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    Please Note This forum exists for community support for the Mango product family and the Radix IoT Platform. Although Radix IoT employees participate in this forum from time to time, there is no guarantee of a response to anything posted here, nor can Radix IoT, LLC guarantee the accuracy of any information expressed or conveyed. Specific project questions from customers with active support contracts are asked to send requests to support@radixiot.com.

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    [IAS TSDB Backdate Poster] - The backdate poster ran without inserting, , queue size: 73

    Mango feedback
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    • MattFox
      MattFox last edited by MattFox

      What does this mean. Does it mean I haven't got data going in???
      This all relates to the data file data sources

      Do not follow where the path may lead; go instead where there is no path.
      And leave a trail - Muriel Strode

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      • cmusselm
        cmusselm last edited by

        Hey, Matt,

        Did you ever get any insight into this? I'm seeing the same thing in my ma.log, although my queue size is only 2.

        Thanks,
        Chad

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        • MattFox
          MattFox @cmusselm last edited by

          @cmusselm no unfortunately. Things are pretty dead in the forums now and without paid support it's all pretty dead in the water.

          Do not follow where the path may lead; go instead where there is no path.
          And leave a trail - Muriel Strode

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          • Jared Wiltshire
            Jared Wiltshire last edited by

            @MattFox What it means is this:
            The mangoNoSql module (IasTsdb) is trying to insert backdated values (that is values with timestamps which are older than those already contained in the series and saved to disk)
            This is an expensive operation as it must rewrite the entire shard.
            The TSDB queues the values in memory and tries to write them all out to the shard asynchronously.
            Sometimes when this "backdate poster" thread tries to write the backdated values out the shard is already locked (due to a data source writing current values to the shard), resulting in messages like this.

            Developer at Radix IoT

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