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Search found 310 results on 13 pages for 'uptime'.

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• Any frameworks or library allow me to run large amount of concurrent jobs schedully?

  - by Yoga

  Are there any high level programming frameworks that allow me to run large amount of concurrent jobs schedully? e.g. I have 100K of urls need to check their uptime every 5 minutes Definitely I can write a program to handle this, but then I need to handle concurrency, queuing, error handling, system throttling, job distribution etc. Will there be a framework that I only focus on a particular job (i.e. the ping task) and the system will take care of the scaling and error handling for me? I am open to any language.

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• Is MochaHost as good as it sounds?

  - by gilly3

  It's time for me to find a new web host, and I'm a bit overwhelmed by the selection. I need a Windows host. One provider that seems to stand out is MochaHost. Here are a few of the things that look amazing to me: 2 free domains for life. 2!! MS SQL Support - Unlimited Databases 5,000 sites $3.33/month Unlimited everything (traffic, storage, domains, etc.) Is MochaHost too good to be true? Maybe it is notoriously unreliable (despite their 100% uptime guarantee)? Are there other considerations I may be forgetting?

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• WMI/VBS/HTML System Information Script

  - by Methical

  Hey guys; havin' a problem with this code here; can't seem to work out whats goin' wrong with it. All other variables seem to print fine in the HTML ouput; but I get an error that relates to the cputype variable. I get the following error C:\Users\Methical\Desktop\sysinfo.vbs(235,1) Microsoft VBScript runtime error: Invalid procedure call or argument I think it has somethin' to do with this line here fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>CPU</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & cputype & "</i></td></tr>" If i delete this line; the script compiles and outputs with no errors. Here is the full code below Dim strComputer, objWMIService, propValue, objItem Dim strUserName, strPassword, colItems, SWBemlocator ' This section querries for the workstation to be scanned. UserName = "" Password = "" strComputer = "127.1.1.1" ImgDir = "C:\Scripts\images\" 'Sets up the connections and opjects to be used throughout the script. Set SWBemlocator = CreateObject("WbemScripting.SWbemLocator") Set objWMIService = SWBemlocator.ConnectServer(,"root\CIMV2",strUserName,strPassword) 'This determines the current date and time of the PC being scanned. Set colItems = objWMIService.ExecQuery("SELECT * FROM Win32_LocalTime", "WQL", wbemFlagReturnImmediately + wbemFlagForwardOnly) For Each objItem in colItems If objItem.Minute < 10 Then theMinutes = "0" & objItem.Minute Else theMinutes = objItem.Minute End If If objItem.Second < 10 Then theSeconds = "0" & objItem.Second Else theSeconds = objItem.Second End If DateTime = objItem.Month & "/" & objItem.Day & "/" & objItem.Year & " - " & objItem.Hour & ":" & theMinutes & ":" & theSeconds Next 'Gets some ingomation about the Operating System including Service Pack level. Set colItems = objWMIService.ExecQuery("Select * from Win32_OperatingSystem",,48) For Each objItem in colItems WKID = objItem.CSName WKOS = objItem.Caption CSD = objItem.CSDVersion Architecture = objItem.OSArchitecture SysDir = objItem.SystemDirectory SysDrive = objItem.SystemDrive WinDir = objItem.WindowsDirectory ServicePack = objItem.ServicePackMajorVersion & "." & objItem.ServicePackMinorVersion Next 'This section returns the Time Zone Set colItems = objWMIService.ExecQuery("Select * from Win32_TimeZone") For Each objItem in colItems Zone = objItem.Description Next 'This section displays the Shadow Storage information Set colItems = objWMIService.ExecQuery("Select * from Win32_ShadowStorage") For Each objItem in colItems Allocated = int((objItem.AllocatedSpace/1024)/1024+1) UsedSpace = int((objItem.UsedSpace/1024)/1024+1) MaxSpace = int((objItem.MaxSpace/1024)/1024+1) Next 'This section returns the InstallDate of the OS Set objSWbemDateTime = _ CreateObject("WbemScripting.SWbemDateTime") Set colOperatingSystems = _ objWMIService.ExecQuery _ ("Select * from Win32_OperatingSystem") For Each objOperatingSystem _ in colOperatingSystems objSWbemDateTime.Value = _ objOperatingSystem.InstallDate InstallDate = _ objSWbemDateTime.GetVarDate(False) Next 'This section returns the Video card and current resolution. Set colItems = objWMIService.ExecQuery("Select * from Win32_DisplayConfiguration",,48) For