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Seemingly out of the blue I'm getting this response to formerly working Druid queries. My guess is this isn't specific to Druid, but I can't seem to figure it out:

{
  "error" : "No content to map due to end-of-input\n at [Source: [B@2862fe6e; line: 1, column: 1]"
}
Elijah
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1 Answers1

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This error means that query send to druid is empty.

Easiest way to make this error is by executing query in wrong directory.

Directory structure:

/druid
    /config
    /examples
        /wikipedia
  1. You have created query in directory /druid/examples/wikipedia
  2. You have executed query in directory /druid/examples/wikipedia (it works)
  3. You have went to /druid/config to change some configuration
  4. You have executed old command using history feature of your shell (it doesn't work)
Marek Skórkowski
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