{"code":400,"msg":"{\"error\":{\"root_cause\":[{\"type\":\"illegal_argument_exception\",\"reason\":\"numHits must be > 0; please use TotalHitCountCollector if you just need the total hit count\"}],\"type\":\"search_phase_execution_exception\",\"reason\":\"all shards failed\",\"phase\":\"query\",\"grouped\":true,\"failed_shards\":[{\"shard\":0,\"index\":\"cpsv3\",\"node\":\"IKJwL6C0RVGhID5T0MPfNg\",\"reason\":{\"type\":\"illegal_argument_exception\",\"reason\":\"numHits must be > 0; please use TotalHitCountCollector if you just need the total hit count\"}}],\"caused_by\":{\"type\":\"illegal_argument_exception\",\"reason\":\"numHits must be > 0; please use TotalHitCountCollector if you just need the total hit count\",\"caused_by\":{\"type\":\"illegal_argument_exception\",\"reason\":\"numHits must be > 0; please use TotalHitCountCollector if you just need the total hit count\"}}},\"status\":400}"}