A distributed system consists of multiple autonomous computers that communicate through a computer network.

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Deploying distributed apps with Puppet - advice?

I'm looking into migrating our deployment process over to using Puppet. I'm starting by deploying the third-party apps we use for the system, which include Solr Cloud orchestrated by a Zookeeper ...
0
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1answer
15 views

Restart failed processes on available machine

I'm working on a system that has about 50 processes distributed across about 4 different machines. The architecture allows for any process to run on any machine, but only allows each process to run on ...
0
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1answer
41 views

MediaWiki in multi-server environment

I'd like to ask about some strategies with MediaWiki. How would you run MediaWiki with good performance on a multi-server environment? Since it has configuration files it will also need some sort of ...
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1answer
55 views

Multiple monitoring machines for the same hosts

I'm fairly new to monitoring and am currently trying to setup a monitoring solution for our network infrastructure. Our hardware is pretty old and can therefore fail at any time. We have taken ...
0
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0answers
531 views

Using Openfire for distributed XMPP-based video-chat

I have been tasked with setting up a distributed video-chat system built on XMPP. Currently my setup looks like this: Openfire (XMPP server) + JingleNodes plugin for video chat OpenLDAP (LDAP ...
2
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1answer
77 views

Serving multiple web-service instances [closed]

We're building an API-based web solution on Python which is going to be delivered to individual customers. Each customer is going to have a separate dataset. Currently, it's not a problem to deploy ...
2
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1answer
355 views

Running commands/tasks on multiple EC2 instances simultaneously

I've been given a task where I have to utilize about 200 EC2 instances in AWS. Since I'm completely new to AWS, I'm having trouble doing basic stuff. Each instance is a Ubuntu and they all have the ...
0
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2answers
39 views

Distribute all services between 3 VPS [closed]

i just rent 3 vps servers with this: 4GB RAM 150GB hard disk 2 CPU 6 ip address so we have vps1, vps2 and vps3 and i'm thinking distribute the services like this: VPS1 - frontend + DNS Server + ...
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2answers
44 views

Authentication / Encryption methods for distributed nodes?

I've got a project that will see a bunch of nodes [Raspberry Pis] being distributed to various geographically distributed clients. Naturally, I am wanting to deploy an authentication / encryption ...
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2answers
122 views

Monitor one host from two Nagios instances

I have two Nagios (monitorA and monitorB) servers in different datacenters. On both I have configured same WWW host. This works fine until there is a network problem between one Nagios host and WWW ...
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1answer
169 views

Are there any viable DNS or LDAP alternatives for distributed key/value storage and retrieval? [closed]

I'm working on a software app that needs distributed decentralized name resolution, and isn't bound to TCP/IP. Or more precisely, I need to store a "key" and look up it's value, and the key may be a ...
2
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2answers
551 views

How does a geographically distributed web app handle stored data?

Hypothetically... I log in to a web app from Australia and change some data. In the US my colleague is using the same system and wants to view the data I've changed. How could the web app be deployed ...
0
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1answer
52 views

load website from 3 different server simultaneously [closed]

I have a website hosted on a VPS, But now i have a problem. My website, downed several times in last month and i change my service but still i have the same problems... I want to do something, i want, ...
4
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1answer
104 views

Managing security and firewalls in complex, distributed applications

We have a distributed application composed of several different components. For example, we have Python app servers, PostgreSQL DB servers, Redis servers, Memcached, etc. Some of these services are ...
0
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1answer
34 views

Proxy service likes Apache Http [closed]

Currently I try to simulate my app as distributed servers, so I let them run on localhost:9000 and localhost:9001, i tried using apache load balancer but it is really hard to config on mac, my idea is ...
4
votes
3answers
193 views

Risks of Network Partitioning When a Split Brain Creates a Security Flaw

I'm looking to create a high-availability, scalable networking solution by using a distributed system of data. A node here, describes a network that has control over one copy of the data. These nodes ...
6
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3answers
1k views

Seeking distributed, fault-tolerant, networked block storage [closed]

I'm looking for a distributed, fault-tolerant network storage system which exposes block devices (not filesystems) on the clients. A client's block device should write simultaneously to several ...
1
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3answers
462 views

distributed monitoring with process control

I am searching a tool for monitoring my web apps, which are deployed accross several machines in the same VPN. However, besides the monitoring service, I would like to control my services ...
0
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1answer
88 views

Accessing Instances on ec2

I am hosting my website on 3 amazon instances but I cannot connect them together. I am using windows server 2008 and when I ping xxxxxxxxxxxxxxx.compute-1.amazonaws.com, I get request timed out. Using ...
2
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1answer
349 views

strategy for distributing erlang otp nodes behind haproxy

I have a standard erlang application build upon otp principles. I plan to place my erlang nodes in production as explained below: receive all traffic on a public ip (haproxy) haproxy them to one of ...
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2answers
5k views

Windows DFS - file locking & replication?

I'm in a small company that has offices on the east and west coasts of America and also various people working from their homes. There are Windows Servers already in the offices. I think that ...
1
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1answer
58 views

How can I share and distribute a desktop application to multiple clients on a local network

I am considering a network design for a small office. I am looking at designing the network like this: I'd like to have a central computer on which all the office software is installed and users sign ...
0
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1answer
186 views

Distributed Database Services?

I'm working on a database-driven web service with clients in the US and Australia. We're currently hosted in the US, however our Australian clients are experiencing lag. The lag is primarily due to ...
0
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1answer
78 views

Cheap distributed hosting - will it improve service reliability?

