I am trying to log data from Varnish, which can be coerced into producing a JSON log file. When I import this using Filebeat, I'm getting a json_error of Error decoding JSON: invalid character '}' looking for beginning of object key string An example of a log line is: {"message": {"remoteHost": …

I discovered I was using a bad @timestamp format, so I've fixed it here. Apologies for the insane amount of quote escaping, that's to do with how VarnishNCSA is configured :slight_smile: format="\"{\\\"remoteHost\\\": \\\"%h\\\",\\\"remoteUser\\\": \\\"%u\\\",\\\"@timestamp\\\": \\\"%{%Y-%m-%dT%TZ}…

ruflin (ruflin) March 1, 2017, 8:09am 4

Glad you found a solution. Does this also solve Correct @timestamp format for JSON ingress ?

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Trying to work out the expected JSON format for Varnish logging