Hi,
I need to Add new Node and remove existing node.
Should I first remove the node and then add a new node or Add new node and
then remove existing node.
Which practice is better and things I need to take care?
regards
Neha
No the old node is not defective. We Just want to separate out that Server
for testing.
And add a new node. (Present cluster has two Nodes and RF=2)
thanks
On Tue, Dec 2, 2014 at 12:04 AM, Robert Coli rc...@eventbrite.com wrote:
On Sun, Nov 30, 2014 at 10:15 PM, Neha Trivedi nehajtriv
Thanks Jens and Robert !!!
On Wed, Dec 3, 2014 at 2:20 AM, Robert Coli rc...@eventbrite.com wrote:
On Mon, Dec 1, 2014 at 7:10 PM, Neha Trivedi nehajtriv...@gmail.com
wrote:
No the old node is not defective. We Just want to separate out that
Server for testing.
And add a new node. (Present
Hi,
We have Two Node Cluster Configuration in production with RF=2.
Which means that the data is written in both the clusters and it's running
for about a month now and has good amount of data.
Questions?
1. What are the best practices for maintenance?
2. Is OPScenter required to be installed or
at 7:19:32 PM Neha Trivedi nehajtriv...@gmail.com
wrote:
Hi,
We have Two Node Cluster Configuration in production with RF=2.
Which means that the data is written in both the clusters and it's
running for about a month now and has good amount of data.
Questions?
1. What are the best
recommend at least RF=3 because if you lose 1 server, you're on the edge
of data loss.
On Tue Dec 09 2014 at 7:19:32 PM Neha Trivedi nehajtriv...@gmail.com
wrote:
Hi,
We have Two Node Cluster Configuration in production with RF=2.
Which means that the data is written in both the clusters
of the time under server stress, so in practice that reduced
consistency is the effective consistency I'm asking for from my writes and
reads.
On Tue, Dec 16, 2014 at 10:50 AM, Neha Trivedi nehajtriv...@gmail.com
wrote:
Hi Jonathan,QUORUM = (sum_of_replication_factors / 2) + 1, For us
existing nodes to a lower number like 50
or 25.
On Tue, Dec 16, 2014 at 11:10 AM, Neha Trivedi nehajtriv...@gmail.com
wrote:
Thanks Ryan.
So, as Jonathan recommended, we should have RF=3 with Three nodes.
So Quorum = 2 so, CL= 2 (or I need the CL to be set to two) and I will
not need
Use 2.0.11 for production
On Wed, Dec 31, 2014 at 11:50 PM, Robert Coli rc...@eventbrite.com wrote:
On Wed, Dec 31, 2014 at 8:38 AM, Ajay ajay.ga...@gmail.com wrote:
For my research and learning I am using Cassandra 2.1.2. But I see couple
of mail threads going on issues in 2.1.2. So what is
Hello All,
I am trying to process 200MB file. I am getting following Error. We are
using (apache-cassandra-2.0.3.jar)
com.datastax.driver.core.
exceptions.ReadTimeoutException: Cassandra timeout during read query at
consistency ONE (1 responses were required but only 0 replica responded)
1. Is it
Hello Everyone,
Thanks very much for the input.
Here is my System info.
1. I have single node cluster. (For testing)
2. I have 4GB Memory on the Server and trying to process 200B. ( 1GB is
allocated to Tomcat7, 1 GB to Cassandra and 1 GB to ActiveMQ. Also nltk
Server is running)
3. We are using
enough memory that virtual memory on the host becomes a factor.
There's a lot of good information on both the Apache Cassandra site and on
Planet Cassandra about performance and tuning if you want to know more.
Hope that helps,
Steve
On Thu, Jan 22, 2015 at 7:28 PM, Neha Trivedi nehajtriv
Hi Ajay,
1. you should have at least 2 Seed nodes as it will help, Node1 (only one
seed node) is down.
2. Check you should be using internal ip address in listen_address and
rpc_address.
On Mon, Jan 5, 2015 at 2:07 PM, Ajay ajay.ga...@gmail.com wrote:
Hi,
I did the Cassandra cluster set up
technology and transactional backbone of choice for the worlds
most innovative companies such as Netflix, Adobe, Intuit, and eBay.
On Mon, Apr 20, 2015 at 12:31 PM, Neha Trivedi nehajtriv...@gmail.com
wrote:
Does the nproc,nofile,memlock settings in
/etc/security/limits.d/cassandra.conf are set
in
/etc/security/limits.d/cassandra.conf are set to optimum value ?
What is the consistency level ?
Best Regardds,
Kiran.M.K.
On Mon, Apr 20, 2015 at 11:55 AM, Neha Trivedi nehajtriv...@gmail.com
wrote:
hi,
What is the count of records in the column-family ?
We have about 38,000
...@gmail.com wrote:
Hi,
Thanks for the info,
Does the nproc,nofile,memlock settings in
/etc/security/limits.d/cassandra.conf are set to optimum value ?
What is the consistency level ?
Best Regardds,
Kiran.M.K.
On Mon, Apr 20, 2015 at 11:55 AM, Neha Trivedi nehajtriv...@gmail.com
wrote:
hi
Hello all,
We are getting the OutOfMemoryError on one of the Node and the Node is
down, when we run the export command to get all the data from a table.
Regards
Neha
ERROR [ReadStage:532074] 2015-04-09 01:04:00,603 CassandraDaemon.java (line
199) Exception in thread
coolkiran2...@gmail.com
wrote:
Seems like the is related to JAVA HEAP Memory.
What is the count of records in the column-family ?
