Time Since Chkpt and Lag at Chkpt from replicat keep increasing
Program Status Group Lag at Chkpt Time Since Chkpt REPLICAT RUNNING R_NEW12C 03:49:45 06:37:47
This occurs for due to the following reasons:
Delivering a long running transaction Waiting on a full table scan Blocked by another sessions Primary extract lag or pump lag keeps increasing
Is There a Way to Make Long-running Transactions Checkpoint? (Doc ID 969684.1)
The tradeoff with GROUPTRANSOPS is with efficiency. The tradeoff with MAXTRANSOPS is efficiency and transaction integrity.
There are no long running transaction from the extract and is monitored using WARNLONGTRANS 15m, CHECKINTERVAL 3m.
grep "Long Running Transaction" dirrpt/E_OLD10G.rpt
My suspicion is FTS, but how to find out?
SQL> r
1 select
2 -- SQL_ID,PLAN_HASH_VALUE,
3 OBJECT_OWNER,OBJECT_NAME, min(TIMESTAMP) min_ts, max(TIMESTAMP) max_ts, count(*) ct
4 from DBA_HIST_SQL_PLAN
5 where operation='TABLE ACCESS'
6 and options='FULL'
7 and NOT REGEXP_LIKE(object_owner,'SYS|SYSTEM|DBSNMP')
8 and TIMESTAMP > TO_DATE('01-JUN-2017','DD-MON-YYYY')
9 group by
10 -- SQL_ID,PLAN_HASH_VALUE,
11 OBJECT_OWNER,OBJECT_NAME
12 order by count(*), OBJECT_OWNER,OBJECT_NAME
13*
OBJECT_OWNER OBJECT_NAME MIN_TS MAX_TS CT
-------------------- ------------------------------ -------------------- -------------------- ----------
XXX THISISAREALLYLONGTABLENAME 01-JUN-2017 00:01:00 11-JUN-2017 02:55:36 114
SQL> select index_name from dba_indexes where table_name='THISISAREALLYLONGTABLENAME';
no rows selected
SQL>
