Logstash when started using nohup, it is logging too much resulting in huge size

Elastic Stack Logstash
2

You could change the logging level for the loggers involved (the logger name is show in the log message). For example, to increase the volume of log messages from a file output I use

curl -XPUT 'localhost:9600/_node/logging?pretty' -H 'Content-Type: application/json' -d'
{
    "logger.filewatch.discoverer" : "TRACE",
    "logger.filewatch.observingtail" : "TRACE",
    "logger.filewatch.sincedbcollection" : "TRACE",
    "logger.filewatch.tailmode.handlers.createinitial" : "TRACE",
    "logger.filewatch.tailmode.handlers.grow" : "TRACE",
    "logger.filewatch.tailmode.processor" : "TRACE"
}
'

You could change the default (INFO) level to WARN in a similar way.

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