Hi ,
    I'm a programer and studying ofbiz now. I have set up ofbize12.04 and run 
it, but some errors occurred. I think there are more than one error in here , 
please help me to fix them.Thanks very much. I attached the log info in bellow:


2014-03-09 21:08:13,500 (OFBiz-config-1) [       DatabaseUtil.java:159:ERROR] 
Unable to establish a connection with the database for helperName 
[localmysqlolap]... Error was: java.sql.SQLException: Unable to acquire a new 
connection from the pool
2014-03-09 21:08:13,500 (OFBiz-config-1) [       DatabaseUtil.java:986:ERROR] 
Unable to establish a connection with the database, no additional information 
available.
2014-03-09 21:08:13,500 (OFBiz-config-1) [       DatabaseUtil.java:197:ERROR] 
Could not get table name information from the database, aborting.
2014-03-09 21:08:25,118 (OFBiz-config-1) [       DatabaseUtil.java:159:ERROR] 
Unable to establish a connection with the database for helperName 
[localmysqltenant]... Error was: java.sql.SQLException: Unable to acquire a new 
connection from the pool
 ****************  I'm sure the ofbize can connect my local database 
succssfully and  database  is ok ****************

2014-03-09 21:13:59,789 (org.ofbiz.service.job.JobPoller@d78ab8) [         
JobManager.java:200:ERROR] 
---- exception report ----------------------------------------------------------
Transaction error trying to commit when polling and updating the JobSandbox: 
org.ofbiz.entity.transaction.GenericTransactionException: Roll back error (with 
no rollbackOnly cause found), could not commit transaction, was rolled back 
instead: javax.transaction.RollbackException: Transaction timeout (Transaction 
timeout)
Exception: org.ofbiz.entity.transaction.GenericTransactionException
Message: Roll back error (with no rollbackOnly cause found), could not commit 
transaction, was rolled back instead: javax.transaction.RollbackException: 
Transaction timeout (Transaction timeout)
---- cause ---------------------------------------------------------------------
Exception: javax.transaction.RollbackException
Message: Transaction timeout
---- stack trace ---------------------------------------------------------------
javax.transaction.RollbackException: Transaction timeout
org.apache.geronimo.transaction.manager.TransactionImpl.commit(TransactionImpl.java:269)
org.apache.geronimo.transaction.manager.TransactionManagerImpl.commit(TransactionManagerImpl.java:245)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:267)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:253)
org.ofbiz.service.job.JobManager.poll(JobManager.java:196)
org.ofbiz.service.job.JobPoller.run(JobPoller.java:90)
java.lang.Thread.run(Thread.java:724)
--------------------------------------------------------------------------------

2014-03-09 21:16:33,684 (org.ofbiz.service.job.JobPoller@d78ab8) [         
JobManager.java:200:ERROR] 
---- exception report ----------------------------------------------------------
Transaction error trying to commit when polling and updating the JobSandbox: 
org.ofbiz.entity.transaction.GenericTransactionException: Roll back error (with 
no rollbackOnly cause found), could not commit transaction, was rolled back 
instead: javax.transaction.RollbackException: Transaction timeout (Transaction 
timeout)
Exception: org.ofbiz.entity.transaction.GenericTransactionException
Message: Roll back error (with no rollbackOnly cause found), could not commit 
transaction, was rolled back instead: javax.transaction.RollbackException: 
Transaction timeout (Transaction timeout)
---- cause ---------------------------------------------------------------------
Exception: javax.transaction.RollbackException
Message: Transaction timeout
---- stack trace ---------------------------------------------------------------
javax.transaction.RollbackException: Transaction timeout
org.apache.geronimo.transaction.manager.TransactionImpl.commit(TransactionImpl.java:269)
org.apache.geronimo.transaction.manager.TransactionManagerImpl.commit(TransactionManagerImpl.java:245)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:267)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:253)
org.ofbiz.service.job.JobManager.poll(JobManager.java:196)
org.ofbiz.service.job.JobPoller.run(JobPoller.java:90)
java.lang.Thread.run(Thread.java:724)
--------------------------------------------------------------------------------

