SharePlex 10.2.1 - Installation and Setup Guide

How to restore Oracle archive logs

If you decide to restore the archive logs to enable SharePlex to resume capture and replication, use the following procedure to determine the required archive logs.

1. Determine the sequence number that Capture needs to resume processing from. Capture stops when it encounters a log wrap and prints a message to the Event Log (event_log) containing the redo log sequence number it needs. You also can find out this number by querying the SHAREPLEX_ACTID table and looking at the SEQNO column, as shown in the following example:

   SQL> select * from splex.shareplex_actid;

   ACTID	SEQNO	OFFSET	AB_FLAG	QUE_SEQ_NO_1	QUE_SEQ_NO_2	COMMAND
   -----	------	--------	--------	-------------	--------------	------------
   14	114	9757200	0	672101000	0

2. Query the Oracle V$LOG_HISTORY table to find out when that sequence number was archived, then copy the logs from that point forward to the source system.

   SQL> select * from V$LOG_HISTORY;

   RECID	STAMP	THREAD#	SEQUENCE#	FIRST_CHANGE#	FIRST_TIM NEXT_CHANGE#
   -----	------	--------	--------	-------------	--------------
   111	402941650	1	111	2729501	14-JUL-00 2729548
   112	402941737	1	112	2729548	14-JUL-00 2729633
   113	402941930	1	113	2729633	14-JUL-00 2781791
   114	402942019	1	114	2781791	14-JUL-00 2836155
   115	402942106	1	115	2836155	14-JUL-00 2890539