Hi,

We recently upgraded to puppetdb 4.4.

There is query that takes a while to run, 3 or 4 minutes though we are 
unsure of why it is even running.

The query below looks related to some kind of clean up or garbage 
collection however this particular puppetdb node has two relevant 
properties:

* gc-interval is set to 0 and indeed there are no gc events in the logs.
* This particular node only receives /pdb/query requests and no /pdb/cmd 
requests. We have always and still do dedicate nodes to command and query 
traffic by redirection at haproxy level.

What is the action that triggers the query below. 

WITH inactive_nodes AS (SELECT certname FROM certnames WHERE (deactivated 
IS NOT NULL OR expired IS NOT NULL)) SELECT fs.certname AS certnam e, 
fp.name AS name, f.value AS value FROM factsets fs INNER JOIN facts f ON 
fs.id = f.factset_id INNER JOIN fact_paths fp ON f.fact_path_id = fp.id 
INNER JOIN value_types vt ON vt.id = f .value_type_id LEFT JOIN 
environments env ON fs.environment_id = env.id WHERE (fp.depth = 0 AND 
(((((fs.certname) in ( (SELECT fs.certname AS certname FROM factsets fs 
INNER JOIN facts f ON fs.id = f.factset_id INNER JOIN fact_paths fp ON 
f.fact_path_id = fp.id INNER JOIN value_types vt ON f.value_type_id = vt.id 
LEFT JOIN environments env ON fs.environment_id = env.id WHERE (vt.id <> 5 
AND ((fp.path = $1) AND (f.value_string = $2)))) ) ) AND ((fs.certname) in 
( (SELECT fs.certname AS certname FROM factsets fs INNER JOIN facts f ON 
fs.id = f.factset_ id INNER JOIN fact_paths fp ON f.fact_path_id = fp.id 
INNER JOIN value_types vt ON f.value_type_id = vt.id LEFT JOIN environments 
env ON fs.environment_id = env.id WHERE (vt.id <> 5 AND ((fp.path = $3) AND 
(f.value_string = $4)))) ) )) AND ((fp.name = $5) OR (fp.name = $6))) AND 
NOT ((fs.certname) in ( (SELECT inactive_nodes.certname AS certname FROM 
inactive_nodes) ) )))

Steve Traylen.

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