You download the patch and apply it.
On Thu, Jun 17, 2010 at 4:10 PM, Anthony Ikeda <anthony.ik...@cardlink.com.au> wrote: > Thanks Sylvia, I would like to actually do that actually. Any idea how I can > get started? > > -----Original Message----- > From: Sylvain Lebresne [mailto:sylv...@yakaz.com] > Sent: Thursday, 17 June 2010 5:46 PM > To: user@cassandra.apache.org > Subject: Re: Some questions about using Cassandra > > On Thu, Jun 17, 2010 at 1:20 AM, Anthony Ikeda > <anthony.ik...@cardlink.com.au> wrote: >> Thanks Gary, I'm looking at that plug-in feature at the moment but there >> seems to be very little documentation on how to use it. > > There is no documentation whatsoever. This is just a feature proposition right > now (it's not included in Cassandra, at least not yet), so it's not a > all encouraged to use it > unless of course it's to test it and give feedback to the patch author > (which I can only > encourage you to do :)). But right now you'll have to do it on the > application side. > >> From the Application point of view though we are still trying to model the >> process flows based on our technological approach. Mainly due to the fact >> that we need real time processing at the application layer over 2 or more >> sites at least 1000km apart and we are finding RDBMS to be too slow for the >> volumes we are trying to achieve. >> >> >> >> We want to move any relational database access off the application and have, >> for example, Cassandra transferring whatever information to an underlying >> database/LDAP/FileSystem once we reach a final commit point - ultimately >> Cassandra being a distributed database it's going to be used more for a >> cache or our database. As I said this process depends on which sync protocol >> we decide on (messaging, clustering, cloud, etc). >> >> >> >> Anthony >> >> >> >> >> >> From: Gary Dusbabek [mailto:gdusba...@gmail.com] >> Sent: Thursday, 17 June 2010 2:20 AM >> >> To: user@cassandra.apache.org >> Subject: Re: Some questions about using Cassandra >> >> >> >> On Tue, Jun 15, 2010 at 19:49, Anthony Ikeda <anthony.ik...@cardlink.com.au> >> wrote: >> >> Is there any concept of Listeners such that when data is added to Cassandra >> we can fire off another process to do something with that data? E.g. create >> a copy in a secondary database for Business Intelligence reports? Send the >> data to an LDAP server? >> >> Typically, this is the kind of thing that gets handled at the application >> level (your application). There is a feature request for it though. >> https://issues.apache.org/jira/browse/CASSANDRA-1016 >> >> >> >> Gary. >> >> _____________________________________________________________________ >> This e-mail has been scanned for viruses by MCI's Internet Managed >> Scanning Services - powered by MessageLabs. For further information >> visit http://www.mci.com >> >> ********************************************************************** >> This e-mail message and any attachments are intended only for the use of the >> addressee(s) named above and may contain information that is privileged and >> confidential. If you are not the intended recipient, any display, >> dissemination, distribution, or copying is strictly prohibited. If you >> believe you have received this e-mail message in error, please immediately >> notify the sender by replying to this e-mail message or by telephone to (02) >> 9646 9222. Please delete the email and any attachments and do not retain the >> email or any attachments in any form. >> ********************************************************************** >> > > _____________________________________________________________________ > This e-mail has been scanned for viruses by MCI's Internet Managed > Scanning Services - powered by MessageLabs. For further information > visit http://www.mci.com > > ********************************************************************** > This e-mail message and any attachments are intended only for the use of the > addressee(s) named above and may contain information that is privileged and > confidential. If you are not the intended recipient, any display, > dissemination, distribution, or copying is strictly prohibited. If you > believe you have received this e-mail message in error, please immediately > notify the sender by replying to this e-mail message or by telephone to (02) > 9646 9222. Please delete the email and any attachments and do not retain the > email or any attachments in any form. > ********************************************************************** >
