Cassandra を複数ノードで動かす

このドキュメントの内容は、以下の通りです。

• ノードの構成
• node1
• node2
• 同期前
• iptables
• 同期後
• ノードの状況

ノードの構成

node1

listen_address: 192.168.0.11
rpc_address: 0.0.0.0

node2

	- seeds: "192.168.0.11"
listen_address: 192.168.0.12
rpc_address: 0.0.0.0

同期前

薫 $ ./bin/nodetool ring
Address         DC          Rack        Status State   Load            Effective-Owership  Token
192.168.0.12   datacenter1 rack1       Up     Normal  1.15 MB         100.00%             63625612121959354869520953755374210025

iptables

-A INPUT -m state --state NEW -m tcp -p tcp --dport 7000 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 8080 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 9160 -j ACCEPT

services iptables restart

同期後

薫 $ ./bin/nodetool ring
Address         DC          Rack        Status State   Load            Effective-Owership  Token
192.168.0.12   datacenter1 rack1       Up     Normal  1.15 MB         50.00%             63625612121959354869520953755374210025
192.168.0.11   datacenter1 rack1       Up     Normal  1.15 MB         50.00%             93625612121959354869520953755374210025

ノードの状況

薫% ./bin/nodetool -h `hostname ` ring
Address      DC          Rack  Status State   Load    Effective-Owership  Token
                                                                             155267316395801922920209364523204324324
192.168.0.2  datacenter1 rack1 Up     Normal  5.13 GB 25.00%              27661428800449999121443886736291245028
192.168.0.3  datacenter1 rack1 Up     Normal  4.62 GB 25.00%              70196724665567307054365712665262271460
192.168.0.4  datacenter1 rack1 Up     Normal  8.58 GB 50.00%              155267316395801922920209364523204324324

薫% ./bin/nodetool -h `hostname ` ring
Address     DC          Rack  Status State   Load    Effective-Owership  Token
                                                                           155267316395801922920209364523204324324
192.168.0.2 datacenter1 rack1 Down   Normal  5.13 GB 25.00%              27661428800449999121443886736291245028
192.168.0.3 datacenter1 rack1 Up     Normal  4.62 GB 25.00%              70196724665567307054365712665262271460
192.168.0.4 datacenter1 rack1 Up     Normal  8.58 GB 50.00%              155267316395801922920209364523204324324