Re: Adding New Nodes/Data Center to an existing Cluster.

gt; >>> 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_cluster_t.html >>> ?

Re: Adding New Nodes/Data Center to an existing Cluster.

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, > > > [image

Re: [MASSMAIL]Re: Error while adding a new node.

up to 2.1.5 >> (in the 2.1.x series) are not considered stable. >> >>Regards, >> >> Carlos Juzarte Rolo >> Cassandra Consultant >> >> Pythian - Love your data >> >> rolo@pythian | Twitter: cjrolo | Linkedin: >> *linkedin.com/in/car

Re: Error while adding a new node.

any help? On Thu, Jul 2, 2015 at 6:18 AM, Neha Trivedi 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

Re: Error while adding a new node.

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 wrote

Re: Error while adding a new node.

ed, Jul 1, 2015 at 8:08 PM, Neha Trivedi > 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,

Re: Error while adding a new node.

Also you can monitor the number of sstables. > > C*heers > > Alain > > 2015-07-01 11:53 GMT+02:00 Neha Trivedi : > >> Thanks I will checkout. >> I increased the ulimit to 10, but I am getting the same error, but >> after a while. >> regards >>

Re: Error while adding a new node.

assandra/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 : > >> Arun, >> I am logging on to Server as root and running (sudo service cassandra >> sta

Re: Error while adding a new node.

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 wrote: > Thanks Arun ! I will try and get back ! > > On Wed, Jul 1, 2015 at 10:32 AM, Arun wrote: > >> Looks like you have too man

Re: Error while adding a new node.

t; > > > On Jun 30, 2015, at 21:16, Neha Trivedi 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 while adding a new node.

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 to:

Data Modeling for 2.1 Cassandra

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 set, last_name set, dob set ); CREATE INDEX log_firstname_index ON test.log

Re: Best Practice to add a node in a Cluster

ct the old > nodes to forget data 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 > wrote: > >> Thans Arun ! >

Re: Best Practice to add a node in a Cluster

cause repair is an expensive > process (Utilizes high CPU). > > > > > On Mon, Apr 27, 2015 at 8:36 PM, Neha Trivedi > wrote: > >> Thanks Eric and Matt :) !! >> >> Yes the purpose is to improve reliability. >> Right now, from our driver we are querying

Re: Best Practice to add a node in a Cluster

an have one node offline and still be able to achieve quorum. > RF=3 is a common 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,

Best Practice to add a node in a Cluster

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

Re: COPY command to export a table to CSV file

> /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 > wrote: > >> hi, >> >> What is the count of records in th

Re: COPY command to export a table to CSV file

nology, >>> delivering Apache Cassandra to the world’s most innovative enterprises. >>> Datastax is built to be agile, always-on, and predictably scalable to any >>> size. With more than 500 customers in 45 countries, DataStax is the >>> database tec

Re: COPY command to export a table to CSV file

> 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 Trived

Re: COPY command to export a table to CSV file

20, 2015 at 11:13 AM, Kiran mk > 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. >> >&g

COPY command to export a table to CSV file

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 Thread[ReadStage:532074,5

Re: Fwd: ReadTimeoutException in Cassandra 2.0.11

larly if you end > up 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, > Ste

Re: Fwd: ReadTimeoutException in Cassandra 2.0.11

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 2.

Fwd: ReadTimeoutException in Cassandra 2.0.11

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

Re: Cassandra nodes in VirtualBox

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 wrote: > Hi, > > I did the Cassandra cluster set up as below: > > Nod

Re: Stable cassandra build for production usage

Use 2.0.11 for production On Wed, Dec 31, 2014 at 11:50 PM, Robert Coli wrote: > On Wed, Dec 31, 2014 at 8:38 AM, Ajay 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 the stable or popular >> build for

Re: Cassandra Maintenance Best practices

t streaming throughput on your existing nodes to a lower number like 50 > or 25. > > On Tue, Dec 16, 2014 at 11:10 AM, Neha Trivedi > wrote: >> >> Thanks Ryan. >> So, as Jonathan recommended, we should have RF=3 with Three nodes. >> So Quorum = 2 so, CL= 2 (or I

Re: Cassandra Maintenance Best practices

to be using that downgraded > policy most 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 > wrote: >> >&g

Re: Cassandra Maintenance Best practices

;re not using quorum, because on RF=2 > that's the same as CL=ALL. > > I 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 > wrote: > >> Hi, >> We have Two Nod

Re: Cassandra Maintenance Best practices

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 > wrote: > >> Hi, >> We have Two Node Cluster Configuration in production with RF=2. >> >> Which means that the data is written

Cassandra Maintenance Best practices

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

Re: Cassandra add a node and remove a node

Thanks Jens and Robert !!! On Wed, Dec 3, 2014 at 2:20 AM, Robert Coli wrote: > On Mon, Dec 1, 2014 at 7:10 PM, Neha Trivedi > wrote: > >> No the old node is not defective. We Just want to separate out that >> Server for testing. >> And add a new node. (Present clu

Re: Cassandra add a node and remove a node

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 wrote: > On Sun, Nov 30, 2014 at 10:15 PM, Neha Trivedi > wrote: > >> I need

Cassandra add a node and remove a node

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