https://s3.amazonaws.com/clickhouse-test-reports/37658/486a11a5e25240c3e9b078f9a38b51e3e078acdc/stress_test__undefined__actions_.html Stacktraces: https://pastila.nl/?008065e9/6a66e9d01a2b1479b7b0dcf8dfd5eb34 cc: @KochetovNicolai