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@therealromster
therealromster / gist:c79bc7e875ec07aa7146
Created Feb 15, 2015
lvm2 docker direct-lvm setup
View gist:c79bc7e875ec07aa7146
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
@jkreps
jkreps / benchmark-commands.txt
Last active Jul 11, 2020
Kafka Benchmark Commands
View benchmark-commands.txt
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
@earthgecko
earthgecko / bash.generate.random.alphanumeric.string.sh
Last active Jul 10, 2020
shell/bash generate random alphanumeric string
View bash.generate.random.alphanumeric.string.sh
#!/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-zA-Z0-9' | fold -w 32 | head -n 1
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