pwillis-els

Heap dumping a Java process running in AWS ECS

Note: this guide is designed for AWS ECS services, but starting from Step 4 is functionally equivalent to any Docker container on a Linux host.

Step 1. Look up ECS service

1. Log into the AWS Console using the appropriate AWS account
2. Navigate to AWS ECS service clusters (https://console.aws.amazon.com/ecs/home)
3. Make sure you are in the correct region, if not, switch to the correct region (second drop-down menu in top right corner)
4. Select the correct cluster (ex: https://console.aws.amazon.com/ecs/home?region=us-east-1#/clusters//services)
5. In the Services tab, In the 'Filter in this page' text box, type the name of the service

GetoXs

using System;
using System.Linq;
using System.Reflection;
using Microsoft.Extensions.DependencyInjection;

public static class ServiceCollectionExtentions
{
    public static void AddAllTypes<T>(this IServiceCollection services
        , Assembly[] assemblies
        , bool additionalRegisterTypesByThemself = false

Criteo-dotnet-blog

private static Func<Process, string> GetProcessNameAccessor()
{
    var param = Expression.Parameter(typeof(Process), "arg");
    var processInfoMember = Expression.Field(param, "processInfo");
    var processNameMember = Expression.Field(processInfoMember, "processName");

    var lambda = Expression.Lambda(typeof(Func<Process, string>), processNameMember, param);

    return (Func<Process, string>)lambda.Compile();
}

yashdeeph709

Prerequisite : Public Key Setup is required for using this setup 
1. First open ~/.ssh/config file and add these lines filling the appropriate details.
This will setup a netcat tunnel through jump server which will forward all your traffic to mail machine.
 ```
 Host <HOSTNAME>
           User <USERNAME>
           HostName <HOSTNAME>
           ProxyCommand ssh <JUMPSERVER-USER>@<JUMPSERVER-ADDR> nc %h %p 2> /dev/null
 ```
2. ssh -v -D :port: :username:@:hostname:

jclosure

if (!doc.containsKey('myfield') || doc['myfield'].empty) { return "unavailable" } else { return doc['myfield'].value }

viktorklang

/*
Copyright 2013 Viktor Klang
   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at
       http://www.apache.org/licenses/LICENSE-2.0
   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and