What is the Cassandra Version ?
Best Regards,
Kiran.M.K.
On Mon, Apr 20, 2015 at 11:08 AM, Neha Trivedi nehajtriv...@gmail.com
wrote:
Hello all,
We
for which they are no longer responsible). The data
responsibility hasn't changed for any node, all nodes are still responsible
for all data.
On Mon, Apr 27, 2015 at 9:19 PM, Neha Trivedi nehajtriv...@gmail.com
wrote:
Thans Arun !
On Tue, Apr 28, 2015 at 9:44 AM, arun sirimalla arunsi
Helle all,
I was wondering which data model of the Three describe below better in
terms of performance. Seems 3 is good.
*#1. log with 3 Index*
CREATE TABLE log (
id int PRIMARY KEY,
first_name settext,
last_name settext,
dob set text
);
CREATE INDEX
replication factor because of this characteristic.
Make sure your new node is not in its own seeds list, or it will not
bootstrap (it will come online immediately and start serving requests).
On Mon, Apr 27, 2015 at 8:46 AM, Neha Trivedi nehajtriv...@gmail.com
wrote:
Hi
We have a 2 Cluster
repair is an expensive
process (Utilizes high CPU).
On Mon, Apr 27, 2015 at 8:36 PM, Neha Trivedi nehajtriv...@gmail.com
wrote:
Thanks Eric and Matt :) !!
Yes the purpose is to improve reliability.
Right now, from our driver we are querying using degradePolicy for
reliability
Hi
We have a 2 Cluster Node with RF=2. We are planing to add a new node.
Should we change RF to 3 in the schema?
OR Just added a new node with the same RF=2?
Any other Best Practice that we need to take care?
Thanks
regards
Neha
?
On Wed, Jul 1, 2015 at 8:08 PM, Neha Trivedi nehajtriv...@gmail.com
wrote:
Hey..
nodetool compactionstats
pending tasks: 0
no pending tasks.
Dont have opscenter. how do I monitor sstables?
On Wed, Jul 1, 2015 at 4:28 PM, Alain RODRIGUEZ arodr...@gmail.com
wrote:
You also might want
).
Also you can monitor the number of sstables.
C*heers
Alain
2015-07-01 11:53 GMT+02:00 Neha Trivedi nehajtriv...@gmail.com:
Thanks I will checkout.
I increased the ulimit to 10, but I am getting the same error, but
after a while.
regards
Neha
On Wed, Jul 1, 2015 at 2:22 PM, Alain
/cassandra/2.0/cassandra/install/installRecommendSettings.html#reference_ds_sxl_gf3_2k__user-resource-limits
C*heers,
Alain
2015-07-01 7:33 GMT+02:00 Neha Trivedi nehajtriv...@gmail.com:
Arun,
I am logging on to Server as root and running (sudo service cassandra
start)
regards
Neha
On Wed
.
On Jun 30, 2015, at 21:16, Neha Trivedi nehajtriv...@gmail.com wrote:
Hello,
I have a 4 node cluster with SimpleSnitch.
Cassandra : Cassandra 2.1.3
I am trying to add a new node (cassandra 2.1.7) and I get the following
error.
ERROR [STREAM-IN-] 2015-06-30 05:13:48,516
any help?
On Thu, Jul 2, 2015 at 6:18 AM, Neha Trivedi nehajtriv...@gmail.com wrote:
also:
root@cas03:~# sudo service cassandra start
root@cas03:~# lsof -n | grep java | wc -l
5315
root@cas03:~# lsof -n | grep java | wc -l
977317
root@cas03:~# lsof -n | grep java | wc -l
880240
root
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www.pythian.com
On Thu, Jul 2, 2015 at 11:40 AM, Neha Trivedi nehajtriv...@gmail.com
wrote:
any help?
On Thu, Jul 2
Hello,
I have a 4 node cluster with SimpleSnitch.
Cassandra : Cassandra 2.1.3
I am trying to add a new node (cassandra 2.1.7) and I get the following
error.
ERROR [STREAM-IN-] 2015-06-30 05:13:48,516 JVMStabilityInspector.java:94 -
JVM state determined to be unstable. Exiting forcefully due
Arun,
I am logging on to Server as root and running (sudo service cassandra start)
regards
Neha
On Wed, Jul 1, 2015 at 11:00 AM, Neha Trivedi nehajtriv...@gmail.com
wrote:
Thanks Arun ! I will try and get back !
On Wed, Jul 1, 2015 at 10:32 AM, Arun arunsi...@gmail.com wrote:
Looks like
also:
root@cas03:~# sudo service cassandra start
root@cas03:~# lsof -n | grep java | wc -l
5315
root@cas03:~# lsof -n | grep java | wc -l
977317
root@cas03:~# lsof -n | grep java | wc -l
880240
root@cas03:~# lsof -n | grep java | wc -l
882402
On Wed, Jul 1, 2015 at 6:31 PM, Neha Trivedi
Hi,
Can you specify which version of Cassandra you are using?
Can you provide the Error Stack ?
regards
Neha
On Tue, Sep 1, 2015 at 2:56 AM, Sebastian Estevez <
sebastian.este...@datastax.com> wrote:
> or https://issues.apache.org/jira/browse/CASSANDRA-8611 perhaps
>
> All the best,
>
>
>
>>> Hi Sachin,
>>>
>>> You are speaking about a repair, when the proper command to do this is
>>> "rebuild" ?
>>>
>>> Did you tried adding your DC this way:
>>> http://docs.datastax.com/en/cassandra/2.1/cassandra/operations/ops_add_dc_to_clust
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