try {
Class.forName("org.apache.phoenix.queryserver.client.Driver");
} catch (ClassNotFoundException e) {
System.out.println("Where is your PhoenixDriver");
e.printStackTrace();
return;
}
Connection conn =
DriverManager.getConnection("jdbc:phoenix:thin:url=http://192.168.222.52:8765";);
conn.setAutoCommit(true);
String sqlStmt = "SELECT Column1 FROM SEN.VARCHAR_TABLE WHERE
KeyColumn = ?";
System.out.println("SQL Statement:\n\t" + sqlStmt);
while(true)
{
ResultSet rset = null;
//Statement stmt = conn.createStatement();
PreparedStatement stmt = conn.prepareStatement(sqlStmt);
stmt.setString(1, "One");
ResultSet rs = stmt.executeQuery();
while (rs.next()) {
String column1 = rs.getString("column1");
if (!column1.equals("1"))
{
System.out.println(column1);
}
}
}
//conn.close();
}
}
{code}
2. select an integer by parameterized statement resulting in
SELECT Column1 FROM SEN.INTEGER_TABLE WHERE KeyColumn = 'Two'
{code:java}
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.PreparedStatement;
import java.sql.Statement;
public class Hello_World {
public static void main(String[] args) throws SQLException {
try {
Class.forName("org.apache.phoenix.queryserver.client.Driver");
} catch (ClassNotFoundException e) {
System.out.println("Where is your PhoenixDriver");
e.printStackTrace();
return;
}
Connection conn =
DriverManager.getConnection("jdbc:phoenix:thin:url=http://192.168.222.52:8765";);
conn.setAutoCommit(true);
String sqlStmt = "SELECT Column1 FROM SEN.INTEGER_TABLE WHERE
KeyColumn = ?";
System.out.println("SQL Statement:\n\t" + sqlStmt);
while(true)
{
ResultSet rset = null;
//Statement stmt = conn.createStatement();
PreparedStatement stmt = conn.prepareStatement(sqlStmt);
stmt.setString(1, "Two");
ResultSet rs = stmt.executeQuery();
while (rs.next()) {
int column1 = rs.getInt("column1");
if (column1 != 2)
{
System.out.println(column1);
}
}
}
//conn.close();
}
}
{code}
There are several crashes, but the one relevant to this bug is:
{code:java}
SQL Statement:
SELECT Column1 FROM SEN.INTEGER_TABLE WHERE KeyColumn = ?
Exception in thread "main" java.lang.ClassCastException: java.lang.String
cannot be cast to java.lang.Number
at
org.apache.calcite.avatica.util.AbstractCursor$NumberAccessor.getNumber(AbstractCursor.java:661)
at
org.apache.calcite.avatica.util.AbstractCursor$BigNumberAccessor.getInt(AbstractCursor.java:602)
at
org.apache.calcite.avatica.AvaticaResultSet.getInt(AvaticaResultSet.java:314)
at Hello_World.main(Hello_World.java:36)
{code}
The queryserver is sending the result set in response to a request made from
another connection id. The statement id was not checked but there may have been
a statement id collision
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