2014-03-09 21:19:03,093 (org.ofbiz.service.job.JobPoller@d78ab8) [         
JobManager.java:200:ERROR] 
---- exception report ----------------------------------------------------------
Transaction error trying to commit when polling and updating the JobSandbox: 
org.ofbiz.entity.transaction.GenericTransactionException: Roll back error (with 
no rollbackOnly cause found), could not commit transaction, was rolled back 
instead: javax.transaction.RollbackException: Transaction timeout (Transaction 
timeout)
Exception: org.ofbiz.entity.transaction.GenericTransactionException
Message: Roll back error (with no rollbackOnly cause found), could not commit 
transaction, was rolled back instead: javax.transaction.RollbackException: 
Transaction timeout (Transaction timeout)
---- cause ---------------------------------------------------------------------
Exception: javax.transaction.RollbackException
Message: Transaction timeout
---- stack trace ---------------------------------------------------------------
javax.transaction.RollbackException: Transaction timeout
org.apache.geronimo.transaction.manager.TransactionImpl.commit(TransactionImpl.java:269)
org.apache.geronimo.transaction.manager.TransactionManagerImpl.commit(TransactionManagerImpl.java:245)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:267)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:253)
org.ofbiz.service.job.JobManager.poll(JobManager.java:196)
org.ofbiz.service.job.JobPoller.run(JobPoller.java:90)
java.lang.Thread.run(Thread.java:724)
--------------------------------------------------------------------------------

2014-03-09 21:21:21,094 (org.ofbiz.service.job.JobPoller@d78ab8) [         
JobManager.java:200:ERROR] 
---- exception report ----------------------------------------------------------
Transaction error trying to commit when polling and updating the JobSandbox: 
org.ofbiz.entity.transaction.GenericTransactionException: Roll back error (with 
no rollbackOnly cause found), could not commit transaction, was rolled back 
instead: javax.transaction.RollbackException: Transaction timeout (Transaction 
timeout)
Exception: org.ofbiz.entity.transaction.GenericTransactionException
Message: Roll back error (with no rollbackOnly cause found), could not commit 
transaction, was rolled back instead: javax.transaction.RollbackException: 
Transaction timeout (Transaction timeout)
---- cause ---------------------------------------------------------------------
Exception: javax.transaction.RollbackException
Message: Transaction timeout
---- stack trace ---------------------------------------------------------------
javax.transaction.RollbackException: Transaction timeout
org.apache.geronimo.transaction.manager.TransactionImpl.commit(TransactionImpl.java:269)
org.apache.geronimo.transaction.manager.TransactionManagerImpl.commit(TransactionManagerImpl.java:245)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:267)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:253)
org.ofbiz.service.job.JobManager.poll(JobManager.java:196)
org.ofbiz.service.job.JobPoller.run(JobPoller.java:90)
java.lang.Thread.run(Thread.java:724)
--------------------------------------------------------------------------------

2014-03-09 21:23:41,203 (org.ofbiz.service.job.JobPoller@d78ab8) [         
JobManager.java:200:ERROR] 
---- exception report ----------------------------------------------------------
Transaction error trying to commit when polling and updating the JobSandbox: 
org.ofbiz.entity.transaction.GenericTransactionException: Roll back error (with 
no rollbackOnly cause found), could not commit transaction, was rolled back 
instead: javax.transaction.RollbackException: Transaction timeout (Transaction 
timeout)
Exception: org.ofbiz.entity.transaction.GenericTransactionException
Message: Roll back error (with no rollbackOnly cause found), could not commit 
transaction, was rolled back instead: javax.transaction.RollbackException: 
Transaction timeout (Transaction timeout)
---- cause ---------------------------------------------------------------------
Exception: javax.transaction.RollbackException
Message: Transaction timeout
---- stack trace ---------------------------------------------------------------
javax.transaction.RollbackException: Transaction timeout
org.apache.geronimo.transaction.manager.TransactionImpl.commit(TransactionImpl.java:269)
org.apache.geronimo.transaction.manager.TransactionManagerImpl.commit(TransactionManagerImpl.java:245)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:267)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:253)
org.ofbiz.service.job.JobManager.poll(JobManager.java:196)
org.ofbiz.service.job.JobPoller.run(JobPoller.java:90)
java.lang.Thread.run(Thread.java:724)
--------------------------------------------------------------------------------

2014-03-09 21:25:49,780 (org.ofbiz.service.job.JobPoller@d78ab8) [         
JobManager.java:200:ERROR] 
---- exception report ----------------------------------------------------------
Transaction error trying to commit when polling and updating the JobSandbox: 
org.ofbiz.entity.transaction.GenericTransactionException: Roll back error (with 
no rollbackOnly cause found), could not commit transaction, was rolled back 
instead: javax.transaction.RollbackException: Transaction timeout (Transaction 
timeout)
Exception: org.ofbiz.entity.transaction.GenericTransactionException
Message: Roll back error (with no rollbackOnly cause found), could not commit 
transaction, was rolled back instead: javax.transaction.RollbackException: 
Transaction timeout (Transaction timeout)
---- cause ---------------------------------------------------------------------
Exception: javax.transaction.RollbackException
Message: Transaction timeout
---- stack trace ---------------------------------------------------------------
javax.transaction.RollbackException: Transaction timeout
org.apache.geronimo.transaction.manager.TransactionImpl.commit(TransactionImpl.java:269)
org.apache.geronimo.transaction.manager.TransactionManagerImpl.commit(TransactionManagerImpl.java:245)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:267)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:253)
org.ofbiz.service.job.JobManager.poll(JobManager.java:196)
org.ofbiz.service.job.JobPoller.run(JobPoller.java:90)
java.lang.Thread.run(Thread.java:724)
--------------------------------------------------------------------------------

