IT31090: SIMPLE EVALUATION ERRORS ON A SINGLE REPLICATE CAN FORCE ALL OF ER TO SHUT DOWN

APAR status

• Closed as program error.

Error description

• Take the following test case:
  
  create table t1 (c1 int, c2 char(4)) lock mode row;
  create unique index t1_idx1 on t1(c1);
  alter table t1 add constraint primary key (c1) constraint t1_pk;
  
  Then created the following replicate on the table:
  
  cdr def repl -c g_er1 -C always -M g_er1 -S row er1_t1_rep "P
  db1@g_er1:informix.t1" "select * from t1 where c2 in
  (1,2,3,4,5)" "R db1@g_er2:informix.t1" "select * from t1 where
  c2 in (1,2,3,4,5)"
  
  cdr def repl -c g_er2 -C always -M g_er2 -S row er2_t1_rep "P
  db1@g_er2:informix.t1" "select * from t1 where c2 in
  (1,2,3,4,5)" "R db1@g_er1:informix.t1" "select * from t1 where
  c2 in (1,2,3,4,5)"
  
  Note, that c2 is a character column but the where clause in the
  define replicate is using integer values because there are no
  quotes around the numbers in the "in clause".
  
  Then insert the following row on 1 side to get replicated.
  
  insert into t1 values(4,"3");
  
  Then do the following update statement:
  
  update t1
  set c2 = "a"
  where c1 = 4;
  
  When the update is processed by ER, it will shutdown ER with the
  following error in the MSGPATH file:
  
  11:00:33  Error - ER has encountered a fatal error and must shut
  down
  11:00:33  ER encountered a fatal error while evaluating
  replicate er1_t1_rep
            SQLCODE:-1213 ISAMCODE:0
  
  So at this point, ER is down and would need to do a cleanstart
  to skip trying to process the update that changed the column
  from a numeric value to a character value.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Users of Informix Server prior to 12.10.xC14 and 14.10.xC4.  *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See Error Description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Update to Informix Server 12.10.xC14 or 14.10.xC4 (when      *
  * available).                                                  *
  ****************************************************************
  

Problem conclusion

• Fixed in Informix Server 12.10.xC14 and 14.10.xC4.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  INFORMIX SERVER

• Fixed component ID

  5725A3900

Applicable component levels