Is there a sustained difference or did it settle back ?
Could this have been compaction or repair or upgrade tables working ?
Do the read / write counts available in nodetool cfstats show anything
different ?
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
n the sstable header will help here.
Note that columns are not purged unless all fragments from the row are included
in the compaction. This could be a problem. It probably depends on your
workload though.
Hope that helps.
-
Aaron Morton
Freelance Cassandra Developer
New Ze
> Classcastexception: can not convert java.lang.String to some another java
> type( i don't remember exact java class).
It's a lot easier to help if you include the full error.
Cheers
---------
Aaron Morton
Freelance Cassandra Developer
New Zealand
@
---
RowKey: 66
=> (column=1, value=val, timestamp=135595439049, ttl=7884000)
=> (column=10, value=val, timestamp=135595439269, ttl=7884000)
...
=> (column=indexedColumn, value=66, timestamp=1355952223881937, ttl=7887600)
Looking into it now.
Thanks
Well that was fun https://issues.apache.org/jira/browse/CASSANDRA-5079
Just testing my idea of a fix now.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 20/12/2012, at 10:33 AM, aaron morton wrote:
>> Please
Yes, but they will get compacted away again unless the patch is there.
it's a small patch so you should be able to apply it easily enough if you need
a fix ASAP.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
copy part done
pretty quickly. If that's the case you can:
1) do the main copy
2) stop the old system.
3) do the delta copy
4) start the new system
That way you will not have stale reads in the new system.
Hope that helps.
-
Aaron Morton
Freelance Cassandra Developer
New
> THe number of files in the data directory is around 29500+.
If you are using Levelled Compaction it is probably easier to set the ulimit to
unlimited.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 21/12/2
me (if this is not already the case) so
> that you have repeatable results.
Take a look at the nodetool getendpoints command. It will tell you which nodes
a key is stored on. Though for RF 3 and N3 it's all of them :)
Cheers
-
Aaron Morton
Freelance Cassandra Developer
in rack 1.
If you are using racks it's best to have an even distribution of nodes and the
RF to be a multiple of the number of racks.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 21/12/2012, at 8:13 AM, Rob Co
>> -d '127.0.0.1' 'C:\Anand\Workspace\H2C_POC\Customer'
Are you using the quotes on the command line / in the arguments ?
Try without them.
>> I end up having "Unknown directory: 'C:\Anand\Workspace\H2C_POC\Customer'"
>> error.
Whats
NE internal column / cell, the shipname
* the internal column / cell "shipname" is a composite of the *value* of
time_seen. e.g.
Hope that helps.
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 23/12/2012, at
tes, I do not know of any other technical
issues for running repair. And I have seen a lot of systems running without
out. (I just prefer a very boring life).
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 23/12
The line numbers in the stack trace do not match the code for 1.1.6.
I would blow away the install and check your java install.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 22/12/2012, at 6:59 PM, Vivek Mishra
ter
with local disks. It also introduces a single point of failure into a
distributed system.
> but it's likely in the Linux disk cache, given the sizing of the
> node/data/jvm.
Are you sure that the local Linux machine is going to cache files stored on the
SAN ?
Cheers
> Currently I'm thinking of having a separate Counter CF just to keep the
> number of unread messages in there. Is this a good approach?
Yup.
Add a UserMetrics CF with columns for the counts you want to keep.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
sh. Or by
kicking of a user defined compaction using the JMX interface.
> 3) Any words of warning when undergoing this?
Make sure you have a good breakfast.
(It's more general advice than Cassandra specific.)
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New
Without knowing any details of your problem, try using a Time To Live on the
column.
You will get a better reply if you ask a more specific question.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 3/01/2013, at 5
, which is
sometimes zero'd out so you can reproduce a UUID for a specific time. See
http://en.wikipedia.org/wiki/Universally_unique_identifier#Version_1_.28MAC_address.29
and http://wiki.apache.org/cassandra/FAQ#working_with_timeuuid_in_java
Hope that helps.
