Re: Old data not indexed
As mentioned in the article you linked, index creation happens asynchronously: when you perform the schema update call to add an index, the index starts building in the background, and will not be completely valid until it finishes building. I believe there is a JMX call to check the status of this process. On Thu, Jan 13, 2011 at 5:39 PM, Tan Yeh Zheng wrote: > Hi all, > > More specifically, I added two rows of data. Row A > (users['A']['state']='UT') is added before I add indexing to the column > and the Row B (users['B']['state']='UT') after indexing. When I call > get_indexed_slices (state='UT') to query the two rows, only the Row B is > returned. It's as if Cassandra cannot automatically index rows that are > inserted before indexing. > > Thank you in advance for your help. > > On Thu, 2011-01-13 at 15:33 +0800, Tan Yeh Zheng wrote: > > I tried to run the example on > > http://www.riptano.com/blog/whats-new-cassandra-07-secondary-indexes > > programatically. > > > > After I index the column "state", I tried to get_indexed_slices (where > > state = 'UT') but it returned an empty list. But if I index first, then > > query, it'll return the correct result. Any advise is appreciated. > > > > Thanks. > > > > -- > Best Regards, > > Tan Yeh Zheng > Software Programmer > > ChartNexus® :: Chart Your Success > > ChartNexus Pte. Ltd. > > 15 Enggor Street #10-01 > Realty Center > Singapore 079716 > Tel: (65) 6491 1456 > Website: www.chartnexus.com > > Disclaimer: > This email is confidential and intended only for the use of the > individual or individuals named above and may contain information that > is privileged. If you are not the intended recipient, you are notified > that any dissemination, distribution or copying of this email is > strictly prohibited. > >
Re: Problem starting Cassandra on Ubuntu
> ERROR [main] 2011-01-14 15:37:49,965 DatabaseDescriptor.java (line 388) Fatal > error: null; mapping values are not allowed here This indicates there is a problem with the configuration file; that error is coming from the YAML parser. Double-check what changes you have made relative to the version that was installed by the package; there is probably a mistake in there somewhere. (Yes, the error message could of course be more informative...) -- / Peter Schuller
Re: Do you have a site in production environment with Cassandra? What client do you use?
Same here, Hector with Java. Shimi On Fri, Jan 14, 2011 at 9:13 PM, Dan Kuebrich wrote: > We've done hundreds of gigs in and out of cassandra 0.6.8 with pycassa 0.3. > Working on upgrading to 0.7 and pycassa 1.03. > > I don't know if we're using it wrong, but the "connection object is tied to > a particular keyspace" constraint isn't that awesome--we have a number of > keyspaces used simultaneously. Haven't looked into it yet. > > > On Fri, Jan 14, 2011 at 1:52 PM, Mike Wynholds wrote: > >> We have one in production with Ruby / fauna Cassandra gem and Cassandra >> 0.6.x. The project is live but is stuck in a sort of private beta, so it >> hasn't really been run through any load scenarios. >> >> ..mike.. >> >> -- >> Michael Wynholds | Carbon Five | 310.821.7125 x13 | m...@carbonfive.com >> >> >> >> On Fri, Jan 14, 2011 at 9:24 AM, Ertio Lew wrote: >> >>> Hey, >>> >>> If you have a site in production environment or considering so, what >>> is the client that you use to interact with Cassandra. I know that >>> there are several clients available out there according to the >>> language you use but I would love to know what clients are being used >>> widely in production environments and are best to work with(support >>> most required features for performance). >>> >>> Also preferably tell about the technology stack for your applications. >>> >>> Any suggestions, comments appreciated ? >>> >>> Thanks >>> Ertio >>> >> >> >
Re: Do you have a site in production environment with Cassandra? What client do you use?
python + pycassa scala + Hector On Fri, Jan 14, 2011 at 6:24 PM, Ertio Lew wrote: > Hey, > > If you have a site in production environment or considering so, what > is the client that you use to interact with Cassandra. I know that > there are several clients available out there according to the > language you use but I would love to know what clients are being used > widely in production environments and are best to work with(support > most required features for performance). > > Also preferably tell about the technology stack for your applications. > > Any suggestions, comments appreciated ? > > Thanks > Ertio >
Re: Do you have a site in production environment with Cassandra? What client do you use?
Perl using the thrift interface directly. On Sat, Jan 15, 2011 at 6:10 AM, Daniel Lundin wrote: > python + pycassa > scala + Hector > > On Fri, Jan 14, 2011 at 6:24 PM, Ertio Lew wrote: > > Hey, > > > > If you have a site in production environment or considering so, what > > is the client that you use to interact with Cassandra. I know that > > there are several clients available out there according to the > > language you use but I would love to know what clients are being used > > widely in production environments and are best to work with(support > > most required features for performance). > > > > Also preferably tell about the technology stack for your applications. > > > > Any suggestions, comments appreciated ? > > > > Thanks > > Ertio > > >
