Akhilesh Tyagi tyagiakhilesh

Some helpful guidelines for pull requests and code reviews

It's been often said that programming is part art, part science - that because lots of times there's no single, simple solution to a problem; or if there is, we might not know about it. There's also an infamous joke that if there are n developers in the room, then there are n+1 opinions on how things should be done. That being said, here are some guidelines that should prevent friction when submitting or reviewing code.

The most important thing

The code has to work. Unless you open a PR as a work in progress, the code should be built and tested on a device or emulator.

If you have touched the gradle build files and changed build setup, it's useful to test the whole build from scratch (clean build) and all of the types and flavours. If you have touched payments (logic or UI), you should test that it still works correctly, both in test and production builds. If you updated external libraries, test the pertaining features (e.g. if you

On Tue Oct 27, 2015, history.state.gov began buckling under load, intermittently issuing 500 errors. Nginx's error log was sprinkled with the following errors:

2015/10/27 21:48:36 [crit] 2475#0: accept4() failed (24: Too many open files)

2015/10/27 21:48:36 [alert] 2475#0: *7163915 socket() failed (24: Too many open files) while connecting to upstream...

An article at http://www.cyberciti.biz/faq/linux-unix-nginx-too-many-open-files/ provided directions that mostly worked. Below are the steps we followed. The steps that diverged from the article's directions are marked with an *.

* Instead of using su to run ulimit on the nginx account, use ps aux | grep nginx to locate nginx's process IDs. Then query each process's file handle limits using cat /proc/pid/limits (where pid is the process id retrieved from ps). (Note: sudo may be necessary on your system for the cat command here, depending on your system.)
Added fs.file-max = 70000 to /etc/sysctl.conf

To Create a redis cluster with redis5:

Download source code.
Compile it. make
cd <working/dir>
mkdir 7003 7004 7005
cp <redis/root/src/redis-server 7003/
cp <redis/root/src/redis-server 7004/
cp <redis/root/src/redis-server 7005/
cp <redis/root/src/redis-conf 7003/
cp <redis/root/src/redis-conf 7004/

This is for centos8 This is source

General summary of steps

alter your partition table so sda2 ends at end of disk
reread the partition table (will require a reboot)
resize your LVM pv using pvresize

	#!/bin/bash
	# Fetch 24-hour AWS STS session token and set appropriate environment variables.
	# See http://docs.aws.amazon.com/cli/latest/reference/sts/get-session-token.html .
	# You must have jq installed and in your PATH https://stedolan.github.io/jq/ .
	# Add this function to your .bashrc or save it to a file and source that file from .bashrc .
	# https://gist.github.com/ddgenome/f13f15dd01fb88538dd6fac8c7e73f8c
	#
	# usage: aws-creds MFA_TOKEN [OTHER_AWS_STS_GET-SESSION-TOKEN_OPTIONS...]
	function aws-creds () {
	local pkg=aws-creds

	public void testTopicSubscribeUnSubscribe() {
	try (final InputStream inputStream = CloudDatabase.class.getClassLoader().getResourceAsStream(<service acc file>)) {
	FirebaseOptions options = FirebaseOptions.builder()
	.setCredentials(GoogleCredentials.fromStream(inputStream))
	.setServiceAccountId("<service account email id>")
	.build();
	FirebaseApp.initializeApp(options);
	final UserRecord userRecord = FirebaseAuth.getInstance().getUser("1cf4b276125bf7743124a2");
	final String phoneNumber = userRecord.getEmail().replace("@nobrokerhood.abcd", "");
	String uid = "some-uid";

	version: '2'
	services:
	mongo:
	image: mongo:latest
	container_name: mongo
	environment:
	- MONGO_INITDB_ROOT_USERNAME=user
	- MONGO_INITDB_ROOT_PASSWORD=password
	- MONGO_INITDB_DATABASE=klov
	ports:

	import lombok.val;
	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;
	import org.springframework.http.HttpStatus;
	import org.springframework.http.MediaType;
	import org.springframework.web.filter.OncePerRequestFilter;
	import org.springframework.web.util.ContentCachingRequestWrapper;
	import org.springframework.web.util.ContentCachingResponseWrapper;

	import javax.servlet.FilterChain;

	package com.doorapp.listener.persistence;

	import com.doorapp.bean.es.DeviceUsage;
	import com.doorapp.bean.es.IIndexable;
	import com.doorapp.bean.es.Resident;
	import com.doorapp.entity.Lead;
	import com.doorapp.entity.PartyRelationship;
	import com.doorapp.entity.Person;
	import com.doorapp.entity.Services;
	import com.doorapp.entity.Visit;