Cluster Issue with 2 node ES + Graylog + HAProxy

Graylog Central (peer support)
, ,
#1

Hi All,

I am setting up the Graylog Cluster and eventually ended up having some weird issue.

Setup - 2 Graylog + 2 ElasticSearch + 3 MongoDB

Except one mongoDB all other applications are installed on the 2 different machines.

I can see both Graylog, ES formed the cluster and when I forward the logs and i am able to see one node logs.

I am running HAProxy to load balance the WebUI, API and Logging.

I am getting the following error that I found in the Chrome traces

{“type”:“ApiError”,“message”:“blocked by: [SERVICE_UNAVAILABLE/1/state not recovered / initialized];”}

I checked the time and can confirm time is same across the machines.

{
“cluster_name” : “elastic-graylog-cluster”,
“version” : 11,
“state_uuid” : “qQlbwHBiQoSAq9u5bJSTAQ”,
“master_node” : “jV7BwjtfSBmalZfNvkpwHA”,
“blocks” : { },
“nodes” : {
“jV7BwjtfSBmalZfNvkpwHA” : {
“name” : “es-graylog-node2”,
“transport_address” : “10.12.X.Y:9300”,
“attributes” : { }
},
“yzXrRvR9T3exD1rsbb1s6A” : {
“name” : “es-graylog-node1”,
“transport_address” : “10.12.X.X:9300”,
“attributes” : { }
},
“vWs5zhuqR8uF1YoUmfq_2Q” : {
“name” : “graylog-82387c5d-b6e6-48dd-b63a-f923889ff039”,
“transport_address” : “10.12.X.Y:9350”,
“attributes” : {
“client” : “true”,
“data” : “false”,
“master” : “false”
}
}
},

This is Curl output from ES.

Graylog Cluster information

image
image.png774×126 5.91 KB

Could you please help me whats wrong in my cluster ? Thanks

Unable to start graylog because mongodb
#2

hej @xorloader41

you need to verify that each part is working without issue, all mongoDB servers see each other in a replicaset? Elasticsearch is building a Cluster that contains all Nodes. Graylog is starting without any error and you are able to connect to each configured web interface?

If the above is true for every part, then look at the HA Proxy setup. Did you checked your configuration against the documentation?

http://docs.graylog.org/en/2.3/pages/configuration/web_interface.html#haproxy-1-6

What can be found in the log files of each of that services when you have issues?

#3

Hi @jan,

Thanks for your comments.

I am sure there is no problem in ES. If I kill one graylog server instance and, If I run input only on the one node, then I can see all the logs.

like you recommended I tried logging in to the WEB UI of each machine and I am able to login without any issues using their IP:9000 format.

But If I use through LB, (hostname), then I am getting an following error

image
image.png1253×205 17.2 KB

I verified all MongoDB instances and each running perfectly with no issues. Primary, Secondary and Arbitrary assumes their role correctly.

image

image

whole snapshot shows that both Graylog Cluster and ES Cluster running fine.

ES Curl Query:

