Error Signaled In Parallel Query Server P003
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ParallelError Signaled In Parallel Query Server P008
query error ORA-12801 Oracle Database Tips by Burleson Consulting Question: When running Oracle parallel query, I get a error signaled in parallel query server p002 sporadic error like this: ERROR: ORACLE execute error: ORA-12801: error signaled in parallel query server P017 ORA-01652: unable to extend temp segment by 314 in tablespace TEMP. I understand the ORA-01652
Error Signaled In Parallel Query Server Invalid Number
as being caused by running out of space, but I do not understand the ORA-12801. Answer: Wow, P017, that's a lot of parallel query processes. Just make sure that you have enough processors to support this load. I've seen this ORA-12801 error pop-up intermittently for no apparent reason, usually when the server is especially active, and it's always the second message (in your case, error signaled in parallel query server p000 ORA-01652). MOSC note 184416.1 has details on diagnosing the ORA-12801 error. It notes that the ORA-12801 is somewhat generic and that you should look for more details in your alert.log or in trace files in the USER_DUMP_DEST or BACKGROUND_DUMP_DEST location. You can set event 10397 to get more details: ORA-12801, 00000, "error signaled in parallel query server %s" Cause: A parallel query server reached an exception condition. Action: Check the following error message for the cause, and consult your error manual for the appropriate action. *Comment: This error can be turned off with event 10397, in which case the server's actual error is signaled instead. In any case, the central question is why your parallel query was performing a sort, resulting in the ORA-01652 error? OPQ generally sorts as the final step, after the paralel processes have returned the result set to the parallel query coordinator (usually P00).The symptom solution, of course, is to increase the size of your TEMP tablespace, or better still, increase your sort_area_size. If this job is running batch, you can do this with an alter session command, as this this case, to one gig: alter ses
Joined: 11-June 09
Error Signaled In Parallel Query Server P013
Member No.: 40,925 Hi When i run merge statement, for few
Error Signaled In Parallel Query Server P001
of them m getting this below error. M trying to merge into subpartition. For few subpartition it error signaled in parallel query server p009 is working fine, for few it is throwing this error.MERGE INTO Inventory SUBPARTITION (abc_sys)*ERROR at line 1:ORA-12801: error signaled in parallel query server P003ORA-02149: Specified partition does http://www.dba-oracle.com/t_ora_12801_parallel_query.htm not existNote: 1. Subpartition exists.2. version:Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit ProductionPls reply.thanks,naw aussie_dba View Member Profile Jun 11 2009, 02:41 PM Post #2 Advanced Member Group: Members Posts: 643 Joined: 28-August 04 Member No.: 495 See related thread: http://dbaforums.org/oracle/index.php?showtopic=9701http://www.dba-oracle.com/t_ora_12801_parallel_query.htmMetaLink note 184416.1 has details on diagnosing the ORA-12801 error. It notes that the ORA-12801 http://dbaforums.org/oracle/index.php?showtopic=18180 is somewhat generic and that you should look for more details in your alert.log or in trace files in the USER_DUMP_DEST or BACKGROUND_DUMP_DESTlocation. You can set event 10397 to get more details:ORA-12801, 00000, "error signaled in parallel query server %s"Cause: A parallel query server reached an exception condition.Action: Check the following error message for the cause, and consult your error manual for the appropriate action.*Comment: This error can be turned off with event 10397, in which case the server's actual error is signaled instead. dave View Member Profile Jun 11 2009, 04:01 PM Post #3 Advanced Member Group: Members Posts: 5,208 Joined: 8-October 04 Member No.: 785 ORA-02149: Specified partition does not existself explanatory? burleson View Member Profile Jun 11 2009, 04:29 PM Post #4 Advanced Member Group: Members Posts: 13,227 Joined: 26-January 04 Member No.: 13 Hi Naw,This smells like a bug, especially since you are on 9i, when the MERGE was brand new . . .Was the partition created us
3:46 pm UTC Category: Database – Version: 8.1.7 Latest Followup You Asked Tom, Suppose I have enabled parallel query on one of https://asktom.oracle.com/pls/asktom/f%3Fp%3D100:11:0::::P11_QUESTION_ID:1027523970333 the tables out of 50 in my application..Then if I query using a join between those tables (only one of them is parallel query enabled ) then would Oracle still use the parallel query when running that query. If not, is there something like a hint to make Oracle use the parallel query against that table. error signaled eg...EMP table with 1 million rows and parallel query enabled. DEPT with 1000 rows and parallel query NOT enabled. Then the following query will it use the parallel query on EMP table. Select * from EMP, DEPT WHERE emp.deptno = dept.deptno; Thanks, Suresh and we said... Any operation that could be parallelized against that table in error signaled in any query would be a condidate for parallelization (against that table) You can always add the parallel hint to the query. As for your question -- it might, it might not. Depends on what table is driving the query. If we full scan DEPT and index access EMP, no -- most likely a serial operation. If we full scan EMP and index access DEPT -- probably. If we full scan both, probably. Easy enough to see what'll happen (dbms_stats is great for this "what if" stuff) ops$tkyte@ORA817.US.ORACLE.COM> create table emp as select * from scott.emp where 1=0; Table created. ops$tkyte@ORA817.US.ORACLE.COM> create table dept as select * from scott.dept where 1=0; Table created. ops$tkyte@ORA817.US.ORACLE.COM> ops$tkyte@ORA817.US.ORACLE.COM> alter table dept add constraint dept_pk primary key(deptno); Table altered. ops$tkyte@ORA817.US.ORACLE.COM> alter table emp add constraint emp_fk foreign key(deptno) references dept; Table altered. ops$tkyte@ORA817.US.ORACLE.COM> create index emp_fk_idx on emp(deptno); Index created. ops$tkyte@ORA817.US.ORACLE.COM> ops$tkyte@ORA817.US.ORACLE.COM> ops$tkyte@ORA817.US.ORACLE.COM> exec dbms_stats.set_table_stats( USER, 'EMP', numrows => 1000000, numblks => 100000, avgrlen=> 700 ) PL/SQL procedure successfully completed. ops$tkyte@ORA817.