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  • clam anti-virus is slowing down my server performance

    - by Scarface
    Hey guys, I just installed clam av http://sourceforge.net/projects/php-clamav/ for scanning file uploads on my linux VPN running php. The problem is that for some reason just initiating the extension in the php ini file slows down my entire network. Regular requests such as changing pages that should take less than 1 second take 5. Has anyone ever experienced this before or have a good virus scanning alternative for scanning file uploads? extension=clamav.so [clamav] clamav.dbpath="/usr/share/clamav" clamav.keeptmp=20 clamav.maxreclevel=16 clamav.maxfiles=10000 clamav.maxfilesize=26214400 clamav.maxscansize=104857600 clamav.keeptmp=0

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  • windows clients cannot get dns resolution until you open and close ipv4 properties page

    - by GC78
    This strange problem has started recently. Some windows clients cannot seem to get dns resolution to the internet after boot, and sometimes again at some point in the day. Internal hosts are also slow to resolve. trying to ping an interal host by name will take a long time for the hostname to resolve to ip address and trying to ping a website by name will fail to resolve. If you go into the tcp/ip v4 properties and view but not change anything, ok/close out of that then the client starts working fine, hostnames will resolve quickly. I have seen this happen on both Vista and W7 clients. ipconfig /all at a client experiencing this problem shows everything in order. proper ip addr, gateway, dns server, dns suffix ect.. ipconfig /dnsflush will not fix them, neither will /release and /renew the clients get their ip address, mask and dns server info from either one of 2 OES dhcp servers that assign addresses in different scopes in the same subnet. the internal dns server is a different OES dns server the default gateway is not assigned by the OES server but is statically put in at the client (only for those who need to get to the Internet for their job) flat network topology What can I do to get to the bottom of this? It only happens to a few of the client machines and typically the same ones. It started happening when we made a change to one of the DHCP scopes in iManager. Strangly this problem only happens to clients that get an IP address from the scope that we didn't make any changes to.

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  • How to pass ctor args in Activator.CreateInstance?

    - by thames
    I need a performance enhanced Activator.CreateInstance() and came across this article by Miron Abramson that uses a factory to create the instance in IL and then cache it. (I've included code below from Miron Abramson's site in case it somehow disappears). I'm new to IL Emit code and anything beyond Activator.CreateInstance() for instantiating a class and any help would be much appreciative. My problem is that I need to create an instance of an object that takes a ctor with a parameter. I see there is a way to pass in the Type of the parameter, but is there a way to pass in the value of the ctor parameter as well? If possible, I would like to use a method similar to CreateObjectFactory<T>(params object[] constructorParams) as some objects I want to instantiate may have more than 1 ctor param. // Source: http://mironabramson.com/blog/post/2008/08/Fast-version-of-the-ActivatorCreateInstance-method-using-IL.aspx public static class FastObjectFactory { private static readonly Hashtable creatorCache = Hashtable.Synchronized(new Hashtable()); private readonly static Type coType = typeof(CreateObject); public delegate object CreateObject(); /// /// Create an object that will used as a 'factory' to the specified type T /// public static CreateObject CreateObjectFactory() where T : class { Type t = typeof(T); FastObjectFactory.CreateObject c = creatorCache[t] as FastObjectFactory.CreateObject; if (c == null) { lock (creatorCache.SyncRoot) { c = creatorCache[t] as FastObjectFactory.CreateObject; if (c != null) { return c; } DynamicMethod dynMethod = new DynamicMethod("DM$OBJ_FACTORY_" + t.Name, typeof(object), null, t); ILGenerator ilGen = dynMethod.GetILGenerator(); ilGen.Emit(OpCodes.Newobj, t.GetConstructor(Type.EmptyTypes)); ilGen.Emit(OpCodes.Ret); c = (CreateObject)dynMethod.CreateDelegate(coType); creatorCache.Add(t, c); } } return c; } } Update to Miron's code from commentor on his post 2010-01-11 public static class FastObjectFactory2<T> where T : class, new() { public static Func<T> CreateObject { get; private set; } static FastObjectFactory2() { Type objType = typeof(T); var dynMethod = new DynamicMethod("DM$OBJ_FACTORY_" + objType.Name, objType, null, objType); ILGenerator ilGen = dynMethod.GetILGenerator(); ilGen.Emit(OpCodes.Newobj, objType.GetConstructor(Type.EmptyTypes)); ilGen.Emit(OpCodes.Ret); CreateObject = (Func<T>) dynMethod.CreateDelegate(typeof(Func<T>)); } }

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  • PHP won't let page update automatically every day/6 hours

    - by Daniel
    A friend build a ranking system on his site and I am trying to host in on mine via wordpress and godaddy. It updates for him but when I load it to my site, it works for 6 hours, but as soon as the reload is supposed to occur, it errors and I get a 500 timeout error. His page is at: http://www.jeremynoeljohnson.com/yakezieclub My page is currently at http://sweatingthebigstuff.com/yakezieclub but when you ?reload=1 it will give the error. Any idea why this might be happening? Any settings that I might need to change?

