ALTER SYSTEM SET citus.enable_metadata_sync TO ON;
SELECT pg_reload_conf();
 pg_reload_conf
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 t
(1 row)

SELECT pg_sleep(0.1);
 pg_sleep
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(1 row)

SET client_min_messages TO ERROR;
SELECT start_metadata_sync_to_node(nodename, nodeport) FROM pg_dist_node WHERE isactive = 't' and noderole = 'primary';
 start_metadata_sync_to_node
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(2 rows)