Comments on: Oracle’s Secret New Feature: Educated Guesses http://www.pythian.com/blogs/1246/oracles-secret-new-feature-educated-guesses News and views from Pythian DBAs Wed, 7 Jan 2009 12:19:58 +0000 http://wordpress.org/?v=2.6.5 By: Another round of discussion on in-memory OLTP data management | DBMS2 -- DataBase Management System Services http://www.pythian.com/blogs/1246/oracles-secret-new-feature-educated-guesses#comment-281916 Another round of discussion on in-memory OLTP data management | DBMS2 -- DataBase Management System Services Thu, 25 Sep 2008 19:41:28 +0000 http://www.pythian.com/blogs/1246/oracles-secret-new-feature-educated-guesses#comment-281916 [...] Some incorrect speculation shortly before the announcement focused on the possibility of OLTP without disk, which clearly would speed things up a lot. I interpret that in part as being wishful [...] […] Some incorrect speculation shortly before the announcement focused on the possibility of OLTP without disk, which clearly would speed things up a lot. I interpret that in part as being wishful […]

]]> By: Doug's Oracle Blog http://www.pythian.com/blogs/1246/oracles-secret-new-feature-educated-guesses#comment-281886 Doug's Oracle Blog Thu, 25 Sep 2008 18:16:30 +0000 http://www.pythian.com/blogs/1246/oracles-secret-new-feature-educated-guesses#comment-281886 [...] everyone guessed so wrong, that they were covering their embarassment (and, really, as I posted on Christo's theory blog, a very close version of this already existed here, in Luke Lonergan's comment.)I suppose you could [...] […] everyone guessed so wrong, that they were covering their embarassment (and, really, as I posted on Christo’s theory blog, a very close version of this already existed here, in Luke Lonergan’s comment.)I suppose you could […]

]]> By: Dan Norris http://www.pythian.com/blogs/1246/oracles-secret-new-feature-educated-guesses#comment-281563 Dan Norris Wed, 24 Sep 2008 21:57:41 +0000 http://www.pythian.com/blogs/1246/oracles-secret-new-feature-educated-guesses#comment-281563 @Anjo RAC isn't going nowhere, but instead they've been busy with 11gR2 stuff and no one is yet talking about those new features yet as I don't think they're finalized. However, I think it's safe to assume that while 11gR1 was a bit of a yawn from a RAC perspective, 11gR2 will give RAC followers something(s) to talk about for sure. @Anjo RAC isn’t going nowhere, but instead they’ve been busy with 11gR2 stuff and no one is yet talking about those new features yet as I don’t think they’re finalized. However, I think it’s safe to assume that while 11gR1 was a bit of a yawn from a RAC perspective, 11gR2 will give RAC followers something(s) to talk about for sure.

]]> By: Oracle Open World 2008 Diaries: the X Preview http://www.pythian.com/blogs/1246/oracles-secret-new-feature-educated-guesses#comment-281509 Oracle Open World 2008 Diaries: the X Preview Wed, 24 Sep 2008 19:08:28 +0000 http://www.pythian.com/blogs/1246/oracles-secret-new-feature-educated-guesses#comment-281509 [...] of buzz about the X key note that will be just in couple hours and even non-OOW attendees are rumoring about [...] […] of buzz about the X key note that will be just in couple hours and even non-OOW attendees are rumoring about […]

]]> By: Doug Burns http://www.pythian.com/blogs/1246/oracles-secret-new-feature-educated-guesses#comment-281217 Doug Burns Wed, 24 Sep 2008 00:20:59 +0000 http://www.pythian.com/blogs/1246/oracles-secret-new-feature-educated-guesses#comment-281217 I know nothing, but Luke Lornegan's comment here seems quite specific in naming hardware that might be part of this. http://www.dbms2.com/2008/09/06/sans-vs-das-in-mpp-data-warehousing/ Best wait until tomorrow, I reckon, and I'm sure there'll be more detail to this but there are some pretty dramatic suggestions here that I would have been quite complex ti implement quickly. I know nothing, but Luke Lornegan’s comment here seems quite specific in naming hardware that might be part of this.

http://www.dbms2.com/2008/09/06/sans-vs-das-in-mpp-data-warehousing/

Best wait until tomorrow, I reckon, and I’m sure there’ll be more detail to this but there are some pretty dramatic suggestions here that I would have been quite complex ti implement quickly.

