Mview refresh when involved table is locked

I am facing this problem.

When the refresh COMPLETE ON DEMAND of a mview starts via job
(automatically from user_jobs), as schedulled and some tables (at least
10) used in the mview are locked , the refresh also keep in a recursive lock and anything more run ...

I need to kill sessions to release process...

Among these objects used in the mview, I have tables and also others mviews
(with refresh ON COMMIT) , so , some MLOG$_ are locked.

The refresh of mview try to execute this command and stays stopped. /* QSMQ VALIDATION */ ALTER SUMMARY "SCHEMA001"."MATVIEW001" COMPILE I did a test as below and this situation did not get lock doing the refresh:

create table eri_tab
( coluna1 varchar2(30)

, coluna2 varchar2(30)
);

DROP MATERIALIZED VIEW mv_eri1;

CREATE MATERIALIZED VIEW mv_eri1
( coluna1

, coluna2

)
REFRESH COMPLETE ON DEMAND NEXT sysdate + 1/12

AS

  SELECT coluna1, coluna2
FROM eri_tab
/

insert into eri_tab values ('valor1a', 'valor1b');
insert into eri_tab values ('valor2a', 'valor2b');
insert into eri_tab values ('valor3a', 'valor3b');

at this point the table eri_tab is locked, i didnot do the COMMIT.

so, in another session I got sucess doing the mview refresh:

DECLARE
BEGIN
  dbms_refresh.refresh('"SCHEMA001"."MV_ERI1"'); END;
/

I saw in the net the parameter : QUERY_REWRITE_INTEGRITY and tried the stale_tolerated , via alter session, before start the refresh in the first scenary, with no success.

My doubt is:

Why the refresh of mview stopped running this command in the first scenary ?
/* QSMQ VALIDATION */ ALTER SUMMARY "SCHEMA001"."MATVIEW001" COMPILE and it did not occured in my sample ?

Does anyone has any experience with this situation ?

Regards
Eriovaldo

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