hadoop InternalCommitterConstants 源码

haddop InternalCommitterConstants 代码

文件路径：/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/InternalCommitterConstants.java

/*
 * 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
 *
 *     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 org.apache.hadoop.fs.s3a.commit;

import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.fs.s3a.commit.magic.MagicS3GuardCommitterFactory;
import org.apache.hadoop.fs.s3a.commit.staging.DirectoryStagingCommitterFactory;
import org.apache.hadoop.fs.s3a.commit.staging.PartitionedStagingCommitterFactory;
import org.apache.hadoop.fs.s3a.commit.staging.StagingCommitterFactory;

import static org.apache.hadoop.fs.s3a.commit.CommitConstants.MAGIC;
import static org.apache.hadoop.fs.s3a.commit.CommitConstants.MAGIC_COMMITTER_ENABLED;

/**
 * These are internal constants not intended for public use.
 */
@InterfaceAudience.Private
@InterfaceStability.Unstable
public final class InternalCommitterConstants {

  /**
   * How long threads in the thread pool stay alive when
   * idle. Value in seconds: {@value}.
   */
  public static final long THREAD_KEEP_ALIVE_TIME = 60L;

  private InternalCommitterConstants() {
  }

  /**
   * This is the staging committer base class; only used for testing.
   */
  public static final String COMMITTER_NAME_STAGING = "staging";

  /**
   * A unique identifier to use for this work: {@value}.
   */
  public static final String FS_S3A_COMMITTER_UUID =
      "fs.s3a.committer.uuid";

  /**
   * Where did the UUID come from? {@value}.
   */
  public static final String FS_S3A_COMMITTER_UUID_SOURCE =
      "fs.s3a.committer.uuid.source";

  /**
   * Directory committer factory: {@value}.
   */
  public static final String STAGING_COMMITTER_FACTORY =
      StagingCommitterFactory.CLASSNAME;

  /**
   * Directory committer factory: {@value}.
   */
  public static final String DIRECTORY_COMMITTER_FACTORY =
      DirectoryStagingCommitterFactory.CLASSNAME;

  /**
   * Partitioned committer factory: {@value}.
   */
  public static final String PARTITION_COMMITTER_FACTORY =
      PartitionedStagingCommitterFactory.CLASSNAME;

  /**
   * Magic committer factory: {@value}.
   */
  public static final String MAGIC_COMMITTER_FACTORY =
      MagicS3GuardCommitterFactory.CLASSNAME;

  /**
   * Error text when the destination path exists and the committer
   * must abort the job/task {@value}.
   */
  public static final String E_DEST_EXISTS =
      "Destination path exists and committer conflict resolution mode is "
          + "\"fail\"";

  /** Error message for bad path: {@value}. */
  public static final String E_BAD_PATH
      = "Path does not represent a magic-commit path";

  /** Error message if filesystem isn't magic: {@value}. */
  public static final String E_NORMAL_FS
      = "Filesystem does not have support for 'magic' committer enabled"
      + " in configuration option " + MAGIC_COMMITTER_ENABLED;

  /** Error message if the dest FS isn't S3A: {@value}. */
  public static final String E_WRONG_FS
      = "Output path is not on an S3A Filesystem";

  /** Error message for a path without a magic element in the list: {@value}. */
  public static final String E_NO_MAGIC_PATH_ELEMENT
      = "No " + MAGIC + " element in path";

  /**
   * The UUID for jobs: {@value}.
   * This was historically created in Spark 1.x's SQL queries, but "went away".
   */
  public static final String SPARK_WRITE_UUID =
      "spark.sql.sources.writeJobUUID";

  /**
   * Java temp dir: {@value}.
   */
  public static final String JAVA_IO_TMPDIR = "java.io.tmpdir";

  /**
   * Incoming Job/task configuration didn't contain any option
   * {@link #SPARK_WRITE_UUID}.
   */
  public static final String E_NO_SPARK_UUID =
      "Job/task context does not contain a unique ID in "
          + SPARK_WRITE_UUID;

  /**
   * The MR job ID; copies from MRJobConfig so that it can be
   * referred to without needing hadoop-mapreduce on the classpath.
   */
  public static final String MR_JOB_ID = "mapreduce.job.id";

}

相关信息

hadoop 源码目录

相关文章

hadoop AbstractS3ACommitter 源码

hadoop AbstractS3ACommitterFactory 源码

hadoop CommitConstants 源码

hadoop CommitUtils 源码

hadoop CommitterStatisticNames 源码

hadoop LocalTempDir 源码

hadoop MagicCommitIntegration 源码

hadoop MagicCommitPaths 源码

hadoop PathCommitException 源码

hadoop PutTracker 源码