junxie6

Just documenting docs, articles, and discussion related to gRPC and load balancing.

https://github.com/grpc/grpc/blob/master/doc/load-balancing.md

Seems gRPC prefers thin client-side load balancing where a client gets a list of connected clients and a load balancing policy from a "load balancer" and then performs client-side load balancing based on the information. However, this could be useful for traditional load banaling approaches in clound deployments.

https://groups.google.com/forum/#!topic/grpc-io/8s7UHY_Q1po

gRPC "works" in AWS. That is, you can run gRPC services on EC2 nodes and have them connect to other nodes, and everything is fine. If you are using AWS for easy access to hardware then all is fine. What doesn't work is ELB (aka CLB), and ALBs. Neither of these support HTTP/2 (h2c) in a way that gRPC needs.

junxie6

package main

import (
	"fmt"
	"reflect"
)

type Aaa struct {
	a string
}

junxie6

xmlp

junxie6

package main

import (
	"context"
	"log"
	"net/http"
	"os"
	"os/signal"
	"time"
)

junxie6

Safest way to clean up boot partition - Ubuntu 14.04LTS-x64

Reference

Case I: if /boot is not 100% full and apt is working

1. Check the current kernel version

$ uname -r 

junxie6

# apt-get update && apt-get install build-essential cmake bison -y

# cd /usr/local/src \
&& git clone https://github.com/mysql/mysql-server.git --depth 1 \
&& mkdir bld \
&& cd bld \
&& cmake ../mysql-server \
-DDOWNLOAD_BOOST=1 \
-DWITH_BOOST=/usr/local/src/bld \
&& make

junxie6

#!/bin/bash
#title			: replication-start.sh
#description		: This script automates the process of starting a Mysql Replication on 1 master node and N slave nodes.
#author		 	: Nicolas Di Tullio
#date			: 20160706
#version		: 0.2  
#usage			: bash mysql_replication_autostart.sh
#bash_version		: 4.3.11(1)-release
#=============================================================================

junxie6

#!/bin/bash

mysqlbinlog56=/store/mysql-5.6.23-linux-glibc2.5-x86_64/bin/mysqlbinlog
mysqlclient=/store/mysql-5.6.23-linux-glibc2.5-x86_64/bin/mysql
pidfile=/var/run/binlogstream.pid
binlogdir=/store/binlogstreamer/binlogs
binlogprefix=mysql-bin
mysqluser=tester
mysqlpass=tester
mysqlmaster=10.72.100.236

junxie6

PACKAGES := \
	github.com/eliasson/foo \
	github.com/eliasson/bar
DEPENDENCIES := github.com/eliasson/acme

all: build silent-test

build:
	go build -o bin/foo main.go

junxie6

// Traverses an arbitrary struct and translates all stings it encounters
//
// I haven't seen an example for reflection traversing an arbitrary struct, so
// I want to share this with you. If you encounter any bugs or want to see
// another example please comment.
//
// The MIT License (MIT)
//
// Copyright (c) 2014 Heye Vöcking
//