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BackendConfig.java
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1 // Copyright 2012 Cloudera Inc.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 
15 package com.cloudera.impala.service;
16 
24 public class BackendConfig {
25  public static BackendConfig INSTANCE = new BackendConfig();
26 
27  // Default read block size (in bytes). This is the same as
28  // the default FLAGS_read_size used by the IO manager in the backend.
29  private final long READ_SIZE;
30 
31  private BackendConfig() {
32  // TODO: Populate these by making calls to the backend instead of default constants.
33  READ_SIZE = 8 * 1024 * 1024L;
34  }
35 
36  public long getReadSize() { return READ_SIZE; }
37 }