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https://issues.apache.org/jira/browse/SOLR-15132?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joel Bernstein updated SOLR-15132:
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Description:
The *nodes* Streaming Expression performs a breadth first graph traversal. This
ticket will add a *window* parameter to allow the nodes expression to include a
window of time in its traversal.
To take advantage of this feature you must index the content with a String
field which is an ISO timestamp truncated at ten seconds. Then the "window"
parameter can be applied to walk the graph within a window prior to a specific
point of time and perform aggregations.
Here is an example using Solr logs to answer the following question: What types
of log activities occurred within a 30 second window prior to a window of slow
queries:
{code}
nodes(facet(logs, q="qtime_s:[5000 TO *]", buckets="time_ten_seconds",
rows="25"),
walk="time_ten_seconds->time_ten_seconds",
window="3",
gather="type_s",
count(*))
{code}
was:
The *nodes* Streaming Expression performs a breadth first graph traversal. This
ticket will add a *window* parameter to allow the nodes expression to include a
window of time in its traversal.
To take advantage of this feature you must index the content with a String
field which is an ISO timestamp truncated at ten seconds. Then the "window"
parameter can be applied to walk the graph within a specific window of time and
perform aggregations.
Here is an example using Solr logs to answer the following question: What types
of log activities occurred within a 30 second window prior to a window of slow
queries:
{code}
nodes(facet(logs, q="qtime_s:[5000 TO *]", buckets="time_ten_seconds",
rows="25"),
walk="time_ten_seconds->time_ten_seconds",
window="3",
gather="type_s",
count(*))
{code}
> Add window paramater to the nodes Streaming Expression
> ------------------------------------------------------
>
> Key: SOLR-15132
> URL: https://issues.apache.org/jira/browse/SOLR-15132
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: streaming expressions
> Reporter: Joel Bernstein
> Priority: Major
>
> The *nodes* Streaming Expression performs a breadth first graph traversal.
> This ticket will add a *window* parameter to allow the nodes expression to
> include a window of time in its traversal.
> To take advantage of this feature you must index the content with a String
> field which is an ISO timestamp truncated at ten seconds. Then the "window"
> parameter can be applied to walk the graph within a window prior to a
> specific point of time and perform aggregations.
> Here is an example using Solr logs to answer the following question: What
> types of log activities occurred within a 30 second window prior to a window
> of slow queries:
> {code}
> nodes(facet(logs, q="qtime_s:[5000 TO *]", buckets="time_ten_seconds",
> rows="25"),
> walk="time_ten_seconds->time_ten_seconds",
> window="3",
> gather="type_s",
> count(*))
> {code}
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