Re: Cluster fragility

2010-11-12 Thread Dave Gardner
We never have to reboot our production cluster. However we're not running a beta version but a release version (0.6.6). If your aim is to avoid fragility, it would seem sensible to run a release version as a good starting point. dave On Friday, November 12, 2010, Reverend Chip wrote: > I've been

RE: Cassandra 0.7 beta3 BinaryMemtable and Supercolumns

2010-11-12 Thread Aditya Muralidharan
Thanks for the response. We're trying to get a general idea of the insert and retrieval performance, and we figured BinaryMemtable would be a great enabler for our bulk import scenarios. Normal thrift inserts are certainly fast, but it would be nice to get an idea of how BMT could improve our th

Re: Cassandra 0.7 beta3 BinaryMemtable and Supercolumns

2010-11-12 Thread Ryan King
On Fri, Nov 12, 2010 at 7:33 AM, Aditya Muralidharan wrote: > Thanks for the response. We're trying to get a general idea of the insert and > retrieval performance, and we figured BinaryMemtable would be a great enabler > for our bulk import scenarios. Normal thrift inserts are certainly fast, b

Gossip yoyo under write load

2010-11-12 Thread Chip Salzenberg
After I rebooted my 0.7.0beta3+ cluster to increase threads (read=100 write=200 ... they're beefy machines), and putting them under load again, I find gossip reporting yoyo up-down-up-down status for the other nodes. Anyone know what this is a symptom of, and/or how to avoid it? I haven't seen an

Re: Backup Strategy

2010-11-12 Thread Rob Coli
On 11/9/10 5:15 AM, Wayne wrote: We are trying to use snapshots etc. to back up the data but it is slow (hours) and slows down the entire node. The snapshot process (as I understand it, and with the caveat that this is the code path without JNA available) first flushes all memtables (this can

[RELEASE] 0.6.8

2010-11-12 Thread Eric Evans
Greetings, I have some bad news, and some good news. The Bad News is that a regression[1] made its way into our latest release, 0.6.7. Sorry about that, we try really hard to keep that from happening, but every once in a while one sneaks through. The Good News is that it's been fixed and we've

using SimpleAuthenticator is not working

2010-11-12 Thread Alaa Zubaidi
using SimpleAuthenticator is not working with me in beta 3 I am doing the following: ·In Cassandra.yaml Set authenticator: org.apache.cassandra.auth.SimpleAuthenticator ·Add username and password to passwd.proprties ·Add username to keyspace and column family permission in access.proprties ·Add

Re: [RELEASE] 0.6.8

2010-11-12 Thread Schubert Zhang
Thanks. The tag 0.6.8 is not available in SVN On Sat, Nov 13, 2010 at 8:02 AM, Eric Evans wrote: > > Greetings, > > I have some bad news, and some good news. > > The Bad News is that a regression[1] made its way into our latest > release, 0.6.7. Sorry about that, we try really hard to keep tha

Re: Cluster fragility

2010-11-12 Thread Jonathan Ellis
These are not expected. In order of increasing utility of fixing it we could use - INFO level logs from when something went wrong; when streaming, both source and target - DEBUG level logs - instructions for how to reproduce On Thu, Nov 11, 2010 at 7:46 PM, Reverend Chip wrote: > I've been r

Re: Gossip yoyo under write load

2010-11-12 Thread Jonathan Ellis
On Fri, Nov 12, 2010 at 3:19 PM, Chip Salzenberg wrote: > After I rebooted my 0.7.0beta3+ cluster to increase threads (read=100 > write=200 ... they're beefy machines), and putting them under load again, I > find gossip reporting yoyo up-down-up-down status for the other nodes. >  Anyone know what

Re: [RELEASE] 0.6.8

2010-11-12 Thread Eric Evans
On Sat, 2010-11-13 at 10:21 +0800, Schubert Zhang wrote: > Thanks. > > The tag 0.6.8 is not available in SVN It's there now. Thanks for letting me know. -- Eric Evans eev...@rackspace.com