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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
// Resource Profiles are computed by the planner. They are passed to backend ExecNodes
// and DataSinks to configure their memory usage. See for more
// details.
namespace cpp impala
namespace java org.apache.impala.thrift
struct TBackendResourceProfile {
// The minimum reservation for this plan node in bytes.
1: required i64 min_reservation
// The maximum reservation for this plan node in bytes. MAX_INT64 means effectively
// unlimited.
2: required i64 max_reservation
// The spillable buffer size in bytes to use for this node, chosen by the planner.
// Set iff the node uses spillable buffers.
3: optional i64 spillable_buffer_size
// The buffer size in bytes that is large enough to fit the largest row to be processed.
// Set if the node allocates buffers for rows from the buffer pool.
4: optional i64 max_row_buffer_size