Re: reads are slow

On Tue, Feb 23, 2010 at 10:06 AM, Jonathan Ellis jbel...@gmail.com wrote: the standard workaround is to change your data model to use non-super columns instead. supercolumns are really only for relatively small numbers of subcolumns until 598 is addressed. is there any limit on the number

reads are slow

to load 100 columns of a super column it takes over a second. how to improve this performance. i am using cassandra 0.5 version. output of nodeprobe info 29814395632524962303611017038378268216 Load : 9.18 GB Generation No: 1266945238 Uptime (seconds) : 638131 Heap Memory (MB) :

Re: reads are slow

at 11:33 AM, kevin kevincastigli...@gmail.com wrote: to load 100 columns of a super column it takes over a second. how to improve this performance. i am using cassandra 0.5 version. output of nodeprobe info 29814395632524962303611017038378268216 Load : 9.18 GB

Re: reads are slow

On Tue, Feb 23, 2010 at 9:51 AM, Brandon Williams dri...@gmail.com wrote: On Tue, Feb 23, 2010 at 11:33 AM, kevin kevincastigli...@gmail.comwrote: I have given 10GB RAM in cassandra.in.sh. -Xmx10G \ i have increased KeysCachedFraction to 0.04. i have two different drives

Re: reads are slow

On Tue, Feb 23, 2010 at 10:06 AM, Jonathan Ellis jbel...@gmail.com wrote: the standard workaround is to change your data model to use non-super columns instead. is there any limit on the number of standard column families that i can set up on cassandra?

Re: reads are slow

On Tue, Feb 23, 2010 at 11:49 AM, Jonathan Ellis jbel...@gmail.com wrote: On Tue, Feb 23, 2010 at 12:12 PM, kevin kevincastigli...@gmail.com wrote: On Tue, Feb 23, 2010 at 10:07 AM, Jonathan Ellis jbel...@gmail.com wrote: you enable row caching by upgrading to 0.6. :) where can i get

cassandra browser

hi guys is there an admin tool (like pgadmin III) to browse the data stored in cassandra? thanks

Re: [VOTE] Graduation

+23 On Mon, Jan 25, 2010 at 2:50 PM, Chris Goffinet goffi...@digg.com wrote: +1 --- Chris Goffinet goffi...@digg.com On Jan 25, 2010, at 1:11 PM, Eric Evans wrote: There was some additional discussion[1] concerning Cassandra's graduation on the incubator list, and as a result

Re: disk space and load after removing data

i did nodeprobe -host localhost flush Keyspace1 nodeprobe -host localhost compact nodeprobe -host localhost cleanup and there is no change in the disk usage or Load info On Sat, Jan 23, 2010 at 11:31 PM, kevin kevincastigli...@gmail.com wrote: after deleting a lot of column families, column

Re: disk space and load after removing data

any help here guys? thanks a lot! On Sun, Jan 24, 2010 at 10:51 AM, kevin kevincastigli...@gmail.com wrote: i did nodeprobe -host localhost flush Keyspace1 nodeprobe -host localhost compact nodeprobe -host localhost cleanup and there is no change in the disk usage or Load info On Sat

Re: multiget_slice failed: unknown result

, (self.__class__, self.thrift_spec)) TypeError: got wrong ttype while reading field while reading upstream, On Mon, Jan 18, 2010 at 12:02 PM, kevin kevincastigli...@gmail.com wrote: hi guys i keep getting this error pretty sporadically. how to fix this? i am using cassandra 0.5rc3 thanks

refill claimed to have refilled the buffer, but didn't

hi i get this this error sporadically. how to figure out what is going on? thanks column_families = client.get_slice(keyspace, key, column_parent, predicate, ConsistencyLevel.ONE) File /home/work/common/lazyboy/connection.py, line 109, in func return getattr(client,

Re: Thrift 0.2.0 release

is this patch available? On Wed, Dec 16, 2009 at 1:55 PM, Jake Luciani jak...@gmail.com wrote: Would you accept a patch that fixes the Cassandra impl? Least we can do. On Dec 16, 2009, at 4:37 PM, Jonathan Ellis jbel...@gmail.com wrote: 0.2 shipped with a regression that breaks

Re: Jsondra - Start of an http/json interface for Cassandra using tornado and lazyboy

thanks for jsondra, it looks super exciting. is it possible to read an entire super_column_family with jsondra? thanks! On Wed, Dec 9, 2009 at 7:40 PM, Joseph Bowman bowman.jos...@gmail.comwrote: There was some concern about the approach I had taken with Jsondra, basically, that it wasn't

Re: Jsondra - Start of an http/json interface for Cassandra using tornado and lazyboy

and views will come later. On Dec 11, 2009 5:06 PM, kevin kevincastigli...@gmail.com wrote: thanks for jsondra, it looks super exciting. is it possible to read an entire super_column_family with jsondra? thanks! On Wed, Dec 9, 2009 at 7:40 PM, Joseph Bowman bowman.jos...@gmail.com wrote

Re: urgent: missing data!

thanks jbellis for the fix https://issues.apache.org/jira/browse/CASSANDRA-583 On Tue, Nov 24, 2009 at 6:24 PM, kevin kevincastigli...@gmail.com wrote: On Tue, Nov 24, 2009 at 6:05 PM, kevin kevincastigli...@gmail.com wrote: hi guys i have been using cassandra this version Path: . URL

urgent: missing data!

hi guys i have been using cassandra this version Path: . URL: http://svn.apache.org/repos/asf/incubator/cassandra/trunk Repository Root: http://svn.apache.org/repos/asf Repository UUID: 13f79535-47bb-0310-9956-ffa450edef68 Revision: 831540 Node Kind: directory Schedule: normal Last Changed

Re: urgent: missing data!

