Not yet.
On Wed, Nov 18, 2009 at 5:04 AM, Gatos ega...@gmail.com wrote:
Is it possible create column families not from the configuration file?
Cassandra takes advantage of the JMX standard to expose its internals.
You can access these via JConsole and lots of other tools.
We've also wrapped some of the most common in bin/nodeprobe.
For thrift queries there is bin/cassandra-cli and a web tool in
contrib/cassandra_browser.
On Wed, Nov
Thx,
in 0.4.2 I don't see the contrib/cassandra_browser
-Matthias
On Wed, Nov 18, 2009 at 6:40 PM, Jonathan Ellis jbel...@gmail.com wrote:
Cassandra takes advantage of the JMX standard to expose its internals.
You can access these via JConsole and lots of other tools.
We've also wrapped
As a side question, Is there a console-based (TTY) JConsole alternative?
Perhaps a web GUI proxy?
On Wed, Nov 18, 2009 at 12:40 PM, Jonathan Ellis jbel...@gmail.com wrote:
Cassandra takes advantage of the JMX standard to expose its internals.
You can access these via JConsole and lots of
That is new in trunk.
On Wed, Nov 18, 2009 at 11:45 AM, Matthias Wessendorf mat...@apache.org wrote:
Thx,
in 0.4.2 I don't see the contrib/cassandra_browser
-Matthias
On Wed, Nov 18, 2009 at 6:40 PM, Jonathan Ellis jbel...@gmail.com wrote:
Cassandra takes advantage of the JMX standard to
I saw it. thx
will try that and mod_py
thx,
m
On Wed, Nov 18, 2009 at 6:47 PM, Jonathan Ellis jbel...@gmail.com wrote:
That is new in trunk.
On Wed, Nov 18, 2009 at 11:45 AM, Matthias Wessendorf mat...@apache.org
wrote:
Thx,
in 0.4.2 I don't see the contrib/cassandra_browser
-Matthias
I suppose it will Cassandra tailored solution, have you ever stumbled upon
something decent but general purpose JMX text JMX client?
On Wed, Nov 18, 2009 at 12:52 PM, Jonathan Ellis jbel...@gmail.com wrote:
Michael Greene is working on something web-based:
Hello Everyone,
Is there a recommended backup/restore procedure to be able to recover a
failed node?
How does Cassandra keep track of a node's identity?
Should a replacement node keep the same IP address/DNS name as the original
node?
Does a node still receive data while a nodeprobe snapshot
There is the SUN JMX HtmlAdaptor that you can add to the mix; it exposes a
minimal HTML console via HTTP. It used to be packed with the SUN JMX RI, and
then I think it ended up in the OpenDMK (http://bit.ly/hqLf0). In any case,
they're packaged under Apache-incompatible terms (GPL2/CDDL), so
On Wed, Nov 18, 2009 at 12:05 PM, Jon Graham sjclou...@gmail.com wrote:
Hello Everyone,
Is there a recommended backup/restore procedure to be able to recover a
failed node?
Until tickets 193 and 520 are done, the easiest thing is to copy all
the sstables from the other nodes that have
Paul Querna pointed out yesterday that the CDDL is compatible with the
Apache license, with some limitations:
http://www.apache.org/legal/3party.html#category-b
On Wed, Nov 18, 2009 at 12:20 PM, Paul Brown paulrbr...@gmail.com wrote:
There is the SUN JMX HtmlAdaptor that you can add to the mix;
Hey Jonathan, why should a replacement node keep the same IP
address/DNS name as the original node? Wouldn't having the same token
as the node that went down be sufficient (provided that you did the
steps above of copying the data from the 2 neighboring nodes)?
On Wed, Nov 18, 2009 at 10:30 AM,
Tokens can change, so IP is used for node identification, e.g. for
hinted handoff.
On Wed, Nov 18, 2009 at 1:00 PM, Ramzi Rabah rra...@playdom.com wrote:
Hey Jonathan, why should a replacement node keep the same IP
address/DNS name as the original node? Wouldn't having the same token
as the
yes fedora core 11
any ideas on how to alleviate this issue
the conf params are really low too!
MemtableSizeInMB32/MemtableSizeInMB
!--
~ The maximum number of columns in millions to store in memory per
~ ColumnFamily before flushing to disk. This is also a per-memtable
~ setting.
Hello Jonathan,
Is the system table information contained in the system/Location* files?
How do I know which nodes hold the replicated copies when using ordered
preserving partitioning? Are replicas always stored in neighboring nodes?
Are the left (before) and right (after) nodes you mentioned
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
I'm sorry if this was covered before, but if you lose a node and
cannot bring it (or a replacement) back with the same IP address or
DNS name, is your only option to restart the entire cluster? E.g. if
I have nodes 1, 2, and 3 with replication factor 3, and then I lose
node 3, is it possible to
This happens when you flush and there was no data in the
binarymemtable. It's harmless (everything that does have data, still
gets flushed).
Since you're running from svn you can update to the latest 0.4 code
though which fixes the exception.
On Wed, Nov 18, 2009 at 1:43 PM, kevin
No, bootstrap is currently only for adding new nodes, not replacing dead ones.
On Wed, Nov 18, 2009 at 1:47 PM, Simon Smith simongsm...@gmail.com wrote:
I'm sorry if this was covered before, but if you lose a node and
cannot bring it (or a replacement) back with the same IP address or
DNS
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
all the 0.4 code is compatible in every sense.
On Wed, Nov 18, 2009 at 1:55 PM, kevin kevincastigli...@gmail.com wrote:
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
You could try exposing JMX metrics via a REST interface using
http://code.google.com/p/polarrose-jmx-rest-bridge, at which point curl
becomes your client.
On Wed, Nov 18, 2009 at 10:35 AM, Jonathan Ellis jbel...@gmail.com wrote:
Paul Querna pointed out yesterday that the CDDL is compatible with
I'd like to be able to say that a cluster of Cassandra servers keeps working
even if one of the nodes goes down. This would require the clients to connect
to a different node if the one that it's using goes down. Is there code on the
client side to do this already?
There's a Cassandra.Client
First off, very impressive project -- thanks for everyone's hard work!
I'm wondering how I would do date range queries in Cassandra, say for
all messages for a given user in the last week.
Can someone provide an example?
Thanks so much.
-Adam
--
Adam Fisk
http://www.littleshoot.org |
We are using the open source tcp balancer from
http://www.inlab.de/balance.html without any issues so far.
Freeman, Tim wrote:
I'd like to be able to say that a cluster of Cassandra servers keeps working
even if one of the nodes goes down. This would require the clients to
connect to a
*Got a new error from cassandra
Operation timed out!
Please let me know if this a normal error and how to fix this
thanks
java.util.concurrent.TimeoutException: Operation timed out - received only 0
responses from .*
at
The easiest is to store the messages in a row with timeuuid column
names. Then you can just use get_slice in either forward or reverse
order.
On Wed, Nov 18, 2009 at 6:07 PM, Adam Fisk a...@littleshoot.org wrote:
First off, very impressive project -- thanks for everyone's hard work!
I'm
We are using DNS name to access Cassandra pool. such as:
cassandra.mydomain.com, it point to the server list of Cassandra Node , when
client query the DNS name, it will result a random IP in the list to client.
if some node was down, the DNS server can automatic remove it's IP from IP
list.
There
Can you plase tell what this error is ?
ERROR - error writing key ruske
*java.util.concurrent.TimeoutException: Operation timed out - received only
0 responses from .*
at
org.apache.cassandra.service.QuorumResponseHandler.get(QuorumResponseHandler.java:88)
at
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