Each objItem in colItems VideoCard = objItem.DeviceName Resolution = objItem.PelsWidth & " x " & objItem.PelsHeight & " x " & objItem.BitsPerPel & " bits" Next 'This section returns the Video card memory. Set objWMIService = GetObject("winmgmts:root\cimv2") Set colItems = objWMIService.ExecQuery ("Select * from Win32_VideoController") For Each objItem in colItems VideoMemory = objItem.AdapterRAM/1024/1024 Next 'This returns various system information including current logged on user, domain, memory, manufacture and model. Set colItems = objWMIService.ExecQuery("Select * from Win32_ComputerSystem",,48) For Each objItem in colItems UserName = objItem.UserName Domain = objItem.Domain TotalMemory = int((objItem.TotalPhysicalMemory/1024)/1024+1) Manufacturer = objItem.Manufacturer Model = objItem.Model SysType = objItem.SystemType Next 'This determines the total hard drive space and free hard drive space. Set colItems = objWMIService.ExecQuery("Select * from Win32_LogicalDisk Where Name='C:'",,48) For Each objItem in colItems FreeHDSpace = Fix(((objItem.FreeSpace/1024)/1024)/1024) TotalHDSpace = Fix(((objItem.Size/1024)/1024)/1024) Next 'This section returns the default printer and printer port. Set colItems = objWMIService.ExecQuery("SELECT * FROM Win32_Printer where Default=True", "WQL", wbemFlagReturnImmediately + wbemFlagForwardOnly) For Each objItem in colItems Printer = objItem.Name PortName = objItem.PortName Next 'This returns the CPU information. Set colItems = objWMIService.ExecQuery("SELECT * FROM Win32_Processor", "WQL", wbemFlagReturnImmediately + wbemFlagForwardOnly) For Each objItem in colItems CPUDesc = LTrim(objItem.Name) Next '// CPU Info For each objCPU in GetObject("winmgmts:{impersonationLevel=impersonate}\\" & strComputer & "\root\cimv2").InstancesOf("Win32_Processor") Select Case objCPU.Family Case 2 cputype = "Unknown" Case 11 cputype = "Pentium brand" Case 12 cputype = "Pentium Pro" Case 13 cputype = "Pentium II" Case 14 cputype = "Pentium processor with MMX technology" Case 15 cputype = "Celeron " Case 16 cputype = "Pentium II Xeon" Case 17 cputype = "Pentium III" Case 28 cputype = "AMD Athlon Processor Family" Case 29 cputype = "AMD Duron Processor" Case 30 cputype = "AMD2900 Family" Case 31 cputype = "K6-2+" Case 130 cputype = "Itanium Processor" Case 176 cputype = "Pentium III Xeon" Case 177 cputype = "Pentium III Processor with Intel SpeedStep Technology" Case 178 cputype = "Pentium 4" Case 179 cputype = "Intel Xeon" Case 181 cputype = "Intel Xeon processor MP" Case 182 cputype = "AMD AthlonXP Family" Case 183 cputype = "AMD AthlonMP Family" Case 184 cputype = "Intel Itanium 2" Case 185 cputype = "AMD Opteron? Family" End Select Next 'This returns the current uptime (time since last reboot) of the system. Set colOperatingSystems = objWMIService.ExecQuery ("Select * from Win32_OperatingSystem") For Each objOS in colOperatingSystems dtmBootup = objOS.LastBootUpTime dtmLastBootupTime = WMIDateStringToDate(dtmBootup) dtmSystemUptime = DateDiff("h", dtmLastBootUpTime, Now) Uptime = dtmSystemUptime Next Function WMIDateStringToDate(dtmBootup) WMIDateStringToDate = CDate(Mid(dtmBootup, 5, 2) & "/" & Mid(dtmBootup, 7, 2) & "/" & Left(dtmBootup, 4) & " " & Mid (dtmBootup, 9, 2) & ":" & Mid(dtmBootup, 11, 2) & ":" & Mid(dtmBootup,13, 2)) End Function dim objFSO Set objFSO = CreateObject("Scripting.FileSystemObject") ' -- The heart of the create file script ----------------------- ' -- Creates the file using the value of strFile on Line 11 ' -------------------------------------------------------------- Set fileOutput = objFSO.CreateTextFile( "x.html", true ) 'Set fileOutput = objExplorer.Document 'This is the code for the web page to be displayed. fileOutput.WriteLine "<html>" fileOutput.WriteLine " <head>" fileOutput.WriteLine " <title>System Information for '" & WKID & "' </title>" fileOutput.WriteLine " </head>" fileOutput.WriteLine " <body bgcolor='#FFFFFF' text='#000000' link='#0000FF' vlink='000099' alink='#00FF00'>" fileOutput.WriteLine " <center>" fileOutput.WriteLine " <h1>System Information for " & WKID & "</h1>" fileOutput.WriteLine " <table border='0' cellspacing='1' cellpadding='1' width='95%'>" fileOutput.WriteLine " <tr><td background='" & ImgDir & "blue_spacer.gif'>" fileOutput.WriteLine " <table border='0' cellspacing='0' cellpadding='0' width='100%'>" fileOutput.WriteLine " <tr><td>" fileOutput.WriteLine " <table border='0' cellspacing='0' cellpadding='0' width='100%'>" fileOutput.WriteLine " <tr>" fileOutput.WriteLine " <td width='5%' align='left' valign='middle' background='" & ImgDir & "blue_spacer.gif'><img src='" & ImgDir & "write.gif'></td>" fileOutput.WriteLine " <td width='95%' align='left' valign='middle' background='" & ImgDir & "blue_spacer.gif'> <font color='#FFFFFF' size='5'>WKInfo - </font><font color='#FFFFFF' size='3'>General information on the Workstation.