Re: Cassandra Schema Change Performance Improvement

2014-07-24 Thread graham sanderson
Just as a general observation, there is a third possible solution depending on the number of columns involved per K1 (which looks reasonable based on your numbers) but also on how much contention there is for updates to particular (K1, K2) values (which are always unique partitions in your optio

Cassandra Schema Change Performance Improvement

2014-07-24 Thread Cheng Ren
Hi, Cassandra schema change is the performance painpoint for us, since it's the global information across the entire cluster. Our production cassandra cluster consists of a lot of sets of column families, which totals 1000 column families, and 38301 columns, which sum up to 3.2MB. We have a data m

Re: [jira] [Created] (CASSANDRA-7611) incomplete CREATE/DROP USER help and tab completion

2014-07-24 Thread Robert Stupp
I've informed the docs people yesturday -- Sent from my iPhone > Am 24.07.2014 um 18:28 schrieb "Kristine Hahn (JIRA)" : > > Kristine Hahn created CASSANDRA-7611: > > >Summary: incomplete CREATE/DROP USER help and tab completion >