]]> By: Martin Berger http://www.pythian.com/blogs/1246/oracles-secret-new-feature-educated-guesses#comment-281127 Martin Berger Tue, 23 Sep 2008 18:27:36 +0000 http://www.pythian.com/blogs/1246/oracles-secret-new-feature-educated-guesses#comment-281127 I recently sat together with some collegues and developed a solution similar to Pauls. We did not test it in real live, but it should be possible with 11g ASM as well: 3 way mirrored, one group of ram-disks, this one as ASM_PREFERRED_READ_FAILURE_GROUPS. Only the procedures for shutdown (should these disks be dumped anywhere?) and startup (restore from dump or let ASM re-create the failure group?) Nevertheless, i prefer the first way. My personal guess is something like "ASM as full featured cluster-filesystem with integrated cache, which eliminates buffer cache". Only the result cache will remain within the instances. I recently sat together with some collegues and developed a solution similar to Pauls. We did not test it in real live, but it should be possible with 11g ASM as well: 3 way mirrored, one group of ram-disks, this one as ASM_PREFERRED_READ_FAILURE_GROUPS. Only the procedures for shutdown (should these disks be dumped anywhere?) and startup (restore from dump or let ASM re-create the failure group?)
Nevertheless, i prefer the first way.
My personal guess is something like “ASM as full featured cluster-filesystem with integrated cache, which eliminates buffer cache”. Only the result cache will remain within the instances.

]]> By: LewisC http://www.pythian.com/blogs/1246/oracles-secret-new-feature-educated-guesses#comment-281124 LewisC Tue, 23 Sep 2008 18:24:45 +0000 http://www.pythian.com/blogs/1246/oracles-secret-new-feature-educated-guesses#comment-281124 My bet is still on on columnar storage. If Oracle adds that, the will own the data warehousing market for a long time. Add in super compression and it's a home run. LewisC My bet is still on on columnar storage. If Oracle adds that, the will own the data warehousing market for a long time. Add in super compression and it’s a home run.

LewisC

]]> By: Alex Gorbachev http://www.pythian.com/blogs/1246/oracles-secret-new-feature-educated-guesses#comment-281111 Alex Gorbachev Tue, 23 Sep 2008 17:24:37 +0000 http://www.pythian.com/blogs/1246/oracles-secret-new-feature-educated-guesses#comment-281111 Anjo's no 1 was announced already. I think I've got the newsletter with the link on Sunday. Smart integrated storage gets my support as a winner (we actually circulated this in the emails recently). Plug'n'plan cluster - nothing new but if deployment is finally done quickly, reliably and with a click of the mouse then great. But I bet it will be via OEM or OUI so it won't work reliably. We can also expect something from virtualization area. Anjo’s no 1 was announced already. I think I’ve got the newsletter with the link on Sunday.

Smart integrated storage gets my support as a winner (we actually circulated this in the emails recently).

Plug’n'plan cluster - nothing new but if deployment is finally done quickly, reliably and with a click of the mouse then great. But I bet it will be via OEM or OUI so it won’t work reliably.

We can also expect something from virtualization area.

]]> By: Anjo Kolk http://www.pythian.com/blogs/1246/oracles-secret-new-feature-educated-guesses#comment-281074 Anjo Kolk Tue, 23 Sep 2008 14:47:17 +0000 http://www.pythian.com/blogs/1246/oracles-secret-new-feature-educated-guesses#comment-281074 I believe it to be: 1) Running Oracle certified on EC2 and S3 (for backups with RMAN), have been thinking about that for the last year myself. Amazon just send me a news letter talking about this with a link to Oracle and that link doesn't work and searching the oracle site doesn't give anything either 2) Better compression and filtering on the disk level. So why not push the filter of a query to the disk, you only get the data that you need in the Oracle buffer cache. Making the cache more effective. Now that would be an project that Kevin would love working on. 3) Something with RAC, as the RAC has left the station a couple of years ago and it has run out of track and is going no where. Yep many people seem to be talking about it and even some people are using it. But there are better alternatives for most customers for RAC. But still, what is up with RAC lately? May be an de-support notice, as running without RAC will extremely improve performance of most applications :) I believe it to be:
1) Running Oracle certified on EC2 and S3 (for backups with RMAN), have been thinking about that for the last year myself. Amazon just send me a news letter talking about this with a link to Oracle and that link doesn’t work and searching the oracle site doesn’t give anything either
2) Better compression and filtering on the disk level. So why not push the filter of a query to the disk, you only get the data that you need in the Oracle buffer cache. Making the cache more effective. Now that would be an project that Kevin would love working on.
3) Something with RAC, as the RAC has left the station a couple of years ago and it has run out of track and is going no where. Yep many people seem to be talking about it and even some people are using it. But there are better alternatives for most customers for RAC. But still, what is up with RAC lately? May be an de-support notice, as running without RAC will extremely improve performance of most applications :)

]]> By: Ben Vallance http://www.pythian.com/blogs/1246/oracles-secret-new-feature-educated-guesses#comment-281010 Ben Vallance Tue, 23 Sep 2008 10:52:37 +0000 http://www.pythian.com/blogs/1246/oracles-secret-new-feature-educated-guesses#comment-281010 Some of the whispers I am hearing from the customers and prospect I have been to chatting to are around pushing the Oracle Compression algorithms through the roof. Compressing data > 40:1 makes IO wait time almost redundent and fits with the extreme performance messsaging. Just a hunch :o) Some of the whispers I am hearing from the customers and prospect I have been to chatting to are around pushing the Oracle Compression algorithms through the roof. Compressing data > 40:1 makes IO wait time almost redundent and fits with the extreme performance messsaging. Just a hunch :o)

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