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This is expected to free up 4 additional database connections per traditional node compare to roughly 12 in total before this change Out of these 3 are accomplished by using existing connection for recently added services then 1 is obtained by closing the connection for the idle callback receiver main process Signed-off-by: jessicamack <jmack@redhat.com> Co-authored-by: jessicamack <jmack@redhat.com>
34 lines
1.1 KiB
Python
34 lines
1.1 KiB
Python
import logging
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import json
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from django.core.management.base import BaseCommand
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from awx.main.dispatch import pg_bus_conn
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from awx.main.dispatch.worker.task import TaskWorker
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logger = logging.getLogger('awx.main.cache_clear')
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class Command(BaseCommand):
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"""
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Cache Clear
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Runs as a management command and starts a daemon that listens for a pg_notify message to clear the cache.
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"""
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help = 'Launch the cache clear daemon'
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def handle(self, *arg, **options):
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try:
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with pg_bus_conn() as conn:
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conn.listen("tower_settings_change")
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for e in conn.events(yield_timeouts=True):
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if e is not None:
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body = json.loads(e.payload)
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logger.info(f"Cache clear request received. Clearing now, payload: {e.payload}")
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TaskWorker.run_callable(body)
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except Exception:
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# Log unanticipated exception in addition to writing to stderr to get timestamps and other metadata
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logger.exception('Encountered unhandled error in cache clear main loop')
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raise
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