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@ -1,6 +1,56 @@
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-- Create user and enable Ghost tables trigger
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\set QUIET on
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SET client_min_messages TO error;
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-- Recreate the function without extra error messages as it changes depending on the python-redis version
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CREATE OR REPLACE FUNCTION cartodb._CDB_LinkGhostTables(username text, db_name text, event_name text)
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RETURNS void
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AS $$
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if not username:
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return
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if 'json' not in GD:
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import json
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GD['json'] = json
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else:
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json = GD['json']
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tis_config = plpy.execute("select cartodb.CDB_Conf_GetConf('invalidation_service');")[0]['cdb_conf_getconf']
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if not tis_config:
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plpy.warning('Invalidation service configuration not found. Skipping Ghost Tables linking.')
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return
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tis_config_dict = json.loads(tis_config)
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tis_host = tis_config_dict.get('host')
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tis_port = tis_config_dict.get('port')
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tis_timeout = tis_config_dict.get('timeout', 5)
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tis_retry = tis_config_dict.get('retry', 5)
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client = GD.get('invalidation', None)
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while True:
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if not client:
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try:
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import redis
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client = redis.Redis(host=tis_host, port=tis_port, socket_timeout=tis_timeout)
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GD['invalidation'] = client
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except Exception as err:
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# NOTE: no retries on connection error
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plpy.warning('Error trying to connect to Invalidation Service to link Ghost Tables')
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break
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try:
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client.execute_command('DBSCH', db_name, username, event_name)
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break
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except Exception as err:
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client = GD['invalidation'] = None # force reconnect
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if not tis_retry:
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plpy.warning('Error calling Invalidation Service to link Ghost Tables')
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break
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tis_retry -= 1 # try reconnecting
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$$ LANGUAGE '@@plpythonu@@' VOLATILE PARALLEL UNSAFE;
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SELECT CDB_EnableGhostTablesTrigger();
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CREATE ROLE "fulano" LOGIN;
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GRANT ALL ON SCHEMA cartodb TO "fulano";
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