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  • How to use Web-View as page by page while scrolling or Flinging/swiping?

    - by Jetti
    Hi, I want to convert an .docx/.doc file to html and displaying in emulator with help of Web- view. But i am displaying entire data into webview as Single page(we need to scroll many times). So, i want to match the content of .docx file with webview as pages or put some buttons or gestures to get next page.But i unable to display text as pages in Web-View. is there any solution or suggestion to get as pages? How to get the height and width of webview? Thanks

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  • NSURLConnection on simulator and iphone performance issues

    - by Nava Carmon
    I'm experiencing a weird problem and i wonder if anybody else has noticed this: I'm using NSURLConnection as it appears in apple's examples to get xml files from a certain server - pretty straight forward. And most of time it works, but sometimes it's just stuck after initialing and don't get into connection's delegate methods. I'm working with WiFi & 3G and the same server all the time. When it comes to didFailWithError i see that mostly it was a timeout error. When I enter same link in Safari it takes a second to bring data. And after another trial I can access the link. What might be the reason for such a weird behavior? How can I improve it? What is the role of cache policy with NSURLConnection? Thanks, Nava

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  • Cannot access a web page? [closed]

    - by ipkiss
    Hello all, Recently, I could not access the webpage bbc.co.uk anymore, while I can access other websites smoothly. Ar first, I though there may be some problem with my laptop. However, if I use my laptop through my company network, I can load the page bbc.co.uk normally. Then, I though maybe my ADSL at home blocks that web address. However, I tried another laptop with my home ADSL and it can load the page bbc.co.uk very fast. Now I do not know what could be the problem. Can anyone tell me please? Thank you.

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  • Javascript - how to change elements content inside a page when using iframes, using dom, not jquery

    - by Erez
    Hello all, I have this iframe and as u can see it call a js function with the onload trigger. <iframe name="top" id="top" width="99%" height="20%" src="top.htm" frameborder="0" scrolling="no" onload="log_in()"></iframe> What i need to do is to effect the element inside "top.htm" (change innerHTML and stuff like that) from that function. But the problem is that the funnction does not recognize the elements of the "top.htm" page, only the ones in index.htm (the page with the iframes). p.s. i have to use DOM and i have to use iframes. Any one knows how to do that? 10x :-)

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  • Between a jsf page and a managed bean, why the getter method is called twice

    - by Bariscan
    Hi, I have a jsf page with a form has an outputtext in it. The value of outputtext component is called from a backing bean (or managed bean). I know when I code it as #{MyBean.myString} Jsf rename it and calls getMyString() method. However the wierd thing is, when I put a breakpoint to the getter method of this component, I see it is called twice during the page is being rendered. The outputtext is in a h:form, and it is the only component wich is bind to a backingbean. I mean, it is so wierd that jsf should get the value when it first come to the getter method, however it needs to go to the getter method twice. Can you explain what is the reason of this behaviour in jsf? Any help would be appreciated, Best wishes, Baris

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  • Internet Explorer StartUp Page

    - by quandary
    Question: In windows, is there a systemwide setting to change the internet explorer homepage ? So that when a new user is created, the homepage will be the one I set. Of course the user can change his setting later individually.

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  • IE page redirect hanging

    - by 08Hawkeye
    My app does a POST to my local server to create a new DOM element, comes back and should redirect to the same page with the new element. The problem is when it gets back from the server, the app hangs for almost 2 minutes before doing the redirect. I've isolated the issue to the fact that IE seems to have trouble with my tree structure of 100+ DOM elements, and I can see in HTTPWatch that it sits in a "Blocked" call for the 2 minutes before doing the redirect. Our temporary workaround is to set the inner-html of the tree structure to an empty string before submitting, thus eliminating the heavy DOM lifting, but we shouldn't need to do this (firefox has no trouble with the redirect). Question 1: Is there a better fix for this issue? Question 2: Why does ANY page care about the content before a redirect if it's going to be refreshed anyway? Thanks yall //sw

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  • How to improve performance of non-scalar aggregations on denormalized tables

