Running queries clickhouse
List all currently running queries with elapsed time
clickhouse-client -q 'SELECT query_id, user, elapsed, query FROM system.processes ORDER BY elapsed DESC'
more clickhouse
all 17 commands →
Kill query
clickhouse-client -q "KILL QUERY WHERE query_id='<id>'"
Drop caches
clickhouse-client -q 'SYSTEM DROP MARK CACHE; SYSTEM DROP UNCOMPRESSED CACHE'
Sync replica
clickhouse-client -q 'SYSTEM SYNC REPLICA mydb.myTable'
Connect and run a query
clickhouse-client --host ch.example.com --user default --password secret -q 'SELECT version()'
Check running queries
clickhouse-client -q 'SELECT query_id, elapsed, query FROM system.processes ORDER BY elapsed DESC LIMIT 10'