Consul cluster Mode problem

Vikram Ranabhatt

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May 8, 2016, 2:09:59 PM5/8/16

to Consul

I have two consul/vault server having ip 10.20.0.252 and 10.20.0.254.Each server is having Vault and Consul installled.

I am trying to configure HA for vault.HA is failing as both the server is showing Active,instead of one active and other Stand by.

Consul Info command give num_peers = 0.Let me know what is going wrong here

Node1

---------------------------------------

I joined these two consul by

consul join 10.20.0.254

root@06e9c498-fde9-4932-b329-b18e826ca027:/var/vcap/jobs/consul/consul# /var/vcap/packages/consul/bin/consul members

Node Address Status Type Build Protocol DC

cf-vaultdemo-vault_consul-0 10.20.0.252:8301 alive server 0.6.0 2 dc1

cf-vaultdemo-vault_consul-1 10.20.0.254:8301 alive server 0.6.0 2 dc1

root@06e9c498-fde9-4932-b329-b18e826ca027:/var/vcap/jobs/consul/consul# /var/vcap/packages/consul/bin/consul info

gives num_peers = 0

raft:

applied_index = 17411

commit_index = 17411

fsm_pending = 0

last_contact = never

last_log_index = 17411

last_log_term = 15

last_snapshot_index = 16391

last_snapshot_term = 15

num_peers = 0

state = Leader

term = 15

{

"data_dir": "/var/vcap/store/consul",

"ui_dir": "/var/vcap/packages/consul-ui",

"node_name": "cf-vaultdemo-vault_consul-0",

"bind_addr": "0.0.0.0",

"client_addr": "0.0.0.0",

"advertise_addr": "10.20.0.252",

"leave_on_terminate": false,

"log_level": "INFO",

"domain": "consul",

"server": true,

"rejoin_after_leave": true,

"ports": {

"dns": 53

},

"disable_update_check": true,

"recursor": "10.20.0.40",

"start_join": [

],

"retry_join": [

],

"bootstrap_expect": 2

}

David Adams

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May 8, 2016, 2:41:48 PM5/8/16

to consu...@googlegroups.com

You need to have an odd number of Consul servers in your cluster. If you want HA, you will need to add a third Consul server and change bootstrap_expect to 3. The members have to vote on who the leader is and so with two there will never be a winner.

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V Kumar

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May 9, 2016, 6:04:43 AM5/9/16

to Consul

Hi

Still num_peers = 0

Now I am getting error

2016/05/09 09:56:50 [ERR] consul: 'cf-vaultdemo-vault_consul-0' and 'cf-vaultdemo-vault_consul-1' are both in bootstrap mode. Only one node should be in bootstrap mode, not adding Raft peer.

2016/05/09 09:56:50 [ERR] consul: 'cf-vaultdemo-vault_consul-2' and 'cf-vaultdemo-vault_consul-1' are both in bootstrap mode. Only one node should be in bootstrap mode, not adding Raft peer.

2016/05/09 09:57:50 [ERR] consul: 'cf-vaultdemo-vault_consul-0' and 'cf-vaultdemo-vault_consul-1' are both in bootstrap mode. Only one node should be in bootstrap mode, not adding Raft peer.

2016/05/09 09:57:50 [ERR] consul: 'cf-vaultdemo-vault_consul-2' and 'cf-vaultdemo-vault_consul-1' are both in bootstrap mode. Only one node should be in bootstrap mode, not adding Raft peer.

2016/05/09 09:58:50 [ERR] consul: 'cf-vaultdemo-vault_consul-2' and 'cf-vaultdemo-vault_consul-1' are both in bootstrap mode. Only one node should be in bootstrap mode, not adding Raft peer.

2016/05/09 09:58:50 [ERR] consul: 'cf-vaultdemo-vault_consul-0' and 'cf-vaultdemo-vault_consul-1' are both in bootstrap mode. Only one node should be in bootstrap mode, not adding Raft peer.

2016/05/09 09:59:53 [ERR] consul: 'cf-vaultdemo-vault_consul-0' and 'cf-vaultdemo-vault_consul-1' are both in bootstrap mode. Only one node should be in bootstrap mode, not adding Raft peer.

