i have 2 node
node 1:10.10.200.25
node2:10.10.200.26
i want setup cluster, but it show this message
please told me how to fix it
############################
Node 1
############################
is_master = true
node_id_file = /etc/graylog/server/node-id
password_secret = IJgfiEmgncIBXTcxI1W8b37eGTUY9yMPbqIRkVwS8NMoRE8A8SP4L8aM6D8nOf3BI73y6oUzjkJCeEwe6n6H0VNAkBNVDF2s
root_username = admin
root_password_sha2 = 231ecc7d178da5f22983bc579599396d6c139a457987ae1ee0026d88432d6a72
root_timezone = Asia/Manila
bin_dir = /usr/share/graylog-server/bin
data_dir = /var/lib/graylog-server
plugin_dir = /usr/share/graylog-server/plugin
http_bind_address = 0.0.0.0:9000
elasticsearch_hosts = http://10.10.200.27:9200,http://10.10.200.28:9200
rotation_strategy = count
elasticsearch_max_docs_per_index = 20000000
elasticsearch_max_number_of_indices = 20
retention_strategy = delete
elasticsearch_shards = 4
elasticsearch_replicas = 0
elasticsearch_index_prefix = graylog
allow_leading_wildcard_searches = false
allow_highlighting = false
elasticsearch_analyzer = standard
output_batch_size = 500
output_flush_interval = 1
output_fault_count_threshold = 5
output_fault_penalty_seconds = 30
processbuffer_processors = 5
outputbuffer_processors = 3
processor_wait_strategy = blocking
ring_size = 65536
inputbuffer_ring_size = 65536
inputbuffer_processors = 2
inputbuffer_wait_strategy = blocking
message_journal_enabled = true
message_journal_dir = /var/lib/graylog-server/journal
lb_recognition_period_seconds = 3
stale_master_timeout = 2000
mongodb_uri = mongodb://localhost/graylog
mongodb_max_connections = 1000
mongodb_threads_allowed_to_block_multiplier = 5
proxied_requests_thread_pool_size = 32
############################
Node 2
############################
is_master = false
node_id_file = /etc/graylog/server/node-id
password_secret = IJgfiEmgncIBXTcxI1W8b37eGTUY9yMPbqIRkVwS8NMoRE8A8SP4L8aM6D8nOf3BI73y6oUzjkJCeEwe6n6H0VNAkBNVDF2s
root_username = admin
root_password_sha2 = 231ecc7d178da5f22983bc579599396d6c139a457987ae1ee0026d88432d6a72
root_timezone = Asia/Manila
bin_dir = /usr/share/graylog-server/bin
data_dir = /var/lib/graylog-server
plugin_dir = /usr/share/graylog-server/plugin
http_bind_address = 0.0.0.0:9000
elasticsearch_hosts = http://10.10.200.27:9200,http://10.10.200.28:9200
rotation_strategy = count
elasticsearch_max_docs_per_index = 20000000
elasticsearch_max_number_of_indices = 20
retention_strategy = delete
elasticsearch_shards = 4
elasticsearch_replicas = 0
elasticsearch_index_prefix = graylog
allow_leading_wildcard_searches = false
allow_highlighting = false
elasticsearch_analyzer = standard
output_batch_size = 500
output_flush_interval = 1
output_fault_count_threshold = 5
output_fault_penalty_seconds = 30
processbuffer_processors = 5
outputbuffer_processors = 3
processor_wait_strategy = blocking
ring_size = 65536
inputbuffer_ring_size = 65536
inputbuffer_processors = 2
inputbuffer_wait_strategy = blocking
message_journal_enabled = true
message_journal_dir = /var/lib/graylog-server/journal
lb_recognition_period_seconds = 3
stale_master_timeout = 2000
mongodb_uri = mongodb://localhost/graylog
mongodb_max_connections = 1000
mongodb_threads_allowed_to_block_multiplier = 5
proxied_requests_thread_pool_size = 32