We are using Logstash 2.3 .1 and find in the documentation that there are only two levels of log (from logstash itself): --verbose and --debug.
Is there any other level we can set which is undocumented perhaps? I find both verbosity quite high and would like something equivalent of "WARN", "INFO", "DEBUG", "TRACE" like Elasticsearch, and I would run my production system at "WARN".
Please update the documentation if you can for a future release that default is equivalent to WARN in Elasticsearch. The wording is a bit confusing right now (--verbose means less-verbose...)
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