glidenote

#!/bin/bash
#
# ============================================================
# 
# @license        This program is free software.
# 
# @category	Script for Percona Server
# @project	Gedow Software
# @package	Gedow Percona Utils
# @author	GedowFather http://blog.father.gedow.net/

glidenote

Using strace and lsof to debug blocked processes

You can use strace on a specific pid to figure out what a specific process is doing, e.g.:

strace -fp <pid>

You might see something like:

select(9, [3 5 8], [], [], {0, 999999}) = 0 (Timeout)

glidenote

#!/bin/sh
if [ -z "$1" ]; then
  echo "usage: ./make-rpm.sh 0.2"
  exit 1
fi
version=$1
cur=`pwd`

rm -f fluent-agent-lite.v$version.tar.gz
rm -fr fluent-agent-lite

glidenote

ヒューマンエラーを許容する

• 「きをつけよう」は意味ない
• 実装、プラクティス、プロセスに落とし込む

バグ、ミスオペの混入を防ぐ

• コードレビュー
• 二人で作業
• テストケース

glidenote

#!/bin/sh --
set -e

echo ""
echo "START POST-MERGE HOOK"
echo ""

HOOK_DIR=`dirname $0`      #git_hooks directory
PROC_DIR="$HOOK_DIR/../.." #vimproc directory