The latest database version, Oracle 23ai, i.e., version 23c with AI features enabled, is powerful and brings a lot of features to view and troubleshoot different parts of the database
Once such an improvement is on the data pump utility and its
troubleshooting with all new dynamic performance views
There are a few issues while performing a data pump on large
data, such as huge single tables. With lower versions, we need to rely on log files,
live monitoring of the data pump job, server performance, and database
performance.
With all new 23ai database, the following views are
introduced, and those are helpful in troubleshooting
1. V$DATAPUMP_PROCESS_INFO
2. V$DATAPUMP_PROCESSWAIT_INFO
3. V$DATAPUMP_SESSIONWAIT_INFO
These views provide real-time information about the status
of Data Pump processes, their wait events, and session-level contentions. GV$
views are used in RAC-enabled environments, while V$ views are used for
standalone database instances
Here are the details about each view
V$DATAPUMP_PROCESS_INFO – view shows the current Data Pump processes, including both master and worker processes. It provides basic information like the program name, session ID, username, job name, status, and system process ID. This view is very useful if we use the parallel option while performing the data pump
V$DATAPUMP_PROCESSWAIT_INFO – This view helps detect contention between Data Pump processes. It shows wait events and blocking sessions. This view provides more information in case the data pump job hangs
V$DATAPUMP_SESSIONWAIT_INFO – Provides deep insights into
session-level waits during Data Pump operations, including how long the session
has been in the wait state and what it’s waiting on.
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