overhead in memory tables

Hello. We have a table using the memory engine and we notice in PMA that the overhead continues grow over time. Normally we'd optimize with such an issue but that is not applicable to memory based tables. So... does this pose a problem for long term use of the table? If so, is there a

Multi slave-single master

Good day all I just have a quick question in order to confirm something.. If I remember correctly, one master are allowed to have more than one slave server (i.e. serverA can be master to both serverB and serverC) Am I correct in this matter? We are busy with a

Re: Multi slave-single master

As far as I know your correcct. You can set as much slave servers as you need. -- João Cândido de Souza Neto Machiel Richards machi...@rdc.co.za escreveu na mensagem news:1297774004.1798.25.camel@machielr-laptop... Good day all I just have a quick question in order to confirm

Re: CR: add support of interactive transactions for webclients

I can't speak for the MySQL people, but in my view your workaround is the correct way of implementing this. It is not the database's job to keep track of which user wants to keep what session open, and HTTP is stateless by design. Keeping transactions open for relatively long periods of time would

Re: overhead in memory tables

What particular overhead is growing ? :-) On Tue, Feb 15, 2011 at 10:11 AM, Geoff Galitz ge...@galitz.org wrote: Hello. We have a table using the memory engine and we notice in PMA that the overhead continues grow over time. Normally we'd optimize with such an issue but that is not

Re: Insert only if the entry doesn't exist

Hi! Andre Polykanine wrote: Hello Rolando, So if I do INSERT IGNORE INTO `Votes` SET `EntryId`='12345', UserId`='789'; it *won't* insert the second row if there's a row with EntryId set to 12345 and UserId set to 789? If you want to have at most one vote per user on any entry, IMO you

RE: Multi slave-single master

Absolutely true. We have a master/slave pair and a secondary slave that is our 'live backup' and we take offline every night to rsync the tarballs to tape backup too. When it comes online, it syncs up with master. Rinse repeat. Works awesome and seemless. -Original Message- From: João

Limit of Mysql

Dear all, I want to know the upper limit of mysql after which Mysql-5.* fails to handle large amount of data ( 100's of GB or 100's of TB's ) . After which we have to move to some NoSQL databases ( Hadoop, Hive , Hbase). Currently we have 100 of GB's data in Mysql -5.1 RDBMS. Is anyone