Tomás Fernández Löbbe created SOLR-5399:
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Summary: Improve DebugComponent for distributed requests
Key: SOLR-5399
URL: https://issues.apache.org/jira/browse/SOLR-5399
Project: Solr
Issue Type: Improvement
Affects Versions: 5.0
Reporter: Tomás Fernández Löbbe
I'm working on extending the DebugComponent for adding some useful information
to be able to track distributed requests better. I'm adding two different
things, first, the request can generate a "request ID" that will be printed in
the logs for the main query and all the different internal requests to the
different shards. This should make it easier to find the different parts of a
single user request in the logs. It would also add the "purpose" of each
internal request to the logs, like: RequestPurpose=GET_FIELDS,GET_DEBUG or
RequestPurpose=GET_TOP_IDS.
Also, I'm adding a "track" section to the debug info where to add information
about the different phases of the distributed request (right now, I'm only
including QTime, but could eventually include more information) like:
{code:xml}
<lst name="debug">
<lst name="track">
<lst name="EXECUTE_QUERY">
<str name="localhost:8985/solr">QTime: 10</str>
<str name="localhost:8984/solr">QTime: 25</str>
</lst>
<lst name="GET_FIELDS">
<str name="localhost:8985/solr">QTime: 1</str>
</lst>
</lst>
</lst>
{code}
To get this, debugQuery must be set to true, or debug must include
"debug=track". This information is only added to distributed requests. I would
like to get feedback on this.
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