Huge archive log generation

Finding the root cause of sudden increase in the archive log generation on the database.

Find tables that have maximum number of changes during the period there was huge archive generation.

SELECT to_char(begin_interval_time,'YYYY_MM_DD HH24:MI') snap_time,
FROM dba_hist_seg_stat dhss,
dba_hist_seg_stat_obj dhsso,
dba_hist_snapshot dhs
WHERE dhs.snap_id = dhss.snap_id
AND dhs.instance_number = dhss.instance_number
AND dhss.obj# = dhsso.obj#
AND dhss.dataobj# = dhsso.dataobj#
AND begin_interval_time BETWEEN to_date('2015_05_23 12','YYYY_MM_DD HH24')
AND to_date('2015_05_25 12','YYYY_MM_DD HH24')
GROUP BY to_char(begin_interval_time,'YYYY_MM_DD HH24:MI'),
dhsso.object_name order by SUM(db_block_changes_delta) desc;



Failure in the Forms Server during startup

Error: FRM-92101: There was a failure in the Forms Server during startup. This could happen due to invalid configuration. Please look into the web-server log file for details.

Java Exception
oracle.forms.net.ConnectionException:Forms sessionfailed during startup:no response from runtime process
at oracle.forms.net.ConnectionException.createConnectionException(Unknown Source)
at oracle.forms.net.HTTPNStream.getResponse(Unknown source)
at oracle.forms.net.HTTPNStream.doFlush(Unknown Source)
at oracle.forms.net.HTTPNStream.flush(Unknown Source)
at java.io.DataOutputStream.flush(Unknown source)


Concurrent Processing Server

There are reporting programs and data updating programs that need to run either periodically, or on an ad hoc basis. These programs, which run in the background while users continue to work on other tasks are run using the Concurrent Processing architecture. Concurrent Processing is an Oracle E-Business Suite feature that allows these non–interactive and potentially long-running functions to be executed efficiently alongside interactive operations on a specialized server, the Concurrent Processing Server.
Processes that run on the Concurrent Processing server are called Concurrent Requests.
When you submit such a request, either through HTML-based or Forms-based applications, a row is inserted into a database table specifying the program to be run. A Concurrent Manager then reads the applicable requests in the table, and starts the associated concurrent program.

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