SQOOP  : mapred.FileAlreadyExistsException : Output directory
Sometimes when you import data from RDBMS to Hadoop via Sqoop you will see this error. org.apache.hadoop.mapred.FileAlreadyExistsException: Output directory hdfs://hadoopcluster/user/username/importtable  already exists Solution: $ hdfs dfs -rm -r -skipTrash  hdfs://hadoopcluster/user/username/importtable Reason: When Sqoop is used for Importing data, sqoop creates a temporary file under  home directory and later deletes those files. Sometimes due to some issue,… (0 comment)

A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 – Error Locating Server/Instance Specified)  I got this error when… (0 comment)

SSIS 2005 Business Intelligence Unable to instantiate XML DOM document, please verify that MSXML binaries are properly installed and registered.  Other variations are  Failed to save package file “.dtsx” with error 0x8002801D “Library not registered.” The reason you see this error is because MSXML got corrupted. The fix is 1. Close Studio / Business Intelligence… (2 comments)

Could not load type  Namespace.Class or Global.asax This is one of the annoying error messages in an Asp.net application.  Few verifications can fix this error. 1. Make sure you have right Asp.net version in IIS 2. Make sure the Application Root Namespace and Inherits=”” (on .aspx page) are the same (including case) 3. If you… (0 comment)

Server Application Unavailable The web application you are attempting to access on this web server is currently unavailable.  Please hit the “Refresh” button in your web browser to retry your request. Administrator Note: An error message detailing the cause of this specific request failure can be found in the application event log of the web… (0 comment)