</font></td>" fileOutput.WriteLine " </tr>" fileOutput.WriteLine " <tr><td colspan='2' bgcolor='#FFFFFF'>" fileOutput.WriteLine " <TABLE width='100%' cellspacing='0' cellpadding='2' border='1' bordercolor='#c0c0c0' bordercolordark='#ffffff' bordercolorlight='#c0c0c0'>" fileOutput.WriteLine" <tr height=2><td height=10 align=center bgcolor=midnightblue colspan=3></td></tr>" fileOutput.WriteLine " <TR><TD align='center' bgcolor='#d0d0d0' colspan='2'><b><h3>Date and Time</h3></b></TD></TR>" fileOutput.WriteLine" <tr height=2><td height=10 align=center bgcolor=midnightblue colspan=3></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>Date/Time</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & DateTime & "</i></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>System Uptime</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & Uptime & " hours</i></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>Time Zone</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & Zone & " </i></td></tr>" fileOutput.WriteLine" <tr height=2><td height=10 align=center bgcolor=midnightblue colspan=3></td></tr>" fileOutput.WriteLine " <TR><TD align='center' bgcolor='#d0d0d0' colspan='2'><b><h3>General Computer Information</h3></b></TD></TR>" fileOutput.WriteLine" <tr height=2><td height=10 align=center bgcolor=midnightblue colspan=3></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>Manufacturer</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & Manufacturer & "</i></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>Model</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & Model & "</i></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>System Based</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & SysType & "</i></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>Operating System</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & WKOS & " " & CSD & " " & Architecture & "</i></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>Operating System Install Date</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & InstallDate & "</i></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>UserName</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & UserName & "</i></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>Workstation Name</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & WKID & "</i></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>Domain</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & Domain & "</i></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>System Drive</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & SysDrive & "</i></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>System Directory</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & SysDir & "</i></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>Windows Directory</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & WinDir & "</i></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>ShadowStorage Allocated Space</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & Allocated & " MB</i></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>ShadowStorage Used Space</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & UsedSpace & " MB</i></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>ShadowStorage Max Space</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & MaxSpace & " MB</i></td></tr>" fileOutput.WriteLine" <tr height=2><td height=10 align=center bgcolor=midnightblue colspan=3></td></tr>" fileOutput.WriteLine " <TR><TD align='center' bgcolor='#d0d0d0' colspan='2'><b><h3>General Hardware Information</h3></b></TD></TR>" fileOutput.WriteLine" <tr height=2><td height=10 align=center bgcolor=midnightblue colspan=3></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>CPU</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & cputype & "</i></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>Memory</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & TotalMemory & " MB</i></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>Total HDD Space</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & TotalHDSpace & " GB</i></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>Free HDD Space</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & FreeHDSpace & " GB</i></td></tr>" fileOutput.WriteLine" <tr height=2><td height=10 align=center bgcolor=midnightblue colspan=3></td></tr>" fileOutput.WriteLine " <TR><TD align='center' bgcolor='#d0d0d0' colspan='2'><b><h3>General Video Card Information</h3></b></TD></TR>" fileOutput.WriteLine" <tr height=2><td height=10 align=center bgcolor=midnightblue colspan=3></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>Video Card</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & VideoCard & "</i></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>Resolution</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & Resolution & "</i></td></tr>" fileOutput.WriteLine " <TR><TD width='30%' align='left' bgcolor='#e0e0e0'>Memory</TD><td width='70%' bgcolor=#f0f0f0 align=left><i>" & VideoMemory & " MB</i></td></tr>" 'This section lists all the current services and their status. fileOutput.WriteLine " <TR><TD align='center' bgcolor='#d0d0d0' colspan='2'><b><h3>Current Service Information</h3></b></TD></TR>" fileOutput.WriteLine " <tr><td colspan='2' bgcolor='#f0f0f0'>" fileOutput.WriteLine " <TABLE width='100%' cellspacing='0' cellpadding='2' border='1' bordercolor='#c0c0c0' bordercolordark='#ffffff' bordercolorlight='#c0c0c0'>" fileOutput.WriteLine " <TR><TD width='70%' align='center' bgcolor='#e0e0e0'><b>Service Name</b></td><TD width='30%' align='center' bgcolor='#e0e0e0'><b>Service State</b></td><tr>" Set colRunningServices = objWMIService.ExecQuery("Select * from Win32_Service") For Each objService in colRunningServices fileOutput.WriteLine " <TR><TD align='left' bgcolor='#f0f0f0'>" & objService.DisplayName & "</TD><td bgcolor=#f0f0f0 align=center><i>" & objService.State & "</i></td></tr>" wscript.echo " <TR><TD align='left' bgcolor='#f0f0f0'>" & objService.DisplayName & "</TD><td bgcolor=#f0f0f0 align=center><i>" & objService.State & "</i></td></tr>" Next fileOutput.WriteLine " </table>" fileOutput.WriteLine " </td></tr>" 'This section lists all the current running processes and some information. fileOutput.WriteLine " <TR><TD align='center' bgcolor='#d0d0d0' colspan='2'><b><h3>Current Process Information</h3></b></TD></TR>" fileOutput.WriteLine " <tr><td colspan='2' bgcolor='#f0f0f0'>" fileOutput.WriteLine " <TABLE width='100%' cellspacing='0' cellpadding='2' border='1' bordercolor='#c0c0c0' bordercolordark='#ffffff' bordercolorlight='#c0c0c0'>" fileOutput.WriteLine " <TR><TD width='10%' align='center' bgcolor='#e0e0e0'><b>PID</b></td><TD width='35%' align='center' bgcolor='#e0e0e0'><b>Process Name</b></td><TD width='40%' align='center' bgcolor='#e0e0e0'><b>Owner</b></td><TD width='15%' align='center' bgcolor='#e0e0e0'><b>Memory</b></td></tr>" Set colProcessList = objWMIService.ExecQuery("Select * from Win32_Process") For Each objProcess in colProcessList colProperties = objProcess.GetOwner(strNameOfUser,strUserDomain) fileOutput.WriteLine " <TR><TD align='center' bgcolor='#f0f0f0'>" & objProcess.Handle & "</td><TD align='center' bgcolor='#f0f0f0'>" & objProcess.Name & "</td><TD align='center' bgcolor='#f0f0f0'>" & strUserDomain & "\" & strNameOfUser & "</td><TD align='center' bgcolor='#f0f0f0'>" & objProcess.WorkingSetSize/1024 & " kb</td><tr>" Next fileOutput.WriteLine " </table>" fileOutput.WriteLine " </td></tr>" 'This section lists all the currently installed software on the machine. fileOutput.WriteLine " <TR><TD align='center' bgcolor='#d0d0d0' colspan='2'><b><i>Installed Software</i></b></TD></TR>" fileOutput.WriteLine " <tr><td colspan='2' bgcolor='#f0f0f0'>" Set colSoftware = objWMIService.ExecQuery ("Select * from Win32_Product") For Each objSoftware in colSoftware fileOutput.WriteLine" <TABLE width='100%' cellspacing='0' cellpadding='2' border='1' bordercolor='#c0c0c0' bordercolordark='#ffffff' bordercolorlight='#c0c0c0'>" fileOutput.WriteLine" <tr><td width=30% align=center bgcolor='#e0e0e0'><b>Name</b></td><td width=30% align=center bgcolor='#e0e0e0'><b>Vendor</b></td><td width=30% align=center bgcolor='#e0e0e0'><b>Version</b></td></tr>" fileOutput.WriteLine" <tr><td align=center bgcolor=#f0f0f0>" & objSoftware.Name & "</td><td align=center bgcolor=#f0f0f0>" & objSoftware.Vendor & "</td><td align=center bgcolor=#f0f0f0>" & objSoftware.Version & "</td></tr>" fileOutput.WriteLine" <tr height=2><td height=10 align=center bgcolor=midnightblue colspan=3></td></tr>" fileOutput.WriteLine" </table>" Next fileOutput.WriteLine " </td></tr>" fileOutput.WriteLine " </table>" fileOutput.WriteLine " </td></tr>" fileOutput.WriteLine " </table>" fileOutput.WriteLine " </td></tr>" fileOutput.WriteLine " </table>" fileOutput.WriteLine " </td></tr>" fileOutput.WriteLine " </table>" fileOutput.WriteLine " <p><small></small></p>" fileOutput.WriteLine " </center>" fileOutput.WriteLine " </body>" fileOutput.WriteLine "<html>" fileOutput.close WScript.Quit

