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  • Linux (non-transparent) per-process hugepage accounting

    - by Dan Pritts
    I've recently converted some java apps to run with linux manually-configured hugepages. I've got about 10 tomcats running on a system and I am interested in knowing how much memory each one is using. I can get summary information out of /proc/meminfo as described in Linux Huge Pages Usage Accounting. But I can't find any tools that tell me about the actual per-process hugepage usage. I poked around in /proc/pid/numa_stat and found some interesting information that led me to this grossity: function pshugepage () { HUGEPAGECOUNT=0 for num in `grep 'anon_hugepage.*dirty=' /proc/$@/numa_maps | awk '{print $6}' | sed 's/dirty=//'` ; do HUGEPAGECOUNT=$((HUGEPAGECOUNT+num)) done echo process $@ using $HUGEPAGECOUNT huge pages } The numbers it gives me are plausible, but i'm far from confident this method is correct. Environment is a quad-CPU dell, 64GB ram, RHEL6.3, oracle jdk 1.7.x (current as of 20130728)

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  • Troubles doing transparent proxy for virtual machines

    - by Dan H
    Hi iptables gurus. First here is the basic topology: Internet | Gateway | Workstation---eth0---virbr0 | +-----+-----+ | | | vm1 vm2 vm3 I need to test a traffic analyzer running on my workstation, listening on some port (say 8990) on eth0. The rule [I think] I want is "any packets leaving virbr0 going anywhere to port 80 must instead go to port 8990 on eth0". My software running on port 8990 does its own check of the NAT packet mangling to push the packets through after it inspects them. I've been banging my head on this, with different variants of: iptables -t nat -A PREROUTING -i virbr0 -p tcp --dport 80 -j DNAT \ --to 10.0.0.10:8990 And I've tried the more generic method of using the mangle table with --set-mark and ip rule add fwmark, but I'm not getting it. I guess what's confusing me is that everything runs on the same box. Thanks for any guidance.

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  • Best way to mock WCF Client proxy

    - by chugh97
    Are there any ways to mock a WCF client proxy using Rhino mocks framework so I have access to the Channel property? I am trying to unit test Proxy.Close() method but as the proxy is constructed using the abstract base class ClientBast which has the ICommunication interface, my unit test is failing as the internal infrastructure of the class is absent in the mock object. Any good ways with code samples would be greatly appreciated.

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  • Proxy Authentication in .NET - for external API

    - by n0vic3c0d3r
    I'm developing a twitter messaging utility using Twitter API (twitterizer). But since I'm within a corporate proxy, I'm getting the error '407 Proxy Authentication Required'. Is there any way to authenticate the user before calling the API or use the default proxy settings? P.S Internally the API is using HttpWebRequest.

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  • Identifying NHibernate proxy classes

    - by Marc Gravell
    I'm not an NHibernate user; I write a serialization utility library. A user has logged a feature-request that I should handle NHibernate proxy classes, treating them the same as the actual type. At the moment my code is treating them as unexpected inheritance, and throwing an exception. The code won't know in advance about NHibernate (including no reference, but I'm not aftaid of reflection ;-p) Is there a robust / guaranteed way of detecting such proxy types? Apparently DataContractSerializer handles this fine, so I'm hoping it is something pretty simple. Perhaps some interface or [attribute] decoration. Also, during deserialization; at the moment I would be creating the original type (not the NHibernate type). Is this fine for persistence purposes? Or is the proxy type required? If the latter; what is required to create an instance of the proxy type?

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  • WCF client proxy initialization

    - by 123Developer
    I am consuming a WCF service and created its proxy using the VS 2008 service reference. I am looking for the best pattern to call WCF service method Should I create the client proxy instance every time I call the service method and close the client as soon as I am done with that? When I profiled my client application, I could see that it is taking lot of time to get the Channel while initializing the proxy client Should I use a Singleton pattern for the client proxy so that I can use the only once instance and get rid of the re-initializing overhead? Is there any hidden problem with this approach? I am using .Net framework 3.5 SP1, basicHttp binding with little customization.

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  • .htaccess - proxy AND browser caching???

    - by StackOverflowNewbie
    In .htaccess, how do I specify a file type to be cached via browser and proxy? Cache-control for needs to be "private" for browser, "public" for proxy. However, I can't define Cache-Control to be private AND public for same file type. It seems like I have to choose between browser or proxy caching. Suggestions?

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  • wcf possible to override the dipose of proxy

    - by pdiddy
    I'd like to override the Dispose method of generated proxy (ClientBase) because of the fact that disposing of a proxy calls Close and can throw an exception when the channel is faulted. The only way I came up was to create a partial class to my generatedproxy, make it inherit from IDisposable. : public partial class MyServiceProxy : IDisposable { #region IDisposable Members public void Dispose() { if (State != System.ServiceModel.CommunicationState.Faulted) Close(); else Abort(); } #endregion } I did some test and my Dipose method is indeed called. Do you see any issue with this strategy? Also, I don't like the fact that I'll have to create this partial class for every generated proxy. It be nice if I was able to make my proxy inherit from a base class...

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  • castle dynamic proxy creation

    - by ashish.s
    I am implementing a design where my layer would sit between client and server, and whatever objects i get from server, i would wrap it in a transparent proxy and give to the client, that way i can keep a track of what changed in the object, so when saving it back, i would only send changed information. I looked at castle dynamic proxy, linfu, although they can generate a proxy type, but they cant take existing objects and wrap them instead. Wondering if its possible to do with these frameworks, or if there any other frameworks that enable this...

