Unable to create index template graylog-internal


#1

I have just done a clean installation with 3x graylog 2.2.3 instances. Aim being to cluster the three nodes.

WebUI and 3 nodes are functional, not reporting any issues.

Encountering an issue affecting the elasticsearch clustering / replicas that I’m struggling to find a resolution to.

As i have three nodes, i considered the following to be correct settings, however may not be related to the error below.
elasticsearch_shards = 3
elasticsearch_replicas = 3

Here is the error written to server.log

2017-05-23T13:32:43.530+10:00 INFO  [MongoIndexSet] Did not find an deflector alias. Setting one up now.
2017-05-23T13:32:43.532+10:00 INFO  [MongoIndexSet] There is no index target to point to. Creating one now.
2017-05-23T13:32:43.535+10:00 INFO  [MongoIndexSet] Cycling from <none> to <graylog_0>.
2017-05-23T13:32:43.535+10:00 INFO  [MongoIndexSet] Creating target index <graylog_0>.
2017-05-23T13:32:43.554+10:00 ERROR [IndexRotationThread] Couldn't point deflector to a new index
org.graylog2.indexer.ElasticsearchException: Unable to create index template graylog-internal

No handler for type [text] declared on field [full_message]

2017-05-23T13:32:53.537+10:00 INFO  [MongoIndexSet] Did not find an deflector alias. Setting one up now.
2017-05-23T13:32:53.540+10:00 INFO  [MongoIndexSet] There is no index target to point to. Creating one now.
2017-05-23T13:32:53.544+10:00 INFO  [MongoIndexSet] Cycling from <none> to <graylog_0>.
2017-05-23T13:32:53.544+10:00 INFO  [MongoIndexSet] Creating target index <graylog_0>.
2017-05-23T13:32:53.563+10:00 ERROR [IndexRotationThread] Couldn't point deflector to a new index
org.graylog2.indexer.ElasticsearchException: Unable to create index template graylog-internal

No handler for type [text] declared on field [full_message]
   
2017-05-23T13:32:55.526+10:00 ERROR [BatchedElasticSearchOutputFlushThread] Caught exception while trying to flush output: {}
org.graylog2.indexer.ElasticsearchException: Couldn't read cluster health for indices [graylog_deflector]

Here is the Elasticsearch configuration within elasticsearch.yaml

# ======================== Elasticsearch Configuration =========================
#
# ---------------------------------- Cluster -----------------------------------
#
# Use a descriptive name for your cluster:
#
cluster.name: graylog
#
# ------------------------------------ Node ------------------------------------
#
# Use a descriptive name for the node:
#
# node.name: node-1
#
# Add custom attributes to the node:
#
# node.rack: r1
#
# ----------------------------------- Paths ------------------------------------
#
# Path to directory where to store the data (separate multiple locations by comma):
#
# path.data: /path/to/data
#
# Path to log files:
#
# path.logs: /path/to/logs
#
# ----------------------------------- Memory -----------------------------------
#
# Lock the memory on startup:
#
# bootstrap.memory_lock: true
#
# Make sure that the `ES_HEAP_SIZE` environment variable is set to about half the memory
# available on the system and that the owner of the process is allowed to use this limit.
#
# Elasticsearch performs poorly when the system is swapping the memory.
#
# ---------------------------------- Network -----------------------------------
#
# Set the bind address to a specific IP (IPv4 or IPv6):
#
network.host: 10.40.1.231
#
# Set a custom port for HTTP:
#
# http.port: 9200
#
# For more information, see the documentation at:
# <http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-network.html>
#
# --------------------------------- Discovery ----------------------------------
#
# Pass an initial list of hosts to perform discovery when new node is started:
# The default list of hosts is ["127.0.0.1", "[::1]"]
#
discovery.zen.ping.multicast.enabled: false
discovery.zen.ping.unicast.hosts: ["10.40.1.231:9300", "10.40.1.232:9300", "10.40.1.233:9300"]
#
# Prevent the "split brain" by configuring the majority of nodes (total number of nodes / 2 + 1):
#
# discovery.zen.minimum_master_nodes: 3
#
# For more information, see the documentation at:
# <http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-discovery.html>
#
# ---------------------------------- Gateway -----------------------------------
#
# Block initial recovery after a full cluster restart until N nodes are started:
#
# gateway.recover_after_nodes: 3
#
# For more information, see the documentation at:
# <http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-gateway.html>
#
# ---------------------------------- Various -----------------------------------
#
# Disable starting multiple nodes on a single system:
#
# node.max_local_storage_nodes: 1
#
# Require explicit names when deleting indices:
#
# action.destructive_requires_name: true
script.inline: false
script.indexed: false
script.file: false