2014-03-09 21:27:57,056 (org.ofbiz.service.job.JobPoller@d78ab8) [         
JobManager.java:200:ERROR] 
---- exception report ----------------------------------------------------------
Transaction error trying to commit when polling and updating the JobSandbox: 
org.ofbiz.entity.transaction.GenericTransactionException: Roll back error (with 
no rollbackOnly cause found), could not commit transaction, was rolled back 
instead: javax.transaction.RollbackException: Transaction timeout (Transaction 
timeout)
Exception: org.ofbiz.entity.transaction.GenericTransactionException
Message: Roll back error (with no rollbackOnly cause found), could not commit 
transaction, was rolled back instead: javax.transaction.RollbackException: 
Transaction timeout (Transaction timeout)
---- cause ---------------------------------------------------------------------
Exception: javax.transaction.RollbackException
Message: Transaction timeout
---- stack trace ---------------------------------------------------------------
javax.transaction.RollbackException: Transaction timeout
org.apache.geronimo.transaction.manager.TransactionImpl.commit(TransactionImpl.java:269)
org.apache.geronimo.transaction.manager.TransactionManagerImpl.commit(TransactionManagerImpl.java:245)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:267)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:253)
org.ofbiz.service.job.JobManager.poll(JobManager.java:196)
org.ofbiz.service.job.JobPoller.run(JobPoller.java:90)
java.lang.Thread.run(Thread.java:724)
--------------------------------------------------------------------------------

2014-03-09 21:30:10,021 (org.ofbiz.service.job.JobPoller@d78ab8) [         
JobManager.java:200:ERROR] 
---- exception report ----------------------------------------------------------
Transaction error trying to commit when polling and updating the JobSandbox: 
org.ofbiz.entity.transaction.GenericTransactionException: Roll back error (with 
no rollbackOnly cause found), could not commit transaction, was rolled back 
instead: javax.transaction.RollbackException: Transaction timeout (Transaction 
timeout)
Exception: org.ofbiz.entity.transaction.GenericTransactionException
Message: Roll back error (with no rollbackOnly cause found), could not commit 
transaction, was rolled back instead: javax.transaction.RollbackException: 
Transaction timeout (Transaction timeout)
---- cause ---------------------------------------------------------------------
Exception: javax.transaction.RollbackException
Message: Transaction timeout
---- stack trace ---------------------------------------------------------------
javax.transaction.RollbackException: Transaction timeout
org.apache.geronimo.transaction.manager.TransactionImpl.commit(TransactionImpl.java:269)
org.apache.geronimo.transaction.manager.TransactionManagerImpl.commit(TransactionManagerImpl.java:245)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:267)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:253)
org.ofbiz.service.job.JobManager.poll(JobManager.java:196)
org.ofbiz.service.job.JobPoller.run(JobPoller.java:90)
java.lang.Thread.run(Thread.java:724)
--------------------------------------------------------------------------------

2014-03-09 21:32:23,945 (org.ofbiz.service.job.JobPoller@d78ab8) [         
JobManager.java:200:ERROR] 
---- exception report ----------------------------------------------------------
Transaction error trying to commit when polling and updating the JobSandbox: 
org.ofbiz.entity.transaction.GenericTransactionException: Roll back error (with 
no rollbackOnly cause found), could not commit transaction, was rolled back 
instead: javax.transaction.RollbackException: Transaction timeout (Transaction 
timeout)
Exception: org.ofbiz.entity.transaction.GenericTransactionException
Message: Roll back error (with no rollbackOnly cause found), could not commit 
transaction, was rolled back instead: javax.transaction.RollbackException: 
Transaction timeout (Transaction timeout)
---- cause ---------------------------------------------------------------------
Exception: javax.transaction.RollbackException
Message: Transaction timeout
---- stack trace ---------------------------------------------------------------
javax.transaction.RollbackException: Transaction timeout
org.apache.geronimo.transaction.manager.TransactionImpl.commit(TransactionImpl.java:269)
org.apache.geronimo.transaction.manager.TransactionManagerImpl.commit(TransactionManagerImpl.java:245)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:267)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:253)
org.ofbiz.service.job.JobManager.poll(JobManager.java:196)
org.ofbiz.service.job.JobPoller.run(JobPoller.java:90)
java.lang.Thread.run(Thread.java:724)
--------------------------------------------------------------------------------