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• How can I find out which programming language was used to write any web site?

  - by ebattulga

  If there is no file extension on the end of the URL, how can I find out which programming language - PHP, .Net, ASP, etc. - was used to write a particular website? For example - www.andromeda.mn. Answers: uptime.netcraft.com/ -- Dave Webb builtwith.com -- Jason M Insert after url ?=PHPE9568F34-D428-11d2-A769-00AA001ACF42 -- thomasrutter using HTTP header viewer tool -- thomasrutter

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• Looking for web hosting with php cUrl and MySql support

  - by embedded

  i'm developing an iPhone app which communicates with a remote DB. for that purpose I'm looking for a web hosting service which inclues the following specs: latest PHP cUrl SSL support mySql cron live support Max uptime great money per value ratio The main functionality is communication with the DB and displaying some info on the app. It is important that the web hosting provider will be highly reliable. Are there any providers who give some free usage before starting to pay? Thanks

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• Why would restarting MySQL make my site faster?

  - by beagleguy

  hey all, my site started dragging lately, the queries taking exceptionally longer than I would expect with properly tuned indexes. I just restarted the mysql server after 31 days uptime and every query is now substantially faster and the whole site renders 3-4 times faster. Would there be anything that jumps out at you as to why this may have been? Improper settings on my.cnf perhaps? Any ideas as to what I can start looking at to try and pinpoint why? thanks

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• Difference between Cloud and Virtualization

  - by Akash Kava

  Ops: This does not belong to ServerFault because it focuses on Programing Architecture. I have following questions regarding differences between Cloud and Virtualization.. How Cloud is different then Virtualization? Currently I tried to find out pricing of Rackspace, Amazone and all similar cloud providers, I found that our current 6 dedicated servers came cheaper then their pricing. So how one can claim cloud is cheaper? Is it cheaper only in comparison of normal hosting? We re organized our infrastructure in virtual environment to reduce or configuration overhead at time of failure, we did not have to rewrite any peice of code that is already written for earlier setup. So moving to virtualization does not require any re programming. But cloud is absoltely different and it will require entire reprogramming right? Is it really worth to recode when our current IT costs are 3-4 times lower then cloud hosting including raid backups and all sort of clustering for high availability? New programming architecture means new overheads of training staff, new methods of testing and new deployment schemes, does it justify over "on demand resource usage" words of cloud? We are having current development architecture with simple Server side ASP.NET WebServices with no local context and on client side Flex/Silverlight which offers pretty good REST architecture and its highly scalable. How does cloud differs from REST model of deployment? On storage, SQL Server or MySQL offers pretty good replication and high availibility then what is advantage in cloud? Data guarantee, one of our vendor hosting some other customer's app on cloud (one of most used), lost Entire Hard Disk (the virtual) and entire module in first 6 months. Second provider said its your duty to take backup, fine I agree, but no provider gives SLA for data guarantee, they give 99% uptime. However in most business apps, uptime is less important then data integrity. In our 10 years of dedicated hosting experience we had only one hard disk crash. This makes me little skeptical to go for cloud and loosing control over data. And I feel its just a big marketing buzz to sell virtulization in different form. Size of data, currently all providers charge very heavy for large data, if you are hosting only below 100GB cloud can be good alternative, but I think virtual servers and dedicated servers above 100GB to few TBs are still cheaper. Why would want to pay so high on cloud when there is no data guarentee as well as it doesnt say anything about redundancy. (I wish SO had something for spell check for Internet Explorer, sorry for wrong spellings in my post)

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• Cross platform millisecond timer lasting more than 49 days?

