Prompt map size mismatch; abort when Oracle starts
Today, when you install Oracle10.2.0.4 on Redhat 6.4 of the DELL server and log in to the database with sqlplus, the following prompt will appear:
Map size mismatch; abort: Success, but all other functions are normal, except for this hint
Solution:
Alter system set "_ enable_NUMA_optimization" = false scope=spfile
Alter system set "_ db_block_numa" = 1 scope=spfile
SQL > shutdown immediate
SQL > startup
Col name for a40
Col value for a40
Col describ for a40
Set linesize 130
NUMA is a technology of CPU. Hardware support is required to enable it. Explain these two parameters:
SELECT x.ksppinm NAME, y.ksppstvl VALUE, x.ksppdesc describ
FROM SYS.x$ksppi x, SYS.x$ksppcv y
WHERE x.inst_id = USERENV ('Instance')
AND y.inst_id = USERENV ('Instance')
AND x.indx = y.indx
AND upper (x.ksppinm) like'% NUMA%'
NAME VALUE DESCRIB
-
_ rm_numa_sched_enable FALSE Is Resource Manager (RM) related NUMA sc
Heduled policy enabled
_ NUMA_pool_size Not specified aggregate size in bytes of NUMA pool
_ enable_NUMA_optimization TRUE Enable NUMA specific optimizations
_ NUMA_instance_mapping Not specified Set of nodes that this instance should r
Un on
_ rm_numa_simulation_pgs 0 number of PGs for numa simulation in res
Ource manager
NAME VALUE DESCRIB
-
_ rm_numa_simulation_cpus 0 number of cpus per PG for numa simulatio
N in resource manager
_ db_block_numa 2 Number of NUMA nodes
7 rows selected.