ODBC Server Installation and Management Manual

Installing the NonStop ODBC Server
HP NonStop ODBC Server Installation and Management Manual—429395-002
2-62
Uninstalling the ODBC Driver
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The components are in fact working, but more slowly than you expect—
SQL/MP execution is taking a long time, the NonStop system is heavily loaded,
or the LAN has heavy traffic. This situation can happen either because you did
not configure correctly (for example, you intended to prestart NonStop ODBC
servers and use statement caching, but you made a mistake and this scenario
did not occur) or because the system load is heavy.
To troubleshoot a hung session, perform the following checks:
•
Observe the RUNFILTR trace to be sure that the client has a session and that
there are no unexpected errors.
•
Use the SCF to look for active sessions and to check that there is an active
session for this user.
•
If the client hangs repeatedly, turn on tracing for that user and check the trace
log. You should trace the input and output streams. Alternatively, for ODBC
clients, you can turn on ODBC driver tracing by using the HP Debug Tool. This
trace should show the last ODBC API call issued.
•
Stop the NonStop ODBC server associated with the session. If the client
returns an error, this indicates the client was hung waiting for the NonStop
ODBC server; if the client is still hung, the problem is with the client.
Uninstalling the ODBC Driver
To uninstall the 2.10 Driver of HP’s NonStop ODBC, double-click the Uninstall icon in
the HP NonStop ODBC program group. The program automatically uninstalls the
current release of HP NonStop ODBC and all associated files. Uninstall deletes the HP
NonStop ODBC driver. It does not delete the Driver Manager or existing data sources.
However, these data sources are not usable until the HP NonStop ODBC driver is
reinstalled.
Only drivers that have been installed since the most recent release can be uninstalled
using this method.