If I were you, I would learn Cassandra's internals and how it works (there
are several Webinars that you can watch). Once you understand its
internals, then you'll be in a much better position to think of a feature
enhancement you can do.
You'll also be in a better position to do future Cassandra
hi sir..
I'm a m-tech student. my academic project is under cassandra. I have run
the source code of cassandra in eclipse juno using ant build.
https://github.com/apache/cassandra. i have to do some feature enhancement
in cassandra and i have analyze my application in cassandra. So please tell
me
You can try doing it from cassandra cli. Set consistency level to All and then
truncate.
Anuj Wadehra
Sent from Yahoo Mail on Android
From:Parth Setya setya.pa...@gmail.com
Date:Thu, 9 Apr, 2015 at 7:31 pm
Subject:Re: [Cassandra 2.0] truncate table
As per this thread
+1 Jens, and there is a specific mailing list for developers (
http://cassandra.apache.org/#lists).
But it looks like a great move, good luck Divya.
C*heers,
Alain
2015-04-09 12:44 GMT+02:00 Jens Rantil jens.ran...@tink.se:
Divya,
Please start a new thread for that. Or is your question
Try this loader if cqlsh doesn't cut your needs --
https://github.com/brianmhess/cassandra-loader
All the best,
[image: datastax_logo.png] http://www.datastax.com/
Sebastián Estévez
Solutions Architect | 954 905 8615 | sebastian.este...@datastax.com
[image: linkedin.png]
Hi Divya.
There is a SubQuery implementation available, in Git repository . You can do
some enhancement to make it to be useful for production.
https://github.com/jobmthomas/Cassandra-SubQuery
Divya,
Please start a new thread for that. Or is your question related
specifically to this thread?
Thanks,
Jens
On Thu, Apr 9, 2015 at 11:34 AM, Divya Divs divya.divi2...@gmail.com
wrote:
hi sir..
I'm a m-tech student. my academic project is under cassandra. I have run
the source code of
Thank you very much Alain.
On Thu, Apr 9, 2015 at 8:50 PM, Alain RODRIGUEZ arodr...@gmail.com wrote:
+1 Jens, and there is a specific mailing list for developers (
http://cassandra.apache.org/#lists).
But it looks like a great move, good luck Divya.
C*heers,
Alain
2015-04-09 12:44
Yes, with Nodetool clearsnapshot we recovery 90gb aprox.
Thanks!
El abr 9, 2015 11:44 AM, Laing, Michael michael.la...@nytimes.com
escribió:
rtfm - trncate creates snapshots by default, they must be cleared on all
nodes to recover *disk space *as requested by the OP.
On Thu, Apr 9, 2015 at
As per this thread
http://stackoverflow.com/questions/10520110/how-do-i-delete-all-data-in-a-cassandra-column-family
What you can do to physically remove the files is to go to
/var/lib/cassandra/data/keyspace_name and then manually delete the
directory with the name of that column family. Do
hi sir..
I'm a m-tech student. my academic project is under cassandra. I have run
the source code of cassandra in eclipse juno using ant build.
https://github.com/apache/cassandra. i have to do some feature enhancement
in cassandra and i have analyze my application in cassandra. So please tell
me
Hi Jack,
it seems there is a some misunderstanding. There are two things. One is
that the Cassandra works for application, which may (and should) be true
even if some of the nodes are actually down. The other thing is that
even in this case you want to be notified that there are faulty
Cassandra
Hi Guys, I truncated a column family that has a size of 31 gb, and the disk
space was not released
what else do i have to do?
Regards
Eduardo
Hi Divya.
There is a SubQuery implementation available, in Git repository . You can do
some more enhancement to make it to be useful for production.
https://github.com/jobmthomas/Cassandra-SubQuery
From: Divya Divs divya.divi2...@gmail.com
Sent: Thursday, April
I understand the reason, but If I user OrderPreservingPartitioner and have
compound partition key, can I use select using only FIRST component of
compound partition key?
2015-04-08 20:43 GMT+02:00 Robert Coli rc...@eventbrite.com:
On Wed, Apr 8, 2015 at 1:27 AM, Serega Sheypak
Hello,
We have only on CF as
CREATE TABLE t1(id bigint, ts timestamp, definition text, primary key (id,
ts))
with clustering order by (ts desc) and gc_grace_seconds=0
and compaction = {'class': 'DateTieredCompactionStrategy',
'timestamp_resolution':'SECONDS', 'base_time_seconds':'20',
rtfm - trncate creates snapshots by default, they must be cleared on all
nodes to recover *disk space *as requested by the OP.
On Thu, Apr 9, 2015 at 10:17 AM, Anuj Wadehra anujw_2...@yahoo.co.in
wrote:
You can try doing it from cassandra cli. Set consistency level to All and
then truncate.
I guess this give a good idea of when to use one or the other (STCS / LCS),
did not hear of DTCS so far...
http://www.datastax.com/dev/blog/when-to-use-leveled-compaction
C*heers,
Alain
2015-04-09 7:09 GMT+02:00 Ajay ajay.ga...@gmail.com:
Hi,
What are the guidelines on when to use
Hi,
At https://github.com/datastax/spark-cassandra-connector I see that you
are extending API that Spark provides for interacting with RDDs to
leverage some native Cassandra features. We are using Apache Cassandra
together with PySpark to do some analytics and since we have community
I do two types of node monitoring. On each host, we have a process monitor
looking for the cassandra process. If it goes down, it will get restarted (if a
flag is set appropriately).
Secondly, from a remote host, I have an hourly check of all nodes where I
essentially log in to each node and
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