Shows status of buckets per indexer host, when they rolled from warm to cold, and cold to frozen. Gives a timechart and table of each, as well as detailed bucket names per index & host.
<form>
<label>Bucket Status</label>
<fieldset submitButton="false">
<input type="time" token="field1">
<label></label>
<default>
<earliest>-24h@h</earliest>
<latest>now</latest>
</default>
</input>
<input type="multiselect" token="hostpicker" searchWhenChanged="true">
<label>Which Host</label>
<choice value="*">All</choice>
<default>*</default>
<initialValue>*</initialValue>
<fieldForLabel>host</fieldForLabel>
<fieldForValue>host</fieldForValue>
<search>
<query>index=_internal sourcetype=splunkd component=BucketMover warm_to_cold idx!="_i*" idx!="_a*" Role=Indexer
| stats count by host
| fields - count</query>
<earliest>-24h@h</earliest>
<latest>now</latest>
</search>
<delimiter> OR host=</delimiter>
</input>
<input type="multiselect" token="idx_picker" searchWhenChanged="true">
<label>Which Index</label>
<choice value="*">All</choice>
<default>*</default>
<initialValue>*</initialValue>
<fieldForLabel>idx_name</fieldForLabel>
<fieldForValue>idx_name</fieldForValue>
<search>
<query>index=_internal sourcetype=splunkd component=BucketMover "*starting warm_to_cold*" OR "*freeze succeeded*"
| rex field=event_message "indexes\/(?<idx_name>.+?(?=\/))"
| stats count by idx_name
| fields - count</query>
<earliest>-24h@h</earliest>
<latest>now</latest>
</search>
<delimiter> OR idx_name=</delimiter>
</input>
</fieldset>
<row>
<panel>
<title>Warm to Cold Timechart</title>
<chart>
<search>
<query>index=_internal sourcetype=splunkd component=BucketMover "*starting warm_to_cold*" host=$hostpicker$
| rex field=event_message "indexes\/(?<idx_name>.+?(?=\/))"
| search idx_name=$idx_picker$ NOT idx_name="_*"
| timechart count by idx_name</query>
<earliest>$field1.earliest$</earliest>
<latest>$field1.latest$</latest>
<sampleRatio>1</sampleRatio>
</search>
<option name="charting.axisLabelsX.majorLabelStyle.overflowMode">ellipsisNone</option>
<option name="charting.axisLabelsX.majorLabelStyle.rotation">0</option>
<option name="charting.axisTitleX.visibility">visible</option>
<option name="charting.axisTitleY.visibility">visible</option>
<option name="charting.axisTitleY2.visibility">visible</option>
<option name="charting.axisX.abbreviation">none</option>
<option name="charting.axisX.scale">linear</option>
<option name="charting.axisY.abbreviation">none</option>
<option name="charting.axisY.scale">log</option>
<option name="charting.axisY2.abbreviation">none</option>
<option name="charting.axisY2.enabled">0</option>
<option name="charting.axisY2.scale">inherit</option>
<option name="charting.chart">line</option>
<option name="charting.chart.bubbleMaximumSize">50</option>
<option name="charting.chart.bubbleMinimumSize">10</option>
<option name="charting.chart.bubbleSizeBy">area</option>
<option name="charting.chart.nullValueMode">gaps</option>
<option name="charting.chart.showDataLabels">none</option>
<option name="charting.chart.sliceCollapsingThreshold">0.01</option>
<option name="charting.chart.stackMode">default</option>
<option name="charting.chart.style">shiny</option>
<option name="charting.drilldown">none</option>
<option name="charting.layout.splitSeries">0</option>
<option name="charting.layout.splitSeries.allowIndependentYRanges">0</option>
<option name="charting.legend.labelStyle.overflowMode">ellipsisMiddle</option>
<option name="charting.legend.mode">standard</option>
<option name="charting.legend.placement">right</option>
<option name="charting.lineWidth">2</option>
<option name="refresh.display">progressbar</option>
<option name="trellis.enabled">0</option>
<option name="trellis.scales.shared">1</option>
<option name="trellis.size">medium</option>
</chart>
</panel>
<panel>
<title>Cold to Frozen Timechart</title>
<chart>
<search>
<query>index=_internal sourcetype=splunkd component=BucketMover "*will attempt to freeze*" host=$hostpicker$
| rex field=event_message "indexes\/(?<idx_name>.+?(?=\/))"
| search idx_name=$idx_picker$ NOT idx_name="_*"
| timechart count by idx_name</query>
<earliest>$field1.earliest$</earliest>
<latest>$field1.latest$</latest>
<sampleRatio>1</sampleRatio>
</search>
<option name="charting.axisLabelsX.majorLabelStyle.overflowMode">ellipsisNone</option>
<option name="charting.axisLabelsX.majorLabelStyle.rotation">0</option>
<option name="charting.axisTitleX.visibility">visible</option>
