57 lines
No EOL
2.3 KiB
Python
57 lines
No EOL
2.3 KiB
Python
"""
|
|
Stats resource for the OpenEventDatabase.
|
|
"""
|
|
|
|
import subprocess
|
|
import falcon
|
|
import psycopg2.extras
|
|
from oedb.utils.db import db_connect
|
|
from oedb.utils.serialization import dumps
|
|
from oedb.utils.logging import logger
|
|
|
|
class StatsResource:
|
|
"""
|
|
Resource for retrieving database statistics.
|
|
Handles the /stats endpoint.
|
|
"""
|
|
|
|
def on_get(self, req, resp):
|
|
"""
|
|
Handle GET requests to the /stats endpoint.
|
|
|
|
Args:
|
|
req: The request object.
|
|
resp: The response object.
|
|
"""
|
|
logger.info("Processing GET request to /stats")
|
|
|
|
db = db_connect()
|
|
cur = db.cursor(cursor_factory=psycopg2.extras.DictCursor)
|
|
|
|
try:
|
|
# Estimated row count, way faster than count(*)
|
|
cur.execute("SELECT reltuples::bigint FROM pg_class r WHERE relname = 'events';")
|
|
count = cur.fetchone()[0]
|
|
logger.debug(f"Estimated event count: {count}")
|
|
|
|
# Global info
|
|
cur.execute("SELECT max(lastupdate) as last_updated, current_timestamp-pg_postmaster_start_time() from events;")
|
|
pg_stats = cur.fetchone()
|
|
last = pg_stats[0]
|
|
pg_uptime = pg_stats[1]
|
|
uptime = subprocess.check_output(["uptime", "-p"]).decode('utf-8')[0:-1]
|
|
|
|
# Summary about last 10000 events (what, last, count, sources)
|
|
cur.execute("SELECT row_to_json(stat) from (SELECT events_what as what, left(max(upper(events_when))::text,19) as last, count(*) as count, array_agg(distinct(regexp_replace(regexp_replace(events_tags ->> 'source','^(http://|https://)',''),'/.*',''))) as source from (select * from events order by lastupdate desc limit 10000) as last group by 1 order by 2 desc) as stat;")
|
|
recent = cur.fetchall()
|
|
|
|
resp.body = dumps(dict(events_count=count, last_updated=last, uptime=uptime, db_uptime=pg_uptime, recent=recent))
|
|
resp.status = falcon.HTTP_200
|
|
logger.success("Successfully processed GET request to /stats")
|
|
except Exception as e:
|
|
logger.error(f"Error processing GET request to /stats: {e}")
|
|
resp.status = falcon.HTTP_500
|
|
resp.body = dumps({"error": str(e)})
|
|
finally:
|
|
cur.close()
|
|
db.close() |