com.linkedin.pinot.hadoop.job.SegmentTarPushJob.java Source code

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Here is the source code for com.linkedin.pinot.hadoop.job.SegmentTarPushJob.java

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/**
 * Copyright (C) 2014-2015 LinkedIn Corp. (pinot-core@linkedin.com)
 *
 * Licensed 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
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.linkedin.pinot.hadoop.job;

import java.io.InputStream;
import java.util.Properties;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.conf.Configured;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.linkedin.pinot.common.utils.FileUploadUtils;

public class SegmentTarPushJob extends Configured {

    private String _segmentPath;
    private String[] _hosts;
    private String _port;

    private static final Logger LOGGER = LoggerFactory.getLogger(SegmentTarPushJob.class);

    public SegmentTarPushJob(String name, Properties properties) {
        super(new Configuration());
        _segmentPath = properties.getProperty("path.to.output") + "/";
        _hosts = properties.getProperty("push.to.hosts").split(",");
        _port = properties.getProperty("push.to.port");

    }

    public void run() throws Exception {
        Configuration conf = new Configuration();
        FileSystem fs = FileSystem.get(conf);
        Path path = new Path(_segmentPath);
        FileStatus[] fileStatusArr = fs.globStatus(path);
        for (FileStatus fileStatus : fileStatusArr) {
            if (fileStatus.isDirectory()) {
                pushDir(fs, fileStatus.getPath());
            } else {
                pushOneTarFile(fs, fileStatus.getPath());
            }
        }

    }

    public void pushDir(FileSystem fs, Path path) throws Exception {
        LOGGER.info("******** Now uploading segments tar from dir: {}", path);
        FileStatus[] fileStatusArr = fs.listStatus(new Path(path.toString() + "/"));
        for (FileStatus fileStatus : fileStatusArr) {
            if (fileStatus.isDirectory()) {
                pushDir(fs, fileStatus.getPath());
            } else {
                pushOneTarFile(fs, fileStatus.getPath());
            }
        }
    }

    public void pushOneTarFile(FileSystem fs, Path path) throws Exception {
        String fileName = path.getName();
        if (!fileName.endsWith(".tar.gz")) {
            return;
        }
        long length = fs.getFileStatus(path).getLen();
        for (String host : _hosts) {
            InputStream inputStream = null;
            try {
                inputStream = fs.open(path);
                fileName = fileName.split(".tar")[0];
                LOGGER.info("******** Upoading file: {} to Host: {} and Port: {} *******", fileName, host, _port);
                try {
                    int responseCode = FileUploadUtils.sendSegmentFile(host, _port, fileName, inputStream, length);
                    LOGGER.info("Response code: {}", responseCode);
                } catch (Exception e) {
                    LOGGER.error("******** Error Upoading file: {} to Host: {} and Port: {}  *******", fileName,
                            host, _port);
                    LOGGER.error("Caught exception during upload", e);
                    throw new RuntimeException("Got Error during send tar files to push hosts!");
                }
            } finally {
                inputStream.close();
            }
        }
    }

}