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  • NTLM Authentication fails ONLY with IE against 2k8 App server behind 2k8 IIS7 Reverse Proxy

    - by CptSkippy
    I'm developing an ASP.NET application for an intranet site that is using Windows/NTLM/WIA/whatever authentication. The application is hosted on a Windows 2k8 server but is accessed through a Reverse Proxy using IIs7 on another 2k8 machine. Authentication works fine in FireFox, Chrome and Safari but fails in IE8. If I circumvent the Proxy and access the application server directly then it works fine so it has something to do with proxy. There's nothing in the Event Viewer on any of the 3 machines to indicate what might be happening. If you connect using IE8 it prompts for your credentials instead of automatically passing them, yes I've setup an explicit trust over an above the domain trust, but it still errors out with a 401 error returned from the proxy. Any ideas where to start troubleshooting this?

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  • Proxy Service Is Response Required

    - by hakish
    hi, I want to know what exactly is the functionality of isResponseRequired (MQ Transport)option in proxy and business service. My understanding was that a Proxy can read from a queue and business service can write to a queue. Is it possible for a Proxy to write the response to a queue?

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  • Nginx user subdomains, should I proxy_pass?

    - by Kevin L.
    I am trying to setup user subdomains, serving content from specific folders: www.example.com/username served from username.example.com (just like github pages). I've looked at Nginx rewrites, but I don't want the browser to redirect--I want the domain to be username.example.com. Anyway, a comment on this question says that I cannot rewrite host, only proxy to it. I tried to setup a proxy_pass, but all of the documentation and examples show it being used to (obviously) proxy to a service on another host or port, but in my case I want to just proxy to another location on the same host and port. Is this the appropriate way to tackle this problem, and if so, what is the right Nginx config syntax?

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  • Proxification rulte for System process

    - by kseen
    I'm trying to configure Microsoft Visual Studio 2010 remote debugging and ran into issue: while connecting to remote computer running MSVSMON, client computer sends SYN request for connection. It makes it under the System process (as I see it in TCPView). As every network apps should be configured to use proxy in our network, I'm trying to add devenv.exe to proxification rules to make its traffic goes thru LAN's proxy server. It doesn't help. So my question is how can I make that low-level-system traffic will go through local area network proxy server?

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  • route port 3000 to apache2 alias

    - by user223470
    I have a meteor application running on port 3000. I can successfully connect to the program with www.myurl.com:3000, but would rather connect to it via www.myurl.com/myappname. I started with the instructions on this web site: http://www.andrehonsberg.com/article/deploy-meteorjs-vhosts-ubuntu1204-mongodb-apache-proxy and I have the following Apache configuration file: <VirtualHost *:80> ServerName myurl.com ProxyRequests off <Proxy *> Order deny,allow Allow from all </Proxy> <Location /> ProxyPass http://localhost:3000/ ProxyPassReverse http://localhost:3000/ </Location> </VirtualHost> I do not know how to continue from here to get the program on www.mysite.com/myapp. In other situations, I would use an Alias within the Apache configuration file, but that doesn't seem like the right direction to go in this case. How do I configure Apache to send port 3000 to www.myurl.com/myapp?

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  • Relaying requests between third party server and Heroku for static IP

    - by Gady
    I have a rails application hosted on Heroku that I need to integrate with 3rd party payments provider. The payment provider requires that my application will have a static IP for incoming and outgoing HTTPS requests. I want to deploy a proxy on a Linode VPS so it can relay the information as a proxy. Relaying the request to the service provider seems easy, I just use their IP. Can I relay requests coming from the service provider to the heroku application? Can I realy the request using a URL (https://myapp.herokuapp.com) ? What is the recommended proxy server to use?

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  • Replacing hyperlinks in Apache2 ProxyPass

    - by Jeroen
    I am using Apache2 with mod proxy on Ubuntu 12.04 as a reverse proxy to some back-end server: <VirtualHost *:80> ProxyPass / http://somewhere.com/mysite ProxyPassReverse / http://somewhere.com/mysite ServerName www.mysite.nl ServerAlias mysite.nl *.mysite.nl </VirtualHost> However, unfortunately the back-end server has some internal links hardcoded; e.g. a link to somewhere else in the site has <a href="http://somewhere.com/mysite/something"> instead of just <a href="something.png">. Is there a way I can use Apache to replace strings in the body as served by the backend before passing it back to the client? E.g replace all instances of "http://somewhere.com/site/" with "http://mysite.nl/" ? I know nginx or so is better as a reverse proxy, but the server is hosting other stuff so port 80 needs to be Apache2.

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  • Setting up dante socks server

    - by skerit
    I want to tunnel all my internet traffic through my vps, so I'm trying to install a proxy server. However: I can't seem to browse the internet through Dante. I get the ERR_EMPTY_RESPONSE error. This is my config: logoutput: stderr /home/user/dantelog internal: eth1 port=1080 external: eth1 method: username pam user.privileged: proxy user.notprivileged: nobody user.libwrap: nobody client pass { from: 10.0.0.0/8 port 1-65535 to: 0.0.0.0/0 } Do I really have to run 2 proxy servers: one for http and one for socks? or is there something else I can do?

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