By default the metrics will only provide details on the top 10 items in a series - this applies to almost all the metrics that are collected. https://docs.splunk.com/Documentation/Splunk/8.1.3/Troubleshooting/Aboutmetricslog The way to address this, is to change the limit applied using the limits.conf file - the following stanza added to a indexer / HF will increase the number of items which are tracked [metrics]
maxseries = 50
interval = 60 This will ensure the top 50 items are included - so you can adjust this to reflect the likely number of sourcetypes if that is the main metric to be tracked The "interval" reference allows you to change the frequency that this data is collected to control the volume of data generated in the log. In the same, the frequency is 60seconds to allow minute by minute tracking - but that may be excessive for some purposes.
... View more