{
  **"cluster_name" : "elastic-graylog-cluster",**
**  "version" : 12,**
**  "state_uuid" : "Pytuw-ocRAGebXhdj0edXw",**
**  "master_node" : "X-EnoXqQQPm1kAb-DlN_jQ",**
**  "blocks" : { },**
**  "nodes" : {**
**    "iCUthA65RUOxFx3BcUdN2w" : {**
**      "name" : "es-graylog-node2",**
**      "transport_address" : "10.12.86.75:9300",**
**      "attributes" : { }**
**    },**
**    "X-EnoXqQQPm1kAb-DlN_jQ" : {**
**      "name" : "es-graylog-node1",**
**      "transport_address" : "10.12.86.74:9300",**
**      "attributes" : { }**
**    },**
**    "LZqfGi3PSme7O52I-5Tt4g" : {**
**      "name" : "graylog-51bdd951-e7ac-41ef-bdc2-543514f40b60",**
**      "transport_address" : "10.12.86.74:9350",**
**      "attributes" : {**
**        "client" : "true",**
**        "data" : "false",**
**        "master" : "false"**
**      }**
**    }**
  },
  "metadata" : {
    "cluster_uuid" : "7hvbe9W4Tj22aURgU97c_w",
    "templates" : {
      "graylog-internal" : {
        "template" : "graylog_*",
        "order" : -1,
        "settings" : {
          "index" : {
            "analysis" : {
              "analyzer" : {
                "analyzer_keyword" : {
                  "filter" : "lowercase",
                  "tokenizer" : "keyword"
                }
              }
            }
          }
        },
        "mappings" : {
          "message" : {
            "_source" : {
              "enabled" : true
            },
            "dynamic_templates" : [ {
              "internal_fields" : {
                "mapping" : {
                  "index" : "not_analyzed",
                  "type" : "string"
                },
                "match" : "gl2_*"
              }
            }, {
              "store_generic" : {
                "mapping" : {
                  "index" : "not_analyzed"
                },
                "match" : "*"
              }
            } ],
            "properties" : {
              "full_message" : {
                "analyzer" : "standard",
                "index" : "analyzed",
                "type" : "string"
              },
              "streams" : {
                "index" : "not_analyzed",
                "type" : "string"
              },
              "source" : {
                "analyzer" : "analyzer_keyword",
                "index" : "analyzed",
                "type" : "string"
              },
              "message" : {
                "analyzer" : "standard",
                "index" : "analyzed",
                "type" : "string"
              },
              "timestamp" : {
                "format" : "yyyy-MM-dd HH:mm:ss.SSS",
                "type" : "date"
              }
            }
          }
        }
      }
    },
    "indices" : {
      "graylog_0" : {
        "state" : "open",
        "settings" : {
          "index" : {
            "creation_date" : "1504888203538",
            "analysis" : {
              "analyzer" : {
                "analyzer_keyword" : {
                  "filter" : "lowercase",
                  "tokenizer" : "keyword"
                }
              }
            },
            "number_of_shards" : "4",
            "number_of_replicas" : "0",
            "uuid" : "R2Im6rBAQiO5wIiKu0ocWA",
            "version" : {
              "created" : "2040699"
            }
          }
        },
        "mappings" : {
          "message" : {
            "dynamic_templates" : [ {
              "internal_fields" : {
                "mapping" : {
                  "index" : "not_analyzed",
                  "type" : "string"
                },
                "match" : "gl2_*"
              }
            }, {
              "store_generic" : {
                "mapping" : {
                  "index" : "not_analyzed"
                },
                "match" : "*"
              }
            } ],
            "properties" : {
              "full_message" : {
                "analyzer" : "standard",
                "type" : "string"
              },
              "level" : {
                "type" : "long"
              },
              "gl2_remote_ip" : {
                "index" : "not_analyzed",
                "type" : "string"
              },
              "gl2_remote_port" : {
                "index" : "not_analyzed",
                "type" : "string"
              },
              "streams" : {
                "index" : "not_analyzed",
                "type" : "string"
              },
              "gl2_source_node" : {
                "index" : "not_analyzed",
                "type" : "string"
              },
              "source" : {
                "analyzer" : "analyzer_keyword",
                "type" : "string"
              },
              "gl2_source_input" : {
                "index" : "not_analyzed",
                "type" : "string"
              },
              "message" : {
                "analyzer" : "standard",
                "type" : "string"
              },
              "facility" : {
                "index" : "not_analyzed",
                "type" : "string"
              },
              "timestamp" : {
                "format" : "yyyy-MM-dd HH:mm:ss.SSS",
                "type" : "date"
              }
            }
          }
        },
        "aliases" : [ "graylog_deflector" ]
      }
    }
  },
  "routing_table" : {
    "indices" : {
      "graylog_0" : {
        "shards" : {
          "2" : [ {
            "state" : "STARTED",
            "primary" : true,
            "node" : "X-EnoXqQQPm1kAb-DlN_jQ",
            "relocating_node" : null,
            "shard" : 2,
            "index" : "graylog_0",
            "version" : 22,
            "allocation_id" : {
              "id" : "QKPTwga-TEG5VhERida2Xg"
            }
          } ],
          "1" : [ {
            "state" : "STARTED",
            "primary" : true,
            "node" : "iCUthA65RUOxFx3BcUdN2w",
            "relocating_node" : null,
            "shard" : 1,
            "index" : "graylog_0",
            "version" : 24,
            "allocation_id" : {
              "id" : "eoftdncZSmO7jUykWXWtzQ"
            }
          } ],
          "3" : [ {
            "state" : "STARTED",
            "primary" : true,
            "node" : "iCUthA65RUOxFx3BcUdN2w",
            "relocating_node" : null,
            "shard" : 3,
            "index" : "graylog_0",
            "version" : 24,
            "allocation_id" : {
              "id" : "LVDgW3wRRnyCZnYT2EX8hA"
            }
          } ],
          "0" : [ {
            "state" : "STARTED",
            "primary" : true,
            "node" : "X-EnoXqQQPm1kAb-DlN_jQ",
            "relocating_node" : null,
            "shard" : 0,
            "index" : "graylog_0",
            "version" : 22,
            "allocation_id" : {
              "id" : "epTALwAOTMyOxE0O5edfOQ"
            }
          } ]
        }
      }
    }
  },
  "routing_nodes" : {
    "unassigned" : [ ],
    "nodes" : {
      "X-EnoXqQQPm1kAb-DlN_jQ" : [ {
        "state" : "STARTED",
        "primary" : true,
        "node" : "X-EnoXqQQPm1kAb-DlN_jQ",
        "relocating_node" : null,
        "shard" : 2,
        "index" : "graylog_0",
        "version" : 22,
        "allocation_id" : {
          "id" : "QKPTwga-TEG5VhERida2Xg"
        }
      }, {
        "state" : "STARTED",
        "primary" : true,
        "node" : "X-EnoXqQQPm1kAb-DlN_jQ",
        "relocating_node" : null,
        "shard" : 0,
        "index" : "graylog_0",
        "version" : 22,
        "allocation_id" : {
          "id" : "epTALwAOTMyOxE0O5edfOQ"
        }
      } ],
      "iCUthA65RUOxFx3BcUdN2w" : [ {
        "state" : "STARTED",
        "primary" : true,
        "node" : "iCUthA65RUOxFx3BcUdN2w",
        "relocating_node" : null,
        "shard" : 1,
        "index" : "graylog_0",
        "version" : 24,
        "allocation_id" : {
          "id" : "eoftdncZSmO7jUykWXWtzQ"
        }
      }, {
        "state" : "STARTED",
        "primary" : true,
        "node" : "iCUthA65RUOxFx3BcUdN2w",
        "relocating_node" : null,
        "shard" : 3,
        "index" : "graylog_0",
        "version" : 24,
        "allocation_id" : {
          "id" : "LVDgW3wRRnyCZnYT2EX8hA"
        }
      } ]
    }
  }
}

