android sqlite 随机,Android上的随机SQLiteConnectionPool错误 如何避免？

最近我开始在我的应用程序中收到以下错误。这不是在任何特定的地方，只有当循环通过所有数据读/写功能时，我才能再现。它几乎出现在任何地方。

09-14 08:52:15.089: WARN/SQLiteConnectionPool(19268): The connection pool for database '/data/data/com.nnn/databases/data.db' has been unable to grant a connection to thread 1 (main) with flags 0x5 for 30.000002 seconds.

Connections: 0 active, 1 idle, 0 available.

而我的数据库代码如下所示：

public class DatabaseHelper extends SQLiteOpenHelper

{

private final static String LOG_TAG = "com.nnnn.data.DatabaseHelper";

private static final String DATABASE_NAME = "data.db";

private static final int DATABASE_VERSION = 260;

private static SQLiteDatabase databaseInstance;

public DatabaseHelper()

{

super(MyApplication.Me, DATABASE_NAME, null, DATABASE_VERSION);

}

public static synchronized SQLiteDatabase getDatabase()

{

if (databaseInstance == null) databaseInstance = (new DatabaseHelper()).getWritableDatabase();

return databaseInstance;

}