Practical limit to number of keyspaces?

2014-07-10 Thread Sourabh Agrawal
Hi, We are using 2.0.x in production env. Each node has 8G heap. Is there a practical limit to how many keyspaces I can have? Please note that many keyspaces remain mostly dormant while others have very high level of activity. -- Sourabh Agrawal Bangalore +91 9945657973

Re: keyspace with hundreds of columnfamilies

2014-07-10 Thread Sourabh Agrawal
Yes, what about CQL style columns? Please clarify On Sat, Jul 5, 2014 at 12:32 PM, tommaso barbugli wrote: > Yes my question what about CQL-style columns. > > > 2014-07-04 12:40 GMT+02:00 Jens Rantil : > > Just so you guys aren't misunderstanding each other; Tommaso, you were not >> refering to

Re: Size-tiered Compaction runs out of memory

2014-07-10 Thread Redmumba
Thank you both! Robert, I read through the bug--it sounds like this behavior has been fixed (or the impact reduced) in 2.1, but given that our data is pretty uniform (with no overlap between rows/values), it doesn't look like we'll suffer from that. At least, that's what I understood from the bug

[RELEASE CANDIDATE] Apache Cassandra 2.1.0-rc3 released

2014-07-10 Thread Sylvain Lebresne
The Cassandra team is pleased to announce the release of the second release candidate for the future Apache Cassandra 2.1.0. Let first stress that this is not yet the final release of 2.1.0 and as such is *not* ready for production use. We however encourage as much testing as possible of this rele

Re: Size-tiered Compaction runs out of memory

2014-07-10 Thread Pavel Kogan
Moving to Leveled compaction resolved same problem for us. As Robert mentioned, use it carefully. Size tiered compaction requires having 50% free disk space (also according to datastax documentation). Pavel On Wed, Jul 9, 2014 at 8:39 PM, Robert Coli wrote: > On Wed, Jul 9, 2014 at 4:27 PM, An

Re: C* 2.1-rc2 gets unstable after a 'DROP KEYSPACE' command ?

2014-07-10 Thread Pavel Kogan
It seems that memtable tries to flush itself to SSTable of not existing keyspace. I don't know why it is happens, but probably running nodetool flush before drop should prevent this issue. Pavel On Thu, Jul 10, 2014 at 4:09 AM, Fabrice Larcher wrote: > ​Hello, > > I am using the 'development'

C* 2.1-rc2 gets unstable after a 'DROP KEYSPACE' command ?

2014-07-10 Thread Fabrice Larcher
​Hello, I am using the 'development' version 2.1-rc2. With one node (=localhost), I get timeouts trying to connect to C* after running a 'DROP KEYSPACE' command. I have following error messages in system.log : INFO [SharedPool-Worker-3] 2014-07-09 16:29:36,578 MigrationManager.java:319 - Drop K

Re: Changes in the Metrics MBean

2014-07-10 Thread DuyHai Doan
Look at change log on the Github repo for the MBean class Le 10 juil. 2014 09:14, "bhavishya.p" a écrit : > > Hi.. > There seems to be a new feature added in the Metrics MBean which provides > the overall metrics for a particular cluster. In which version was this > feature added? > Also, how can

Changes in the Metrics MBean

2014-07-10 Thread bhavishya.p
Hi.. There seems to be a new feature added in the Metrics MBean which provides the overall metrics for a particular cluster. In which version was this feature added? Also, how can we determine in which version the changes are made in general? Thanks in advance. Regards, Bhavishya Palukur