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From "Jeff Jirsa (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-13378) DS Cassandra3.0 Adding a datacenter to a cluster procedure not working for us
Date Sat, 25 Mar 2017 17:19:42 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-13378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15941800#comment-15941800
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Jeff Jirsa commented on CASSANDRA-13378:
----------------------------------------

Can you include the output of {{nodetool status}} and your gossiping property file snitch
config?



> DS Cassandra3.0  Adding a datacenter to a cluster procedure not working for us
> ------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-13378
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13378
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Configuration
>         Environment: 5 node cluster , 
> •	Server Model: Dell R730xd
> •	Processor: 2 * Intel Xeon E5-2630 – Total 16 cores 
> •	Memory: 192 GB  
> •	OS Drive: 2 * 120 GB 
> •	Direct attached storage – 8 TB (4 * 2TB SSD) + 1 * 800GB SSD
> •	10Gb Dual Port + 1Gb Dual Port Network Daughter Card 
> OS - OEL 2.6.32-642.15.1.el6.x86_64
> java version "1.8.0_91"
> Java(TM) SE Runtime Environment (build 1.8.0_91-b14)
> Java HotSpot(TM) 64-Bit Server VM (build 25.91-b14, mixed mode)
> 6 nodes in other DC are identical
>            Reporter: Kevin Rivait
>            Priority: Blocker
>             Fix For: 3.0.9
>
>         Attachments: cassandra.yaml, DS-add-a-dc-C3.0.rtf
>
>
> i have replicated the issue on my personal cluster using VMs.
> we have many keyspaces and users developing on the Dev Cluster we are trying to stretch.
> With my current VMs (10 total) i can create a 2 DC cluster  dc1 and dc2.
> i rebuild all nodes - clear data dirs and restart dc1.
> i also clear data dirs on dc2 nodes,  i donot restart yet,
> now i have single dc1 5 nodes cluster.
> snitch - GossipingPropertyFileSnitch
> i create keyspaces on DC1
> after i alter keyspaces with replication dc1 3   dc2 0    i can no longer query tables
- not enough replicas available for query at consistency ONE.
> same error with CQL using consistency local_one
> continue with procedure, startup dc2 nodes,  
> alter replication on keyspaces to  dc1 3  dc2 2
> from dc2 nodes , nodetool rebuild -- dc1  fails
> i am attaching detailed steps with errors  and cassandra.yaml



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