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| #!/bin/bash | |
| # Usage: analyze_database.sh <IP> <PORT> <DATABASE> | |
| for table in $(mysql -u root -h ${1} -P ${2} -D ${3} -Bse "show tables"); do | |
| echo "analyze table" $table; | |
| mysql -u root -h ${1} -P ${2} -D ${3} -Bse "analyze table $table"; | |
| sleep 1; | |
| done |
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| # usage watch -n 0 ./diagnoser.sh | |
| set -ueo pipefail | |
| echo "--> dirty page too much?" | |
| sudo grep nr_dirty /proc/vmstat | |
| echo "--> memory reclaim" | |
| sudo cat /sys/kernel/debug/extfrag/extfrag_index | |
| sudo cat /sys/kernel/debug/extfrag/unusable_index | |
| echo "--> sar" | |
| sudo sar -r 0 | |
| sudo perf stat -e 'syscalls:sys_enter_*' -a sleep 2 | awk '/sys_enter_read|sys_enter_write/' |
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| #!/bin/bash | |
| # usage: flame.sh NAME SEC | |
| set -eo pipefail | |
| NAME=$1 | |
| if [ -z "$1" ]; then | |
| NAME="out" | |
| fi | |
| SECONDS=$2 | |
| if [ -z "$2" ]; then | |
| SECONDS=60 | |
| fi | |
| ./install.sh perf | |
| ./install.sh perl | |
| if [ ! -e stackcollapse-perf.pl ]; then | |
| wget https://raw.githubusercontent.com/brendangregg/FlameGraph/master/stackcollapse-perf.pl | |
| chmod 755 stackcollapse-perf.pl | |
| fi | |
| if [ ! -e flamegraph.pl ]; then | |
| wget https://raw.githubusercontent.com/brendangregg/FlameGraph/master/flamegraph.pl | |
| chmod 755 flamegraph.pl | |
| fi | |
| sudo perf record -F 99 -a -g -- sleep $SECONDS | |
| sudo perf script | ./stackcollapse-perf.pl | ./flamegraph.pl > ${NAME}.svg |
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| #!/bin/bash | |
| # usage: install centos-name [ubuntu-name] | |
| CENTOS_NAME=$1 | |
| if [ -z "$2" ]; then | |
| UBUNTU_NAME=$1 | |
| else | |
| UBUNTU_NAME=$2 | |
| fi | |
| sudo apt-get -v &> /dev/null && sudo apt-get update && sudo apt-get install -y $CENTOS_NAME | |
| which yum &> /dev/null && sudo yum install -y $UBUNTU_NAME |
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| # for Centos | |
| sudo yum install -y epel-release | |
| sudo yum update -y | |
| sudo yum groupinstall -y "Development tools" | |
| sudo yum install -y elfutils-libelf-devel cmake3 git bison flex ncurses-devel | |
| sudo yum install -y luajit luajit-devel # for Lua support | |
| sudo yum install -y centos-release-scl | |
| sudo yum-config-manager --enable rhel-server-rhscl-7-rpms | |
| sudo yum install -y devtoolset-7 llvm-toolset-7 llvm-toolset-7-llvm-devel llvm-toolset-7-llvm-static llvm-toolset-7-clang-devel | |
| source scl_source enable devtoolset-7 llvm-toolset-7 | |
| echo "source scl_source enable devtoolset-7 llvm-toolset-7" >> ~/.bash_profile | |
| mkdir -p tmp && cd tmp | |
| git clone https://github.com/iovisor/bcc.git | |
| mkdir bcc/build; cd bcc/build | |
| cmake3 .. | |
| make -j4 | |
| sudo make install |
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| # usage: mount.sh nvme1n1 /data | |
| set -ueo pipefail | |
| DEVICE=/dev/$1 | |
| MNT=$2 | |
| sudo parted -s -a optimal $DEVICE mklabel gpt -- mkpart primary ext4 1 -1 | |
| if [[ $DEVICE == *"nvme"* ]]; then | |
| PARTITION=${DEVICE}p1 | |
| else | |
| PARTITION=${DEVICE}1 | |
| fi | |
| sleep 1 | |
| sudo mkfs.ext4 $PARTITION | |
| sudo mkdir -p $MNT | |
| sudo mount -t ext4 $PARTITION $MNT -o defaults,barrier,nodelalloc,nodiratime,noatime |
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| #!/bin/bash | |
| # Usage: SSH_FLAGS="-i key.pem" prepare_dir.sh <USER>@<ADDR> | |
| set -eo pipefail | |
| ADDR="$1" | |
| USER_NAME="$(echo $ADDR | grep @ | cut -d@ -f1)" | |
| echo "lsblk on ${ADDR}:" | |
| ssh ${SSH_FLAGS} ${ADDR} "lsblk" | |
| echo "Enter commands (type in help to see available ones):" | |
| while read -a params && [ "${params[0]}" != "exit" ]; do | |
| case "${params[0]}" | |
| in | |
| mount) | |
| # mount device mount_point | |
| ssh ${SSH_FLAGS} ${ADDR} "~/mount.sh ${params[1]} ${params[2]} && sudo \ | |
| chown -R ${USER_NAME}:${USER_NAME} ${params[2]}" | |
| ;; | |
| link) | |
| # link target name | |
| ssh ${SSH_FLAGS} ${ADDR} "sudo rm -rf ${params[2]} \ | |
| && sudo ln -s ${params[1]} ${params[2]} \ | |
| && sudo chown -R ${USER_NAME}:${USER_NAME} ${params[2]}" | |
| ;; | |
| mkdir) | |
| # mkdir name | |
| ssh ${SSH_FLAGS} ${ADDR} "sudo mkdir -p ${params[1]} && sudo chown -R \ | |
| ${USER_NAME}:${USER_NAME} ${params[1]}" | |
| ;; | |
| help) | |
| echo " Available commands:" | |
| echo " mount sda /data" | |
| echo " link /data /symbolic_dir" | |
| echo " mkdir /new_dir" | |
| ;; | |
| esac | |
| done |
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| # usage: raid.sh "nvme1n1 nvme2n1" /data | |
| set -ueo pipefail | |
| DEVICES="" | |
| NUM_DEVICES=0 | |
| for i in $1; do | |
| DEVICES="${DEVICES} /dev/${i}" | |
| NUM_DEVICES=$((NUM_DEVICES + 1)) | |
| done | |
| MNT=$2 | |
| sudo mkdir -p $MNT | |
| sudo mdadm --create --verbose /dev/md0 --level=0 --name=myraid --raid-devices=${NUM_DEVICES} ${DEVICES} | |
| sleep 2 | |
| sudo cat /proc/mdstat | |
| sudo mkfs.ext4 /dev/md0 -L myraid | |
| sudo mdadm --detail --scan | sudo tee -a /etc/mdadm.conf | |
| sudo dracut -H -f /boot/initramfs-$(uname -r).img $(uname -r) | |
| sudo mount -t ext4 LABEL=myraid $MNT -o defaults,barrier,nodelalloc,nodiratime,noatime |
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