Integrated Extract Replicates Parallel DML Incorrectly
(Doc ID 2703924.1)
Last updated on APRIL 17, 2023
Applies to:
Oracle GoldenGate - Version 19.1.0.0.0 and laterInformation in this document applies to any platform.
Symptoms
Golden Gate Integrated Extract replicates parallel DML incorrectly: the TransInd of last record has "x01" value instead of "x02".
Consequently the replicat has not been replicating the parallel transaction until the next transaction comes.
Actually the parallel transaction is "merged" with next transaction on target.
alter session enable parallel dml;
alter session enable parallel query;
insert /*+ NOAPPEND PARALLEL(a 16) */ into gg19S.tab a select /*+ PARALLEL(b 16) */ * from gg19S.tab1 b;
commit;
Source table count after above insert completed:
=====================================
SQL> --------1000 records
select count(*) from gg19S.tab;SQL>
COUNT(*)
----------
1000
Target table count:
===================
SQL> -----here Zero record waiting
select count(*) from gg19T.tab;SQL>
COUNT(*)
----------
0
And also replicat side time since checkpoint is keep increasing until unless I insert one more record in this table
Or any other table and the moment I insert a record replicat applied all 1000records+1record immediate and
Time since checkpoint gone now and looks strange behavior.
GGSCI (test) 1> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING EXTIE 00:00:09 00:00:04
REPLICAT RUNNING REPDUE 00:00:00 14:28:42 >>>>>>>>>>>>>>>>>>>>>>indefinite time since checkpoint lag here
And then inserted single record:
SQL> insert into gg19S.tab (id,number_value) values(3,3);
1 row created.
SQL> commit;
Commit complete.
And then i can see time since checkpoint gone on replicat side and all records got replicated
the movement i inserted another single record in same table:
now replicat status:
=============
GGSCI (test) 1> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING EXTIE 00:00:06 00:00:03
REPLICAT RUNNING REPDUE 00:00:00 00:00:03 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>no time since checkpoint lag now
Now source table count:
================
SQL> select count(*) from gg19S.tab;
COUNT(*)
----------
1001
Now target table count:
================
SQL> select count(*) from gg19T.tab;
COUNT(*)
----------
1001
Changes
Cause
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In this Document
Symptoms |
Changes |
Cause |
Solution |
References |