The double JVM option was a side effect of
https://issues.apache.org/jira/browse/CASSANDRA-1771 and will be
addressed with the next release. The rpm uses the cassandra.in.sh from
the debian directory for convenience.
The instance of cassandra-env.sh in /usr/share/cassandra/conf is kept
as a refere
Thanks for the confirmation.
Cheers.
On Sat, Dec 4, 2010 at 3:34 PM, Jonathan Ellis wrote:
> Looks like it was actually after rc1 artifacts were tagged and rolled
> (but before it was released). So the fix will be in rc2, or you can
> grab the 0.7 branch from svn before then.
>
> On Fri, Dec 3
Doesn't consistency level ALL=QUORUM at RF=2 ?
I have not had a chance to test your fix but I don't THINK this is the
issue. If it is the issue, how do consistency levels ALL and QUORUM differ
at this replication factor?
On Sat, Dec 4, 2010 at 12:03 AM, Jonathan Ellis wrote:
> I think you are r
I think you are running into
https://issues.apache.org/jira/browse/CASSANDRA-1316, where when an
inconsistency on QUORUM/ALL is discovered it always peformed the
repair at QUORUM instead of the original CL. Thus, reading at ALL you
would see the correct answer on the 2nd read but you weren't
guara
That makes sense, but this shouldn't make requests last for the
timeout duration -- at quorum, it should be responding to the client
as soon as it gets that second-fastest reply. If I'm understanding
right that this was making the response to the client block until the
overwhelmed node timed out,
Looks like it was actually after rc1 artifacts were tagged and rolled
(but before it was released). So the fix will be in rc2, or you can
grab the 0.7 branch from svn before then.
On Fri, Dec 3, 2010 at 6:44 PM, Tyler Hobbs wrote:
> Sounds like 1764:
>
> https://issues.apache.org/jira/browse/CAS
I am seeing fairly strange, behavior in my Cassandra cluster.
Setup
- 3 nodes (lets call them nodes 1 2 and 3)
- RF=2
- A set of servers (producers) which which write data to the cluster at
consistency level ONE
- A set of servers (consumers/processors) which read data from the cluster
at cons
On Fri, Dec 3, 2010 at 12:53 PM, Robert Coli wrote:
> On 12/3/10 6:09 AM, Jonathan Ellis wrote:
>>
>> Divide space used by average row size from cfstats
>>
>> On Fri, Dec 3, 2010 at 7:58 AM, Donal Zang wrote:
>>>
>>> RT.
>>> Is there any command or api?
>
> In 0.6.x :
>
> strings /path/to/cassand
Yes.
I thought that would make sense, no? I guessed that the quorum read
forces the slowest of the 3 nodes to keep the pace of the faster ones.
But it cant. No matter how small the performance diff is. So it will
just fill up.
Also when saying 'practically dead' and 'never recovers' I meant
Sounds like 1764:
https://issues.apache.org/jira/browse/CASSANDRA-1764
This was fixed in RC1.
- Tyler
On Fri, Dec 3, 2010 at 5:43 PM, Joshua Partogi wrote:
> Hi Jonathan,
>
> Thanks for the hint. This is the error that I get:
> ERROR [pool-1-thread-1] 2010-12-04 09:38:20,521 Cassandra.java (l
Hi Jonathan,
Thanks for the hint. This is the error that I get:
ERROR [pool-1-thread-1] 2010-12-04 09:38:20,521 Cassandra.java (line 3596)
Internal error processing system_update_column_family
java.lang.NullPointerException
at org.apache.cassandra.config.CFMetaData.apply(CFMetaData.java:665)
Am I understanding correctly that you had all connections going to one
cassandra node, which caused one of the *other* nodes to die, and
spreading the connections around the cluster fixed it?
On Fri, Dec 3, 2010 at 4:00 AM, Daniel Doubleday
wrote:
> Hi all
>
> I have found an anti pattern the oth
http://www.riptano.com/blog/whats-new-cassandra-07-secondary-indexes
On Thu, Dec 2, 2010 at 9:34 AM, Yann Perchec, Novapost <
yann.perc...@novapost.fr> wrote:
> Hello everybody,
>
> I'm playing since a couple of days with the cassandra-cli supplied with the
> Cassandra 0.7 RC.