And the main server.conf

############################
# GRAYLOG CONFIGURATION FILE
############################.
is_master = true
node_id_file = /etc/graylog/server/node-id
password_secret = ZXfABUpDQBktG4y6WVxKTNqj2hs4vJdG4kcPjQBvx7LSh26ytvu78wDUwEJxgAwF
# The default root user is named 'admin'
#root_username = admin
root_password_sha2 = e0bd3b19569b6834693785191b7ea093c9fdce46e38fe6760b64e30d80cf10bc
# The email address of the root user.
# Default is empty
#root_email = ""
# The time zone setting of the root user. See http://www.joda.org/joda-time/timezones.html for a list of valid time zones.
# Default is UTC
root_timezone = Australia/Sydney
# Set plugin directory here (relative or absolute)
plugin_dir = /usr/share/graylog-server/plugin
# REST API listen URI. Must be reachable by other Graylog server nodes if you run a cluster.
# When using Graylog Collectors, this URI will be used to receive heartbeat messages and must be accessible for all collectors.
rest_listen_uri = http://10.40.1.231:12900/api/
#rest_transport_uri = http://192.168.1.1:9000/api/
#rest_enable_cors = false
# Enable GZIP support for REST API. This compresses API responses and therefore helps to reduce
# overall round trip times. This is enabled by default. Uncomment the next line to disable it.
#rest_enable_gzip = false
# Enable HTTPS support for the REST API. This secures the communication with the REST API with
# TLS to prevent request forgery and eavesdropping. This is disabled by default. Uncomment the
# next line to enable it.
#rest_enable_tls = true
# The X.509 certificate chain file in PEM format to use for securing the REST API.
#rest_tls_cert_file = /path/to/graylog.crt
# The PKCS#8 private key file in PEM format to use for securing the REST API.
#rest_tls_key_file = /path/to/graylog.key
# The password to unlock the private key used for securing the REST API.
#rest_tls_key_password = secret
# The maximum size of the HTTP request headers in bytes.
#rest_max_header_size = 8192
# The maximal length of the initial HTTP/1.1 line in bytes.
#rest_max_initial_line_length = 4096
# The size of the thread pool used exclusively for serving the REST API.
#rest_thread_pool_size = 16
# Comma separated list of trusted proxies that are allowed to set the client address with X-Forwarded-For
# header. May be subnets, or hosts.
#trusted_proxies = 127.0.0.1/32, 0:0:0:0:0:0:0:1/128
# Enable the embedded Graylog web interface.
# Default: true
web_enable = true
# Web interface listen URI..
web_listen_uri = http://10.40.1.231:9000/
# Web interface endpoint URI. This setting can be overriden on a per-request basis with the X-Graylog-Server-URL header.
# Default: $rest_transport_uri
#web_endpoint_uri =
#web_enable_cors = false
# Enable/disable GZIP support for the web interface. This compresses HTTP responses and therefore helps to reduce
# overall round trip times. This is enabled by default. Uncomment the next line to disable it.
#web_enable_gzip = false
# Enable HTTPS support for the web interface. This secures the communication of the web browser with the web interface
# using TLS to prevent request forgery and eavesdropping.
# This is disabled by default. Uncomment the next line to enable it and see the other related configuration settings.
#web_enable_tls = true
# The X.509 certificate chain file in PEM format to use for securing the web interface.
#web_tls_cert_file = /path/to/graylog-web.crt
# The PKCS#8 private key file in PEM format to use for securing the web interface.
#web_tls_key_file = /path/to/graylog-web.key
# The password to unlock the private key used for securing the web interface.
#web_tls_key_password = secret
# The maximum size of the HTTP request headers in bytes.
#web_max_header_size = 8192
# The maximal length of the initial HTTP/1.1 line in bytes.
#web_max_initial_line_length = 4096
# The size of the thread pool used exclusively for serving the web interface.
#web_thread_pool_size = 16
# List of Elasticsearch hosts Graylog should connect to.
# Need to be specified as a comma-separated list of valid URIs for the http ports of your elasticsearch nodes.
# If one or more of your elasticsearch hosts require authentication, include the credentials in each node URI that
# requires authentication.
#
# Default: "http://127.0.0.1:9200"
elasticsearch_hosts = http://10.40.1.231:9200,http://10.40.1.232:9200,http://10.40.1.233:9200
# The (major) version of Elasticsearch being used in the cluster. This setting controls which
# index mapping/index template is being used by Graylog. Valid values are 2 and 5.
#
# Default: 5
#elasticsearch_version = 5
# Maximum amount of time to wait for successfull connection to Elasticsearch HTTP port.
#
# Default: 10 Seconds
#elasticsearch_connect_timeout = 10s