<option name="charting.axisTitleY.visibility">visible</option>
<option name="charting.axisTitleY2.visibility">visible</option>
<option name="charting.axisX.abbreviation">none</option>
<option name="charting.axisX.scale">linear</option>
<option name="charting.axisY.abbreviation">none</option>
<option name="charting.axisY.scale">linear</option>
<option name="charting.axisY2.abbreviation">none</option>
<option name="charting.axisY2.enabled">0</option>
<option name="charting.axisY2.scale">inherit</option>
<option name="charting.chart">line</option>
<option name="charting.chart.bubbleMaximumSize">50</option>
<option name="charting.chart.bubbleMinimumSize">10</option>
<option name="charting.chart.bubbleSizeBy">area</option>
<option name="charting.chart.nullValueMode">gaps</option>
<option name="charting.chart.showDataLabels">none</option>
<option name="charting.chart.sliceCollapsingThreshold">0.01</option>
<option name="charting.chart.stackMode">default</option>
<option name="charting.chart.style">shiny</option>
<option name="charting.drilldown">none</option>
<option name="charting.layout.splitSeries">0</option>
<option name="charting.layout.splitSeries.allowIndependentYRanges">0</option>
<option name="charting.legend.labelStyle.overflowMode">ellipsisMiddle</option>
<option name="charting.legend.mode">standard</option>
<option name="charting.legend.placement">right</option>
<option name="charting.lineWidth">2</option>
<option name="refresh.display">progressbar</option>
<option name="trellis.enabled">0</option>
<option name="trellis.scales.shared">1</option>
<option name="trellis.size">medium</option>
</chart>
</panel>
</row>
<row>
<panel>
<title>Buckets moving from warm to cold</title>
<table>
<search>
<query>index=_internal sourcetype=splunkd component=BucketMover warm_to_cold idx!="_i*" idx!="_a*" host=$hostpicker$
| rex field=event_message "indexes\/(?<idx_name>.+?(?=\/))"
| search idx_name=$idx_picker$ NOT idx_name="_*"
| stats count by idx_name
| sort - count</query>
<earliest>$field1.earliest$</earliest>
<latest>$field1.latest$</latest>
<sampleRatio>1</sampleRatio>
</search>
<option name="count">10</option>
<option name="dataOverlayMode">none</option>
<option name="drilldown">none</option>
<option name="percentagesRow">false</option>
<option name="refresh.display">progressbar</option>
<option name="rowNumbers">false</option>
<option name="totalsRow">false</option>
<option name="wrap">true</option>
</table>
</panel>
<panel>
<title>Buckets rolling to Frozen</title>
<table>
<search>
<query>index=_internal sourcetype=splunkd component=BucketMover candidate!="*_i*" candidate!="*_a*" host=$hostpicker$ "*will attempt to freeze*"
| rex field=event_message "indexes\/(?<idx_name>.+?(?=\/))"
| search idx_name=$idx_picker$ NOT idx_name="_*"
| stats count by idx_name
| sort - count</query>
<earliest>$field1.earliest$</earliest>
<latest>$field1.latest$</latest>
<sampleRatio>1</sampleRatio>
</search>
<option name="count">10</option>
<option name="dataOverlayMode">none</option>
<option name="drilldown">none</option>
<option name="percentagesRow">false</option>
<option name="refresh.display">progressbar</option>
<option name="rowNumbers">false</option>
<option name="totalsRow">false</option>
<option name="wrap">true</option>
</table>
</panel>
</row>
<row>
<panel>
<title>Index, Host and Bucket</title>
<table>
<title>cold to frozen uses bkt, warm to cold uses bucket</title>
<search>
<query>index=_internal sourcetype=splunkd component=BucketMover "*starting warm_to_cold*" OR "*freeze succeeded*" host=$hostpicker$
| rex field=event_message "indexes\/(?<idx_name>.+?(?=\/))"
| fillnull value=NULL
| search idx_name=$idx_picker$ NOT idx_name="_*"
| eval Message=if(like(event_message, "%warm_to_cold%"), "Warm to Cold", "Cold to Frozen")
| stats count by idx_name bucket bkt host Message| fields - count</query>
<earliest>$field1.earliest$</earliest>
<latest>$field1.latest$</latest>
<sampleRatio>1</sampleRatio>
</search>
<option name="count">25</option>
<option name="dataOverlayMode">none</option>
<option name="drilldown">none</option>
<option name="percentagesRow">false</option>
<option name="rowNumbers">false</option>
<option name="totalsRow">false</option>
<option name="wrap">true</option>
</table>
</panel>
</row>
</form>

I am not getting the rex to work at all.
ever make it work or still broke?
Change this line from:
| rex field=event_message “indexes\/(?<idx_name>.+?(?=\/))”
to:
| rex field=event_message “(?<idx_name>[^\/]+)\/(cold)?db”