2014-03-09 21:34:40,001 (org.ofbiz.service.job.JobPoller@d78ab8) [         
JobManager.java:200:ERROR] 
---- exception report ----------------------------------------------------------
Transaction error trying to commit when polling and updating the JobSandbox: 
org.ofbiz.entity.transaction.GenericTransactionException: Roll back error (with 
no rollbackOnly cause found), could not commit transaction, was rolled back 
instead: javax.transaction.RollbackException: Transaction timeout (Transaction 
timeout)
Exception: org.ofbiz.entity.transaction.GenericTransactionException
Message: Roll back error (with no rollbackOnly cause found), could not commit 
transaction, was rolled back instead: javax.transaction.RollbackException: 
Transaction timeout (Transaction timeout)
---- cause ---------------------------------------------------------------------
Exception: javax.transaction.RollbackException
Message: Transaction timeout
---- stack trace ---------------------------------------------------------------
javax.transaction.RollbackException: Transaction timeout
org.apache.geronimo.transaction.manager.TransactionImpl.commit(TransactionImpl.java:269)
org.apache.geronimo.transaction.manager.TransactionManagerImpl.commit(TransactionManagerImpl.java:245)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:267)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:253)
org.ofbiz.service.job.JobManager.poll(JobManager.java:196)
org.ofbiz.service.job.JobPoller.run(JobPoller.java:90)
java.lang.Thread.run(Thread.java:724)
--------------------------------------------------------------------------------

2014-03-09 21:36:51,391 (org.ofbiz.service.job.JobPoller@d78ab8) [         
JobManager.java:200:ERROR] 
---- exception report ----------------------------------------------------------
Transaction error trying to commit when polling and updating the JobSandbox: 
org.ofbiz.entity.transaction.GenericTransactionException: Roll back error (with 
no rollbackOnly cause found), could not commit transaction, was rolled back 
instead: javax.transaction.RollbackException: Transaction timeout (Transaction 
timeout)
Exception: org.ofbiz.entity.transaction.GenericTransactionException
Message: Roll back error (with no rollbackOnly cause found), could not commit 
transaction, was rolled back instead: javax.transaction.RollbackException: 
Transaction timeout (Transaction timeout)
---- cause ---------------------------------------------------------------------
Exception: javax.transaction.RollbackException
Message: Transaction timeout
---- stack trace ---------------------------------------------------------------
javax.transaction.RollbackException: Transaction timeout
org.apache.geronimo.transaction.manager.TransactionImpl.commit(TransactionImpl.java:269)
org.apache.geronimo.transaction.manager.TransactionManagerImpl.commit(TransactionManagerImpl.java:245)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:267)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:253)
org.ofbiz.service.job.JobManager.poll(JobManager.java:196)
org.ofbiz.service.job.JobPoller.run(JobPoller.java:90)
java.lang.Thread.run(Thread.java:724)
--------------------------------------------------------------------------------

2014-03-09 21:39:02,440 (org.ofbiz.service.job.JobPoller@d78ab8) [         
JobManager.java:200:ERROR] 
---- exception report ----------------------------------------------------------
Transaction error trying to commit when polling and updating the JobSandbox: 
org.ofbiz.entity.transaction.GenericTransactionException: Roll back error (with 
no rollbackOnly cause found), could not commit transaction, was rolled back 
instead: javax.transaction.RollbackException: Transaction timeout (Transaction 
timeout)
Exception: org.ofbiz.entity.transaction.GenericTransactionException
Message: Roll back error (with no rollbackOnly cause found), could not commit 
transaction, was rolled back instead: javax.transaction.RollbackException: 
Transaction timeout (Transaction timeout)
---- cause ---------------------------------------------------------------------
Exception: javax.transaction.RollbackException
Message: Transaction timeout
---- stack trace ---------------------------------------------------------------
javax.transaction.RollbackException: Transaction timeout
org.apache.geronimo.transaction.manager.TransactionImpl.commit(TransactionImpl.java:269)
org.apache.geronimo.transaction.manager.TransactionManagerImpl.commit(TransactionManagerImpl.java:245)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:267)
org.ofbiz.entity.transaction.TransactionUtil.commit(TransactionUtil.java:253)
org.ofbiz.service.job.JobManager.poll(JobManager.java:196)
org.ofbiz.service.job.JobPoller.run(JobPoller.java:90)
java.lang.Thread.run(Thread.java:724)
--------------------------------------------------------------------------------
 ****************  I don't know why and when occured these 
errors****************




                                          

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