Here's how the visualization and corresponding data source are defined. I don't see a "default" in the code. "visualizations": { "viz_chart_1": { "type": "splunk.line", "dataSources": { "primary": "ds_search_1" }, "showProgressBar": true, "title": "nodesim instances ram usage (ps)", "options": { "yAxisAbbreviation": "auto", "y2AxisAbbreviation": "off", "showRoundedY2AxisLabels": false, "legendTruncation": "ellipsisEnd", "showY2MajorGridLines": true, "yAxisMajorTickInterval": 1, "yAxisTitleText": "Megabytes", "nullValueDisplay": "connect", "dataValuesDisplay": "off", "legendDisplay": "bottom" }, "context": {} }, "dataSources": { "ds_search_1": { "type": "ds.search", "options": { "query": "index=os (sourcetype=ps OR sourcetype=vmstat) (host=scale-sysperf-95x-install-18* ) (COMMAND=CURRENT* OR COMMAND=nodesim)\n| rename memTotalMB as physicalMB\n| appendpipe [ where sourcetype==\"vmstat\" | rename memUsedMB as physicalMB | eval App=\"Physical-Used\" | fields physicalMB]\n| stats count sum(RSZ_KB) as RSZ_KB_sum max(physicalMB) as physicalMB by _time host COMMAND\n| timechart span=1m avg(eval(if(isnull(physicalMB),RSZ_KB_sum/1000,physicalMB))) as AppRSZ_MB by host", "queryParameters": { "earliest": 0, "latest": "" } } },
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