2016/05/09 09:59:53 [ERR] consul: 'cf-vaultdemo-vault_consul-2' and 'cf-vaultdemo-vault_consul-1' are both in bootstrap mode. Only one node should be in bootstrap mode, not adding Raft peer.

mode, not adding Raft peer.

2016/05/09 09:57:55 [ERR] consul: 'cf-vaultdemo-vault_consul-0' and 'cf-vaultdemo-vault_consul-2' are both in bootstrap mode. Only one node should be in bootstrap mode, not adding Raft peer.

2016/05/09 09:58:55 [ERR] consul: 'cf-vaultdemo-vault_consul-1' and 'cf-vaultdemo-vault_consul-2' are both in bootstrap mode. Only one node should be in bootstrap mode, not adding Raft peer.

2016/05/09 09:58:55 [ERR] consul: 'cf-vaultdemo-vault_consul-0' and 'cf-vaultdemo-vault_consul-2' are both in bootstrap mode. Only one node should be in bootstrap mode, not adding Raft peer.

2016/05/09 09:59:55 [ERR] consul: 'cf-vaultdemo-vault_consul-1' and 'cf-vaultdemo-vault_consul-2' are both in bootstrap mode. Only one node should be in bootstrap mode, not adding Raft peer.

2016/05/09 09:59:55 [ERR] consul: 'cf-vaultdemo-vault_consul-0' and 'cf-vaultdemo-vault_consul-2' are both in bootstrap mode. Only one node should be in bootstrap mode, not adding Raft peer.

2016/05/09 10:00:55 [ERR] consul: 'cf-vaultdemo-vault_consul-1' and 'cf-vaultdemo-vault_consul-0' are both in bootstrap mode. Only one node should be in bootstrap mode, not adding Raft peer.

2016/05/09 10:00:55 [ERR] consul: 'cf-vaultdemo-vault_consul-0' and 'cf-vaultdemo-vault_consul-2' are both in bootstrap mode. Only one node should be in bootstrap mode, not adding Raft peer.

Node 1:

{

"data_dir": "/var/vcap/store/consul",

"ui_dir": "/var/vcap/packages/consul-ui",

"node_name": "cf-vaultdemo-vault_consul-0",

"bind_addr": "0.0.0.0",

"client_addr": "0.0.0.0",

"advertise_addr": "10.20.0.252",

"leave_on_terminate": false,

"log_level": "INFO",

"domain": "consul",

"server": true,

"rejoin_after_leave": true,

"ports": {

"dns": 53

},

"disable_update_check": true,

"recursor": "10.20.0.40",

"start_join": [

],

"retry_join": [

],

"bootstrap_expect": 3

}

Node 2

{

"data_dir": "/var/vcap/store/consul",

"ui_dir": "/var/vcap/packages/consul-ui",

"node_name": "cf-vaultdemo-vault_consul-1",

"bind_addr": "0.0.0.0",

"client_addr": "0.0.0.0",

"advertise_addr": "10.20.0.254",

"leave_on_terminate": false,

"log_level": "INFO",

"domain": "consul",

"server": true,

"rejoin_after_leave": true,

"ports": {

"dns": 53

},

"disable_update_check": true,

"recursor": "10.20.0.40",

"start_join": [

],

"retry_join": [

],

"bootstrap_expect": 3

}

Node 3

{

"data_dir": "/var/vcap/store/consul",

"ui_dir": "/var/vcap/packages/consul-ui",

"node_name": "cf-vaultdemo-vault_consul-2",

"bind_addr": "0.0.0.0",

"client_addr": "0.0.0.0",

"advertise_addr": "10.20.0.32",

"leave_on_terminate": false,

"log_level": "INFO",

"domain": "consul",

"server": true,

"rejoin_after_leave": true,

"ports": {

"dns": 53

},

"disable_update_check": true,

"recursor": "10.20.0.40",

"start_join": [

],

"retry_join": [

],

"bootstrap_expect": 3

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