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@tristanbob
Created March 7, 2015 19:58
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Default graylog.conf file in OVA 1.0
# If you are running more than one instances of graylog-server you have to select one of these
# instances as master. The master will perform some periodical tasks that non-masters won't perform.
is_master = true
# The auto-generated node ID will be stored in this file and read after restarts. It is a good idea
# to use an absolute file path here if you are starting graylog-server from init scripts or similar.
node_id_file = /var/opt/graylog/graylog-server-node-id
# You MUST set a secret to secure/pepper the stored user passwords here. Use at least 64 characters.
# Generate one by using for example: pwgen -N 1 -s 96
password_secret =
# the default root user is named 'admin'
root_username = admin
# You MUST specify a hash password for the root user (which you only need to initially set up the
# system and in case you lose connectivity to your authentication backend)
# This password cannot be changed using the API or via the web interface. If you need to change it,
# modify it in this file.
# Create one by using for example: echo -n yourpassword | shasum -a 256
# and put the resulting hash value into the following line
root_password_sha2 =
# The time zone setting of the root user.
# Default is UTC
root_timezone =
# Set plugin directory here (relative or absolute)
plugin_dir = /opt/graylog/plugin
# REST API listen URI. Must be reachable by other graylog-server nodes if you run a cluster.
rest_listen_uri = http://0.0.0.0:12900/
# REST API transport address. Defaults to the value of rest_listen_uri. Exception: If rest_listen_uri
# is set to a wildcard IP address (0.0.0.0) the first non-loopback IPv4 system address is used.
# This will be promoted in the cluster discovery APIs and other nodes may try to connect on this
# address. (see rest_listen_uri)
#rest_transport_uri = http://192.168.1.1:12900/
# Enable CORS headers for REST api. This is necessary for JS-clients accessing the server directly.
# If these are disabled, modern browsers will not be able to retrieve resources from the server.
# This is disabled by default. Uncomment the next line to enable it.
#rest_enable_cors = true
# Enable GZIP support for REST api. This compresses API responses and therefore helps to reduce
# overall round trip times. This is disabled by default. Uncomment the next line to enable it.
#rest_enable_gzip = true
# Embedded Elasticsearch configuration file
# pay attention to the working directory of the server, maybe use an absolute path here
#elasticsearch_config_file = /etc/graylog-elasticsearch.yml
# (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.
elasticsearch_max_docs_per_index = 20000000
# Disable message retention on this node, i. e. disable Elasticsearch index rotation.
#no_retention = false
# How many indices do you want to keep?
# elasticsearch_max_number_of_indices*elasticsearch_max_docs_per_index=total number of messages in your setup
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.
retention_strategy = delete
# How many Elasticsearch shards and replicas should be used per index? Note that this only applies to newly created indices.
elasticsearch_shards = 4
elasticsearch_replicas = 1
# Prefix for all Elasticsearch indices and index aliases managed by Graylog.
elasticsearch_index_prefix = graylog
# 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://graylog2.org/resources/documentation/general/queries
allow_leading_wildcard_searches = true
# 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
# settings to be passed to elasticsearch's client (overriding those in the provided elasticsearch_config_file)
# all these
# this must be the same as for your Elasticsearch cluster
#elasticsearch_cluster_name = graylog2
# you could also leave this out, but makes it easier to identify the graylog client instance
#elasticsearch_node_name = graylog-server
# we don't want the graylog server to store any data, or be master node
#elasticsearch_node_master = false
#elasticsearch_node_data = false
# use a different port if you run multiple Elasticsearch nodes on one machine
#elasticsearch_transport_tcp_port = 9350
# we don't need to run the embedded HTTP server here
#elasticsearch_http_enabled = false
#elasticsearch_discovery_zen_ping_multicast_enabled = false
elasticsearch_discovery_zen_ping_unicast_hosts =
# Change the following setting if you are running into problems with timeouts during Elasticsearch cluster discovery.
# The setting is specified in milliseconds, the default is 5000ms (5 seconds).
# elasticsearch_cluster_discovery_timeout = 5000
# the following settings allow to change the bind addresses for the Elasticsearch client in graylog
# these settings are empty by default, letting Elasticsearch choose automatically,
# override them here or in the 'elasticsearch_config_file' if you need to bind to a special address
# refer to http://www.elasticsearch.org/guide/en/elasticsearch/reference/1.3/modules-network.html
# for special values here
# elasticsearch_network_host =
# elasticsearch_network_bind_host =
# elasticsearch_network_publish_host =
# The total amount of time discovery will look for other Elasticsearch nodes in the cluster
# before giving up and declaring the current node master.
#elasticsearch_discovery_initial_state_timeout = 3s
# 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: http://www.elasticsearch.org/guide/reference/index-modules/analysis/
# Note that this setting only takes effect on newly created indices.
elasticsearch_analyzer = standard
# 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 = 25
# 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
# 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.
# Start server with --statistics flag to see buffer utilization.
# Must be a power of 2. (512, 1024, 2048, ...)
ring_size = 1024
# EXPERIMENTAL: Dead Letters
# Every failed indexing attempt is logged by default and made visible in the web-interface. You can enable
# the experimental dead letters feature to write every message that was not successfully indexed into the
# MongoDB "dead_letters" collection to make sure that you never lose a message. The actual writing of dead
# letter should work fine already but it is not heavily tested yet and will get more features in future
# releases.
dead_letters_enabled = false
# 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
# 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
# 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. This setting is specified in milliseconds.
# 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 Configuration
mongodb_useauth = false
#mongodb_user = grayloguser
#mongodb_password = 123
mongodb_host = 127.0.0.1
#mongodb_replica_set = localhost:27017,localhost:27018,localhost:27019
mongodb_database = graylog
mongodb_port = 27017
# Raise this according to the maximum connections your MongoDB server can handle if you encounter MongoDB connection problems.
mongodb_max_connections = 100
# 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.org/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://graylog2.org/resources/documentation/general/rewriting
#rules_file = /etc/graylog.drl
# Email transport
transport_email_enabled = true
transport_email_hostname =
transport_email_port = 587
transport_email_use_auth = false
transport_email_use_tls = true
transport_email_use_ssl = true
transport_email_auth_username =
transport_email_auth_password =
transport_email_subject_prefix = [graylog]
transport_email_from_email = graylog@graylog
# 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
# HTTP proxy for outgoing HTTP calls
#http_proxy_uri =
# Enable the disk based message journal.
message_journal_enabled = true
message_journal_dir = /var/opt/graylog/data/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
# When more messages are coming in as we can process, incoming messages will be cached in memory until
# they are ready to be processed. Per default this data structure is unbounded, so in situations of
# constant high load, it will grow endlessly until all allocatable memory has been consumed and the
# process dies.
# To prevent this, the next setting allows you to define an upper bound for this memory cache, if the
# number of messages in the cache has reached this limit, incoming messages will be dropped until it
# has shrunk again.
#
# The default is 0, which means no upper bound.
#
#input_cache_max_size = 0
# Connection timeout for a configured LDAP server (e. g. ActiveDirectory) in milliseconds.
#ldap_connection_timeout = 2000
# Version checks settings. All timeouts are in milliseconds.
#versionchecks = true
#versionchecks_uri = http://versioncheck.torch.sh/check
#versionchecks_connection_request_timeout = 10000
#versionchecks_connect_timeout = 10000
#versionchecks_socket_timeout = 10000
# https://github.com/bazhenov/groovy-shell-server
#groovy_shell_enable = false
#groovy_shell_port = 6789
# Enable collection of Graylog-related metrics into MongoDB
#enable_metrics_collection = false
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