    - by The Lazy DBA
    Suppose we have a denormalized table with about 80 columns, and grows at the rate of ~10 million rows (about 5GB) per month. We currently have 3 1/2 years of data (~400M rows, ~200GB). We create a clustered index to best suit retrieving data from the table on the following columns that serve as our primary key... [FileDate] ASC, [Region] ASC, [KeyValue1] ASC, [KeyValue2] ASC ... because when we query the table, we always have the entire primary key. So these queries always result in clustered index seeks and are therefore very fast, and fragmentation is kept to a minimum. However, we do have a situation where we want to get the most recent FileDate for every Region, typically for reports, i.e. SELECT [Region] , MAX([FileDate]) AS [FileDate] FROM HugeTable GROUP BY [Region] The "best" solution I can come up to this is to create a non-clustered index on Region. Although it means an additional insert on the table during loads, the hit isn't minimal (we load 4 times per day, so fewer than 100,000 additional index inserts per load). Since the table is also partitioned by FileDate, results to our query come back quickly enough (200ms or so), and that result set is cached until the next load. However I'm guessing that someone with more data warehousing experience might have a solution that's more optimal, as this, for some reason, doesn't "feel right".

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  • Question about migrating from ASP .NET User Controls to .NET 3.5 Master Page technology

    - by Jim McFetridge
    When migrating from an ASP .NET user control -based page with a header, footer, and menu to a Master Page using the same HTML mark-up, is it normal for CSS or javascript behaviors to change slightly? In particular, the submenu bar text now appears run together (which looks like a CSS symptom) and the graphics on the line above it appear to have an incorrect z-order. (The menu operation is javascript-based.) (I tried to paste images here but couldn't.) Also, the site is very large and we've not been given permission to redo the menu for the entire site. This is a forward-only migration. (Because I know that someone will ask.) Assuming that there are no changes in scope, what are the things that I should check? Thanks! Jim

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  • IPod Touch - Refreshing Web Page while Offline?

    - by Anduril66
    Using my home wifi network, I open several browser windows on my Ipod Touch and load different web pages on them so I can read them on the bus later. Often, I can switch between windows and read the pages while WiFi is turned off but occasionally web pages try to refresh themselves when I switch to them. Why is this?

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  • IIS6 Front Page Extension: Set Reply-To in Webbot mailers

    - by hurikhan77
    We are running some old legacy IIS6 websites with frontpage extensions. The contact forms (using webbot frontpage extension) use the administrators email address as from address which is pretty cumbersome as our customers tend to click just reply in the requests they receive and we always get these mails and have to bother about them. How do you set a reply-to per webbot form? Or how do you set a from or reply-to globally per IIS6 vhost? In the HTML code it looks like this: <!--webbot bot="SaveResults" S-Email-Format="TEXT/PRE" S-Email-Address="[email protected]" ... --> But this is the recipient address. Additional question: Will it be sufficient to just change this code? Or do I need to apply settings elsewhere?

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  • SSL Returning Blank Page, No Catalina Errors

    - by Mr.Peabody
    This is my second, maybe third, time configuring SSL with Tomcat. Earlier I had created a self signed, which worked, and now using my signed is proving fruitless. I am using Tomcat, operating from the Amazon Linux API. When using the signed cert/keystore, my server is starting normally without errors. However, when trying to navigate to the domain it is giving me an "ERR_SSL_VERSION_OR_CIPHER_MISMATCH" error. My server.xml file looks as follows: <Connector port="8443" maxHttpHeaderSize="8192" maxThreads="150" minSpareThreads="25" maxSpareThreads="75" enableLookups="false" disableUploadTimeout="true" acceptCount="100" scheme="https" secure="true" SSLEnabled="true" clientAuth="false" sslProtocol="TLS" keystoreFile="/home/ec2-user/.keystore/starchild.jks" keystorePass="d6b5385812252f180b961aa3630df504" /> It couldn't hurt to also mention that I'm using a wildcard certificate. Please let me know if anything looks amiss! EDIT: After looking more into this, I've determined there may be nothing is wrong with the Server.xml, or the listening ports. This is becoming more of an actual certificate error, as the curl request is giving me this error: curl: (35) Unknown SSL protocol error in connection to jira.mywebsite.com:-9824 Though, I can't seem to figure out what the "-9824" is. When comparing this curl to another similar setup (using the same Wildcard Certificate) it's turning up the full handshake, which is to be expected. I believe this is now between the protocol/cypher set default on JIRA servers.

