Odbc Out Of Memory Error
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a large data source through an ODBC or OLE DB connection, you might experience slow performance when querying the database or creating an extract. In many cases, the Processes tab of the Windows Task Manager might indicate that the tabprotosrv.exe or vizqlserver process is using an extremely large amount of memory. The performance issue can occur while accessing data through Tableau Desktop or through tabcmd. Common errors that can occur in this scenario If an error message occurs, it typically indicates an error 0x80004005 with a memory-related error. For example, the second error could be a memory allocation or out of memory error. Occasionally, error http://knowledgebase.progress.com/articles/Article/000036297 0x80004005 is not the primary error. In this situation, a related memory error still occurs. The errors might also reference com.tableausoftware.vizql.dll. These errors can appear in Tableau Desktop or Server log files or in alerts on the screen. Customize the driver buffer settings One possible solution to the performance errors is to configure the driver setting that specifies the number of rows at a time that the driver fetches from the database http://kb.tableau.com/articles/knowledgebase/err-large-data-odbc-oledb and returns to Tableau (driver buffer size). Important: Although changing the driver buffer size can resolve issues caused by too large or too frequent data fetches, the change might not resolve all performance-related issues. How you configure the driver depends on the data source. Typically this involves changing a setting that refers to the row fetch count. The following sections describe how to do this with a few different data sources. Note: Use the information in this article as a supplement to the documentation that was provided for your database software. Consult the database documentation for any recommended settings or other relevant information. Greenplum and PostgreSQL To change the driver setting for Greenplum for PostgreSQL, create a Tableau Datasource Customization (TDC) file and specify the row fetch count. A TDC file binds to a single data source, and it defines the capabilities for that data source. The TDC identifies the vendor and driver name of the data source provider. Note: TDC files are meant to be used in limited capacity. See the caution below for more information. Open a text editor such as Notepad, and start a new document.Paste into the document the following XML code, replacing 8.0 with your Tableau version, if applicable. pgsql-announce pgsql-bugs pgsql-docs pgsql-general pgsql-interfaces pgsql-jobs pgsql-novice pgsql-performance pgsql-php pgsql-sql pgsql-students Developer lists Regional lists Associations User groups Project lists Inactive lists IRC Local User Groups Featured Users International Sites Propaganda Resources Weekly News Re: [INTERFACES] psqlODBC/MS Access "Out of memory error (#1)" From: Byron Nikolaidis