76 lines
2.5 KiB
Bash
76 lines
2.5 KiB
Bash
# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. 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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## THIS FILE ACTS AS AN OVERRIDE FOR hadoop-env.sh FOR ALL
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## WORK DONE BY THE mapred AND RELATED COMMANDS.
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##
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## Precedence rules:
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##
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## mapred-env.sh > hadoop-env.sh > hard-coded defaults
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##
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## MAPRED_xyz > HADOOP_xyz > hard-coded defaults
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##
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###
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# Generic settings for MapReduce
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###
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#Override the log4j settings for all MR apps
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# Java property: hadoop.root.logger
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# export MAPRED_ROOT_LOGGER="INFO,console"
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# Override Hadoop's log directory & file
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# Java property: hadoop.log.dir
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# export HADOOP_MAPRED_LOG_DIR=""
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# Override Hadoop's pid directory
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# export HADOOP_MAPRED_PID_DIR=
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# Override Hadoop's identity string. $USER by default.
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# This is used in writing log and pid files, so keep that in mind!
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# Java property: hadoop.id.str
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# export HADOOP_MAPRED_IDENT_STRING=$USER
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# Override Hadoop's process priority
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# Note that sub-processes will also run at this level!
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# export HADOOP_MAPRED_NICENESS=0
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###
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# Job History Server specific parameters
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###
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# Specify the max heapsize for the Job History Server using a numerical value
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# in the scale of MB. For example, to specify an jvm option of -Xmx1000m, set
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# the value to 1000.
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# This value will be overridden by an Xmx setting specified in either
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# MAPRED_OPTS, HADOOP_OPTS, and/or HADOOP_JOB_HISTORYSERVER_OPTS.
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# If not specified, the default value will be picked from either HADOOP_HEAPSIZE
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# or the built-in default.
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#
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#export HADOOP_JOB_HISTORYSERVER_HEAPSIZE=1000
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# Specify the JVM options to be used when starting the ResourceManager.
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# These options will be appended to the options specified as YARN_OPTS
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# and therefore may override any similar flags set in YARN_OPTS
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#export HADOOP_JOB_HISTORYSERVER_OPTS=
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# Specify the log4j settings for the JobHistoryServer
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# Java property: hadoop.root.logger
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#export HADOOP_JHS_LOGGER=INFO,RFA
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