Alfredo Serafini seralf

How to recover lost Python source code if it's still resident in-memory

I screwed up using git ("git checkout --" on the wrong file) and managed to delete the code I had just written... but it was still running in a process in a docker container. Here's how I got it back, using https://pypi.python.org/pypi/pyrasite/ and https://pypi.python.org/pypi/uncompyle6

Attach a shell to the docker container

Install GDB (needed by pyrasite)

apt-get update && apt-get install gdb

The repository for the assignment is public and Github does not allow the creation of private forks for public repositories.

The correct way of creating a private frok by duplicating the repo is documented here.

For this assignment the commands are:

Create a bare clone of the repository. (This is temporary and will be removed so just do it wherever.)

git clone --bare [email protected]:usi-systems/easytrace.git

sudo mkdir /media/iphone
sudo chown {your userID}:{your groupID} /media/iphone
chmod 775 /media/iphone
/usr/bin/idevice_id -l
/usr/bin/idevicepair -u $UUID pair
ifuse /media/iphone

more on: http://askubuntu.com/questions/615629/how-to-mount-an-iphone-5s-to-ubuntu-14-04

Why this document?

I upgraded my iPhone 5s to iOS 10 and could no longer retrieve photos from it. This was unacceptable for me so I worked at achieving retrieving my photos. This document is my story (on Ubuntu 16.04).

The solution is to compile libimobiledevice and ifuse from source.

Audience

Who is this guide intended for?

We have decided to re-implement Ontohub from scratch, because

even if there is some decoupling into services, the core service (written in Ruby on Rails 3) is still too monolithic and therefore unmanageably complex. It shall be therefore decoupled into a backend (in Ruby on Rails 5) and a frontend (in ember.js).
this further decoupling of services follows the OOR architecture
we would need to migrate from Ruby on Rails 3 (which will be no longer maintained) to Ruby on Rails 5 in several steps, which could be even more costly than a re-implementation.
we could not get along with many problems in using sidekiq as a background service. We hope that RabbitMQ, a true service broker, will be better here. Moreover, servers providing Hets as a service can be registered more easily
new program

1 Background (page 2)

Today's system requirement

large number of request
huge amount of data
quick response time
(almost) 100% uptime

(page 3) If we compare the number of Internet users in the past decades with the number of users of the two afore mentioned websites, we can see that they now handle as much traffic as the entire Internet used to.

	public class BaseQueryValidator {
	private static List<String> extractTableAliases(SqlNode node) {
	final List<String> tables = new ArrayList<>();

	// If order by comes in the query.
	if (node.getKind().equals(SqlKind.ORDER_BY)) {
	// Retrieve exact select.
	node = ((SqlSelect) ((SqlOrderBy) node).query).getFrom();
	} else {
	node = ((SqlSelect) node).getFrom();



	## Useful Commands

	Get kubectl version

	kubectl version

	Get cluster info:

	import akka.actor._
	import akka.stream.scaladsl.Flow
	import org.apache.spark.streaming.dstream.ReceiverInputDStream
	import org.apache.spark.streaming.receiver.ActorHelper
	import akka.actor.{ ExtensionKey, Extension, ExtendedActorSystem }

	import scala.reflect.ClassTag

	object AkkaStreamSparkIntegration {

	@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.
	@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
	@prefix xsd: <http://www.w3.org/2001/XMLSchema#>.
	@prefix xml: <http://www.w3.org/XML/1998/namespace>.
	@prefix owl: <http://www.w3.org/2002/07/owl#>.
	@prefix vs: <http://www.w3.org/2003/06/sw-vocab-status/ns#>.
	@prefix foaf: <http://xmlns.com/foaf/0.1/>.
	@prefix wot: <http://xmlns.com/wot/0.1/>.
	@prefix dc: <http://purl.org/dc/elements/1.1/>.