Configuring some database parameters because of error:ORA-12801 & ORA-01652

Question

Hi,
I have a configuration issue that I really need some help because I don’t understand almost anything about oracle database management and I’m getting the errors:
ORA-12801:error signaled in parallel query server P0XX
ORA-01652:unable to extend temp segment by 128 in tablespace TEMPO1I have a server with this configuration:
SO-HP-UX
Oracle: 10.2.0.3.0
CPU’s -12
Memory:24GB
Temp01 tablespace: 20GBSome of the parameters:
Maximum sga memory is 20GB
db_block_size  8192
db_cache_size 2147483648
db_file_multiblock_read_count              32
db_name            RAID
dml_locks           2000
java_pool_size 0
log_buffer          5242880
max_enabled_roles      150
nls_length_semantics   BYTE
open_cursors   2000
optimizer_mode             ALL_ROWS
pga_aggregate_target  3221225472
processes           2000
query_rewrite_enabled              TRUE
query_rewrite_integrity             trusted
sessions              2205
sga_max_size   21474836480
shared_pool_size           117440512
sort_area_size 65536
undo_management      AUTO
undo_retention              7200
undo_tablespace            UNDOTBS1
workarea_size_policy   AUTOthe tables where created without nothing special but I did an alter table to do the following:
alter table XPTO parallel (degree 11);When do I get this error:
When I try to do a select with a NLSSORT (FIELD, 'nls_sort=binary') AS "KEY1" and it return a few million lines.
Based on this three articles and a little more reading:
http://www.dba-oracle.com/oracle_tips_sorts.htm
http://www.dba-oracle.com/t_parallel_automatic_tuning_pat.htm
http://www.dbasupport.com/oracle/ora10g/sorting_memory.shtml Should I configure the following parameters with the values that I putted or am I doing something really wrong?
pga_aggregate_target = 18GB
_pga_max_size = 18GB
_smm_px_max_size = 5.4GB
workarea_size_policy =AUTO
increase TEMP01 to 40GB
parallel_automatic_tuning=falseShould I also create a new index for my tables like:
CREATE INDEX NlSSORT_index ON My_table (NLSSORT (msisdn, 'nls_sort=binary')); because of this queries? I have an index: “msisdn, second_field” that are primary key for all fields.
Thanks,
Ricardo Tomás

Answer 1

Somewhere in your problem you say you altered your table to use parallel 11.
alter table XPTO parallel (degree 11);{code}Maybe you can try to reduce your degree.<br /><br />Instead of using 11, you could use degree 4.