Forgive me if I've misunderstood something, but I thought MySQL replication was Master->Slave, and clustering was Master->Master...
I'm also running MySQL cluster, with 3 ASSP machines writing to the cluster, and I've never seen any (MySQL related ) errors, let alone this particular error.... If your running cluster, did you set the table types to NDBCLUSTER? Steve Sent from my iPhone On 02.12.2009, at 20:24, "Thomas Eckardt/eck" <thomas.ecka...@thockar.com > wrote: > Dirk, > >> I think a solution could be using "REPLACE INTO" or "INSERT IGNORE >> INTO" >> instead of "INSERT INTO". > > "INSERT INTO" is non standard SQL - it is MySQL unique - not known > by any > other DB engine. > > The following could happen in time order: > > ASSP1 writes a record > Master1 sends the record to Slave2 > ASSP2 writes the same record (because he has an equal connection > from the > same host, sender ...) > Slave2 wants to write the record from replication respository - and > failes > because the record already exists > > Because the replication in MySQL is asynchron, you as DB-admin has > to make > sure that the DB components (Master & Slave) get rid of duplicate > keys. > How ever, assp checks before writing a record if it has to do an > 'UPDATE' > or an 'INSERT'. An UPDATE makes no problem, because the record is > locked. > An INSERT could fail, if the SLAVE writes the same record just in the > moment between the existency check and the record write of assp. > > Thomas > > > > > "Dirk Assum" <d...@http.net> > 02.12.2009 15:25 > Bitte antworten an > ASSP development mailing list <assp-test@lists.sourceforge.net> > > > An > <assp-test@lists.sourceforge.net> > Kopie > > Thema > [Assp-test] MySQL Duplicate entry problem > > > > > > > Hi all, > > I've two servers running ASSP 2.0.1(RC 0.6.04) (sorry for being > behind) > each connected to a local MySQL database. > MySQL is setup with master-master replication. > > The replication fails very often because of duplicate entries: > > [...] > [ERROR] Slave: Error 'Duplicate entry '1.2.3.4' for key 1' on query. > Default database: 'assp'. Query: 'insert into PBBlack > (pkey,pvalue,pfrozen) values ('1.2.3.4','1259760853 1259760853 1 5 > 1.2.3.4 IPinHELO','0')', Error_code: 1062 > [ERROR] Slave: Error 'Duplicate entry '1.2.3.4' for key 1' on query. > Default database: 'assp'. Query: 'insert into RWLCache > (pkey,pvalue,pfrozen) values ('1.2.3.4','1259760854 2','0')', > Error_code: 1062 > [ERROR] Slave: Error 'Duplicate entry 'nkoch...@gmx.de' for key 1' on > query. Default database: 'assp'. Query: 'insert into PBTrap > (pkey,pvalue,pfrozen) values ('xxx...@gmx.de','1259760877 1259760877 > 1','0')', Error_code: 1062 > [...] > > I think a solution could be using "REPLACE INTO" or "INSERT IGNORE > INTO" > instead of "INSERT INTO". > > Dirk > > > > --- > --- > --- > --------------------------------------------------------------------- > Join us December 9, 2009 for the Red Hat Virtual Experience, > a free event focused on virtualization and cloud computing. > Attend in-depth sessions from your desk. Your couch. Anywhere. > http://p.sf.net/sfu/redhat-sfdev2dev > _______________________________________________ > Assp-test mailing list > Assp-test@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/assp-test > > > > > DISCLAIMER: > ******************************************************* > This email and any files transmitted with it may be confidential, > legally > privileged and protected in law and are intended solely for the use > of the > > individual to whom it is addressed. > This email was multiple times scanned for viruses. There should be no > known virus in this email! > ******************************************************* > > > --- > --- > --- > --------------------------------------------------------------------- > Join us December 9, 2009 for the Red Hat Virtual Experience, > a free event focused on virtualization and cloud computing. > Attend in-depth sessions from your desk. Your couch. Anywhere. > http://p.sf.net/sfu/redhat-sfdev2dev > _______________________________________________ > Assp-test mailing list > Assp-test@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/assp-test ------------------------------------------------------------------------------ Join us December 9, 2009 for the Red Hat Virtual Experience, a free event focused on virtualization and cloud computing. Attend in-depth sessions from your desk. Your couch. Anywhere. http://p.sf.net/sfu/redhat-sfdev2dev _______________________________________________ Assp-test mailing list Assp-test@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/assp-test