Re: problem with storing BLOBs larger then 2MB

Might be a JVM error. There are usually flags to control how
much stack and heap is avail to the JVM. I have set these
on Sun JVM before to higher than default values.

At 02:19 PM 2/13/2002 +0100, Michal Josifek wrote:
>Hello,
>I have this problem. I need to store some files into my DB and there is (I
>mean) a problem with last (from jdbc.postgresql.org) stable jdbc driver
>(stable driver for pgsql 7.2, java2). When I try to store file larger than
>2MB (2 132 220), exception
>
>java.lang.OutOfMemoryError
>         <<no stack trace available>>
>Exception in thread "main"
>
>occured on line "executeUpdate()".
>
>
>Thanks for help
>
>Michal Josifek
>
>
>
>
>Client computer:
>JDBC driver: last stable from jdbc.postgresql.org
>OS: w2k
>JDK: Sun 1.3.1_01
>
>Server computer:
>DB: stable 7.2
>OS: Linux RH 7.2
>
>
>
>
>
>Table SQL:
>
>CREATE TABLE "files" (
>"id" int4 DEFAULT nextval('"files_id_seq"'::text) NOT NULL,
>"name" varchar(250),
>"size" int4,
>"file" bytea,
>"note" varchar(50),
>CONSTRAINT "files_pkey" PRIMARY KEY ("id")
>) WITHOUT OIDS;
>
>
>
>
>
>
>Sample code:
>
>/*
>  * db_test.java
>  *
>  */
>
>package tests;
>
>/**
>  *
>  * @author  Michal
>  * @version
>  */
>
>import java.util.*;
>import java.util.zip.*;
>import java.sql.*;
>import java.io.*;
>
>public class db_test {
>  private Connection conn;
>
>  /** Creates new db_test */
>     public db_test() {
>     }
>
>
>  public void writeFile(String strFileName,String strNote) throws
> java.lang.Exception {
>
>   File fil = new File(strFileName);
>   FileInputStream fis = new FileInputStream(fil);
>   System.out.println(fil.length());
>   PreparedStatement ps;
>
>    ps = this.conn.prepareStatement("insert into files
> (name,size,file,note) values(?, ?, ?, ?)");
>    ps.setString(1,fil.getName());
>    ps.setInt(2,(int)fil.length());
>    ps.setBinaryStream(3,fis,(int)fil.length());
>    ps.setString(4,strNote);
>
>   ps.executeUpdate();  // EXCEPTION LINE !!!!!
>   ps.close();
>   fis.close();
>   this.conn.commit();
>  }
>
>  /**
>    * @param args the command line arguments
>   */
>     public static void main (String args[]) throws java.lang.Exception {
>   Class.forName("org.postgresql.Driver");
>
>   db_test dbts = new db_test();
>
>   dbts.conn =
> DriverManager.getConnection("jdbc:postgresql://192.168.30.190:5432/postgres","user","pass");
>   dbts.conn.setAutoCommit(false);
>
>   dbts.writeFile("d:/java/openssl.tar.gz","Note");
>
>   dbts.conn.close();
>
>
>    }
>
>}
>
>
>
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