3129770fd0
- Concurreny handled via taskID, failure recovery handled via renames - Falls back to search 3 levels up - Cli tool has command to add this to existing tables
69 lines
2.8 KiB
Java
69 lines
2.8 KiB
Java
/*
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* Copyright (c) 2016 Uber Technologies, Inc. (hoodie-dev-group@uber.com)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.uber.hoodie.hadoop;
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import org.apache.hadoop.fs.Path;
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import org.apache.hadoop.mapreduce.JobContext;
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import org.apache.log4j.LogManager;
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import org.apache.log4j.Logger;
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public class HoodieHiveUtil {
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public static final Logger LOG =
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LogManager.getLogger(HoodieHiveUtil.class);
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public static final String HOODIE_CONSUME_MODE_PATTERN = "hoodie.%s.consume.mode";
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public static final String HOODIE_START_COMMIT_PATTERN = "hoodie.%s.consume.start.timestamp";
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public static final String HOODIE_MAX_COMMIT_PATTERN = "hoodie.%s.consume.max.commits";
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public static final String INCREMENTAL_SCAN_MODE = "INCREMENTAL";
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public static final String LATEST_SCAN_MODE = "LATEST";
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public static final String DEFAULT_SCAN_MODE = LATEST_SCAN_MODE;
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public static final int DEFAULT_MAX_COMMITS = 1;
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public static final int MAX_COMMIT_ALL = -1;
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public static final int DEFAULT_LEVELS_TO_BASEPATH = 3;
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public static Integer readMaxCommits(JobContext job, String tableName) {
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String maxCommitName = String.format(HOODIE_MAX_COMMIT_PATTERN, tableName);
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int maxCommits = job.getConfiguration().getInt(maxCommitName, DEFAULT_MAX_COMMITS);
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if (maxCommits == MAX_COMMIT_ALL) {
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maxCommits = Integer.MAX_VALUE;
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}
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LOG.info("Read max commits - " + maxCommits);
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return maxCommits;
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}
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public static String readStartCommitTime(JobContext job, String tableName) {
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String startCommitTimestampName = String.format(HOODIE_START_COMMIT_PATTERN, tableName);
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LOG.info("Read start commit time - " + job.getConfiguration().get(startCommitTimestampName));
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return job.getConfiguration().get(startCommitTimestampName);
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}
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public static String readMode(JobContext job, String tableName) {
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String modePropertyName = String.format(HOODIE_CONSUME_MODE_PATTERN, tableName);
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String mode =job.getConfiguration().get(modePropertyName, DEFAULT_SCAN_MODE);
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LOG.info(modePropertyName + ": " + mode);
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return mode;
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}
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public static Path getNthParent(Path path, int n) {
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Path parent = path;
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for (int i = 0; i < n; i++) {
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parent = parent.getParent();
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}
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return parent;
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}
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}
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