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Status Future consideration
Created by Guest
Created on Mar 18, 2016

Maintaining connections with zOS DB2

This is really for DataStage but this interface prevents that selection.

Various teams are struggling with maintaining connections with zOS DB2. The most pressing is when using the bulk loader option in the DB2 connector stage. The bulk loader builds the load file then sends the file via FTP. This process time for large loads exceeds the DB2 idle thread timeout setting established as a reasonable wait by the mainframe DB2 team. The connection to DB2 is also dropped if front end processing in the job exceeds the timeout, All connections are of course established when the job begins.

Using the Keep Conductor Connection Alive = no as recommended in the DB2 connector stage does not sustain the connection. The mainframe timeout can not be prevented by DataStage.

Adding to this connection issue, there doesn't seem to be any handshake between mainframe and unix execution so that debugging log data can be traced to see where the connection is being dropped or why. The mainframe DB2 team has no processing logs to help.

Simply increasing the timeout setting for the mainframe DB2 instance isn't practical due to BI reporting against the same data. The timeout setting is appropriate for that purpose.