I require durability for inserts to my column families so I'm using
batch mode to insert data.
However, I have some column families which I use for less important
data (indexes) which are much more write intensive.
If I could change the commit log setting only for them to periodic
instead of
unfortunately.
--Original Message--
From: Rob Coli
To: user@cassandra.apache.org
To: osish...@gmail.com
ReplyTo: user@cassandra.apache.org
Subject: Re: commitlog_sync_batch_window_in_ms change in 0.7
Sent: May 30, 2012 03:12
On Mon, May 28, 2012 at 6:53 AM, osishkin osishkin osish
I'm experimenting with Cassandra 0.7 for some time now.
I want to increase the value of commitlog_sync_batch_window_in_ms,
without losing previous data.
I can shut down my cluster, but I don't want to have the nodes ignore
it due to some schema misoconfiguration etc when I get it up again.
I
I'm trying to figure out the correct way to restart a cluster when I
want to make schema changes.
I'm using Cassandra 0.7.0
So far I simply shutdown all the nodes in my simple test cluster (1-2
nodes at most), deleted all the data in /var/lib/cassandra, restarted
and applied the new schema.
Hi, sorry for re-posting, but it would be very helpful to get some
input on my previous post, so I'd know which direction to take.
So if anyone of the more experienced users here can help, it would be
greatly appreciated.
Thank you
Osi
-- Forwarded message --
From: osishkin
Sorry for the newbie question but I failed to find a clear answer.
Can CQL be used to query a schema-less column family? can they be indexed?
That is, query for column names that do not necessarily exist in all
rows, and were not defined in advance when the column family was
created.
Thank you
I'm thinking about Secondary indexes as an alternative for using
column families to index my data.
I'd appreciate some answers to basic questions about this new feature.
1. Can you insert a row to a column family with a predefined column
metadata (and secondary index for these columns) that does
Hi all,
I need to store column values that are of various data types in a
single column family, i.e I have column values that are integers,
others that are strings, and maybe more later. All column names are
strings (no comparator problem for me).
The thing is I need to store unstructured data -
Is there a limitation on the data type of a column value (not column
name) in cassandra?
I'm saving data using a pycassa client, for a UTF8 column family, and
I get an error when I try saving integer data values.
Only when convert the values to string can I save the data.
Looking at the pycassa
I want to have several deamons running on a machine, each belinging to
a multi-node cluster.
Is that a problem in concern to port 8080, for jmx monitoring?
Is it somewhere hardcoded, so that changing it is the configuration
files is not enough?
Thank you
osi
, Sasha Dolgy sdo...@gmail.com wrote:
it's defined in $CASSANDRA_HOME/conf/cassandra-env.sh
JMX_PORT=
Have it different for each instance ...
On Tue, Jun 21, 2011 at 1:24 PM, osishkin osishkin osish...@gmail.com wrote:
I want to have several deamons running on a machine, each belinging
I've managed to find the problem. Not a IBM vs. Sun JRE issue.
It had to do with my RHEL distribution JRE defintions which caused
conflicts (from /etc/java/java.conf...). When invoking with absolute
path to java executable, instead of simply java the errors were gone.
So no more errors in
Are you saying this based on your personal experience?
Or is this just an educated guess?
On Tue, Aug 3, 2010 at 11:19 PM, Brandon Williams dri...@gmail.com wrote:
On Fri, Jul 30, 2010 at 9:58 AM, osishkin osishkin osish...@gmail.com
wrote:
I'm talking about the James Golick plugin. I
I'm talking about the James Golick plugin. I followed the
instructions, and got nowhere.
http://github.com/jamesgolick/cassandra-munin-plugins
I saw in the mailing list that other people successfully got it to work
Thanks
I didn't find in the documentation a way to configure message logging
that I'm looking for, so I appologize if this is a trivial question.
Is there a simple guide to configuring logging options in Cassandra?
I saw references to output.log, transactions log. I deduced from some
other post here that
I'm testing a simple Cassandra cluster on two machines. For some reaon
after a while one of the nodes in the cluster crashes.
At first I thought the fault was on me, so I simply started it up again.
After the second time this happenned I noticed the following message errors -
INFO 17:28:05,624
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