okay, I am not sure if it is infinite loop, I change log4j to DEBUG only
because cassandra never get online after run cassandra, it seems just halt.
I enable debug then it start showing those message very fast and never end.
I have just run nodetool cleanup, and it start reading commitlog, seems
Thanks a lot dear. I will try it out and will let you know if the problem
persists.
On Thu, Jul 14, 2011 at 5:52 AM, Sameer Farooqui cassandral...@gmail.comwrote:
As long as you have no data in this cluster, try clearing out the
/var/lib/cassandra directory from all nodes and restart
Hi out there,
it was a bit quiet now because I am changing the framework with which Apollo
is built, to get away from the flash-based charting. But it continues ...
Another question is: What would be a good name for that UI, Apollo seems to
be used in another Cassandra context?
Greets
Markus
I couldn't find any schema example for the supercolumn column family
that is strongly typed. For example,
create column family Super1 with comparator=UTF8Type and
column_type=Super and key_validation_class=UTF8Type and
column_metadata = [
{column_name: username, validation_class:UTF8Type},
All:
I have four cassandra servers in cluster. I do not restart any one of
the servers, why the following print show the four servers restart many
times? What is the possible reason? The connection between the four
server's is good.
Swap may be used, because there are other applications run with
All:
What is the following error mean?
ERROR [pool-1-thread-62] 2011-07-14 14:31:04,671
CustomTThreadPoolServer.java (line 173) Error occurred during processing
of message.
java.lang.NegativeArraySizeException
at
Hi
I have been playing around with Cassandra and its Java Thrift Client.
From my understanding, one could get/retrieve a Keyspace, KsDef object, using
the describe_keyspace(String name) method on the Cassandra.Client object.
Subsequently, one could get a list of all the ColumnFamily
I finally upgraded to 0.7.4 - 0.8.0 (using riptano packages) 2 days ago.
Before, my resident memory (for the java process) would slowly grow without
bound and the OS would kill the process. But, over the last 2 days, I
_think_ it's been stable. I'll let you know in a week :-)
My other stats:
On Thu, Jul 14, 2011 at 8:58 AM, Albert Vila a...@imente.com wrote:
Anyone has Cassandra's cacti templates for server 0.7.4+?
On 20 December 2010 17:40, Edward Capriolo edlinuxg...@gmail.com wrote:
On Sun, Dec 19, 2010 at 10:37 PM, Dave Viner davevi...@gmail.com
wrote:
Can you share the
That means something sent a nonsense request to Cassandra. Often this
happens when a non-Cassandra client connects on the Thrift port.
On Thu, Jul 14, 2011 at 3:01 AM, Donna Li donna...@utstar.com wrote:
All:
What is the following error mean?
ERROR [pool-1-thread-62] 2011-07-14
I tried putting the cassandra.yaml in the classpath but got the same error.
Adding -Dcassandra.config=file:/path/to/cassandra.yaml did work.
-
Derek Tracy
trac...@gmail.com
-
On Wed, Jul 13, 2011 at 6:22 PM, Jonathan Ellis
Still trying to integrate Cassandra's CQL JDBC driver with my companies ETL
but ran into another roadblock.
I will caveat this post with I do not know a lot about JDBC and how it is
implemented
When trying to test the connection (using the ETL) I get an Unsupported
Method exception, I looked at
These 0 byte files with -Compacted suffix indicate that the
associated sstables can be removed.
In current version, Cassandra delete compacted sstables at Full GC and
on startup.
maki
2011/7/14 Sameer Farooqui cassandral...@gmail.com:
Running Cassandra 0.8.1. Ran major compaction via:
sudo
On 07/13/2011 03:57 PM, Aaron Morton wrote:
You can always use a dedicated CF for the counters, and use the same row key.
Of course one could do this. The problem is you are now spending ~2x
disk space on row keys, and app specific client code just became more
complicated.
Thanks Aaron Chris, I appreciate your help.
With dedicated CF for counters, in addition to the issue pointed by Chris,
the major drawback I see is that I cant read *in a single query* the
counters with the regular columns row which is widely required by my
application.
My use case is like
You were right, Maki. Restarting Cassandra cleaned up the directory and now
there are only two SSTable files.
On Thu, Jul 14, 2011 at 9:08 AM, Maki Watanabe watanabe.m...@gmail.comwrote:
These 0 byte files with -Compacted suffix indicate that the
associated sstables can be removed.