# Maximum amount of time to wait for reading back a response from an Elasticsearch server.
#
# Default: 60 seconds
#elasticsearch_socket_timeout = 60s
# Maximum idle time for an Elasticsearch connection. If this is exceeded, this connection will
# be tore down.
#
# Default: inf
#elasticsearch_idle_timeout = -1s
# Maximum number of total connections to Elasticsearch.
#
# Default: 20
#elasticsearch_max_total_connections = 20
# Maximum number of total connections per Elasticsearch route (normally this means per
# elasticsearch server).
#
# Default: 2
#elasticsearch_max_total_connections_per_route = 2
# Graylog will use multiple indices to store documents in. You can configured the strategy it uses to determine
# when to rotate the currently active write index.
# It supports multiple rotation strategies:
#   - "count" of messages per index, use elasticsearch_max_docs_per_index below to configure
#   - "size" per index, use elasticsearch_max_size_per_index below to configure
# valid values are "count", "size" and "time", default is "count"
#
# ATTENTION: These settings have been moved to the database in 2.0. When you upgrade, make sure to set these
#            to your previous 1.x settings so they will be migrated to the database!
rotation_strategy = count
# (Approximate) maximum number of documents in an Elasticsearch index before a new index
# is being created, also see no_retention and elasticsearch_max_number_of_indices.
# Configure this if you used 'rotation_strategy = count' above.
#
# ATTENTION: These settings have been moved to the database in 2.0. When you upgrade, make sure to set these
#            to your previous 1.x settings so they will be migrated to the database!
elasticsearch_max_docs_per_index = 20000000
# (Approximate) maximum size in bytes per Elasticsearch index on disk before a new index is being created, also see
# no_retention and elasticsearch_max_number_of_indices. Default is 1GB.
# Configure this if you used 'rotation_strategy = size' above.
#
# ATTENTION: These settings have been moved to the database in 2.0. When you upgrade, make sure to set these
#            to your previous 1.x settings so they will be migrated to the database!
#elasticsearch_max_size_per_index = 1073741824
# (Approximate) maximum time before a new Elasticsearch index is being created, also see
# no_retention and elasticsearch_max_number_of_indices. Default is 1 day.
# Configure this if you used 'rotation_strategy = time' above.
# Please note that this rotation period does not look at the time specified in the received messages, but is
# using the real clock value to decide when to rotate the index!
# Specify the time using a duration and a suffix indicating which unit you want:
#  1w  = 1 week
#  1d  = 1 day
#  12h = 12 hours
# Permitted suffixes are: d for day, h for hour, m for minute, s for second.
#
# ATTENTION: These settings have been moved to the database in 2.0. When you upgrade, make sure to set these
#            to your previous 1.x settings so they will be migrated to the database!
#elasticsearch_max_time_per_index = 1d
# Disable checking the version of Elasticsearch for being compatible with this Graylog release.
# WARNING: Using Graylog with unsupported and untested versions of Elasticsearch may lead to data loss!
#elasticsearch_disable_version_check = true
# Disable message retention on this node, i. e. disable Elasticsearch index rotation.
#no_retention = false
# How many indices do you want to keep?
#
# ATTENTION: These settings have been moved to the database in 2.0. When you upgrade, make sure to set these
#            to your previous 1.x settings so they will be migrated to the database!
elasticsearch_max_number_of_indices = 20
# Decide what happens with the oldest indices when the maximum number of indices is reached.
# The following strategies are availble:
#   - delete # Deletes the index completely (Default)
#   - close # Closes the index and hides it from the system. Can be re-opened later.
#
# ATTENTION: These settings have been moved to the database in 2.0. When you upgrade, make sure to set these
#            to your previous 1.x settings so they will be migrated to the database!
retention_strategy = delete
# How many Elasticsearch shards and replicas should be used per index? Note that this only applies to newly created indices.
# ATTENTION: These settings have been moved to the database in Graylog 2.2.0. When you upgrade, make sure to set these
#            to your previous settings so they will be migrated to the database!
elasticsearch_shards = 3
elasticsearch_replicas = 3