From MongoDB:
rs0:PRIMARY> show databases;
admin 0.000GB
graylog 0.001GB
graylog2 0.001GB
local 0.033GB
rs0:PRIMARY> use graylog2;
switched to db graylog2
rs0:PRIMARY> show tables;
alarmcallbackconfigurations
alarmcallbackhistory
alerts
cluster_config
cluster_events
collectors
content_packs
grok_patterns
index_failures
index_ranges
index_sets
inputs
nodes
notifications
pipeline_processor_pipelines
pipeline_processor_pipelines_streams
pipeline_processor_rules
roles
sessions
streamrules
streams
system_messages
users
rs0:PRIMARY>

Node 1:

GRAYLOG Config:

is_master = true
node_id_file = /etc/graylog/server/node-id
password_secret = YrjGI2RF1k0Q2qYBXXXXXXXXXXXXXXXXYYYYYYYYYFwz3vcveIGgXpyUrEf8za5chZTtZoaz5
root_password_sha2 = 7676aaafb027c8jhfskjhsdfhsdkfjh2752f625b752e55e55b48e607e358
plugin_dir = /usr/share/graylog-server/plugin
rest_listen_uri = http://10.12.86.74:9000/api/
web_listen_uri = http://10.12.86.74:9000/
web_endpoint_uri = http://testgraylog.testdomain.com:9000/api/
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_cluster_name = elastic-graylog-cluster
elasticsearch_discovery_zen_ping_multicast_enabled = false
elasticsearch_discovery_zen_ping_unicast_hosts = 10.12.86.74:9300, 10.12.86.75:9300
elasticsearch_network_host = 10.12.86.74
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
mongodb_uri = mongodb://mongodb-primary:27017,mongodb-secondary:27017,mongodb-arbit:27017/graylog2
mongodb_max_connections = 1000
mongodb_threads_allowed_to_block_multiplier = 5
content_packs_dir = /usr/share/graylog-server/contentpacks
content_packs_auto_load = grok-patterns.json
proxied_requests_thread_pool_size = 32