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  • C# detect page redirect

    - by petebob796
    I am trying to determine if a qualification exists on http://www.accreditedqualifications.org.uk in the form: http://www.accreditedqualifications.org.uk/qualification/50084811.seo.aspx 50084811 being a qualification aim entered by the end user. If they enter an invalid one e.g. http://www.accreditedqualifications.org.uk/qualification/50084911.seo.aspx They are redirected to an error page (with incorrect http headers as far as I can see). Is there a way to detect the redirect in C#. I would hope to be able to detect the redirect in http headers (thinking it will issue 2) or similar as oppose to having to download the whole page. This could be happening a lot so I would like to minimize traffic.

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  • SharePoint Custom Application Page does not recognize tagPrefix defined in custom web.config

    - by Hasan Khan
    I have a custom application page integrated in Centeral Administration. My application pages are placed in a subfolder in Template\Admin folder. I placed my own web.config in my subfolder and added tagPrefixes in the control section. However when I open my application page ASP.NET throws the exception that the tag SharePoint:InputFormTextBox was not recognized. Moving the add tagprefix statements in root web.config solves the problem but thats not acceptable in my case and I can't define them in individual pages either. What am I doing wrong? Or it doesn't work this way? What can i do to achieve this?

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  • boost multi_index_container and erase performance

    - by rjoshi
    I have a boost multi_index_container declared as below which is indexed by hash_unique id(unsigned long) and hash_non_unique transaction id(long). Insertion and retrieval of elements is fast but when I delete elements, it is much slower. I was expecting it to be constant time as key is hashed. e.g To erase elements from container for 10,000 elements, it takes around 2.53927016 seconds for 15,000 elements, it takes around 7.137100068 seconds for 20,000 elements, it takes around 21.391720757 seconds Is it something I am missing or is it expected behavior? class Session { public: Session() { //increment unique id static unsigned long counter = 0; boost::mutex::scoped_lock guard(mx); counter++; m_nId = counter; } unsigned long GetId() { return m_nId; } long GetTransactionHandle(){ return m_nTransactionHandle; } .... private: unsigned long m_nId; long m_nTransactionHandle; boost::mutext mx; .... }; typedef multi_index_container< Session*, indexed_by< hashed_unique< mem_fun<Session,unsigned long,&Session::GetId> >, hashed_non_unique< mem_fun<Session,unsigned long,&Session::GetTransactionHandle> > > //end indexed_by > SessionContainer; typedef SessionContainer::nth_index<0>::type SessionById; int main() { ... SessionContainer container; SessionById *pSessionIdView = &get<0>(container); unsigned counter = atoi(argv[1]); vector<Session*> vSes(counter); //insert for(unsigned i = 0; i < counter; i++) { Session *pSes = new Session(); container.insert(pSes); vSes.push_back(pSes); } timespec ts; lock_settime(CLOCK_PROCESS_CPUTIME_ID, &ts); //erase for(unsigned i = 0; i < counter; i++) { pSessionIdView->erase(vSes[i]->getId()); delete vSes[i]; } lock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts); std::cout << "Total time taken for erase:" << ts.tv_sec << "." << ts.tv_nsec << "\n"; return (EXIST_SUCCESS); }

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  • Div that should take up the "rest of the page" expands beyond the page in ie.

    - by Clox
    Okay, this is REALLY starting to bug me... This page works fine in both Chrome and Firefox. www.bloggan.tk But if it's opened in internet-explorer it always expands beyond the page and introduces the scrollbar no matter what the resolution of the browser is. I have NO idea what change in the html it was that cause this... Here's the blogger-template-html-source I'd REALLY appreciate if someone could help me with this. Thanks in advance! Edit: I've "solved" it for IE using javascript, but that's only temporary (i hope). The version without javascript can be seen here, so that you still will be able to know what I'm talking about. Still trying to solve it, and still hoping for someone to help me.

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  • IE performance issues with offsetHeight and offsetWidth

    - by Paul
    I have a site that grabs the response text from an AJAX call and does 'innerHTML' on a div that is going to contain it. After I do the 'innerHTML' I process the DIV by traversing the whole hierarchy of nodes and grabbing their [offsetWidth/offsetHeight] to do some operations with it. Why not css style width/height? because sometimes those values are not available since I don't control what is coming from the AJAX response, plus I want the real box dimensions including borders/scrolls/padding. On large injections (let's say 7,000 new DOM elements) IE takes way longer time than FF/Safari just to get this [offsetWidth/offsetHeight], actually if I wasn't doing injection but just render the contents of the HTML in the browser and processing it, it would be much faster. But that is not an option since I have to inject it on a div that will contain it. Anybody has deal with this kind of issue before? is there an alternative to innerHTML, I have try using documentFragment to inject and process and the move it to the div and still I don't see much gain. How can I get the values that are available with [offsetWidth/offsetHeight]? Thanks a bunch for any suggestions. Paul

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