Unfortunately, we don't have published any benchmarks yet, but we have
plans to do it as soon as possible. However, you can expect a similar
behavior as those of Elasticsearch or Solr, with some overhead due to the
need for indexing both the Cassandra's row key and the partition's token.
You can
Hi,
I have one node in my 5-node cluster that effectively owns 100% and it
looks like my cluster is rather imbalanced. Is it common to have it this
imbalanced for 4-5 nodes?
My current output for a keyspace is:
$ nodetool status myks
Datacenter: Cassandra
=
Status=Up/Down
|/
Your data model also contributes to the balance (or lack of) of the
cluster. If you have a really bad data partitioning Cassandra will not do
any magic.
Regarding that cluster, I would decommission the x.52 node and add it again
with the correct configuration. After the bootstrap, run a cleanup.
Hi,
Let's say I have an existing cluster and do the following:
1. I start a new joining node (A). It enters state Up/Joining.
Streaming automatically start to this node.
2. I wait two minutes (best practise for bootstrapping).
3. I start a second node (B) to join the cluster. It
Hi Carlos,
Yes, I should have been more specific about that; basically all my primary
ID:s are random UUIDs so I find that very hard to believe that my data
model should be the problem here. I will run a full repair of the cluster,
execute a cleanup and recommission the node, then.
Thanks,
Jens
Seems like an interesting tool!
What operational recommendations would you make to users of this tool
(Extra hardware capacity, extra metrics to monitor, etc)?
Regards,
Carlos Juzarte Rolo
Cassandra Consultant
Pythian - Love your data
rolo@pythian | Twitter: cjrolo | Linkedin:
Similarly, should we send multiple SELECT requests or a single one with a
SELECT...IN ?
On Wednesday, June 10, 2015 11:27 AM, Sotirios Delimanolis
sotodel...@yahoo.com wrote:
Will this eventually they will all go through behavior apply to the IN? How
is this query written to the
Multiple async requests. IN() is a performance nightmare unless you're
querying against a single partition key.
On Fri, Jun 12, 2015 at 1:09 PM Sotirios Delimanolis sotodel...@yahoo.com
wrote:
Similarly, should we send multiple SELECT requests or a single one with a
SELECT...IN ?
On
On Fri, Jun 12, 2015 at 5:21 AM, Jens Rantil jens.ran...@tink.se wrote:
Let's say I have an existing cluster and do the following:
1. I start a new joining node (A). It enters state Up/Joining.
Streaming automatically start to this node.
2. I wait two minutes (best practise for
I am preparing to migrate a large amount of data to Cassandra. In order to test
my migration code, I’ve been doing some dry runs to a test cluster. My test
cluster is 2.0.15, 3 nodes, RF=1 and CL=QUORUM. I know RF=1 and CL=QUORUM is a
weird combination, but my production cluster that will
On Thu, Jun 11, 2015 at 6:56 PM, Mohammed Guller moham...@glassbeam.com
wrote:
By that logic, 2.1.0 should have been somewhat as stable as 2.0.10 (the
last release of 2.0.x branch before 2.1.0). However, we found out that it
took almost 9 months for 2.1.x series to become stable and suitable
I meant to say I’m *not* overloading my cluster.
On Jun 12, 2015, at 6:52 PM, Robert Wille rwi...@fold3.com wrote:
I am preparing to migrate a large amount of data to Cassandra. In order to
test my migration code, I’ve been doing some dry runs to a test cluster. My
test cluster is 2.0.15, 3
The plugin looks cool. Thank you for open sourcing it.
Does it support faceting and other Solr functionality?
Mohammed
From: Andres de la Peña [mailto:adelap...@stratio.com]
Sent: Friday, June 12, 2015 3:43 AM
To: user@cassandra.apache.org
Subject: Re: Lucene index plugin for Apache Cassandra
I really appreciate your interest
Well, the first recommendation is to not use it unless you need it, because
a properly Cassandra denormalized model is almost always preferable to
indexing. Lucene indexing is a good option when there is no viable
denormalization alternative. This is the case of
I will note here that the limitations on ad-hoc querying (and aggregates) make
it much more difficult to deal with data quality problems, QA testing, and
similar efforts, especially where people are used to a more relational, ad-hoc
model. We have often had to extract data from Cassandra to
No dispute about that. But the main design requirement Cassandra strives to
meet is to be a blazing fast transactional database - here's the key, give
me the data, and here's the key, write this data. Any additional query
requirements are a distant second at best. A big part of that transactional
My dse-spark app goes well with spark-submit, BUT GOT STUCK while executing by
sbt run or java jar run on my windows pc which means the driver process is in a
pc other than a dse cluster node. And what frustrating me is that when I looked
through the logs, I see no error, but it just hang
Hello,
We recently upgraded a cluster from 2.0.12 to 2.0.15 and now whenever we
stop/kill a cassandra process, some other nodes keep a connection with the
dead node in the CLOSE_WAIT state on port 7000 for about 5-20 minutes.
So, if I start the killed node again, it cannot handshake with the
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