---------
Aaron Morton
Free
And then the size of issue depends somewhat on the size
of the inserts you are running. i.e. a smaller insert size means less re-work.
There are also potential performance issues if you have secondary indexes on
the row.
Hope that helps.
-----
Aaron Morton
Freelance Cassa
queuing cf messages that occur
immediately after writing cf messages.
Hope that helps.
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 4/01/2013, at 4:25 AM, André Cruz wrote:
> Does anyone see anything wrong in these se
Michael,
Could you share some of your problems ? May be of help for others.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 4/01/2013, at 5:45 AM, Michael Kjellman wrote:
> I'm having huge upgrad
.
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 4/01/2013, at 5:56 AM, Alain RODRIGUEZ wrote:
> Wow, so you're going live with 1.2.0, good luck with that. When it's done,
> whould you mind letting me know if ever
ams
if you wanted to.
Hope that helps.
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 4/01/2013, at 7:22 AM, Renato Marroquín Mogrovejo
wrote:
> Hi all,
>
> I have started playing around with Cassandra and
sip;
echo "Sleeping for 10..."
sleep 10;
echo "Drain..."
nodetool -h localhost drain;
echo "Sleeping for 10..."
sleep 10;
echo "Stopping..."
sudo monit stop cassandra;
A
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
h
> Instead, I get an error from CassandraStorage that the initial address isn't
> set (on the slave, the master is ok).
Can you post the full error ?
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 4/01/201
Collections might be what you are looking for
http://www.datastax.com/dev/blog/cql3_collections
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 4/01/2013, at 11:35 AM, Renato Marroquín Mogrovejo
wrote:
> Tha
> Are they never removed in fear of removing snapshots?
Aye.
Their should be shapshots in there
https://github.com/apache/cassandra/blob/trunk/conf/cassandra.yaml#L402
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
stones.
> Do tombstones take up bloomfilter space after gc_grace_period?
Any row, regardless of the liveness of the columns, takes up bloom filter space
(in -Filter.db).
Once the row is removed it will no longer take up space.
Cheers
-
Aaron Morton
Freelan
Riak has an out of the box S3 compatible service
http://basho.com/products/riakcs/. Not sure what the pricing is.
Hope that helps.
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 7/01/2013, at 4:46 AM, Attila Nagy wrote:
I'm not aware of any issues with using the thrift API with
http://pycassa.github.com/pycassa/ and 1.2
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 7/01/2013, at 8:21 AM, Adam Venturella wrote:
> I h
ou have purged the deleted data, keep an eye on the sstables. If it looks
like the one created by major compaction is not going to get compaction for a
long time come back and ask about "anti compacting" / "sstable split".
Hope that helps.
-
Aaron Morton
> I know work is in progress to fix this...
AFAIK CF's created by CQL 3 using COMPACT STORAGE are visible to thrift. Those
created without it are not, and will not, be visible to thrift.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmor
ase
the max JVM heap to get through your maintenance task.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 8/01/2013, at 1:35 AM, Mike wrote:
> Thanks,
>
> Another related question. In the situation desc
cassandra log do
not show anything the next thing to look at is work load. Look for things like
wide gets on wide rows, long lived rows with many deletes.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 8/01/2013,
Take a look at iostat -x 5 to see if your disks are dogging it.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 8/01/2013, at 9:13 AM, Michael Kjellman wrote:
> Size tiered or leveled compaction?
>
> Fr
Assuming their were no further writes, running repair or using CL all should
have fixed it.
Can you describe the inconsistency between runs?
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 8/01/2013, at 2:16 AM
probably block the writes.
> Although the design of a resource is important, isn't there any method of
> perceiving a process down beforehand?
Not sure what you mean here.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thel
payload. This is the same as
messages that go between nodes within the same DC.
>> - Is there anything that can be done to reduce cross-DC replication
>> traffic? Perhaps some compression scheme?
fixed in 1.2
https://issues.apache.org/jira/browse/CASSANDRA-3127?attachmentOrder=desc
C
I was going to say update the Wiki, but it's already there.
