Logstash wont start when adding a match statement in a grok block

mhyousefi · August 27, 2018, 9:43am

Hey guys, so in my logstash.conf, I have the following:

input {
  beats {
    port => "5044"
  }
}

filter {
 grok {
   patterns_dir => ["./patterns"]
   match => { "message" => "%{WORD:event_type}\t%{NUMBER:server_time}\t%{NUMBER:market_time}\t%{WORD:instrument}\t%{C_NUMBER:last_price}\t%{C_NUMBER:trade_quantity}\t%{C_NUMBER:bid_price}\t%{C_NUMBER:bid_quantity}\t%{C_NUMBER:ask_price}\t%{C_NUMBER:ask_quantity}\t%{GREEDYDATA:flags}\t%{GREEDYDATA:additional_infos}"}
 }

 # ... and other stuff here...
}

output {
  elasticsearch {
    hosts => [ "localhost:9200" ]
    index => "%{[@metadata][beat]}"
  }
}

Logstash works fine if I comment the match => line. But with it, it does not start, meaning nothing shows up when I run netstat -na | grep 5044 in the container. It is simply not listening on 5044.

What is wrong with the match => line?? I appreciate your help.

mhyousefi · August 27, 2018, 9:45am

Oh, and when I try to run Logstash manually by /opt/logstash/bin/logstash --path.data /tmp/logstash/data -f /etc/logstash/conf.d/filebeat-config.conf, I get the following:

Sending Logstash's logs to /opt/logstash/logs which is now configured via log4j2.properties
[2018-08-27T09:35:25,883][INFO ][logstash.setting.writabledirectory] Creating directory {:setting=>"path.queue", :path=>"/tmp/logstash/data/queue"}
[2018-08-27T09:35:25,887][INFO ][logstash.setting.writabledirectory] Creating directory {:setting=>"path.dead_letter_queue", :path=>"/tmp/logstash/data/dead_letter_queue"}
[2018-08-27T09:35:26,177][WARN ][logstash.config.source.multilocal] Ignoring the 'pipelines.yml' file because modules or command line options are specified
[2018-08-27T09:35:26,213][INFO ][logstash.agent           ] No persistent UUID file found. Generating new UUID {:uuid=>"5abcdba2-475f-46a9-b192-a343ca15ce89", :path=>"/tmp/logstash/data/uuid"}
[2018-08-27T09:35:26,727][INFO ][logstash.runner          ] Starting Logstash {"logstash.version"=>"6.3.2"}
[2018-08-27T09:35:29,016][INFO ][logstash.pipeline        ] Starting pipeline {:pipeline_id=>"main", "pipeline.workers"=>8, "pipeline.batch.size"=>125, "pipeline.batch.delay"=>50}
[2018-08-27T09:35:29,316][INFO ][logstash.outputs.elasticsearch] Elasticsearch pool URLs updated {:changes=>{:removed=>[], :added=>[http://localhost:9200/]}}
[2018-08-27T09:35:29,325][INFO ][logstash.outputs.elasticsearch] Running health check to see if an Elasticsearch connection is working {:healthcheck_url=>http://localhost:9200/, :path=>"/"}
[2018-08-27T09:35:29,467][WARN ][logstash.outputs.elasticsearch] Restored connection to ES instance {:url=>"http://localhost:9200/"}
[2018-08-27T09:35:29,510][INFO ][logstash.outputs.elasticsearch] ES Output version determined {:es_version=>6}
[2018-08-27T09:35:29,513][WARN ][logstash.outputs.elasticsearch] Detected a 6.x and above cluster: the `type` event field won't be used to determine the document _type {:es_version=>6}
[2018-08-27T09:35:29,533][INFO ][logstash.outputs.elasticsearch] New Elasticsearch output {:class=>"LogStash::Outputs::ElasticSearch", :hosts=>["//localhost:9200"]}
[2018-08-27T09:35:29,549][INFO ][logstash.outputs.elasticsearch] Using mapping template from {:path=>nil}
[2018-08-27T09:35:29,565][INFO ][logstash.outputs.elasticsearch] Attempting to install template {:manage_template=>{"template"=>"logstash-*", "version"=>60001, "settings"=>{"index.refresh_interval"=>"5s"}, "mappings"=>{"_default_"=>{"dynamic_templates"=>[{"message_field"=>{"path_match"=>"message", "match_mapping_type"=>"string", "mapping"=>{"type"=>"text", "norms"=>false}}}, {"string_fields"=>{"match"=>"*", "match_mapping_type"=>"string", "mapping"=>{"type"=>"text", "norms"=>false, "fields"=>{"keyword"=>{"type"=>"keyword", "ignore_above"=>256}}}}}], "properties"=>{"@timestamp"=>{"type"=>"date"}, "@version"=>{"type"=>"keyword"}, "geoip"=>{"dynamic"=>true, "properties"=>{"ip"=>{"type"=>"ip"}, "location"=>{"type"=>"geo_point"}, "latitude"=>{"type"=>"half_float"}, "longitude"=>{"type"=>"half_float"}}}}}}}}