# Prefix for all Elasticsearch indices and index aliases managed by Graylog.
#
# ATTENTION: These settings have been moved to the database in Graylog 2.2.0. When you upgrade, make sure to set these
#            to your previous settings so they will be migrated to the database!
elasticsearch_index_prefix = graylog
# Name of the Elasticsearch index template used by Graylog to apply the mandatory index mapping.
# Default: graylog-internal
#
# ATTENTION: These settings have been moved to the database in Graylog 2.2.0. When you upgrade, make sure to set these
#            to your previous settings so they will be migrated to the database!
#elasticsearch_template_name = graylog-internal
# Do you want to allow searches with leading wildcards? This can be extremely resource hungry and should only
# be enabled with care. See also: http://docs.graylog.org/en/2.1/pages/queries.html
allow_leading_wildcard_searches = false
# Do you want to allow searches to be highlighted? Depending on the size of your messages this can be memory hungry and
# should only be enabled after making sure your Elasticsearch cluster has enough memory.
allow_highlighting = false
elasticsearch_discovery_zen_ping_unicast_hosts = 10.40.1.231:9300,10.40.1.232:9300,10.40.1.233:9300
# Analyzer (tokenizer) to use for message and full_message field. The "standard" filter usually is a good idea.
# All supported analyzers are: standard, simple, whitespace, stop, keyword, pattern, language, snowball, custom
# Elasticsearch documentation: https://www.elastic.co/guide/en/elasticsearch/reference/2.3/analysis.html
# Note that this setting only takes effect on newly created indices.
#
# ATTENTION: These settings have been moved to the database in Graylog 2.2.0. When you upgrade, make sure to set these
#            to your previous settings so they will be migrated to the database!
elasticsearch_analyzer = standard
# Global request timeout for Elasticsearch requests (e. g. during search, index creation, or index time-range
# calculations) based on a best-effort to restrict the runtime of Elasticsearch operations.
# Default: 1m
#elasticsearch_request_timeout = 1m
# Global timeout for index optimization (force merge) requests.
# Default: 1h
#elasticsearch_index_optimization_timeout = 1h
# Maximum number of concurrently running index optimization (force merge) jobs.
# If you are using lots of different index sets, you might want to increase that number.
# Default: 20
#elasticsearch_index_optimization_jobs = 20
# Time interval for index range information cleanups. This setting defines how often stale index range information
# is being purged from the database.
# Default: 1h
#index_ranges_cleanup_interval = 1h
# Batch size for the Elasticsearch output. This is the maximum (!) number of messages the Elasticsearch output
# module will get at once and write to Elasticsearch in a batch call. If the configured batch size has not been
# reached within output_flush_interval seconds, everything that is available will be flushed at once. Remember
# that every outputbuffer processor manages its own batch and performs its own batch write calls.
# ("outputbuffer_processors" variable)
output_batch_size = 500
# Flush interval (in seconds) for the Elasticsearch output. This is the maximum amount of time between two
# batches of messages written to Elasticsearch. It is only effective at all if your minimum number of messages
# for this time period is less than output_batch_size * outputbuffer_processors.
output_flush_interval = 1
# As stream outputs are loaded only on demand, an output which is failing to initialize will be tried over and
# over again. To prevent this, the following configuration options define after how many faults an output will
# not be tried again for an also configurable amount of seconds.
output_fault_count_threshold = 5
output_fault_penalty_seconds = 30
# The number of parallel running processors.
# Raise this number if your buffers are filling up.
processbuffer_processors = 5
outputbuffer_processors = 3
#outputbuffer_processor_keep_alive_time = 5000
#outputbuffer_processor_threads_core_pool_size = 3
#outputbuffer_processor_threads_max_pool_size = 30
# UDP receive buffer size for all message inputs (e. g. SyslogUDPInput).
#udp_recvbuffer_sizes = 1048576
# Wait strategy describing how buffer processors wait on a cursor sequence. (default: sleeping)
# Possible types:
#  - yielding
#     Compromise between performance and CPU usage.
#  - sleeping
#     Compromise between performance and CPU usage. Latency spikes can occur after quiet periods.
#  - blocking
#     High throughput, low latency, higher CPU usage.
#  - busy_spinning
#     Avoids syscalls which could introduce latency jitter. Best when threads can be bound to specific CPU cores.
processor_wait_strategy = blocking