Thanks for contributing.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 9/01/2013, at 1:02 AM, Tomek Kuprowski wrote:
> Dear all,
>
&g
storm-project.net/ and register for this talk from a
Brian O'Neill one of my fellow Data Stax MVP's
http://learn.datastax.com/WebinarCEPDistributedProcessingonCassandrawithStorm_Registration.html
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmor
x27;s to 100's millions of things in the same month you
may want to do some performance testing. There can still be times when you want
to support common read paths by using custom / hand rolled indexes.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronm
Do these help?
https://issues.apache.org/jira/browse/CASSANDRA-4874
https://issues.apache.org/jira/browse/CASSANDRA-4875
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 9/01/2013, at 1:21 PM, Frank Hsueh wrote:
>
And by default in CQL 3 the timestamp is generated server side.
There is an option to provide them client side however.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 10/01/2013, at 3:32 AM, Vegard Berget wrote
must have the same name.
By only deleting the LocationInfo CF your schema will be preserved. You do not
have to move / delete any of the user data.
Hope that helps.
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 10/01/2013
y will fail.
Hope that helps.
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 10/01/2013, at 11:40 AM, Jabbar
Try this http://wiki.apache.org/cassandra/FAQ#iter_world
Take a look at the code examples it points to.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 10/01/2013, at 11:55 AM, Snehal Nagmote wrote:
> Hello
> I think Arron meant /var/lib/cassandra (by default)
Yup, sorry.
A
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 10/01/2013, at 4:38 PM, Michael Kjellman wrote:
> I think Arron meant /var/lib/cassandra (by d
be using thrift, and if you are
not setting the timestamp the client will be doing it for you.
In either case it's always good to have the clocks as syncronised as possible.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle
Then migrate the data from
the old rows to the new one and remove the old row.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 11/01/2013, at 12:37 AM, André Cruz wrote:
> Hello.
>
> I have a schema to repr
tremendous amount of experience. But this is the first time I've tried to
> use the
> wide-row support, which makes me a little suspicious. The wide-row support is
> not
> very well documented, so maybe I'm doing something wrong there in ignorance.
>
> Brian
>
>
> Is this possible without using multiple rows in CQL3 non compact tables?
Depending on the number of (log record) keys you *could* do this as a map type
in your CQL Table.
create table log_row (
sequence timestamp,
props map
)
Cheers
-----
Aaron Morton
Freelance Cassan
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 14/01/2013, at 12:56 AM, Radim Kolar wrote:
> do not use cassandra for implementing queueing system with high throughput.
> It does not scale because of tombstone managemen
overhead?
Cheers
A
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 15/01/2013, at 6:56 AM, Sylvain Lebresne wrote:
> On Mon, Jan 14, 2013 at 5:04 PM, Shahryar Sedghi wrote:
> Can I always count on this order, or it may
That looks technically correct for pre 1.2, in 1.2 the name of the column has
changed to cluster_name.
Note that you are diving into internals and that way be danger.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
--set java /usr/lib/jvm/java-6-sun/jre/bin/java
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 11/01/2013, at 10:55 PM, "Sloot, Hans-Peter"
wrote:
> Hi,
> I removed the open-jdk packages which caused
way to achieve this in cql or jpa query language?
>
> Thanks,
> Snehal
>
> On 9 January 2013 16:28, aaron morton wrote:
> Try this http://wiki.apache.org/cassandra/FAQ#iter_world
>
> Take a look at the code examples it points to.
>
> Cheers
>
> ---
t; written otherwise I could lose some updates.
I think you can do it without synchronisation or ZK.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 11/01/2013, at 12:10 PM, André Cruz wrote:
> On Jan 10, 2013, at
> Any idea whether interoperability b/w Thrift and CQL should work properly in
> 1.2?
AFAIK the only incompatibility is CQL 3 between pre 1.2 and 1.2.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 16/01/2013
The thrift request is not sending a composite type where it should. CQL 3 uses
composites in a lot of places.
