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kindule / common.sh
Last active September 28, 2023 00:57
installation
#!/bin/bash
## 设置pg内存
function set_shared_buffers_size() {
# 依据系统内存值的40%设置PG的内存
## 获取系统内存大小（以字节为单位）
total_memory=$(grep MemTotal /proc/meminfo | awk '{print $2 * 1024}')
## 计算要设置的 shared_buffers 大小（系统内存的40%）
shared_buffers_size=$((total_memory * 40 / 100))
@kindule
kindule / main.go
Created May 29, 2023 11:27
package main
import (
"fmt"
"sync"
"time"
)
func main() {
wg := sync.WaitGroup{}
@kindule
kindule / install-tmux
Created April 12, 2019 02:59 — forked from philipsd6/install-tmux
Install tmux 2.3 on rhel/centos 7
# Install tmux on rhel/centos 7
# install deps
yum install gcc kernel-devel make ncurses-devel
# DOWNLOAD SOURCES FOR LIBEVENT AND MAKE AND INSTALL
curl -OL https://github.com/libevent/libevent/releases/download/release-2.0.22-stable/libevent-2.0.22-stable.tar.gz
tar -xvzf libevent-2.0.22-stable.tar.gz
cd libevent-2.0.22-stable
./configure --prefix=/usr/local
@kindule
kindule / log.txt
Created April 8, 2019 06:13
qcfs报错.md
I0408 06:04:28.176359 2074 controllerserver.go:285] Create snapshot pvc-b572ded7-59aa-11e9-81be-0cc47a689d48 for target &{volume %!s(int=6161) pvc-ca2ba76c-59a8-11e9-81be-0cc47a689d48}
E0408 06:04:28.323663 2074 controllerserver.go:312] Error for creating snapshot pvc-b572ded7-59aa-11e9-81be-0cc47a689d48 for target &{volume %!s(int=6161) pvc-ca2ba76c-59a8-11e9-81be-0cc47a689d48}, HTTP request failed
HTTP response:
&{422 Unprocessable Entity 422 HTTP/1.1 1 1 map[X-Xss-Protection:[1; mode=block] X-Content-Type-Options:[nosniff] X-Request-Id:[fd818602-1562-4eb7-8ab7-5f54e2da4161] Set-Cookie:[XSRF-TOKEN=TqWlyOkcRl7D9w0ivmxhCYmF0MVrBO%2F9tMGiOqqJeNT1IcVUNU7hkNig2fOR4gAkKTg1SAO6bLvsJ5Sze838Ug%3D%3D; path=/ _emanage_session=UTU1MTJjb3NSLytLdWxFRVVLbUI0L0k0MFV4b3dFYkNCdHh4RUZESW5TN09jSklzMjFvZ1dJeHVUS3dmYUxGNWxnR2QvelY3dElYNW9mMktzVlE2VWpCQkdUa21NdHF0cVVLZlpidldmQ2V1ZUJZdWVkWFpvaE4zTU1YSm1xcXlrZFgwdzhTajQvWStFVHpaU2hqTEpuUS9uR0JHSERKdzZkcDZHTVppeVN3SVBqZ0cwdDNzbnEvTTE0Z2MwV1ArdmdUYlpTWVdTUXhpaVpCY3FXdjI0NXNSRG
@kindule
kindule / GetHostName.java
Last active March 21, 2019 06:49
GetHostName
import java.net.*;
class GetHostName {
public static void main (String args[]) {
try {
String hostname = InetAddress.getLocalHost().getCanonicalHostName();
System.out.println("Hostname: " + hostname);
}
catch (Throwable e) {
e.printStackTrace();
@kindule
kindule / mycat.log
Last active March 20, 2019 08:36
mycat报错
root@kindule0-6cd08-proxy-0:/usr/local/mycat# ./bin/mycat console
Running Mycat-server...
wrapper | --> Wrapper Started as Console
wrapper | Launching a JVM...
*** buffer overflow detected ***: java terminated
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(+0x731af)[0x7fa9413c01af]
/lib/x86_64-linux-gnu/libc.so.6(__fortify_fail+0x37)[0x7fa941445aa7]
/lib/x86_64-linux-gnu/libc.so.6(+0xf6cc0)[0x7fa941443cc0]
/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/libnet.so(Java_java_net_Inet4AddressImpl_getLocalHostName+0x1a4)[0x7fa90de5a774]
@kindule
kindule / setup-from-source.sh
Last active March 13, 2019 01:00
INSTALLING BPF / EBPF / BCC IN UBUNTU BIONIC BEAVER 18.04
# 安装eBPF
# see https://apt.llvm.org/ for the following archive signature:
wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
cat <<EOF | sudo tee -a /etc/apt/sources.list
# from https://apt.llvm.org/:
deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial main
deb-src http://apt.llvm.org/xenial/ llvm-toolchain-xenial main
# 6.0
deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial-6.0 main
@kindule
kindule / install-systemtap-on-centos-7.sh
Last active March 12, 2019 01:18 — forked from alexandrnikitin/install-systemtap-on-centos-7.sh
Install systemtap on Centos 7
yum install -y systemtap systemtap-runtime
yum --disablerepo=* --enablerepo=base-debuginfo -y install kernel-debuginfo-3.10.0-957.el7.x86_64
yum --disablerepo=* --enablerepo=base-debuginfo -y kernel-devel-3.10.0-957.el7.x86_64
yum install yum-utils
yum install -y kernel-devel-$(uname -r)
yum install -y kernel-debuginfo-$(uname -r)
yum install -y kernel-debuginfo-common-$(uname -m)-$(uname -r)
@kindule
kindule / clone_pid.c
Last active March 12, 2019 00:38
docker internal
#define _GNU_SOURCE
#include <sys/types.h>
#include <sys/wait.h>
#include <stdio.h>
#include <sched.h>
#include <signal.h>
#include <unistd.h>
/* 定义一个给 clone 用的栈，栈大小1M */
#define STACK_SIZE (1024 * 1024)
@kindule
kindule / systemtap-setup.sh
Last active March 6, 2019 02:59
systemtap-setup on redhat 7.4
yum install systemtap
wget http://debuginfo.centos.org/7/x86_64/kernel-debuginfo-common-x86_64-3.10.0-693.el7.x86_64.rpm
wget http://debuginfo.centos.org/7/x86_64/kernel-debuginfo-3.10.0-693.el7.x86_64.rpm
yum localinstall kernel-debuginfo-common-x86_64-3.10.0-693.el7.x86_64.rpm
yum localinstall kernel-debuginfo-3.10.0-693.el7.x86_64.rpm
# https://wangmingjun.com/2018/09/15/how-to-download-and-install-debuginfo-packages-for-centos/
# 由于安装缺少对应版本开发包kernel-devel-3.10.0-693.el7.x86_64.rpm，所以需要从光盘镜像设置安装源