Hello Yatong
"If I restart the node or using 'cleanup', it will resume to normal." -->
what does df -hl shows for /data6 when you restart or cleanup the node ?
By the way, a single SSTable of 3.6Tb is kind of huge. Do you perform
manual repair frequently ?
On Sun, May 4, 2014 at 1:51 AM, Yat
Hi there,
I am updating compaction strategy from 'sized tiered' to 'leveled' and from
http://www.datastax.com/dev/blog/leveled-compaction-in-apache-cassandra it
is said:
When updating an existing column family, reads and writes can continue as
> usual while leveling of existing sstables is perfor
Utkarsh,
Thanks! I think I'll try it!
Tim
On Sat, May 3, 2014 at 5:18 PM, Utkarsh Sengar wrote:
> I have also written a prototype ES-Cassandra river:
> https://github.com/eBay/cassandra-river
> Never tested it in prod, might need improvements.
>
> Thanks,
> -Utkarsh
>
>
> On Sat, May 3, 2014 a
My Cassandra cluster has plenty of free space, for now only about 30% of
space are used
On Sun, May 4, 2014 at 6:36 AM, Yatong Zhang wrote:
> Hi there,
>
> It was strange that the 'xxx-tmp-xxx.db' file kept increasing until
> Cassandra throw exceptions with 'No space left on device'. I am using
Hi there,
It was strange that the 'xxx-tmp-xxx.db' file kept increasing until
Cassandra throw exceptions with 'No space left on device'. I am using CQL 3
to create a table to store data about 200K ~ 500K per record. I have 6
harddisks per node and cassandra was configured with 6 data
directories(e
I have also written a prototype ES-Cassandra river:
https://github.com/eBay/cassandra-river
Never tested it in prod, might need improvements.
Thanks,
-Utkarsh
On Sat, May 3, 2014 at 1:37 PM, Tim Dunphy wrote:
> I'd like to try your ElasticSearch / Cassandra driver as well. Could you
> post a l
I'd like to try your ElasticSearch / Cassandra driver as well. Could you post a
link? Is it on GitHub or similar?
Thanks
Tim
Sent from my iPhone
> On May 3, 2014, at 4:06 PM, prabhat wrote:
>
> Great idea. I can do test
>
> Prabhat Kumar Singh
>
>
>
>> On Sun, May 4, 2014 at 12:32 AM, Eli
Great idea. I can do test
Prabhat Kumar Singh
On Sun, May 4, 2014 at 12:32 AM, Elias Ross wrote:
> I've come up with a driver so that Elasticsearch can store its index
> data in Cassandra. I'm not sure how well it performs, as I haven't
> really put it through any big data sets. But you then
I've come up with a driver so that Elasticsearch can store its index
data in Cassandra. I'm not sure how well it performs, as I haven't
really put it through any big data sets. But you then get the
advantage of data durability in Cassandra and the search capability of
Elasticsearch.
It's very expe
DataStax Enterprise integrates Cassandra and Apache Solr, with Solr as a
secondary index so that the Solr query index can be kept in sync with the
Cassandra data automatically and even fully reindexed if your index mapping
changes, as a single request. So, C* provides the fully distributed, dura
Agreed w/ ES not being the durable data store. I would recommend treating it
as ephemeral, and using Cassandra as your source of truth. Keep in mind if you
change your ES index mapping, you’ll require a full reindex in order to search
the data properly. It’s not like adding a secondary index
Hello Tim
You're absolutely right about ES for the query part. This is the perfect
fit for complex queries. Now regarding your question:
"What advantages does Cassandra give me over ES?" --> linear scalability &
durability. ES is just a super index cluster. I've talked to ES guys. If
they do not
Hey all.
I have been trying out some data stores for time series data and Cassandra
was the first on my list because so many people are using it for the same
purpose. I have read many articles on how to model my time series data and
tried several variations of schemas which I thought made sense f
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