What was your table definition?
Are you using a high level client or rolling your own?
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
ed by wide reads ?
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 16/01/2013, at 6:23 AM, Reik Schatz wrote:
> Hi, we are running a 1.1.6 (datastax) test cluster with 6 nodes. After the
> recent 1.2 release
If you think you have located a bug in Astyanax please submit it to
https://github.com/Netflix/astyanax
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 17/01/2013, at 3:44 AM, Sávio Teles wrote:
> We have multi
round the
switch lock. Trying reducing the commitlog_segment_size_in_mb so that less CF's
are flushed.
Hope that helps
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 17/01/2013, at 10:30 AM, Nicolas Lalevée wrote:
>
lso interested to know if LCS helps.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 17/01/2013, at 2:55 PM, Bryan Talbot wrote:
> According to the timestamps (see original post) the SSTable was written
> and thrift operation code :-
You life will be a lot easier if you use one of the many find Java Cassandra
clients such as https://github.com/Netflix/astyanax or
https://github.com/hector-client/hector.
They know how to talk to C*
Cheers
-----
Aaron Morton
Freelance Cassan
When a digest mis match happens the read has to be run again, and that takes
time.
You should continue to use nodetool repair on each node once every
gc_grace_seconds to ensure tombstones are distributed.
Cheers
-----
Aaron Morton nodetool
Freelance Cassandra Developer
New Zealand
> Semi-lame post to this mailing list i guess :( I should have checked that
> earlier
No problems.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 17/01/2013, at 11:50 PM, Reik Schatz wrote:
> Cool featur
anax
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 18/01/2013, at 7:48 AM, James Lyons wrote:
> Silly question -- but does hive/pig hadoop etc work with cassandra
> 1.1.8? Or only with 1.2? We are using astyanax li
Use the NetworkTopologyStrategy, it's the default and it saves a lot of trouble
later.
There is no real performance difference between NTS and SS. The NTS uses the
information provided by the snitch, it does not perform any network access.
Cheers
-
Aaron Morton
Free
or wait
times.
If the proxyhistograms is showing most requests running faster than your app
says it's your app.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 19/01/2013, at 8:16 AM, Tyler Hobbs wrote:
that resets each time you read from it.
Also, parallel levelled compaction in 1.2
http://www.datastax.com/dev/blog/performance-improvements-in-cassandra-1-2
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 20/01/201
of CPU time.
If you are logging a log of GC events you should look into it.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 22/01/2013, at 3:28 AM, Nicolas Lalevée wrote:
> Le 17 janv. 2013 à 05:00, aaron m
rry about sorting.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 22/01/2013, at 4:40 AM, Viktor Jevdokimov
wrote:
> Do you experience any performance problems?
>
> This will be the last thin
William,
If the solution from Binh works for you can you please submit a ticket
to https://issues.apache.org/jira/browse/CASSANDRA
The error message could be better if that is the case.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
On the subject of bug report -- I probably will -- but I'll wait a bit for
perhaps the excessive logging could be handled better, please add a ticket when
you have time.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.co
The histogram does not look right to me, too many SSTables for an LCS CF.
It's a symptom no a cause. If LCS is catching up though it should be more like
the distribution in the linked article.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronm
gt; - Does that mean I'll have to run at least 4 nodes in each DC? (3 for RF:3
> and one additional in case one fails)
3 nodes and RF 3 is ok.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 23/01/2013, at 8:3
ing CL QUOURM you need at least 2 nodes to
be up.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 24/01/2013, at 12:43 AM, Sávio Teles wrote:
> We are using ChunkedStorage described in
> https://github.co
need to?
> 3- Does my commit log decrease as much as my sstable increases? Is it a rule?
No.
The commit log is all writes, the memtables and the sstables are the "latest"
writes for the columns.
Cheers
-
Aaron Morton
Freelance Cassandra Develop
re better off using your laptop than micro instances.
For playing around try m1.large and terminate them when not in use.
