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Parallel query error ORA-12801 OracleOra 12801 Error Signaled In Parallel Query Server P001 Oracle
Database Tips by Burleson Consulting Question: When running Oracle parallel query, I get a sporadic error like this: ora-12801 error signaled in parallel query server ora-01722 invalid number 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 as being caused by running out ora-12801 error signaled in parallel query server p006 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, ORA-01652). MOSC note 184416.1 has details on
Ora-12801: Error Signaled In Parallel Query Server P010
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 session set sort_area_size = 1,048,576,000 If you like Oracle tuning, see the book "Oracle Tuning: The Definitive Refer
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This Error Can Be Turned Off With Event 10397
you, helping each other. Join them; it only takes a minute: Sign up ORA-12801: error signaled in parallel query server P004 and ORA-01555: snapshot too old up vote 0 down vote favorite I am executing a insert http://www.dba-oracle.com/t_ora_12801_parallel_query.htm into ... select ... from ... where ... SQL and got following error using Oracle: java.sql.SQLException: ORA-12801: error signaled in parallel query server P004 ORA-01555: snapshot too old: rollback segment number 32 with name "_SYSSMU32_2039035886$" too small I read the following doc: http://www.dba-oracle.com/t_ora_12801_parallel_query.htm and http://www.dba-oracle.com/t_ora_01555_snapshot_old.htm Saying ORA-12801 is caused by no enough processors to support parallel query. ORA-01555 error relates to insufficient undo storage or a too small value for the undo_retention parameter. But how http://stackoverflow.com/questions/29579352/ora-12801-error-signaled-in-parallel-query-server-p004-and-ora-01555-snapshot can I check related parameters to avoid such issue recur? sql oracle oracle11g oracle10g share|improve this question asked Apr 11 '15 at 15:04 coderz 1,57641333 add a comment| 1 Answer 1 active oldest votes up vote 3 down vote accepted From the manual: ORA-12801: error signaled in parallel query server string Cause: A parallel query server reached an exception condition. Action: Check the following error message for the cause, and consult your error manual for the appropriate action. This is a generic error message and almost never has anything to do with not enough processors. This is an example of how the site you linked to often contains lots bad or outdated information. Maybe 17 processes was "a lot" 17 years ago, but it's not today. Unfortunately, that site is often the first result from Google. You can check the UNDO retention, which is the amount of time in seconds, like this: select value from v$parameter where name = 'undo_retention' Once again, see the manual for more information on the parameter. share|improve this answer answered Apr 11 '15 at 21:08 Jon Heller 17.2k32561 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using Facebook Sign up using Email and Password Post as a guest Name Email Post as a guest Name Email
Community Links Social Groups Pictures & Albums Members List Search Forums Show Threads Show Posts Tag Search Advanced Search Go to Page... Thread Tools Search this Thread Display Modes #1 05-29-2008, http://www.dbvisit.com/forums/showthread.php?t=102 10:06 AM Arjen Visser Dbvisit Team Join Date: Jan 2008 Location: Auckland, New https://community.oracle.com/thread/2402635 Zealand Posts: 383 Alert log error: ORA-00279 signalled during: Question: When I look at the alert log for the standby databases, I see the following message frequently: Media Recovery Log /u01/oradata/standbyarchdest/arch_1_97.arc ORA-00279 signalled during: ALTER DATABASE RECOVER LOGFILE /u01/oradata/st.. Answer: The ORA-279 is normal and expected behaviour. It is the message generated by Oracle to indicate error signaled that recovery of the standby database is taking place. It is not possible to suppress this message. Arjen Visser View Public Profile Visit Arjen Visser's homepage! Find all posts by Arjen Visser « Previous Thread | Next Thread » Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Search this Thread Advanced Search Posting Rules You may not post new error signaled in threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are Off [IMG] code is Off HTML code is Off Forum Rules Forum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home Dbvisit Announcements Dbvisit Announcements Dbvisit Standby - Technical Dbvisit Standby - 'How Do I' Questions Dbvisit Standby - Technical Questions or Issues Dbvisit Standby - Installation and Upgrades Dbvisit Standby - Graceful Switchover Dbvisit Standby - on Windows Dbvisit Standby - with RAC Dbvisit Standby - on Unix/Linux Dbvisit Standby - Archive Management log Module Dbvisit Replicate - Technical Dbvisit Replicate - Setup Dbvisit Replicate - General Dbvisit Replicate - Conflicts Data instantiation Dbvisit General Dbvisit pre-sales Dbvisit Suggestions and Feedback Standby Database and Disaster Recovery Standby Database General Discussion General Technical Oracle RAC Platform Ssh (secure shell) All times are GMT +12. The time now is 06:15 AM. Contact Us - Dbvisit : Protection - Recovery - Continuity - Archive - Top
CommunityOracle User Group CommunityTopliners CommunityOTN Speaker BureauJava CommunityError: You don't have JavaScript enabled. This tool uses JavaScript and much of it will not work correctly without it enabled. Please turn JavaScript back on and reload this page. Please enter a title. You can not post a blank message. Please type your message and try again. More discussions in General Database Discussions All PlacesDatabaseGeneral Database Discussions This discussion is archived 6 Replies Latest reply on Jun 11, 2012 10:41 PM by 735967 ORA-12801: error signaled in parallel query server P081 735967 Jun 11, 2012 9:42 PM Hi All, Please suggest me appropriate resolution for this below error Select statement : select * from v_putaway where lot_no=91245 and flag_selected=0 Error Faced : ORA-12801: error signaled in parallel query server P081 ORA-01722: invalid number Oracle : 11.2.0.3 OS : RHEL 5.4 Thanks I have the same question Show 0 Likes(0) 44492Views Tags: none (add) ora-12801Content tagged with ora-12801 This content has been marked as final. Show 6 replies 1. Re: ORA-12801: error signaled in parallel query server P081 sybrand_b Jun 11, 2012 9:57 PM (in response to 735967) lot_no is a varchar2 column and Oracle translates your query to select * from v_putaway where to_number(lot_no)=91245 and flag_selected=0 It fails as you have data problems. Solution: cleans your data, and after cleansing correct the datatype. ------------- Sybrand Bakker Senior Oracle DBA Like Show 0 Likes(0) Actions 2. Re: ORA-12801: error signaled in parallel query server P081 735967 Jun 11, 2012 10:11 PM (in response to sybrand_b) Hello sybrand_b, Thanks for the quick response, can I suggest to change the lot_no column to number? Thanks Like Show 0 Likes(0) Actions 3. Re: ORA-12801: error signaled in parallel query server P081 sb92075 Jun 11, 2012 10:14 PM (in response to 735967) user1687821 wrote: can I suggest to change the lot_no column to number?I don't know. You tell me. Can you? Are you asking for permission to do so? Like Show 0 Likes(0) Actions 4. Re: ORA-12801: error signaled in parallel query server P081 735967 Jun 11, 2012 10:18 PM (in response to sb92075) hi sb92075, Similar table with similar data under test environment works fine and returns the records. Same thing doesnot works in production after normal import of the schema... So data is similar on both servers, and the datatype is not changed nor the data is cleaned up on test server Please suggest for workaround with similar data and without c