Are there separate repos/packages for stable/unstable releases of Cassandra? I
was a bit surprised to find the official debian repo pushing out 0.8b2 as a
normal update to the cassandra package. Would it not be better to have a
cassandra-unstable package for bleeding edge and plain cassandra for
On 27 May 2011, at 10:10, Marcus Bointon wrote:
> Are there separate repos/packages for stable/unstable releases of Cassandra?
> I was a bit surprised to find the official debian repo pushing out 0.8b2 as a
> normal update to the cassandra package. Would it not be better to have a
> cassandra-u
Hi,
I'm using the jar from the trunk source code .
I tried the following select cql, but it get the wrong result.(I can get
the right result using pycassa's get_count())
/cqlsh> select count(1) from t_container where KEY = '2011041210' ;
(0,)
cqlsh> select count(*) from t_container where KEY =
On Thu, May 26, 2011 at 2:21 PM, Utku Can Topçu wrote:
> Hello,
>
> I'm using the the 0.8.0-rc1, with RF=2 and 4 nodes.
>
> Strangely counters are corrupted. Say, the actual value should be : 51664
> and the value that cassandra sometimes outputs is: either 51664 or 18651001.
What does sometimes
Hi,
I tried to mix windows and linux in a cassandra cluster version 0.7.4
and got an exception on a linux node bootstrapping from a windows node.
java.lang.StringIndexOutOfBoundsException: String index out of range: -1
at java.lang.String.substring(Unknown Source)
at
org.apache.cassandra.io.s
Right. This is not supported.
On May 27, 2011 7:25 AM, "Mikael Wikblom"
wrote:
> Hi,
>
> I tried to mix windows and linux in a cassandra cluster version 0.7.4
> and got an exception on a linux node bootstrapping from a windows node.
>
> java.lang.StringIndexOutOfBoundsException: String index out o
Hi -
Operations like repair and bootstrap on nodes in our cluster (average
load 150GB each) take a very long time.
By long I mean 1-2 days. With nodetool "netstats" I can see the
progress % very slowly progressing.
I guess there are some throttling mechanisms built into cassandra.
And yes the
(and if it did, it would be the SQL row count, which is different than
the column count from pycassa.)
On Fri, May 27, 2011 at 10:13 AM, Jonathan Ellis wrote:
> CQL does not support count().
>
> On Fri, May 27, 2011 at 4:18 AM, Donal Zang wrote:
>> Hi,
>> I'm using the jar from the trunk source
On Fri, May 27, 2011 at 9:08 AM, Jonathan Colby wrote:
> Hi -
>
> Operations like repair and bootstrap on nodes in our cluster (average
> load 150GB each) take a very long time.
>
> By long I mean 1-2 days. With nodetool "netstats" I can see the
> progress % very slowly progressing.
>
> I guess
CQL does not support count().
On Fri, May 27, 2011 at 4:18 AM, Donal Zang wrote:
> Hi,
> I'm using the jar from the trunk source code .
> I tried the following select cql, but it get the wrong result.(I can get the
> right result using pycassa's get_count())
> cqlsh> select count(1) from t_conta
We have a 4 node cluster with a replication factor of 2. When one node dies,
the other nodes throw UnavailableExceptions for quorum reads (as expected
initially). They never get out of that state.
Is there something we can do in nodetool to make the remaining nodes
function?
Thanks.
--
Quorum of 2 is 2. You need at least RF=3 for quorum to tolerate losing
a node indefinitely.
On Fri, May 27, 2011 at 10:37 AM, Paul Loy wrote:
> We have a 4 node cluster with a replication factor of 2. When one node dies,
> the other nodes throw UnavailableExceptions for quorum reads (as expected
ahh, thanks.
On Fri, May 27, 2011 at 4:43 PM, Jonathan Ellis wrote:
> Quorum of 2 is 2. You need at least RF=3 for quorum to tolerate losing
> a node indefinitely.
>
> On Fri, May 27, 2011 at 10:37 AM, Paul Loy wrote:
> > We have a 4 node cluster with a replication factor of 2. When one node
>
I guess my next question is: the data should be complete somewhere in the
ring with RF = 2. Does cassandra not redistribute the replication ring
without a nodetool decommission call?
On Fri, May 27, 2011 at 4:45 PM, Paul Loy wrote:
> ahh, thanks.
>
> On Fri, May 27, 2011 at 4:43 PM, Jonathan Ell
Thanks Ed! I was thinking about surrendering more memory to mmap
operations. I'm going to try bringing the Xmx down to 4G
On Fri, May 27, 2011 at 5:19 PM, Edward Capriolo wrote:
>
>
> On Fri, May 27, 2011 at 9:08 AM, Jonathan Colby
> wrote:
>>
>> Hi -
>>
>> Operations like repair and bootstr
i use cassandra database replicated in two servers,when want to delete a record
using this line :
client.remove(keyspace, sKey, new ColumnPath(columnFamily), timestamp,
ConsistencyLevel.ONE);
but when i check,i see that the record still exist!
any idea
BR
What is the ConsitencyLevel of your reads? A ConsistencyLevel.ONE remove
returns when it has deleted the record from at least 1 replica (and any other
ones will be deleted when they can). It could be the case that you are deleting
the record off of one node and then reading it off of the other o
> i use cassandra database replicated in two servers,when want to delete a
> record using this line :
> client.remove(keyspace, sKey, new ColumnPath(columnFamily), timestamp,
> ConsistencyLevel.ONE);
>
> but when i check,i see that the record still exist!
Are you using a "real" timestamp such th
It does not. (Most failures are transient, so Cassandra doesn't
inflict the non-negligible performance impact of re-replicating a full
node's worth of data until you tell it "that guys' not coming back
this time.")
On Fri, May 27, 2011 at 10:47 AM, Paul Loy wrote:
> I guess my next question is: t
Sounds reasonable.
Thanks.
On Fri, May 27, 2011 at 7:12 PM, Jonathan Ellis wrote:
> It does not. (Most failures are transient, so Cassandra doesn't
> inflict the non-negligible performance impact of re-replicating a full
> node's worth of data until you tell it "that guys' not coming back
> thi
Glad to report I fixed this problem.
1. I added the load_ring_state=false flag
2. I was able to arrange a time where I could take down the whole
cluster and bring it back up.
After that the "phantom" node disappeared.
On Fri, May 27, 2011 at 12:48 AM, wrote:
> Hi Aaron - Thanks alot for the gre
is this combination feature available , or on track ?
thanks
Yang
No. See comments to https://issues.apache.org/jira/browse/CASSANDRA-2103
On Fri, May 27, 2011 at 7:29 PM, Yang wrote:
> is this combination feature available , or on track ?
>
> thanks
> Yang
>
--
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of DataStax, the source for profession
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