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#/bin/bash | |
# Ubuntu20 桌面环境配置(arm兼容) | |
# 2021 flyqie | |
# 遇到错误马上退出,避免出现其他问题 | |
set -e | |
# ... | |
set -x | |
# Xrdp |
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VMTHIN(7) LVMTHIN(7) | |
NAME | |
lvmthin — LVM thin provisioning | |
Thin Terms | |
ThinDataLV | |
thin data LV | |
large LV created in a VG | |
used by thin pool to store ThinLV blocks |
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Producer | |
Setup | |
bin/kafka-topics.sh --zookeeper esv4-hcl197.grid.linkedin.com:2181 --create --topic test-rep-one --partitions 6 --replication-factor 1 | |
bin/kafka-topics.sh --zookeeper esv4-hcl197.grid.linkedin.com:2181 --create --topic test --partitions 6 --replication-factor 3 | |
Single thread, no replication | |
bin/kafka-run-class.sh org.apache.kafka.clients.tools.ProducerPerformance test7 50000000 100 -1 acks=1 bootstrap.servers=esv4-hcl198.grid.linkedin.com:9092 buffer.memory=67108864 batch.size=8196 |
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#!/bin/bash | |
# bash generate random alphanumeric string | |
# | |
# bash generate random 32 character alphanumeric string (upper and lowercase) and | |
NEW_UUID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1) | |
# bash generate random 32 character alphanumeric string (lowercase only) | |
cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 32 | head -n 1 |