# Size of internal ring buffers. Raise this if raising outputbuffer_processors does not help anymore.
# For optimum performance your LogMessage objects in the ring buffer should fit in your CPU L3 cache.
# Must be a power of 2. (512, 1024, 2048, ...)
ring_size = 65536
inputbuffer_ring_size = 65536
inputbuffer_processors = 2
inputbuffer_wait_strategy = blocking
# Enable the disk based message journal.
message_journal_enabled = true
# The directory which will be used to store the message journal. The directory must me exclusively used by Graylog and
# must not contain any other files than the ones created by Graylog itself.
#
# ATTENTION:
#   If you create a seperate partition for the journal files and use a file system creating directories like 'lost+found'
#   in the root directory, you need to create a sub directory for your journal.
#   Otherwise Graylog will log an error message that the journal is corrupt and Graylog will not start.
message_journal_dir = /var/lib/graylog-server/journal
# Journal hold messages before they could be written to Elasticsearch.
# For a maximum of 12 hours or 5 GB whichever happens first.
# During normal operation the journal will be smaller.
#message_journal_max_age = 12h
#message_journal_max_size = 5gb
#message_journal_flush_age = 1m
#message_journal_flush_interval = 1000000
#message_journal_segment_age = 1h
#message_journal_segment_size = 100mb
# Number of threads used exclusively for dispatching internal events. Default is 2.
#async_eventbus_processors = 2
# How many seconds to wait between marking node as DEAD for possible load balancers and starting the actual
# shutdown process. Set to 0 if you have no status checking load balancers in front.
lb_recognition_period_seconds = 3
# Journal usage percentage that triggers requesting throttling for this server node from load balancers. The feature is
# disabled if not set.
#lb_throttle_threshold_percentage = 95
# Every message is matched against the configured streams and it can happen that a stream contains rules which
# take an unusual amount of time to run, for example if its using regular expressions that perform excessive backtracking.
# This will impact the processing of the entire server. To keep such misbehaving stream rules from impacting other
# streams, Graylog limits the execution time for each stream.
# The default values are noted below, the timeout is in milliseconds.
# If the stream matching for one stream took longer than the timeout value, and this happened more than "max_faults" times
# that stream is disabled and a notification is shown in the web interface.
#stream_processing_timeout = 2000
#stream_processing_max_faults = 3
# Length of the interval in seconds in which the alert conditions for all streams should be checked
# and alarms are being sent.
#alert_check_interval = 60
# Since 0.21 the Graylog server supports pluggable output modules. This means a single message can be written to multiple
# outputs. The next setting defines the timeout for a single output module, including the default output module where all
# messages end up.
#
# Time in milliseconds to wait for all message outputs to finish writing a single message.
#output_module_timeout = 10000
# Time in milliseconds after which a detected stale master node is being rechecked on startup.
#stale_master_timeout = 2000
# Time in milliseconds which Graylog is waiting for all threads to stop on shutdown.
#shutdown_timeout = 30000
# MongoDB connection string
# See https://docs.mongodb.com/manual/reference/connection-string/ for details
#mongodb_uri = mongodb://localhost/graylog
# Authenticate against the MongoDB server
#mongodb_uri = mongodb://grayloguser:secret@localhost:27017/graylog
# Use a replica set instead of a single host
mongodb_uri = mongodb://grayloguser:password@10.40.1.231:27017,10.40.1.232:27017,10.40.1.233:27017/graylog2
# Increase this value according to the maximum connections your MongoDB server can handle from a single client
# if you encounter MongoDB connection problems.
mongodb_max_connections = 1000
# Number of threads allowed to be blocked by MongoDB connections multiplier. Default: 5
# If mongodb_max_connections is 100, and mongodb_threads_allowed_to_block_multiplier is 5,
# then 500 threads can block. More than that and an exception will be thrown.
# http://api.mongodb.com/java/current/com/mongodb/MongoOptions.html#threadsAllowedToBlockForConnectionMultiplier
mongodb_threads_allowed_to_block_multiplier = 5
# Drools Rule File (Use to rewrite incoming log messages)
# See: http://docs.graylog.org/en/2.1/pages/drools.html
#rules_file = /etc/graylog/server/rules.drl
