The Altair Community is migrating to a new platform to provide a better experience for you. In preparation for the migration, the Altair Community is on read-only mode from October 28 - November 6, 2024. Technical support via cases will continue to work as is. For any urgent requests from Students/Faculty members, please submit the form linked here
"Error rendering meta data"
Contributor II
Hi there,
I am trying to use the stream database node to import data from MySQL via JDBC, but unfortunately I get an error saying "Error rendering meta data" in the results tab. However in the data tab it seems like the import went well.
Thats the corresponding log entry:AM WARNING: Error creating renderer: java.lang.RuntimeException: Cannot retrieve data from database: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed.
Thanks in advance for your ideas.
Best regards
hagen
I am trying to use the stream database node to import data from MySQL via JDBC, but unfortunately I get an error saying "Error rendering meta data" in the results tab. However in the data tab it seems like the import went well.
Thats the corresponding log entry:AM WARNING: Error creating renderer: java.lang.RuntimeException: Cannot retrieve data from database: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed.
Thanks in advance for your ideas.
Best regards
hagen
Tagged:
0
Answers
Seems that this is not a rapid miner issue, because it works fine if I reduce the number of rows in the table to a value such as 100. Any ideas?
Best regards