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@clemfromspace
clemfromspace / tasks.py
Created November 24, 2017 04:34
Running a scrapy spider from a celery task
from billiard.context import Process
from scrapy.crawler import Crawler
from scrapy import signals
from scrapy.utils.project import get_project_settings
from twisted.internet import reactor
from celery_app import app
class CrawlerProcess(Process):
@rgreenjr
rgreenjr / postgres_queries_and_commands.sql
Last active May 10, 2024 17:12
Useful PostgreSQL Queries and Commands
-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
FROM pg_stat_activity
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
ORDER BY query_start desc;
-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query
FROM pg_stat_activity
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'