Hello,
I wonder if it's possible to get statistics for a keyspace like its
size, size of each column family it contains. It's something I'd like
from a request...
Thanks very much for your help.
Thierry
Hello,
I find the compaction of my secondary index takes a long time and occupy a
lot of CPU.
INFO [CompactionExecutor:8] 2012-07-16 12:03:16,408 CompactionTask.java
(line 213) Compacted to [XXX]. 71,018,346 to 9,020 (~0% of original) bytes
for 3 keys at 0.22MB/s. Time: 397,602ms.
The
Hello Aaron,
I try to simulate a composition relationship within a single column
family / table (for example, an entity and its fields). I dynamically
add columns the contained elements.
Let's take an example. Here is my table definition with CQL 3:
CREATE TABLE Entity (
id varchar,
The write path for counters is different than non counter fields, for
background
http://www.datastax.com/wp-content/uploads/2011/07/cassandra_sf_counters.pdf
The write is applied on the leader *and then* replicated to the other replicas.
This was controlled by a config setting called
Is the above understanding correct ?
yes, sorry.
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 13/07/2012, at 4:24 PM, prasenjit mukherjee wrote:
On Fri, Jul 13, 2012 at 4:04 AM, aaron morton aa...@thelastpickle.com wrote:
The logic
Check net stats a few times to look for progress, if there is none take a look
at the logs on both sides for errors.
Hope that helps.
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 14/07/2012, at 10:53 PM, Michael Cherkasov wrote:
Hi all,
I found this error:
ERROR [Streaming to /192.168.36.25:10] 2012-07-16 16:26:25,206
AbstractCassandraDaemon.java (line 134) Exception in thread
Thread[Streaming to /192.168.36.25:10,5,main]
java.lang.IllegalStateException: target reports current file is
Hi
I'm using Cassandra 1.1.0 from Datastax and attempting to load a
ColumnFamily with a single column with a Composite name. It seems to load
ok, but is much slower than similar code without the composite column.
I tried building the Composite outside the while loop and just copying it
before
On 16 July 2012 11:25, aaron morton aa...@thelastpickle.com wrote:
In the before time someone had problems with a switch/router that was
dropping persistent but idle connections. Doubt this applies, and it would
probably result in an error, just throwing it out there.
Yes, been through them
Hi,
I have created snapshot with following command;
#./nodetool -h localhost snapshot cassandra_01_bkup
but the problem is, the snapshot is created on snapshot folder with
different name (like 1342269988711) and I have no idea that if I used
this command in script then how I gzip snapshot
I had ran into the same problem before:
http://comments.gmane.org/gmane.comp.db.cassandra.user/25334
I have not fond any solutions yet.
Bill
On Mon, Jul 16, 2012 at 11:10 AM, Bart Swedrowski b...@timedout.org wrote:
On 16 July 2012 11:25, aaron morton aa...@thelastpickle.com wrote:
In
I am having an issue where one node of a 2 node cluster seems to be using
much more I/O than the other node. the cassandra read/write requests seem
to be balanced, but iostat shows the data disk to be maxed at 100%
utilization for one machine and 50% for the other. r/s to be about 3x
greater on
i'm doing an upgrade of Cassandra 0.7 to 1.0 at the moment, and as part
of the preparation i'm upgrading to 1.0 client libraries (we use Hector
1.0-5) prior to upgrading the cluster itself. I'm seeing some of our
integration tests against the dev 0.7 cluster fail as they get
Are you able to put together a test case, maybe using the stress testing tool,
that models your data layout?
If so can you add it to https://issues.apache.org/jira/browse/CASSANDRA-3592
Thanks
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On
DC located in different environments one on Win7 other on Linux.
Running different operating systems is not supported.
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 17/07/2012, at 12:30 AM, Michael Cherkasov wrote:
I found this
#./nodetool -h localhost snapshot cassandra_01_bkup
tells cassandra to snapshot the keyspace called cassandra_01_bkup
To specify a name for the snapshot us the -t option
snapshot [keyspaces...] -t [snapshotName] - Take a snapshot of the specified
keyspaces using optional name snapshotName
Even if it is a network error it would be good to detect it.
If you can run a small repair with those log settings I'll can take a look at
the logs if you want. Cannot promise anything but another set of eyes may help.
Ping me off list if you want to send me the logs.
Cheers
Is you client balancing between the two nodes ? Heavy writes at CL ONE could
result in nodes dropping messages and having an unbalanced load.
Are you sure there is nothing else running on the machines ?
Just for fun have you turned off GC logging to see the impact ?
Is there swapping going on
UnavailableException is a server side error, whats the full error message ?
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 17/07/2012, at 5:31 AM, Guy Incognito wrote:
i'm doing an upgrade of Cassandra 0.7 to 1.0 at the moment, and as
This may not be directly related to the upgrade to 1.1.2, but I was running on
1.1.0 for a while with no issues, and I did the upgrade to 1.1.2 a few days ago.
2 of my nodes started throwing lots of promote exceptions, and then a lot of
the beforeAppend exceptions from then on every few
See https://issues.apache.org/jira/browse/CASSANDRA-4411
The bug is related to LCS (leveled compaction) and has been fixed.
On 16.07.2012, at 20:32, Bryce Godfrey wrote:
This may not be directly related to the upgrade to 1.1.2, but I was running
on 1.1.0 for a while with no issues, and
Thanks, is there a way around this for now or should I fall back to 1.1.0?
From: Rudolf van der Leeden [mailto:rudolf.vanderlee...@scoreloop.com]
Sent: Monday, July 16, 2012 12:55 PM
To: user@cassandra.apache.org
Cc: Rudolf van der Leeden
Subject: Re: 2 nodes throwing exceptions trying to
sorry i don't have the exact text right now but it's along the lines of
'not enough replicas available to handle the requested consistency
level'. i'm requesting quorum but i've tried with one, and any and it
made no difference.
On 16/07/2012 19:30, aaron morton wrote:
UnavailableException
I am doing Cassandra Benchmarking using YCSB for evaluating the best
performance for my application which will be both read and write intensive.
I have set up a three cluster environment on EC2 and i am using YCSB in the
same availability region as a client. I have tried various combinations of
Stay with 1.1.2 and create your CF with
compaction_strategy_class='SizeTieredCompactionStrategy'
On 16.07.2012, at 22:17, Bryce Godfrey wrote:
Thanks, is there a way around this for now or should I fall back to 1.1.0?
From: Rudolf van der Leeden
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