ES Config:

 cluster.name: elastic-graylog-cluster
 node.name: es-graylog-node1
 path.data: /esdata
 bootstrap.memory_lock: true
 network.host: 10.12.86.74
 discovery.zen.ping.multicast.enabled: false
 discovery.zen.ping.unicast.hosts: ["10.12.86.74:9300", "10.12.86.75:9300"]

MongoDB1 Config:

systemLog:
  destination: file
  logAppend: true
  path: /var/log/mongodb/mongod.log
storage:
  dbPath: /var/lib/mongo
  journal:
    enabled: true
processManagement:
  fork: true  # fork and run in background
  pidFilePath: /var/run/mongodb/mongod.pid  # location of pidfile
net:
  port: 27017
  bindIp: 10.12.86.74
replication:
  replSetName: rs0

Node 2:

GRAYLOG Config:

is_master = false
node_id_file = /etc/graylog/server/node-id
password_secret = YrjGI2RF1k0Q2qYBXXXXXXXXXXXXXXXXYYYYYYYYYFwz3vcveIGgXpyUrEf8za5chZTtZoaz5
root_password_sha2 = 7676aaafb027c8jhfskjhsdfhsdkfjh2752f625b752e55e55b48e607e358
plugin_dir = /usr/share/graylog-server/plugin
rest_listen_uri = http://10.12.86.75:9000/api/
web_listen_uri = http://10.12.86.75:9000/
web_endpoint_uri = http://testgraylog.testdomain.com:9000/api/
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_cluster_name = elastic-graylog-cluster
elasticsearch_discovery_zen_ping_multicast_enabled = false
elasticsearch_discovery_zen_ping_unicast_hosts = 10.12.86.74:9300, 10.12.86.75:9300
elasticsearch_network_host = 10.12.86.75
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
mongodb_uri = mongodb://mongodb-primary:27017,mongodb-secondary:27017,mongodb-arbit:27017/graylog2
mongodb_max_connections = 1000
mongodb_threads_allowed_to_block_multiplier = 5
content_packs_dir = /usr/share/graylog-server/contentpacks
content_packs_auto_load = grok-patterns.json
proxied_requests_thread_pool_size = 32

ES Config:

 cluster.name: elastic-graylog-cluster
 node.name: es-graylog-node2
 path.data: /esdata
 bootstrap.memory_lock: true
 network.host: 10.12.86.75
 discovery.zen.ping.multicast.enabled: false
 discovery.zen.ping.unicast.hosts: ["10.12.86.74:9300", "10.12.86.75:9300"]

MongoDB2 Config:

systemLog:
  destination: file
  logAppend: true
  path: /var/log/mongodb/mongod.log
storage:
  dbPath: /var/lib/mongo
  journal:
    enabled: true
processManagement:
  fork: true  # fork and run in background
  pidFilePath: /var/run/mongodb/mongod.pid  # location of pidfile
net:
  port: 27017
  bindIp: 10.12.86.75  # Listen to local interface only, comment to listen on all interfaces.
replication:
  replSetName: rs0

MongoDB Arbit:

systemLog:
  destination: file
  logAppend: true
  path: /var/log/mongodb/mongod.log
storage:
  dbPath: /var/lib/mongo
  journal:
    enabled: true
processManagement:
  fork: true  # fork and run in background
  pidFilePath: /var/run/mongodb/mongod.pid  # location of pidfile
net:
  port: 27017
  bindIp: 10.12.86.76  # Listen to local interface only, comment to listen on all interfaces.
replication:
  replSetName: rs0

HAProxy Config:

global
    log         127.0.0.1 local2
    chroot      /var/lib/haproxy
    pidfile     /var/run/haproxy.pid
    maxconn     4000
    user        haproxy
    group       haproxy
    daemon
    stats socket /var/lib/haproxy/stats

listen  stats 10.12.86.74:12230
     mode            http
     log             global
      maxconn 10
     clitimeout      100s
     srvtimeout      100s
     contimeout      100s
     timeout queue   100s
     stats enable
     stats hide-version
     stats refresh 30s
     stats show-node
     stats auth admin:password
     stats uri  /haproxy?stats

defaults
    mode                    http
    log                     global
    option                  httplog
    option                  dontlognull
    option http-server-close
    option forwardfor       except 127.0.0.0/8
    option                  redispatch
    retries                 3
    timeout http-request    10s
    timeout queue           1m
    timeout connect         10s
    timeout client          1m
    timeout server          1m
    timeout http-keep-alive 10s
    timeout check           10s
    maxconn                 3000

