Using latest versions of:
- Ubuntu 20.04-Server mit 4 GB RAM und 2 CPUs
- OpenJDK 11
- Elasticsearch Version: 7.10.0
- Kibana Version: 7.10.0
- Logstash Version: 7.10.0
- Filebeat Version: 7.10.0
$ sudo /usr/share/logstash/bin/logstash -e "input { stdin { } } output { stdout { } }" --path.settings /etc/logstash
OpenJDK 64-Bit Server VM **warning**: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.
**WARNING**: An illegal reflective access operation has occurred
**WARNING**: Illegal reflective access by org.jruby.ext.openssl.SecurityHelper (file:/tmp/jruby-11153/jruby8878062293900151859jopenssl.jar) to field java.security.MessageDigest.provider
**WARNING**: Please consider reporting this to the maintainers of org.jruby.ext.openssl.SecurityHelper
**WARNING**: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
**WARNING**: All illegal access operations will be denied in a future release
Sending Logstash logs to /var/log/logstash which is now configured via log4j2.properties
[2020-11-27T14:11:08,666][INFO ][logstash.runner ] Starting Logstash {"logstash.version"=>"7.10.0", "jruby.version"=>"jruby 9.2.13.0 (2.5.7) 2020-08-03 9a89c94bcc OpenJDK 64-Bit Server VM 11.0.8+10 on 11.0.8+10 +indy +jit [linux-x86_64]"}
[2020-11-27T14:11:09,742][**WARN** ][logstash.config.source.multilocal] Ignoring the 'pipelines.yml' file because modules or command line options are specified
[2020-11-27T14:11:12,208][INFO ][org.reflections.Reflections] Reflections took 44 ms to scan 1 urls, producing 23 keys and 47 values
[2020-11-27T14:11:13,370][INFO ][logstash.javapipeline ][main] Starting pipeline {:pipeline_id=>"main", "pipeline.workers"=>2, "pipeline.batch.size"=>125, "pipeline.batch.delay"=>50, "pipeline.max_inflight"=>250, "pipeline.sources"=>["config string"], :thread=>"#<Thread:0x52fc6e9d run>"}
[2020-11-27T14:11:14,916][INFO ][logstash.javapipeline ][main] Pipeline Java execution initialization time {"seconds"=>1.5}
[2020-11-27T14:11:15,094][INFO ][logstash.javapipeline ][main] Pipeline started {"pipeline.id"=>"main"}
The stdin plugin is now waiting for input:
[2020-11-27T14:11:15,294][INFO ][logstash.agent ] Pipelines running {:count=>1, :running_pipelines=>[:main], :non_running_pipelines=>[]}
[2020-11-27T14:11:15,943][INFO ][logstash.agent ] Successfully started Logstash API endpoint {:port=>9600}
$ sudo /usr/share/logstash/bin/logstash -e "input { stdin { } } output { stdout { } }"
Using bundled JDK: /usr/share/logstash/jdk
OpenJDK 64-Bit Server VM **warning**: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.
**WARNING**: An illegal reflective access operation has occurred
**WARNING**: Illegal reflective access by org.jruby.ext.openssl.SecurityHelper (file:/tmp/jruby-8901/jruby17329055870296577814jopenssl.jar) to field java.security.MessageDigest.provider
**WARNING**: Please consider reporting this to the maintainers of org.jruby.ext.openssl.SecurityHelper
**WARNING**: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
**WARNING**: All illegal access operations will be denied in a future release
**WARNING**: Could not find logstash.yml which is typically located in $LS_HOME/config or /etc/logstash. You can specify the path using --path.settings. Continuing using the defaults
Could not find log4j2 configuration at path /usr/share/logstash/config/log4j2.properties. Using default config which logs errors to the console
[INFO ] 2020-11-27 13:58:22.176 [main] runner - Starting Logstash {"logstash.version"=>"7.10.0", "jruby.version"=>"jruby 9.2.13.0 (2.5.7) 2020-08-03 9a89c94bcc OpenJDK 64-Bit Server VM 11.0.8+10 on 11.0.8+10 +indy +jit [linux-x86_64]"}
[**WARN** ] 2020-11-27 13:58:22.979 [LogStash::Runner] multilocal - Ignoring the 'pipelines.yml' file because modules or command line options are specified
[INFO ] 2020-11-27 13:58:25.711 [Converge PipelineAction::Create<main>] Reflections - Reflections took 71 ms to scan 1 urls, producing 23 keys and 47 values
[INFO ] 2020-11-27 13:58:26.508 [[main]-pipeline-manager] javapipeline - Starting pipeline {:pipeline_id=>"main", "pipeline.workers"=>2, "pipeline.batch.size"=>125, "pipeline.batch.delay"=>50, "pipeline.max_inflight"=>250, "pipeline.sources"=>["config string"], :thread=>"#<Thread:0x58802dbd run>"}
[INFO ] 2020-11-27 13:58:27.827 [[main]-pipeline-manager] javapipeline - Pipeline Java execution initialization time {"seconds"=>1.3}
[INFO ] 2020-11-27 13:58:27.876 [[main]-pipeline-manager] javapipeline - Pipeline started {"pipeline.id"=>"main"}
The stdin plugin is now waiting for input:
[INFO ] 2020-11-27 13:58:28.093 [Agent thread] agent - Pipelines running {:count=>1, :running_pipelines=>[:main], :non_running_pipelines=>[]}
[INFO ] 2020-11-27 13:58:28.398 [Api Webserver] agent - Successfully started Logstash API endpoint {:port=>9600}
How to get rid of these warnings?