[2018-08-27T09:35:29,689][ERROR][logstash.pipeline        ] Error registering plugin {:pipeline_id=>"main", :plugin=>"#<LogStash::FilterDelegator:0x68bd7527 @metric_events_out=org.jruby.proxy.org.logstash.instrument.metrics.counter.LongCounter$Proxy2 -  name: out value:0, @metric_events_in=org.jruby.proxy.org.logstash.instrument.metrics.counter.LongCounter$Proxy2 -  name: in value:0, @metric_events_time=org.jruby.proxy.org.logstash.instrument.metrics.counter.LongCounter$Proxy2 -  name: duration_in_millis value:0, @id=\"e473071da674c7efab2a8ee71c9e682afff58b8a4725d076964bc668f3b2c724\", @klass=LogStash::Filters::Grok, @metric_events=#<LogStash::Instrument::NamespacedMetric:0x5867faed @metric=#<LogStash::Instrument::Metric:0x61ef1454 @collector=#<LogStash::Instrument::Collector:0x51306706 @agent=nil, @metric_store=#<LogStash::Instrument::MetricStore:0x5227344a @store=#<Concurrent::Map:0x00000000000fb4 entries=2 default_proc=nil>, @structured_lookup_mutex=#<Mutex:0x7efeb9ea>, @fast_lookup=#<Concurrent::Map:0x00000000000fb8 entries=75 default_proc=nil>>>>, @namespace_name=[:stats, :pipelines, :main, :plugins, :filters, :e473071da674c7efab2a8ee71c9e682afff58b8a4725d076964bc668f3b2c724, :events]>, @filter=<LogStash::Filters::Grok patterns_dir=>[\"./patterns\"], match=>{\"message\"=>\"%{WORD:event_type}\\\\t%{NUMBER:server_time}\\\\t%{NUMBER:market_time}\\\\t%{WORD:instrument}\\\\t%{C_NUMBER:last_price}\\\\t%{C_NUMBER:trade_quantity}\\\\t%{C_NUMBER:bid_price}\\\\t%{C_NUMBER:bid_quantity}\\\\t%{C_NUMBER:ask_price}\\\\t%{C_NUMBER:ask_quantity}\\\\t%{GREEDYDATA:flags}\\\\t%{GREEDYDATA:additional_infos}\"}, id=>\"e473071da674c7efab2a8ee71c9e682afff58b8a4725d076964bc668f3b2c724\", enable_metric=>true, periodic_flush=>false, patterns_files_glob=>\"*\", break_on_match=>true, named_captures_only=>true, keep_empty_captures=>false, tag_on_failure=>[\"_grokparsefailure\"], timeout_millis=>30000, tag_on_timeout=>\"_groktimeout\">>", :error=>"pattern %{C_NUMBER:last_price} not defined", :thread=>"#<Thread:0x20b6525c run>"}
[2018-08-27T09:35:29,699][ERROR][logstash.pipeline        ] Pipeline aborted due to error {:pipeline_id=>"main", :exception=>#<Grok::PatternError: pattern %{C_NUMBER:last_price} not defined>, :backtrace=>["/opt/logstash/vendor/bundle/jruby/2.3.0/gems/jls-grok-0.11.5/lib/grok-pure.rb:123:in `block in compile'", "org/jruby/RubyKernel.java:1292:in `loop'", "/opt/logstash/vendor/bundle/jruby/2.3.0/gems/jls-grok-0.11.5/lib/grok-pure.rb:93:in `compile'", "/opt/logstash/vendor/bundle/jruby/2.3.0/gems/logstash-filter-grok-4.0.3/lib/logstash/filters/grok.rb:281:in `block in register'", "org/jruby/RubyArray.java:1734:in `each'", "/opt/logstash/vendor/bundle/jruby/2.3.0/gems/logstash-filter-grok-4.0.3/lib/logstash/filters/grok.rb:275:in `block in register'", "org/jruby/RubyHash.java:1343:in `each'", "/opt/logstash/vendor/bundle/jruby/2.3.0/gems/logstash-filter-grok-4.0.3/lib/logstash/filters/grok.rb:270:in `register'", "/opt/logstash/logstash-core/lib/logstash/pipeline.rb:340:in `register_plugin'", "/opt/logstash/logstash-core/lib/logstash/pipeline.rb:351:in `block in register_plugins'", "org/jruby/RubyArray.java:1734:in `each'", "/opt/logstash/logstash-core/lib/logstash/pipeline.rb:351:in `register_plugins'", "/opt/logstash/logstash-core/lib/logstash/pipeline.rb:729:in `maybe_setup_out_plugins'", "/opt/logstash/logstash-core/lib/logstash/pipeline.rb:361:in `start_workers'", "/opt/logstash/logstash-core/lib/logstash/pipeline.rb:288:in `run'", "/opt/logstash/logstash-core/lib/logstash/pipeline.rb:248:in `block in start'"], :thread=>"#<Thread:0x20b6525c run>"}
[2018-08-27T09:35:29,724][ERROR][logstash.agent           ] Failed to execute action {:id=>:main, :action_type=>LogStash::ConvergeResult::FailedAction, :message=>"Could not execute action: PipelineAction::Create<main>, action_result: false", :backtrace=>nil}

