Re: Cassandra take a snapshot after a column family update

2011-03-31 Thread Roberto Bentivoglio
t; > On 31 Mar 2011, at 01:13, Roberto Bentivoglio wrote: > > Hi Aaron, > I already deleted the snapshot folder unfortunately. > We upgraded to 0.7.4. > > Thanks, > Roberto > > On 30 March 2011 12:57, aaron morton wrote: > >> AFAIK snapshots are taken for drop

Re: Cassandra take a snapshot after a column family update

2011-03-30 Thread Roberto Bentivoglio
de for 0.7 to > snapshot during CF update. > > What was the name of the snapshot folder ? > > btw it's a really good idea to upgrade to 0.7.4 if possible > > Aaron > > On 30 Mar 2011, at 20:55, Roberto Bentivoglio wrote: > > > Hi all, > > I've exec

Cassandra take a snapshot after a column family update

2011-03-30 Thread Roberto Bentivoglio
Hi all, I've executed from cassandra-cli on a production server (0.7.0) the following instruction: update column family CFName with gc_grace=0; I'm really surprise that Cassandra take a snapshots of the data for every update that I executed. Is this a normal behaviour? Thank

Re: Problem about freeing space after a major compaction

2011-03-29 Thread Roberto Bentivoglio
form a compaction. > > Aaron > > On 29 Mar 2011, at 02:15, Roberto Bentivoglio wrote: > > Thanks you again, we're going to update our enviroment. > > Regards, > Roberto > > On 28 March 2011 17:08, Ching-Cheng Chen wrote: > >> >> AFAIK, setting gc_grace

Re: Problem about freeing space after a major compaction

2011-03-28 Thread Roberto Bentivoglio
https://issues.apache.org/jira/browse/CASSANDRA-2059> > > Chen > > Senior Developer, EvidentSoftware(Leaders in Monitoring of NoSQL & JAVA ) > > http://www.evidentsoftware.com > > On Mon, Mar 28, 2011 at 11:04 AM, Roberto Bentivoglio < > roberto.bentivog...@gmail.com

Re: Problem about freeing space after a major compaction

2011-03-28 Thread Roberto Bentivoglio
> > Chen > > Senior Developer, EvidentSoftware(Leaders in Monitoring of NoSQL & JAVA ) > > http://www.evidentsoftware.com > > On Mon, Mar 28, 2011 at 10:40 AM, Roberto Bentivoglio < > roberto.bentivog...@gmail.com> wrote: > >> Hi all, >> we'r

Problem about freeing space after a major compaction

2011-03-28 Thread Roberto Bentivoglio
C from the JConsole as described in http://wiki.apache.org/cassandra/MemtableSSTable without any success. The space is freed only after a database restart. How can we free this disk space without restart the db? Thanks you very much, Roberto Bentivoglio

Slow writes after migration to 0.7

2011-01-27 Thread Roberto Bentivoglio
Hi all, we're moving our enviroment to the new version of Cassandra (from the 0.6.8). We're using the default configuration and we've enabled only the key-cache. We've a strange behaviour about the writes performance: the codes are still the same but the writes are from 4 to 6 times more slower. On