[
https://issues.apache.org/jira/browse/CASSANDRA-14265?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16382020#comment-16382020
]
Kenneth Brotman commented on CASSANDRA-14265:
---------------------------------------------
>From DataStax at
>[https://docs.datastax.com/en/dse/5.1/dse-admin/datastax_enterprise/config/configVnodesProduction.html]
h1. Enabling virtual nodes on an existing production cluster
You cannot directly convert a single-token nodes to a vnode. However, you can
configure another datacenter configured with vnodes already enabled and allow
automatic distribution to the existing data into the new nodes. This method has
the least impact on performance.
h2. Procedure
# [Add a new datacenter to the
cluster|https://docs.datastax.com/en/dse/5.1/dse-admin/datastax_enterprise/operations/opsAddDCToCluster.html].
# Once the new datacenter with vnodes enabled is up, switch your clients to
use the new datacenter.
# Run a full repair with [nodetool
repair|https://docs.datastax.com/en/dse/5.1/dse-admin/datastax_enterprise/tools/nodetool/toolsRepair.html].
This step ensures that after you move the client to the new datacenter that any
previous writes are added to the new datacenter and that nothing else, such as
hints, is dropped when you remove the old datacenter.
# Update your schema to no longer reference the old datacenter.
# Remove the old datacenter from the cluster.
See [Decommissioning a
datacenter|https://docs.datastax.com/en/dse/5.1/dse-admin/datastax_enterprise/operations/opsDecomissionDC.html].
> Add explanation of vNodes to online documentation
> -------------------------------------------------
>
> Key: CASSANDRA-14265
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14265
> Project: Cassandra
> Issue Type: Improvement
> Components: Documentation and Website
> Reporter: Kenneth Brotman
> Priority: Major
>
> A lot of inquiries on the mailing list about how vNodes work and how to set
> configuration properly. We should add an explanation to the documentation.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