mhyousefi · August 27, 2018, 9:55am

Next to my logstash.conf, I have the directory patterns including a file containing the following:

USERNAME [a-zA-Z0-9._-]+
USER %{USERNAME}
INT (?:[+-]?(?:[0-9]+))
BASE10NUM (?<![0-9.+-])(?>[+-]?(?:(?:[0-9]+(?:\.[0-9]+)?)|(?:\.[0-9]+)))
NUMBER (?:%{BASE10NUM})
C_NUMBER (?:[+-]?(?:[(0-9)|(*,@,.)]+))
C_NUMBER2 (?:[+-]?(?:[(0-9)|(*,@,.)|null]+))
BASE16NUM (?<![0-9A-Fa-f])(?:[+-]?(?:0x)?(?:[0-9A-Fa-f]+))
BASE16FLOAT \b(?<![0-9A-Fa-f.])(?:[+-]?(?:0x)?(?:(?:[0-9A-Fa-f]+(?:\.[0-9A-Fa-f]*)?)|(?:\.[0-9A-Fa-f]+)))\b
POSINT \b(?:[1-9][0-9]*)\b
NONNEGINT \b(?:[0-9]+)\b
WORD \b\w+\b
NOTSPACE \S+
SPACE \s*
DATA .*?
GREEDYDATA .*
QUOTEDSTRING (?>(?<!\\)(?>"(?>\\.|[^\\"]+)+"|""|(?>'(?>\\.|[^\\']+)+')|''|(?>(?>\\.|[^\\]+)+`)|``))
UUID [A-Fa-f0-9]{8}-(?:[A-Fa-f0-9]{4}-){3}[A-Fa-f0-9]{12}
MAC (?:%{CISCOMAC}|%{WINDOWSMAC}|%{COMMONMAC})
CISCOMAC (?:(?:[A-Fa-f0-9]{4}\.){2}[A-Fa-f0-9]{4})
WINDOWSMAC (?:(?:[A-Fa-f0-9]{2}-){5}[A-Fa-f0-9]{2})
COMMONMAC (?:(?:[A-Fa-f0-9]{2}:){5}[A-Fa-f0-9]{2})
MONTH \b(?:Jan(?:uary)?|Feb(?:ruary)?|Mar(?:ch)?|Apr(?:il)?|May|Jun(?:e)?|Jul(?:y)?|Aug(?:ust)?|Sep(?:tember)?|Oct(?:ober)?|Nov(?:ember)?|Dec(?:ember)?)\b
MONTHNUM (?:0?[1-9]|1[0-2])
MONTHDAY (?:(?:0[1-9])|(?:[12][0-9])|(?:3[01])|[1-9])
DAY (?:Mon(?:day)?|Tue(?:sday)?|Wed(?:nesday)?|Thu(?:rsday)?|Fri(?:day)?|Sat(?:urday)?|Sun(?:day)?)
YEAR (?>\d\d){1,2}
HOUR (?:2[0123]|[01]?[0-9])
MINUTE (?:[0-5][0-9])
SECOND (?:(?:[0-5][0-9]|60)(?:[:.,][0-9]+)?)
TIME (?!<[0-9])%{HOUR}:%{MINUTE}(?::%{SECOND})(?![0-9])
DATE_US %{MONTHNUM}[/-]%{MONTHDAY}[/-]%{YEAR}
DATE_EU %{MONTHDAY}[./-]%{MONTHNUM}[./-]%{YEAR}
ISO8601_TIMEZONE (?:Z|[+-]%{HOUR}(?::?%{MINUTE}))
ISO8601_SECOND (?:%{SECOND}|60)
TIMESTAMP_ISO8601 %{YEAR}-%{MONTHNUM}-%{MONTHDAY}[T ]%{HOUR}:?%{MINUTE}(?::?%{SECOND})?%{ISO8601_TIMEZONE}?
TIMESTAMP_CUSTOM %{YEAR}-%{MONTHNUM}-%{MONTHDAY}[T ]%{HOUR}:?%{MINUTE}(?::?%{SECOND}.?%{NUMBER})?%{ISO8601_TIMEZONE}?
DATE %{DATE_US}|%{DATE_EU}
DATESTAMP %{DATE}[- ]%{TIME}
TZ (?:[PMCE][SD]T|UTC)
DATESTAMP_RFC822 %{DAY} %{MONTH} %{MONTHDAY} %{YEAR} %{TIME} %{TZ}
DATESTAMP_OTHER %{DAY} %{MONTH} %{MONTHDAY} %{TIME} %{TZ} %{YEAR}

magnusbaeck · August 27, 2018, 10:17am

Don't use a relative path to your pattern directory.

mhyousefi · August 27, 2018, 10:25am

I changed patterns_dir => ["./patterns"] to patterns_dir => ["/etc/logstash/conf.d/patterns"], but still no Logstash process listening on port 5044!

Please note that it is the match line that's making trouble, not the patterns_dir line.

magnusbaeck · August 27, 2018, 11:04am

I changed patterns_dir => ["./patterns"] to patterns_dir => ["/etc/logstash/conf.d/patterns"] , but still no Logstash process listening on port 5044!

Is the error message in the log the same as before?

Please note that it is the match line that's making trouble, not the patterns_dir line.

Yes, the match line is referencing a grok pattern that Logstash didn't find because of the relative path to the patterns directory.

mhyousefi · August 28, 2018, 5:22pm

Actually, your suggestion did resolve the issue! So changing the relative path to an absolute one did it!

system · September 25, 2018, 5:22pm

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Logstash wont start when adding a match statement in a grok block

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