In
So, in our experience, the amount of storage overhead is much higher. If you
plan on storing 120TB of data, you will want to expect storing 250 TB of
data on disk after the data over head. And then since you have to leave 50%
of storage space free for compaction, you're looking at needing about
We just set up a demo cluster with Cassandra 0.8.1 with 12 nodes and loaded
1.5 TB of data into it. However, the actual space on disk being used by data
files in Cassandra is 3 TB. We're using a standard column family with a
million rows (key=string) and 35,040 columns per key. The column name is
Yep there was an issue here. RPM has been updated to 0.8.1-2 and
deployed. Thanks for tracking this down.
On Wed, Jul 13, 2011 at 3:58 PM, Aaron Turner synfina...@gmail.com wrote:
Thanks. Looks like we tracked down the problem to the datasax 0.8.1
rpm is actually 0.8.0.
rpm -qa | grep
Use describe keyspace and see the settings are right.
Check the logs on all the servers, Make sure you dont see errors... Check
JNA jar in all the servers.
Regards,
/VJ
On Wed, Jul 13, 2011 at 1:29 PM, Raj N raj.cassan...@gmail.com wrote:
How do I ensure it is indeed using the
How about GC logs, what are your pause times? JVM settings might help
If you are not sure how to enable GC logs check cassandra.yaml look
for application pause times. it is highly recommended not to swap -- include
JNA jar.
Regards,
/VJ
On Thu, Jul 14, 2011 at 1:42 AM, Donna Li
The deployed version is based on 0.6.13.
After nodetool drain is invoked on one of the nodes, the commit log is not
emptied. Is this the expected behavior? If so, how can I rename a column
family on 0.6.x branch?
Here is the log output:
INFO [COMMIT-LOG-WRITER] 2011-07-15 00:39:49,541
Hi,
For now, cassandra support setting ttl on columns, is there any way to do
the same to a record/row?
Regards
Boris
It's expected to have a new, empty segment after drain completes.
2011/7/14 Zhu Han schumi@gmail.com:
The deployed version is based on 0.6.13.
After nodetool drain is invoked on one of the nodes, the commit log is not
emptied. Is this the expected behavior? If so, how can I rename a
No. Just set it on all the columns.
On Thu, Jul 14, 2011 at 7:08 PM, Boris Yen yulin...@gmail.com wrote:
Hi,
For now, cassandra support setting ttl on columns, is there any way to do
the same to a record/row?
Regards
Boris
--
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of
Hi Jonathan,
In this case, will this record with no column be removed from cassandra
automatically? if no, do you have any plan on supporting it?
Regards
Boris
On Fri, Jul 15, 2011 at 10:43 AM, Jonathan Ellis jbel...@gmail.com wrote:
No. Just set it on all the columns.
On Thu, Jul 14, 2011
If you have non-empty segments post-drain that is a bug. Is it reproducible?
2011/7/14 Zhu Han schumi@gmail.com:
Jonathan,
But all the old non-empty log segments are kept on the disk. And cassandra
takes some time to apply the operations from these closed log segments after
restart of
2011/7/15 Jonathan Ellis jbel...@gmail.com
If you have non-empty segments post-drain that is a bug. Is it
reproducible?
I think it is always reproducible on 0.6.x branch. Here is a simple
experiment:
1) bin/nodetool -h localhost
2) During flush the memtables, we can observe the name of
well I am not a JVM guru, but it seem server has memory problem.
13 10:44:57,748 Gossiper.java (line 579) InetAddress /10.63.61.74 is now
UP
INFO [Timer-0] 2011-07-13 15:56:44,630 Gossiper.java (line 181)
InetAddress /10.63.61.74 is now dead.
INFO [GMFD:1] 2011-07-13
Thanks a lot. ^^
My project can make good use of this feature.
On Fri, Jul 15, 2011 at 10:59 AM, Jonathan Ellis jbel...@gmail.com wrote:
On Thu, Jul 14, 2011 at 7:50 PM, Boris Yen yulin...@gmail.com wrote:
Hi Jonathan,
In this case, will this record with no column be removed from cassandra
Hi,
We're presently trying to use Cassandra as a storage/retrieval system for live
data composite counters (on the data).
As we work on telecom data records (voice call/sms/GPRS xDRs), the data volume
is simply HUGE, and we definitely need a controlled caching mechanism in
front of the
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