> It seems that new
We are in the process of evaluating Cassandra for our needs and we expect to
use
parallelism for analytics on collected data. The following BLOG mentions that
Cassandra's Map-Reduce support does not support multiple column families
http://allthingshadoop.com/2010/04/24/running-hadoop-mapreduce
What is the impact (performance and I/O) of row size (in bytes) on
compaction?
What is the impact (performance and I/O) of number of super columns and
columns on compaction?
Does anyone has any details and data to share?
Thanks,
Naren
On 12/3/10 6:09 AM, Jonathan Ellis wrote:
Divide space used by average row size from cfstats
On Fri, Dec 3, 2010 at 7:58 AM, Donal Zang wrote:
RT.
Is there any command or api?
In 0.6.x :
strings /path/to/cassandra/data/Keyspace/*-Index.db | wc -l
=Rob
Thanks Jonathan.
Ok, will take look.
However wondering why we cannot use the (CASSANDRA_HOME/bin/cassandra) script
in the BeforeClass to start and stop-server (with pidfile) to stop it?
--- On Fri, 12/3/10, Jonathan Ellis wrote:
From: Jonathan Ellis
Subject: Re: Connection refused Err
Hi,
we increased heap space to 3 GB (with JRocket VM under 32-bit Win with
4 GB RAM)
but under "heavy" inserts Cassandra is still crashing with OutOfMemory
error after a GC storm.
It sounds very similar to https://issues.apache.org/jira/browse/CASSANDRA-1177
In our insert-tests the average
Created https://issues.apache.org/jira/browse/CASSANDRA-1813 so this
doesn't just silently not work.
On Thu, Dec 2, 2010 at 5:28 PM, Tyler Hobbs wrote:
> Unfortunately, super columns families are not yet supported for secondary
> indexes.
>
> - Tyler
>
> On Thu, Dec 2, 2010 at 5:22 PM, Nick Santi
Divide space used by average row size from cfstats
On Fri, Dec 3, 2010 at 7:58 AM, Donal Zang wrote:
> RT.
> Is there any command or api?
>
> Thanks!
>
>
>
--
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support
http://riptano.com
"internal error" means "there's an error in the server log"
On Fri, Dec 3, 2010 at 2:47 AM, Joshua Partogi wrote:
> Hi Jonathan,
>
> Thanks for the hint. I've tried it but it throws an error like this:
>
> [defa...@keyspace1] update column family Standard1 with column_metadata=[{
> column_name:us
Look at EmbeddedCassandraService
On Fri, Dec 3, 2010 at 2:13 AM, rambabu pakala wrote:
> Hi,
>
> Can someone Please help me?
>
> Using Cassandra 0.6.6 version on Linux System.
>
> I can Manually start Cassandra and can run the Junit tests(can see all the
> data from cli). However when i try to s
RT.
Is there any command or api?
Thanks!
Hm -
assuming that you have configured your initial tokens in a way that every next
start token lives in the other datacenter wouldn't it suffice to decrease rf to
2 switch to simple replication strategy switch off the old dc and start
repairs/cleanup?
every row should live in either primary
Thanks for the followup.
I have a few follow on questions:
In the case of using decommission, any idea of what happens when we
get to the last node in the old data center? Do you think it will
decommission properly?
I agree that this sounds like the easiest method. We have to see if
we can sup
Hi all
I have found an anti pattern the other day which I wanted to share, although
its pretty special case.
Special case because our production cluster is somewhat strange: 3 servers, rf
= 3. We do consistent reads/writes with quorum.
I did a long running read series (loads of reads as fast a
Hi Jonathan,
Thanks for the hint. I've tried it but it throws an error like this:
[defa...@keyspace1] update column family Standard1 with column_metadata=[{
column_name:user, index_type:0, validation_class:UTF8Type,
index_name:Standard1Idx }] and rows_cached=100;
Internal error processing system_
Hi,
Can someone Please help me?
Using Cassandra 0.6.6 version on Linux System.
I can Manually start Cassandra and can run the Junit tests(can see all the data
from cli). However when i try to start Cassandra from a test (with
@Beforeclass) getting Connection refused error.
Is there a way
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