To make life easier use this to make the cluster for you
http://www.datastax.com/docs/1.2/install/install_ami
Cheers
-----
Aaron Morton
Freelance Cassandra Deve
How did you create the table?
Anyways that looks like a bug, I *think* they should go here
http://code.google.com/a/apache-extras.org/p/cassandra-dbapi2/issues/list
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On
Can you provide details of the snitch configuration and the number of nodes you
have?
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 25/01/2013, at 9:39 AM, Gabriel Ciuloaica wrote:
> Hi Tyler,
>
> N
Deletes must be written to disk otherwise they are lost.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 28/01/2013, at 3:29 AM, Kasun Weranga wrote:
> Hi,
>
> After running compaction tombstones get re
The row is the unit of replication, all values with the same storage engine row
key in a KS are on the same nodes. if they were per CF this would not hold.
Not that it would be the end of the world, but that is the first thing that
comes to mind.
Cheers
-
Aaron Morton
> Will that throttle the network traffic caused by nodetool repair?
yes.
> Should I call it to all the nodes on the cluster?
Or set it in the yaml file.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 25/0
mutations.
So if you have RS per CF you lose atomic commits for writes to the same row.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 28/01/2013, at 11:22 PM, Manu Zhang wrote:
> On Mon 28 Jan 2013 04:42:
ds keys that are outside of the
token range.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 28/01/2013, at 4:24 PM, Mike Sample wrote:
> Does the following FAQ entry hold even when the partion key is a
see if it's a bug.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 25/01/2013, at 5:35 PM, Gabriel Ciuloaica wrote:
> Hi Aaron,
>
> I'm using PropertyFileSnitch, an my cassandra-topology.propertis
If you are seeing failed secondary index reads you may be seeing this
https://issues.apache.org/jira/browse/CASSANDRA-5079
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 29/01/2013, at 3:31 AM, Matthias Zeilinger
commit log or snapshot etc) is waiting.
See the comments for memtable_flush_queue_size in the yaml file.
If you increase the value you will flush more frequently as C* leaves for
memory to handle the case where the queue is full.
If you have spare IO you could consider increasing memtable_fl
you using?
If you have the property file snitch do all nodes have the same configuration ?
There is a lot of sickness there. If possible I would scrub and start again.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 2
What is your table spec ?
Do you have the full stack trace from the exception ?
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 29/01/2013, at 8:15 AM, Andy Cobley wrote:
> I have the following code in my
ing multithreaded_compaction ?
Are you using Key Caches ? Have you tried disabling
compaction_preheat_key_cache?
Can you enabled DEBUG level logging and make them available ?
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.co
single CF.
This is the thing that is committed to the log, and then the changes in the
ColumnFamilies are applied to each CF in an isolated way.
> .(must have missed that several times in the
> documentation).
http://wiki.apache.org/cassandra/FAQ#batch_mutate_atomic
Cheers
-
sing QUOURM / QUOURM you maybe getting inconsistent results now.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 29/01/2013, at 9:51 AM, Daning Wang wrote:
> I add a new node to ring(version 1.1.6), after more than
inital_token startup param that
takes a comma separated list of tokens for the node.
There also appears to be support for the ordered partitions to generate random
tokens.
But you would still have the problem of having to balance your row keys around
the token space.
Cheers
-----
ot;B") returns "B" only
> cfq.getKey("foo").withColumnSlice("A","B","C") returns "A","B" and "C"
Can you replicate this using cassandra-cli or CQL ?
Makes it clearer what's happening and removes any potential is
ut not via the secondary index
( in your example) then the index is broken.
If you are on pre 1.1.9 try upgrading.
cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 29/01/2013, at 8:19 PM, Matthias Zeilinger
wrote:
> Ho
> * Will try it tomorrow. Do I need to restart server to change the log level?
You can set it via JMX, and supposedly log4j is configured to watch the config
file.
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On
in the
source distribution.
> his statement gives error and I am not able to figure out the replacement for
> it:
What is the error?
Cheers
-----
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 29/01/2013, at 9:37 PM, Te
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