# Frontend WEB Redirection

frontend graylog_http
    bind *:80
    option forwardfor
    http-request add-header X-Forwarded-Host %[req.hdr(host)]
    http-request add-header X-Forwarded-Server %[req.hdr(host)]
    http-request add-header X-Forwarded-Port %[dst_port]
    acl is_graylog hdr_dom(host) -i -m str testgraylog.testdomain.com
    use_backend  graylog_be_webserver if is_graylog

backend graylog_be_webserver
    description Backend Web Servers
    balance roundrobin
    option httpchk HEAD /api/system/lbstatus
    http-request set-header X-Graylog-Server-URL http://testgraylog.testdomain.com/api
    server graylog1 10.12.86.74:9000 maxconn 20 check
    server graylog2 10.12.86.75:9000 maxconn 20 check

# Log Load Balancing

frontend graylog_tcp
        bind *:12221
        mode tcp
        default_backend log_pools

backend log_pools
        balance roundrobin
        mode tcp
        server graylog-logging1 10.12.86.74:12222
        server graylog-logging2 10.12.86.75:12222

This is my current running Config, and seems I am not able to locate the mistake that I committed

#4

you did not need to set: web_endpoint_uri because you set the X-Graylog-Server-URL in your HA Proxy. As i’m not the HAProxy pro I’m not sure that use_backend graylog_be_webserver if is_graylog is working like use_backend graylog_be_webserver in our documentation.

I think that testgraylog.testdomain.com is resolvable in your network and your client?

regards
Jan

#5

I removed if Clause in HAProxy and yes, testgraylog.testdomain.com is resolvable in my network. Even without “If” its not working.

#6

@jan one more query. This DNS name should point to both the cluster nodes or only the HAProxy node ?

right now its pointing to 10.12.86.74, in the same machine I am running on GL, ES, Mongo DB Primary. Can you advice ?

Also Few weird Graylog logs

2017-09-12T06:12:33.441Z INFO  [zen] [graylog-82387c5d-b6e6-48dd-b63a-f923889ff039] failed to send join request to master [{es-graylog-node1}{2825RtSPS8WtOFue_DtAMQ}{10.12.86.74}{10.12.86.74:9300}], reason [RemoteTransportException[[es-graylog-node1][10.12.86.74:9300][internal:discovery/zen/join]]; nested: ConnectTransportException[[graylog-82387c5d-b6e6-48dd-b63a-f923889ff039][10.12.86.75:9350] connect_timeout[30s]]; nested: NotSerializableExceptionWrapper[connect_timeout_exception: connection timed out: 10.12.86.75/10.12.86.75:9350]; ]
2017-09-12T06:13:06.483Z INFO  [zen] [graylog-82387c5d-b6e6-48dd-b63a-f923889ff039] failed to send join request to master [{es-graylog-node1}{2825RtSPS8WtOFue_DtAMQ}{10.12.86.74}{10.12.86.74:9300}], reason [RemoteTransportException[[es-graylog-node1][10.12.86.74:9300][internal:discovery/zen/join]]; nested: ConnectTransportException[[graylog-82387c5d-b6e6-48dd-b63a-f923889ff039][10.12.86.75:9350] connect_timeout[30s]]; nested: NotSerializableExceptionWrapper[connect_timeout_exception: connection timed out: 10.12.86.75/10.12.86.75:9350]; ]
#7

what version of Graylog are you using @xorloader41?

in your Elasticsearch configs you did not need to add the ports if you use default ports.

#8

@jan Graylog 2.2.3 is what I am using.

on the non-working node I noticed that the logs are not processed even though its been received by the node.

image
image.png987×163 14.3 KB

#9

Please post the complete logs of both Graylog nodes.

#10

@jochen Luckily upgrade helped me to solve the problem. When updating to the new version (2.3.1-1) Solved the problem. Thanks @jan and @jochen for helping me throughout the implementation.

#11

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