Last I heard only Oracle's JDK was officially supported with Cassandra,
possibly nitpicky but is this still the case?
On Jun 26, 2012, at 3:37 PM, Dustin Wenz wrote:
> (OpenJDK 7) was pegged at 200% CPU
Hello
Too much GC? Check JVM heap settings and real usage.
On 06/27/2012 01:37 AM, Dustin Wenz wrote:
We occasionally see fairly poor compaction performance on random nodes in our
7-node cluster, and I have no idea why. This is one example from the log:
[CompactionExecutor:45] 2012-06
There is nothing listed in the News file
https://github.com/apache/cassandra/blob/cassandra-1.1/NEWS.txt
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 26/06/2012, at 3:16 AM, Thierry Templier wrote:
> Hello,
>
> What is the correct way
Dear all,
I am trying to use "sstableloader" in cassandra 1.1.1, to bulk load some
data into a single node cluster.
I am running the following command:
bin/sstableloader -d 192.168.100.1 /data/ssTable/tpch/tpch/
from "another" node (other than the node on which cassandra is running),
while the d
We occasionally see fairly poor compaction performance on random nodes in our
7-node cluster, and I have no idea why. This is one example from the log:
[CompactionExecutor:45] 2012-06-26 13:40:18,721 CompactionTask.java
(line 221) Compacted to
[/raid00/cassandra_data/main/basic/main-bas
Hello all,
It has not been very long since the first book was published but
several things have been added to Cassandra and a few things have
changed. I am putting together a list of changed content, for example
features like the old per Column family memtable flush settings versus
the new system
i have seen this as well, is it a known issue?
On 18/06/2012 19:38, Gurpreet Singh wrote:
I found a fix for this one, rather a workaround.
I changed the rpc_server_type in cassandra.yaml, from hsha to sync,
and the error went away. I guess, there is some issue with the thrift
nonblocking ser
I re-read my last post and didn't think I had done a good job articulating.
Sorry! I'll try again...
Say I choose LOCAL_QUORUM with a Replication Factor of 3. Cassandra
stores three copies in my local datacenter. Therefore the cost
associated with "losing" one node is not very high locally, and I
Let me attempt to articulate my question a little better.
Say I choose LOCAL_QUORUM with a Replication Factor of 3. Cassandra
stores three copies in my local datacenter. Therefore the cost
associated with "losing" one node is not very high locally, and I
usually HH, and use read repair/nodetool re
Hi
After enable Cassandra debug log, I got following log, it shows the
delete mutation send to other two nodes rather then local node.
And then the read command come to the local nodes.
And local one found the mismatch.
But I don't know why local node return the local dirty data. It suppose
On Tue, Jun 26, 2012 at 8:16 AM, Karthik N wrote:
> Since Cassandra optimizes and sends only one copy over the WAN, can I opt
> in only for HH for WAN replication and avoid HH for the local quorum?
> (since I know I have more copies)
>
>
>
I am not sure if I understand your question. In general I
Since Cassandra optimizes and sends only one copy over the WAN, can I opt
in only for HH for WAN replication and avoid HH for the local quorum?
(since I know I have more copies)
On Tuesday, June 26, 2012, Mohit Anchlia wrote:
>
> On Tue, Jun 26, 2012 at 7:52 AM, Karthik N
>
> > wrote:
>
>> My C
On Tue, Jun 26, 2012 at 4:00 PM, Henning Kropp wrote:
> Thanks for the reply. Should have thought about looking into the log files
> sooner. An AssertionError happens at execution. I haven't figured out yet
> why. Any input is very much appreciated:
>
> ERROR [ReadStage:1] 2012-06-26 15:49:54,48
On Tue, Jun 26, 2012 at 7:52 AM, Karthik N wrote:
> My Cassandra ring spans two DCs. I use local quorum with replication
> factor=3. I do a write in DC1 with local quorum. Data gets written to
> multiple nodes in DC1. For the same write to propagate to DC2 only one
> copy is sent from the coordin
My Cassandra ring spans two DCs. I use local quorum with replication
factor=3. I do a write in DC1 with local quorum. Data gets written to
multiple nodes in DC1. For the same write to propagate to DC2 only one
copy is sent from the coordinator node in DC1 to a coordinator node in
DC2 for optimizing
Hello,
I am evaluating Cassandra in a log retrieval application. My ring conists of3
m2.xlarge instances (17.1 GB memory, 6.5 ECU (2 virtual cores with 3.25 EC2
Compute Units each), 420 GB of local instance storage, 64-bit platform) and I
am writing at roughly 220 writes/sec. Per day I am addi
Thanks for the reply. Should have thought about looking into the log files
sooner. An AssertionError happens at execution. I haven't figured out yet why.
Any input is very much appreciated:
ERROR [ReadStage:1] 2012-06-26 15:49:54,481 AbstractCassandraDaemon.java (line
134) Exception in thread T
Ok the '--' was the problem ... LOL
2012/6/26 Juan Ezquerro
> Hi,
>
> I create this column family:
>
>
> CREATE COLUMN FAMILY Clients
> WITH column_type='Super'
> AND key_validation_class = LongType -- master_id
> AND comparator = LongType -- client_id
> AND subcomparator
Hi,
I create this column family:
CREATE COLUMN FAMILY Clients
WITH column_type='Super'
AND key_validation_class = LongType -- master_id
AND comparator = LongType -- client_id
AND subcomparator = UTF8Type
AND column_metadata = [
{column_name: client_name, validation_class:
On Mon, Jun 25, 2012 at 9:28 AM, Sylvain Lebresne wrote:
> On Mon, Jun 25, 2012 at 9:06 AM, Patrik Modesto
> wrote:
>> I'm used to use Mutation for everything, so the first thing I tried
>> was Deletion on Counter column. Well, nothing happened. No error and
>> the Counter column was still there.
On Mon, Jun 25, 2012 at 11:10 PM, Henning Kropp wrote:
> Hi,
>
> I am running into timeout issues using composite columns in cassandra 1.1.1
> and cql 3.
>
> My keyspace and table is defined as the following:
>
> create keyspace bn_logs
> with strategy_options = [{replication_factor:1}]
>
Hi,
but if the data must be converted, this is something that should be fixed
inside cassandra… Is this a bug, should I file a bug report?
Or is there some kind of setting I can change to make it work for now?
Maybe it is related to this issue, but this should have been fixed in 1.1.0:
https://
Dear all,
I am trying to understand whether I can fasten the retrieval process using
cache. Please can you help me write the code for setting the cache properties
in Cassandra.
Please help
Thanks and Regards
Prakrati
This email message may contain proprietary
Hi
please refer JDK nio package's ByteBuffer, I don't think that ByteBuffer
can be cast from the BigInteger directly,
it seems you need make some conversion before put it into a ByteBuffer.
Thanks
Fei
On Tue, Jun 26, 2012 at 12:07 AM, Ivo Meißner wrote:
> Hi,
>
> I am running into some prob
Hi,
I am running into some problems with secondary indexes that I am unable to
track down. When I restart the cassandra service, the secondary index data
won't load and I get the following error during startup:
INFO 08:29:42,127 Opening
/var/myproject/cassandra/data/mykeyspace/group_admin/myk
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