When importing Prometheus metric data into Splunk, the following error is output.
(Importing is performed using 'Prometheus Metrics for Splunk')
/opt/splunk/var/log/splunk/splunkd.log
WARN PipelineCpuUsageTracker [1627 parsing] - No indexkey available chan=source::prometheusrw:sourcetype::prometheusrw:host::splunk-hf-75869c4964-phm44 timetook=1 msec.
WARN TcpOutputProc [9736 indexerPipe] - Pipeline data does not have indexKey. [_path] = /opt/splunk/etc/apps/modinput_prometheus/linux_x86_64/bin/prometheusrw\n[_raw] = \n[_meta] = punct::\n[_stmid] = 3CUUsSnja9PAAB.B\n[MetaData:Source] = source::prometheusrw\n[MetaData:Host] = host::splunk-hf-6448d7ffdb-ltzbr\n[MetaData:Sourcetype] = sourcetype::prometheusrw\n[_done] = _done\n[_linebreaker] = _linebreaker\n[_charSet] = UTF-8\n[_conf] = source::prometheusrw|host::splunk-hf-6448d7ffdb-ltzbr|prometheusrw|2\n[_channel] = 2\n
Please tell me the cause of the error and how to deal with it.