Re: ParNew (promotion failed)

2011-03-27 Thread Jonathan Ellis
On Sat, Mar 26, 2011 at 5:21 PM, Peter Schuller wrote: >> So to resolve this i must tune young generation (HEAP_NEWSIZE) -Xmn, and >> tune in_memory_compaction_limit_in_mb config parameter? > > More likely adjust the initial occupancy trigger and/or the heap size. > Probably just the latter. This

Re: How to repair HintsColumnFamily?

2011-03-27 Thread Jonathan Ellis
Why would you try to repair hints? If you run repair on the non-system data then you don't need the hint data and can remove it. On Sun, Mar 27, 2011 at 12:17 AM, Shotaro Kamio wrote: > Hi, > > Our cluster uses cassandra 0.7.4 (upgraded from 0.7.3) with > replication = 3. I found that error occu

Re: Starter GUI Tool for Windows

2011-03-27 Thread Dario Bravo
I'm adding new features today. You can now download it and will be able to view keyspaces info and column families. I will start to develop a feature to add column families to keyspaces... it will take some time, but you can play around with it (for almost a minute, before you get bored). 2011/

Re: Starter GUI Tool for Windows

2011-03-27 Thread Edward Capriolo
On Sun, Mar 27, 2011 at 10:56 AM, Dario Bravo wrote: > I'm adding new features today. You can now download it and will be able to > view keyspaces info and column families. > I will start to develop a feature to add column families to keyspaces... it > will take some time, but you can play around

fabric script for cassandra

2011-03-27 Thread Anurag Gujral
Hi All, Does anyone knows where to get /have a fabric script for deploying cassandra on multiple machines. Thanks Anurag

Re: data aggregation in Cassandra

2011-03-27 Thread aaron morton
You can do range based questions inside of one row. For example one row has all of the observations for one day, each observation is represented as a column where (at least the start of the name) is the time of the observation. You can have to 2 billion columns in one row, and the column names a

Re: Error messages after rolling updating cassandra from 0.7.0 to 0.7.2

2011-03-27 Thread Kazuo YAGI
I really hank you for your information. I'll try to upgrade 0.7.4 and run scrub. (11/03/25 22:39), Jonathan Ellis wrote: from NEWS.txt: Upgrading - - 0.7.1 and 0.7.2 shipped with a bug that caused incorrect row-level bloom filters to be generated when compacting sstables gen

newbie question: how do I know the total number of rows of a cf?

2011-03-27 Thread Sheng Chen
Hi all, I want to know how many records I am holding in Cassandra, just like count(*) in sql. What can I do ? Thank you. Sheng