Hi
I'm in a real problem.In fact i have a J2EE5(JPA,Hibernate 3,EJB 3.0) project deployed at websphere 6 application server and i'm using Oracle 10 g R2.
Well i have a batch job that inserts into some table called AVERAGEBALANCE.
the problem is that when i have activated hibernate log i discoverd that the select from dual is the longest sql (it takes some times over second !!)
here is the log
11/07/2011 08:49:40,406 DEBUG SQL:DefaultQuartzScheduler-SimpleThreadPoolWorker-2 - insert into AVERAGEBALANCE (CDATE_, CUSER_, AVERAGEBALANCE_, AVERAGECREDITORBALANCE_, AVERAGEDEBITORBALANCE_, BEGINDATE_, CALCULATIONDATE_, CASHSUBACCOUNTCODE_, CASHSUBACCOUNTPK_, CODE_, ENDDATE_, NBCREDITORDAYS_, NBDEBITORDAYS_, TEDABCALCULATIONPERIODICITYPK_, VERSIONNUM_, PK_) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
11/07/2011 08:49:40,468 DEBUG SQL:DefaultQuartzScheduler-SimpleThreadPoolWorker-2 - select this_.PK_ as PK1_465_0_, this_.CDATE_ as CDATE2_465_0_, this_.CUSER_ as CUSER3_465_0_, this_.UUSER_ as UUSER4_465_0_, this_.BALANCE_ as BALANCE5_465_0_, this_.BALANCETYPE_ as BALANCET6_465_0_, this_.CASHSUBACCOUNTPK_ as CASHSUBA8_465_0_, this_.CASHSUBACCOUNTCODE_ as CASHSUBA7_465_0_, this_.CODE_ as CODE9_465_0_, this_.CURRENCYPK_ as CURRENCYPK11_465_0_, this_.CURRENCYCODE_ as CURRENC10_465_0_, this_.ENDDATE_ as ENDDATE12_465_0_, this_.EXCHANGERATE_ as EXCHANG13_465_0_, this_.ORIGINBALANCEPK_ as ORIGINB15_465_0_, this_.ORIGINBALANCECODE_ as ORIGINB14_465_0_, this_.POSITIONDATE_ as POSITIO16_465_0_, this_.REVALUATIONDATE_ as REVALUA17_465_0_, this_.SUMOFCREDITS_ as SUMOFCR18_465_0_, this_.SUMOFDEBITS_ as SUMOFDE19_465_0_, this_.UDATE_ as UDATE20_465_0_, this_.VERSIONNUM_ as VERSIONNUM21_465_0_ from CASHAB this_ where this_.CASHSUBACCOUNTCODE_=? and this_.BALANCETYPE_=? and this_.POSITIONDATE_<? and this_.ENDDATE_>=? and this_.BALANCE_<>?
11/07/2011 08:49:40,468 DEBUG SQL:DefaultQuartzScheduler-SimpleThreadPoolWorker-2 - select AVERAGEBALANCE_.nextval from dual
11/07/2011 08:49:41,484 DEBUG SQL:DefaultQuartzScheduler-SimpleThreadPoolWorker-2 - insert into AVERAGEBALANCE (CDATE_, CUSER_, AVERAGEBALANCE_, AVERAGECREDITORBALANCE_, AVERAGEDEBITORBALANCE_, BEGINDATE_, CALCULATIONDATE_, CASHSUBACCOUNTCODE_, CASHSUBACCOUNTPK_, CODE_, ENDDATE_, NBCREDITORDAYS_, NBDEBITORDAYS_, TEDABCALCULATIONPERIODICITYPK_, VERSIONNUM_, PK_) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
well i have increased the sequence cache in fact here is the creation code of the sequence.
CREATE SEQUENCE "COMPTAPERF5"."AVERAGEBALANCE_" MINVALUE 1 MAXVALUE 999999999999999999999 INCREMENT BY 1 START WITH 1 CACHE 400 NOORDER NOCYCLE ;
i think that there is some oracle parameter to tune
Thanks in advance
Edited by: B.Mansour Nizar on 11 juil. 2011 01:04
Edited by: B.Mansour Nizar on 11 juil. 2011 06:33
Edited by: B.Mansour Nizar on 11 juil. 2011 06:34
Edited by: B.Mansour Nizar on 11 juil. 2011 06:34
Edited by: B.Mansour Nizar on 11 juil. 2011 06:35
Edited by: B.Mansour Nizar on 11 juil. 2011 06:35
Edited by: B.Mansour Nizar on 11 juil. 2011 06:36
Edited by: B.Mansour Nizar on 15 juil. 2011 07:42