#!/bin/bash # Licensed to Cloudera, Inc. under one # or more contributor license agreements. See the NOTICE file # distributed with this work for additional information # regarding copyright ownership. Cloudera, Inc. 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. #Please enter the base name of each file. They will be called ${HUE_FILE_BASE}${count}.txt. So hue_file_test_ = hue_file_test_1.txt .... NOTE: this must match HUE_FILE_BASE in hue_file_tester.sh HUE_FILE_BASE="hue_file_test_" #Plase enter the directory in HDFS where the above files will be stored. NOTE: this must match HDFS_LOCATION in hue_file_tester.sh. I recommend a location in /tmp so that all of the test users can reach the file. This script will set permissions to 777 on these files. HDFS_LOCATION="/tmp/hue_file_test" #Please enter the number of files that will be created in $HDFS_LOCATION. NOTE: this must match or be less than the value of FILE_COUNT in hue_file_tester.sh. This should be a large number to generate realistic load. I used 300. FILE_COUNT=10 #Please enter the temporary local file system location to store the files created above before they are put in HDFS. OUTPUT_LOCATION="/tmp/hue_file_test" #Please specify the size of the files to be created in MB below. Just enter an integer. 8 will create 8MB files, 50 will create 50MB files. Larger is better since your issues come from large files. FILE_SIZE_MB=8 if [ ! -d ${OUTPUT_LOCATION} ] then mkdir -p ${OUTPUT_LOCATION} fi for (( count=1; count<=${FILE_COUNT}; count++ )) do FILE_NAME="${HUE_FILE_BASE}${count}.txt" echo "Running Command:" echo "dd if=/dev/zero of=${OUTPUT_LOCATION}/${FILE_NAME} bs=1024 count=0 seek=$[1024*${FILE_SIZE_MB}]" dd if=/dev/zero of=${OUTPUT_LOCATION}/${FILE_NAME} bs=1024 count=0 seek=$[1024*${FILE_SIZE_MB}] done echo "Running Command:" echo "hadoop fs -mkdir ${HDFS_LOCATION}" hadoop fs -mkdir ${HDFS_LOCATION} echo "Running Command:" echo "hadoop fs -put ${OUTPUT_LOCATION}/* ${HDFS_LOCATION}" hadoop fs -put ${OUTPUT_LOCATION}/* ${HDFS_LOCATION} echo "Running Command:" echo "hadoop fs -chmod -R 777 ${HDFS_LOCATION}" hadoop fs -chmod -R 777 ${HDFS_LOCATION}