# Email transport
#transport_email_enabled = false
#transport_email_hostname = mail.example.com
#transport_email_port = 587
#transport_email_use_auth = true
#transport_email_use_tls = true
#transport_email_use_ssl = true
#transport_email_auth_username = you@example.com
#transport_email_auth_password = secret
#transport_email_subject_prefix = [graylog]
#transport_email_from_email = graylog@example.com
# Specify and uncomment this if you want to include links to the stream in your stream alert mails.
# This should define the fully qualified base url to your web interface exactly the same way as it is accessed by your users.
#transport_email_web_interface_url = https://graylog.example.com
# The default connect timeout for outgoing HTTP connections.
# Values must be a positive duration (and between 1 and 2147483647 when converted to milliseconds).
# Default: 5s
#http_connect_timeout = 5s
# The default read timeout for outgoing HTTP connections.
# Values must be a positive duration (and between 1 and 2147483647 when converted to milliseconds).
# Default: 10s
#http_read_timeout = 10s
# The default write timeout for outgoing HTTP connections.
# Values must be a positive duration (and between 1 and 2147483647 when converted to milliseconds).
# Default: 10s
#http_write_timeout = 10s
# HTTP proxy for outgoing HTTP connections
#http_proxy_uri =
# Disable the optimization of Elasticsearch indices after index cycling. This may take some load from Elasticsearch
# on heavily used systems with large indices, but it will decrease search performance. The default is to optimize
# cycled indices.
#
# ATTENTION: These settings have been moved to the database in Graylog 2.2.0. When you upgrade, make sure to set these
#            to your previous settings so they will be migrated to the database!
#disable_index_optimization = true
# Optimize the index down to <= index_optimization_max_num_segments. A higher number may take some load from Elasticsearch
# on heavily used systems with large indices, but it will decrease search performance. The default is 1.
#
# ATTENTION: These settings have been moved to the database in Graylog 2.2.0. When you upgrade, make sure to set these
#            to your previous settings so they will be migrated to the database!
#index_optimization_max_num_segments = 1
# The threshold of the garbage collection runs. If GC runs take longer than this threshold, a system notification
# will be generated to warn the administrator about possible problems with the system. Default is 1 second.
#gc_warning_threshold = 1s
# Connection timeout for a configured LDAP server (e. g. ActiveDirectory) in milliseconds.
#ldap_connection_timeout = 2000
# Disable the use of SIGAR for collecting system stats
#disable_sigar = false
# The default cache time for dashboard widgets. (Default: 10 seconds, minimum: 1 second)
#dashboard_widget_default_cache_time = 10s
# Automatically load content packs in "content_packs_dir" on the first start of Graylog.
#content_packs_loader_enabled = true
# The directory which contains content packs which should be loaded on the first start of Graylog.
content_packs_dir = /usr/share/graylog-server/contentpacks
# A comma-separated list of content packs (files in "content_packs_dir") which should be applied on
# the first start of Graylog.
# Default: empty
content_packs_auto_load = grok-patterns.json
# For some cluster-related REST requests, the node must query all other nodes in the cluster. This is the maximum number
# of threads available for this. Increase it, if '/cluster/*' requests take long to complete.
# Should be rest_thread_pool_size * average_cluster_size if you have a high number of concurrent users.
proxied_requests_thread_pool_size = 32

#2

your number of shards is equal to number of servers, which sounds fine, but your setting (number of replicas = 3) defines that you want 4 copies (one original and 3 replicas) of each message. In practice, you could say this means about this: “the elasticsearch cluster can stand sudden loss of 3 servers without losing data” (although you actually can lose data that is still in going through the indexing and copying process). You need at least 4 elasticsearch data nodes to make it work.

This is unrelated to your error message, but just so you will know you will not have a healthy ES cluster with these settings.


(Jochen) #3

It looks like you’re running Graylog 2.3.0-alpha.1 or 2.3.0-alpha.2 and your elasticsearch_version setting is incorrect.

If you want to create a production setup, do not install an alpha version.


(system) #4

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.