I'm developing a quite popular mobile application which needs to download some amount of data at first run (then check availability of new data periodically). Currently I'm using shared hosting at ...
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2answers
154 views

Amazon EC2 and Local Server Mix

I have a project that I'm working on that will require a lot of computationally intensive services running 24/7 like crawlers, calculations for recommendations etc. My plan is to have the public ...
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3answers
127 views

Best strategy to deploy distributed application on nodes

this is a general question about deploying and maintaining nodes. I am not a sysadmin. I am considering the following 'naive' strategy: Pick a linux flavor and stick to it. Create an image with my ...
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2answers
146 views

Push sub-database to master-database?

Say, I have a big database globalclients which is very very big. Now, I divide this big database to 100 sub-databases, as: chinaclients japanclients koreaclients indiaclients brazilclients etc. ...
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2answers
294 views

need a distributed high performance durable logging solution for multiple log sources

Looking for a high performance distributed scalable solution for storing tons of log messages. We have multiple concurrent log sources(=servers). The interesting thing here is that performance is ...
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2answers
66 views

Advice in private clouds/grids?

I'd like to build my own private computing cloud, or so-called grid. I have access to IT classrooms with a bunch of fast computers, and I'd like to utilize that huge horsepower. (Or even just use the ...
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2answers
116 views

distributed vcs for hp-ux

I've been banging my head against the proverbial wall for the past couple of days trying to figure out how to install git on an HP-UX server to which i do not have root access. I've realized that ...
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3answers
573 views

PHP Sessions on Auto-Scaling Servers

(Apologies for cross-posting with SO. I wasn't sure where it was more appropriate.) I'm working on a PHP web app deployed to Amazon Web Services. We have load balancers in front of auto-scaled ...
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3answers
111 views

Distributed System Over The Country Question

We are looking for any idea how to build system that is described here. We have computers placed in the different locations of country. This computers are some kind of servers, one for province in ...
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1answer
853 views

How to make high performance cluster out of 2 laptops I have at home [closed]

I have 2 laptops at home. Could someone please suggest some free cluster softwares using which I can make a HPC out of these 2 laptops so that when working on one of the laptop, I can use RAM,CPU of ...
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2answers
68 views

App for managing/testing code on remote cluster of machines

(Not sure if this is the right group) I have a situation where I have a number of apps that get created/built. These apps change over time, so they need to be tested. I have a number of distributed ...
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5answers
3k views

Experience with MooseFS? [closed]

Anyone have any experience using MooseFS? I want an easy distributed storage platform to store static data archive of about 10 TB and serve it to 20-40 nodes. Also I want to be able to add storage ...
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5answers
1k views

Tips on efficiently storing 25TB+ worth million files in filesystem

Say you are confronted with 25 TB worth uncompressed log files and you have at your disposal an array of 20 commodity boxes with collective free storage capacity of 25 TB. How would you store these ...
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1answer
231 views

What cluster management software does there exist for Windows, except for MS HPC Server?

Do there exist any open-source solutions? Perhaps, cheaper commercial ones? I'm surprised that googling does not yield anything meaningful for me.
0
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2answers
1k views

Architecture of distributed mail server system

There are two email servers. It is necessary that some boxes were stored on the first server, others on the second . They should be allocated in one domain @qwerty.com. How can i make it? ...
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4answers
734 views

need high performance, distributed storage of audit logs from multiple servers

I have a load balanced farm of servers that need to log various messages to an audit log, which will be processed off line at a later stage (This is a medical app, so all access to patient records ...
2
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4answers
672 views

Distributed grep

Is there a solution for a distributed grep? here's the story: I have a bunch of web servers and want to query their application logs (I'm using tomcat, if it matters). I don't want to have to copy ...
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1answer
93 views

Distributed leftover bandwidth testing

Faced with the task of testing the leftover bandwidth capacity for 100+ locations multiple times a day, I asked myself if there is some sort of software package you can install on these computers and ...
6
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2answers
196 views

Is there any technical info about the youtube network? [closed]

I'm an IT graduate student trying to get my head around distributed content distribution systems, much like what I assume Youtube uses. I have read Google Research stuff like Bigtable and Google File ...
2
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1answer
496 views

Splitting build cross the network?

Is there a known solution for splitting build process cross the network machines? Use case: We are an average software development company. We own around 50 development workstations (Quad Core ...
2
votes
1answer
367 views

Kerberos principal names for distributed services

Two typical forms for Kerberos (v5) principal names seem to be: username[/instance]@REALM service/fully-qualified-domain-name@REALM I've also seen something like this for services which could exist ...
1
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6answers
588 views

Launch script on multiple hosts at same time

So here is what i want to do. I have a perlScript.pl and a list of machines: machineA,machineB,machineC. These are linux machines that i can ssh into. I want to issue this script on all 3 of these ...
0
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3answers
99 views

Distributing processing for an application that wasn't designed with that in mind

We've got the application at work that just sits and does a whole bunch of iterative processing on some data files to perform some simulations. This is done by an "old" Win32 application that isn't ...
6
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4answers
2k views

Distributed, Parallel, Fault-tolerant File System

There are so many choices that it's hard to know where to start. My requirements are these: Runs on Linux Most of the files will be between 5-9 MB in size. There will also be a significant number of ...
0
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1answer
549 views

Distributed Lock Manager (DLM) for Windows or Linux?

Is there a distributed lock manager (DLM) feature in any version of Linux or Windows similar to VMS's distributed lock manager?
4
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3answers
326 views

What server monitoring tools will scale to 10K-100K nodes?

I've encountered many distributed system monitoring tools that scale to 1000s of nodes, however, there seem to be none that demonstrate or even claim to be able to handle 10 000s or even 100 000s of ...