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Metric Index problem with null values


I am running Splunk Enterprise 8.0.1 monitoring files with a universal forwarder and putting info from csv files into a metric index using logs to metrics through props.conf and transforms.conf. Most of the monitored files are working as expected but one is not showing up in the metric index and I cannot find any errors about it in splunkd.log or metrics.log.

This file occasionally has the last entry empty. Here is an example of the data:

The value in column three is set to be a dimension for the metric data. It is actually a key variable and I need to be able to track it. Does anyone know if the missing value is causing the data not to import into my metric index and if so, how to fix it? Thanks.

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