On Tue, Nov 24, 2009 at 6:05 PM, kevin kevincastigli...@gmail.com wrote: hi guys i have been using cassandra this version Path: . URL: http://svn.apache.org/repos/asf/incubator/cassandra/trunk Repository Root: http://svn.apache.org/repos/asf Repository UUID: 13f79535-47bb-0310-9956

Re: Cassandra Database Format Compatibility

On Mon, Nov 23, 2009 at 3:27 PM, Brandon Williams dri...@gmail.com wrote: On Mon, Nov 23, 2009 at 4:47 PM, Jon Graham sjclou...@gmail.com wrote: Is there an estimated release date for the 0.5 release? Beta should happen fairly soon -- it's up for a vote in the IPMC right now. what does

error when doing nodeprobe flush

i get this error on cassandra when i do nodeprobe flush. nodeprobe -host x.x.x.x flush 11:36:53,008 ERROR DebuggableThreadPoolExecutor:120 - Error in executor futuretask java.util.concurrent.ExecutionException: java.lang.AssertionError at

Re: error when doing nodeprobe flush

On Wed, Nov 18, 2009 at 11:49 AM, Jonathan Ellis jbel...@gmail.com wrote: This happens when you flush and there was no data in the binarymemtable. It's harmless (everything that does have data, still gets flushed). thanks for the info. Since you're running from svn you can update to the

Re: [VOTE] Website

looks gr8! +1 On Wed, Nov 11, 2009 at 2:35 PM, Ryan King r...@twitter.com wrote: Looks great. +1 -ryan On Wed, Nov 11, 2009 at 2:22 PM, Johan Oskarsson jo...@oskarsson.nu wrote: +1. A great step forward from the current version and a good base to improve upon. /Johan Eric

Re: Incr/Decr Counters in Cassandra

counters in cassandra will be awesome! On Wed, Nov 4, 2009 at 1:32 PM, Chris Goffinet goffi...@digg.com wrote: Hey, At Digg we've been thinking about counters in Cassandra. In a lot of our use cases we need this type of support from a distributed storage system. Anyone else out there who

lazyboy: is it possible to get entire supercolumn family

is it possible to get all the super columns of a supercolumn family with lazyboy? from lazyboy import * from lazyboy.key import Key connection.add_pool('Keyspace1', ['localhost:9160']) x=Record() x.load(Key('Keyspace1','Supern1', 'user_id')) Traceback (most recent call last): File stdin,

Re: are columns of a supercolumn name sorted?

that the order of columns in all the super columns are also reversed? if i set the super_column variable in the ColumnParent I can get the desired behavior of columns in reverse chronological order. On Sun, Oct 25, 2009 at 8:23 PM, kevin kevincastigli...@gmail.com wrote: thanks for the hint. i have

Re: are columns of a supercolumn name sorted?

? On Mon, Oct 26, 2009 at 9:51 AM, kevin kevincastigli...@gmail.com wrote: i got it, with what i specified the order of super columns is reversed client.get_slice(keyspace, key, ColumnParent(column_family=Super1), SlicePredicate(slice_range=SliceRange(start=, finish=,reversed=True

Re: are columns of a supercolumn name sorted?

On Mon, Oct 26, 2009 at 9:35 AM, Jonathan Ellis jbel...@gmail.com wrote: On Mon, Oct 26, 2009 at 10:25 AM, kevin kevincastigli...@gmail.com wrote: correct me if i am wrong, but i can get only the count [100 default or more] number of subcolumns right? if you are slicing supercolumns, you

Re: are columns of a supercolumn name sorted?

(['localhost:9160']) keyspace = Keyspace1 key='mykeyx' column_path = ColumnPath(column_family=Super1,column=x,super_column='sc_2') client.insert(keyspace, key, column_path, 'a', time.time(), ConsistencyLevel.ONE); Traceback (most recent call last): File stdin, line 1, in module File /Users/kevin

Re: are columns of a supercolumn name sorted?

/test_server.py has an example of passing time uuids in python. On Sun, Oct 25, 2009 at 8:52 PM, kevin kevincastigli...@gmail.com wrote: i tried the TimeUUIDType and I get the error. can you tell me which here should be a UUID? what is time based uuid? and which parameter here should be uuid

Re: cassandra slows down after inserts

Jonathan, good to know this is normal. but the reason i sent this is , once i stop and start cassandra it gets ready in few seconds and insertion and get_slices are super fast like few milliseconds. but after it starts to slow down even after 10 hours it is still slow. why is this the case? On

Re: Up and Running with Cassandra

any ideas when this will happen? thanks On Tue, Jul 7, 2009 at 10:52 AM, Evan Weaver ewea...@gmail.com wrote: It will; I don't think the change is committed yet. Evan On Tue, Jul 7, 2009 at 10:50 AM, Kevin Castiglionekevincastigli...@gmail.com wrote: thanks for this post! you have