Test case for a small disk space leak.

8414de9c · Thomas Mueller · 8221deaa · 8414de9c · 8414de9c
--- a/h2/src/test/org/h2/test/todo/TestDiskSpaceLeak.java
+++ b/h2/src/test/org/h2/test/todo/TestDiskSpaceLeak.java
+/*
+ * Copyright 2004-2010 H2 Group. Multiple-Licensed under the H2 License,
+ * Version 1.0, and under the Eclipse Public License, Version 1.0
+ * (http://h2database.com/html/license.html).
+ * Initial Developer: H2 Group
+ */
+package org.h2.test.todo;
+
+import java.io.File;
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import org.h2.jdbc.JdbcConnection;
+import org.h2.tools.DeleteDbFiles;
+import org.h2.tools.Recover;
+import org.h2.util.JdbcUtils;
+
+/**
+ * A test to detect disk space leaks when killing a process.
+ */
+public class TestDiskSpaceLeak {
+
+    public static void main(String... args) throws Exception {
+        System.setProperty("h2.lobInDatabase", "true");
+        DeleteDbFiles.execute("data", null, true);
+        Class.forName("org.h2.Driver");
+        Connection conn;
+        long before = 0;
+        for (int i = 0; i < 10; i++) {
+            conn = DriverManager.getConnection("jdbc:h2:data/test");
+            ResultSet rs;
+            rs = conn.createStatement().executeQuery(
+                    "select count(*) from information_schema.lobs");
+            rs.next();
+            System.out.println("lobs: " + rs.getInt(1));
+            rs = conn.createStatement().executeQuery(
+                    "select count(*) from information_schema.lob_map");
+            rs.next();
+            System.out.println("lob_map: " + rs.getInt(1));
+            rs = conn.createStatement().executeQuery(
+                    "select count(*) from information_schema.lob_data");
+            rs.next();
+            System.out.println("lob_data: " + rs.getInt(1));
+            conn.close();
+            Recover.execute("data", "test");
+            new File("data/test.h2.sql").renameTo(new File("data/test." + i + ".sql"));
+            conn = DriverManager.getConnection("jdbc:h2:data/test");
+            // ((JdbcConnection) conn).setPowerOffCount(i);
+            ((JdbcConnection) conn).setPowerOffCount(28);
+            String last = "connect";
+            try {
+                conn.createStatement().execute("drop table test if exists");
+                last = "drop";
+                conn.createStatement().execute("create table test(id identity, b blob)");
+                last = "create";
+                conn.createStatement().execute("insert into test values(1, space(10000))");
+                last = "insert";
+                conn.createStatement().execute("delete from test");
+                last = "delete";
+                conn.createStatement().execute("insert into test values(1, space(10000))");
+                last = "insert2";
+                conn.createStatement().execute("delete from test");
+                last = "delete2";
+            } catch (SQLException e) {
+                // ignore
+            } finally {
+                JdbcUtils.closeSilently(conn);
+            }
+            long now = new File("data/test.h2.db").length();
+            long diff = now - before;
+            before = now;
+            System.out.println(now + " " + diff + " " + i + " " + last);
+        }
+    }
+}
--- a/h2/src/test/org/h2/test/todo/package.html
+++ b/h2/src/test/org/h2/test/todo/package.html
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<!--
+Copyright 2004-2010 H2 Group. Multiple-Licensed under the H2 License, Version 1.0,
+and under the Eclipse Public License, Version 1.0
+(http://h2database.com/html/license.html).
+Initial Developer: H2 Group
+-->
+<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
+<head><meta http-equiv="Content-Type" content="text/html;charset=utf-8" /><title>
+Javadoc package documentation
+</title></head><body style="font: 9pt/130% Tahoma, Arial, Helvetica, sans-serif; font-weight: normal;"><p>
+
+Documentation and tests for open issues.
+
+</p></body></html>
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