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https://issues.apache.org/jira/browse/CASSANDRA-8084?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14176925#comment-14176925
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Joshua McKenzie commented on CASSANDRA-8084:
--------------------------------------------
+1 to v4
> GossipFilePropertySnitch and EC2MultiRegionSnitch when used in AWS/GCE
> clusters doesnt use the PRIVATE IPS for Intra-DC communications - When
> running nodetool repair
> ---------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-8084
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8084
> Project: Cassandra
> Issue Type: Bug
> Components: Config
> Environment: Tested this in GCE and AWS clusters. Created multi
> region and multi dc cluster once in GCE and once in AWS and ran into the same
> problem.
> DISTRIB_ID=Ubuntu
> DISTRIB_RELEASE=12.04
> DISTRIB_CODENAME=precise
> DISTRIB_DESCRIPTION="Ubuntu 12.04.3 LTS"
> NAME="Ubuntu"
> VERSION="12.04.3 LTS, Precise Pangolin"
> ID=ubuntu
> ID_LIKE=debian
> PRETTY_NAME="Ubuntu precise (12.04.3 LTS)"
> VERSION_ID="12.04"
> Tried to install Apache Cassandra version ReleaseVersion: 2.0.10 and also
> latest DSE version which is 4.5 and which corresponds to 2.0.8.39.
> Reporter: Jana
> Assignee: Yuki Morishita
> Labels: features
> Fix For: 2.0.12
>
> Attachments: 8084-2.0-v2.txt, 8084-2.0-v3.txt, 8084-2.0-v4.txt,
> 8084-2.0.txt
>
>
> Neither of these snitches(GossipFilePropertySnitch and EC2MultiRegionSnitch )
> used the PRIVATE IPS for communication between INTRA-DC nodes in my
> multi-region multi-dc cluster in cloud(on both AWS and GCE) when I ran
> "nodetool repair -local". It works fine during regular reads.
> Here are the various cluster flavors I tried and failed-
> AWS + Multi-REGION + Multi-DC + GossipPropertyFileSnitch +
> (Prefer_local=true) in rackdc-properties file.
> AWS + Multi-REGION + Multi-DC + EC2MultiRegionSnitch + (Prefer_local=true) in
> rackdc-properties file.
> GCE + Multi-REGION + Multi-DC + GossipPropertyFileSnitch +
> (Prefer_local=true) in rackdc-properties file.
> GCE + Multi-REGION + Multi-DC + EC2MultiRegionSnitch + (Prefer_local=true) in
> rackdc-properties file.
> I am expecting with the above setup all of my nodes in a given DC all
> communicate via private ips since the cloud providers dont charge us for
> using the private ips and they charge for using public ips.
> But they can use PUBLIC IPs for INTER-DC communications which is working as
> expected.
> Here is a snippet from my log files when I ran the "nodetool repair -local" -
> Node responding to 'node running repair'
> INFO [AntiEntropyStage:1] 2014-10-08 14:47:51,628 Validator.java (line 254)
> [repair #1439f290-4efa-11e4-bf3a-df845ecf54f8] Sending completed merkle tree
> to /54.172.118.222 for system_traces/sessions
> INFO [AntiEntropyStage:1] 2014-10-08 14:47:51,741 Validator.java (line 254)
> [repair #1439f290-4efa-11e4-bf3a-df845ecf54f8] Sending completed merkle tree
> to /54.172.118.222 for system_traces/events
> Node running repair -
> INFO [AntiEntropyStage:1] 2014-10-08 14:47:51,927 RepairSession.java (line
> 166) [repair #1439f290-4efa-11e4-bf3a-df845ecf54f8] Received merkle tree for
> events from /54.172.118.222
> Note: The IPs its communicating is all PUBLIC Ips and it should have used the
> PRIVATE IPs starting with 172.x.x.x
> YAML file values :
> The listen address is set to: PRIVATE IP
> The broadcast address is set to: PUBLIC IP
> The SEEDs address is set to: PUBLIC IPs from both DCs
> The SNITCHES tried: GPFS and EC2MultiRegionSnitch
> RACK-DC: Had prefer_local set to true.
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