Generic questions over Cassandra 1.1/1.2

2012-11-25 Thread cbert...@libero.it
Hi all, I'm in production with cassandra since version 0.6 then upgraded to 0.7 and finally to 1.0. If I look at my schema now it's "senseless" to be on 1.0 but many things changed from 0.6 ... secondary indexes, counters, expiring columns and more. Now I am going to write a new application using

Re: Concurrency and secondary indexes

2012-11-25 Thread aaron morton
> Nodetool reports: 1.1.6-dse-p1 If you are using DSE the best place to get help is the support forums http://www.datastax.com/support-forums/ Cheers - Aaron Morton Freelance Cassandra Developer New Zealand @aaronmorton http://www.thelastpickle.com On 24/11/2012, at 6:34 AM, S

Re: huge commitlog

2012-11-25 Thread aaron morton
> I checked the log, and found some ERROR about network problems, > and some ERROR about "Keys must not be empty". Do you have the full error stack ? Cheers - Aaron Morton Freelance Cassandra Developer New Zealand @aaronmorton http://www.thelastpickle.com On 25/11/2012, at 4:14

Re: Generic questions over Cassandra 1.1/1.2

2012-11-25 Thread aaron morton
> Now I am going to write a new application using cassandra so I started > reading > documentation in order to "model" the new db using all the new features and > not > reinventing the wheel. Some resources for CQL 3, it may match your needs. If not you can still use Thrift through your favour

R: Re: Generic questions over Cassandra 1.1/1.2

2012-11-25 Thread cbert...@libero.it
Aaron first of all thanks for your precious help everytime Some resources for CQL 3, it may match your needs. If not you can still use Thrift through your favourite client...There have been a few articles on the DS blog http://www.datastax.com/dev/blogA talk at the conference by Eric htt

Re: continue seeing "Finished hinted handoff of 0 rows to endpoint"

2012-11-25 Thread Mina Naguib
On 2012-11-24, at 10:37 AM, Chuan-Heng Hsiao wrote: > However, I continue seeing the following in /var/log/cassandra/system.log > > INFO [HintedHandoff:1] 2012-11-24 22:58:28,088 > HintedHandOffManager.java (line 296) Started hinted handoff for token: > 27949589543905115548813332729343195104 w

Re: huge commitlog

2012-11-25 Thread Chuan-Heng Hsiao
Hi Aaron, Thank you very much for replying. >From the log, it seems the the ERROR happens when trying to flush memtable with secondary index. (When inserting the data, I set the default value as '' for all pre-defined columns. it's for programming convenience.) The following is the log: INFO

Re: continue seeing "Finished hinted handoff of 0 rows to endpoint"

2012-11-25 Thread Chuan-Heng Hsiao
Hi Mina, Thank you very much for replying. My machines are running Oracle java 1.7.09. so that might be the issue. (My machines are running Oracle java 1.7.09 from the beginning.) I cleaned up the specific empty CF again, and the "hinted handoff of 0 rows" showed up again, and the "scrub system H

Re: Generic questions over Cassandra 1.1/1.2

2012-11-25 Thread aaron morton
> Aaron first of all thanks for your precious help everytime …. Thanks for using Cassandra since version 0.6 :) > What it means that it will support "concurrent schema modifications?" Previously we said you can change the schema online, but only do it at one node at a time. In v1.2 you can have m

Re: huge commitlog

2012-11-25 Thread aaron morton
Can you please create a ticket for this on https://issues.apache.org/jira/browse/CASSANDRA Thanks - Aaron Morton Freelance Cassandra Developer New Zealand @aaronmorton http://www.thelastpickle.com On 26/11/2012, at 1:58 PM, Chuan-Heng Hsiao wrote: > Hi Aaron, > > Thank you