Cassandra Replication Factor change from 2 to 3 for each data center

This is just basic question to ask..but it is worth to ask. We changed Replication factor from 2 to 3 in our production cluster. We have 2 data centers. Does nodetool repair -dcpar from single node in one data center is sufficient for the whole replication to take effect? Please confirm. Do I

Any Cassandra Backup and Restore tool like Cassandra Reaper?

Any Cassandra Backup and Restore tool like Cassandra Reaper for Repairs? [http://wwwin.cisco.com/c/dam/cec/organizations/gmcc/services-tools/signaturetool/images/logo/logo_gradient.png] Harika Vangapelli Engineer - IT hvang...@cisco.com Tel: Cisco Systems, Inc. Un

Datastax pricing

We want to consider the enterprise datastax solution. currently we are using opensource solution. What would be the pricin per node? [http://wwwin.cisco.com/c/dam/cec/organizations/gmcc/services-tools/signaturetool/images/logo/logo_gradient.png] Harika Vangapelli Engineer - IT hvang...@cisco.c

RE: Best JMX Monitor to graphite ?

We are using collectd-fast-jmx [http://wwwin.cisco.com/c/dam/cec/organizations/gmcc/services-tools/signaturetool/images/logo/logo_gradient.png] Harika Vangapelli Engineer - IT hvang...@cisco.com Tel: Cisco Systems, Inc. United States cisco.com [http://www.cisco.

RE: Reaper 1.0

9:14 AM, Harika Vangapelli -T (hvangape - AKRAYA INC at Cisco) mailto:hvang...@cisco.com>> wrote: Open source, free to use in production? Any License constraints, Please let me know. I experimented with it yesterday, really liked it. Harika Vangapelli Engineer - IT hvang...@cisco.com<

RE: Reaper 1.0

Open source, free to use in production? Any License constraints, Please let me know. I experimented with it yesterday, really liked it. [http://wwwin.cisco.com/c/dam/cec/organizations/gmcc/services-tools/signaturetool/images/logo/logo_gradient.png] Harika Vangapelli Engineer - IT hvang...@cis

RE: Stable Cassandra 3.x version for production

We are using version 3.7 in prod. [http://wwwin.cisco.com/c/dam/cec/organizations/gmcc/services-tools/signaturetool/images/logo/logo_gradient.png] Harika Vangapelli Engineer - IT hvang...@cisco.com Tel: Cisco Systems, Inc. United States cisco.com [http://www.cis

Spark aggregation jobs throwing Exceptions

We are using Spark-cassandra-connector to connect to Cassandra for aggregation jobs for writes with batch size of 1000. We are seeing exception as All host(s) tried for query failed (tried: 00.00.00.00:9042 (com.datastax.driver.core.exceptions.DriverException: Timeout while trying to acquire ava

RE: server connection in authenticator

Horia, By just changing Authenticator and Authorizer in cassandra.yaml and adding custom libraries in /usr/share/cassandra/ you can plugin to custom authentication sed -ri \ -e 's/^(authenticator:).*/\1 'com.cassandra.LdapCassandraAuthenticator'/' \ -e 's/^(autho

Calculate tokens from date range

We have data in tables with partitioning key as 'Timestamp' and we are in need of running repairs for last 3 months data because full repair is taking lot of time. We are migrating data from Cassandra version 2 to 3. Please guide us with your best suggestions. Thanks [http://wwwin.cisco.com/c/

RE: Rebalance a cassandra cluster

Check with nodetool repair. [http://wwwin.cisco.com/c/dam/cec/organizations/gmcc/services-tools/signaturetool/images/logo/logo_gradient.png] Harika Vangapelli Engineer - IT hvang...@cisco.com Tel: Cisco Systems, Inc. United States cisco.com [http://www.cisco.com

Historical data movement to other cluster

Is there a way to move past 3 months data from one cassandra cluster to other cluster? Thanks, Harika [http://wwwin.cisco.com/c/dam/cec/organizations/gmcc/services-tools/signaturetool/images/logo/logo_gradient.png] Harika Vangapelli Engineer - IT hvang...@cisco.com T

RE: Cassandra Data migration from 2.2.3 to 3.7

that cluster and stream them into the new cluster -- Jeff Jirsa On Aug 1, 2017, at 3:30 PM, Harika Vangapelli -T (hvangape - AKRAYA INC at Cisco) mailto:hvang...@cisco.com>> wrote: Jeff, Thanks for initial pointer. I want to add some more information to it. This is to migrate from one clu

RE: Cassandra Data migration from 2.2.3 to 3.7

k load - create a minimal cluster, load the sstables in, and run upgradesstables to rev the version and then stop that cluster and stream them into the new cluster -- Jeff Jirsa On Aug 1, 2017, at 3:30 PM, Harika Vangapelli -T (hvangape - AKRAYA INC at Cisco) mailto:hvang...@cisco.com>>

RE: Cassandra Data migration from 2.2.3 to 3.7

0.14 if you don't need features from 3.7 ). The one exception to this would be if you're using a 3.7 lts branch (like instaclustr had at one point - and may still have). -- Jeff Jirsa On Aug 1, 2017, at 2:24 PM, Harika Vangapelli -T (hvangape - AKRAYA INC at Cisco) mailto:hvang..

Cassandra Data migration from 2.2.3 to 3.7

Please help me understand data migration path from 2.2.3 to 3.7. 1. Tried to take snapshot and load the snapshot using sstableloader; but it is throwing Streaming Exception. Please advise. Thanks, Harika [http://wwwin.cisco.com/c/dam/cec/organizations/gmcc/services-tools/signaturetool/i

Cassandra Node keep going down

We are using Cassandra 3.x version.. Recently, our production database is going through some instability issues. One of our node is keep going down from every 2 days up to a few of times a day. The node is down due to JVM out of memory. According to my investigation, I suspect that this might b

Question on configuring Apache Cassandra with LDAP

I am trying to configure Cassnadra with LDAP , and I am trying to write code and want to extend the functionality of org.apache.cassandra.auth.PasswordAuthenticator and override authenticate method but As PlainTextSaslAuthenticator innerclass has a private scope not able to use method overridin