  - by Cetra

  Hey guys, I'm going to be developing a small dedicated server in C/C++ that will require uptime of forever. I've been looking into some time functions as millisecond timing is required for calculations. I have 2 problems that I'm facing: Using a 32bit integer to store the number of milliseconds since the operation began will wrap around at about the 49 days mark resetting to zero. There doesn't seem to be any standard system calls for getting elapsed milliseconds that are platform independant What should I do to resolve both these issues?

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• How to find memory leak from ASPX app having a DLL

  - by Tom

  Any tips How to figure out where is memory leak in my Facebook app, its ASPX using Facebook toolkit DLL and I am afraid the bug may be in that CS library. The problem is that after one week uptime, server is running out of memory and needs to be rebooted, there are quite many users and I cannot run debugger on this "production server", so I would need to simulate somehow use on my local PC.

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• How are updates to the .net framework handled in azure?

  - by Allen

  If someone is hosting something in Azure and a new KB comes along and requires the .net framework to be updated, how is this handled in Azure? Do they automatically update it for you or give you the option to remain at the older version? I'm more interested in how the versioning is handled, rather than uptime etc. Do they force you to stay at the most up to date version of a given version number? As in, the most up to date version of 3.5, etc.

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• Can Prototype or JQuery return an HTTP status code on an AJAX request

  - by jotto

  url = "http://example.com" new Ajax.Request(url, { onComplete: function(transport) { alert(transport.status); } }); I'd like that to return a status of 200 if the site is working, or 500 if it is not working, etc.. But that code is returning 0 all the time. Ultimately, I want to have a setinterval function that regularly pings a website for uptime status.

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• Memcached Lagging

  - by Brad Dwyer

  Let me preface this by saying that this is a followup question to this topic. That was "solved" by switching from Solaris (SmartOS) to Ubuntu for the memcached server. Now we've multiplied load by about 5x and are running into problems again. We are running a site that is doing about 1000 requests/minute, each request hits Memcached with approximately 3 reads and 1 write. So load is approximately 65 requests per second. Total data in the cache is about 37M, and each key contains a very small amount of data (a JSON-encoded array of integers amounting to less than 1K). We have setup a benchmarking script on these pages and fed the data into StatsD for logging. The problem is that there are spikes where Memcached takes a very long time to respond. These do not appear to correlate with spikes in traffic. What could be causing these spikes? Why would memcached take over a second to reply? We just booted up a second server to put in the pool and it didn't make any noticeable difference in the frequency or severity of the spikes. This is the output of getStats() on the servers: Array ( [-----------] => Array ( [pid] => 1364 [uptime] => 3715684 [threads] => 4 [time] => 1336596719 [pointer_size] => 64 [rusage_user_seconds] => 7924 [rusage_user_microseconds] => 170000 [rusage_system_seconds] => 187214 [rusage_system_microseconds] => 190000 [curr_items] => 12578 [total_items] => 53516300 [limit_maxbytes] => 943718400 [curr_connections] => 14 [total_connections] => 72550117 [connection_structures] => 165 [bytes] => 2616068 [cmd_get] => 450388258 [cmd_set] => 53493365 [get_hits] => 450388258 [get_misses] => 2244297 [evictions] => 0 [bytes_read] => 2138744916 [bytes_written] => 745275216 [version] => 1.4.2 ) [-----------:11211] => Array ( [pid] => 8099 [uptime] => 4687 [threads] => 4 [time] => 1336596719 [pointer_size] => 64 [rusage_user_seconds] => 7 [rusage_user_microseconds] => 170000 [rusage_system_seconds] => 290 [rusage_system_microseconds] => 990000 [curr_items] => 2384 [total_items] => 225964 [limit_maxbytes] => 943718400 [curr_connections] => 7 [total_connections] => 588097 [connection_structures] => 91 [bytes] => 562641 [cmd_get] => 1012562 [cmd_set] => 225778 [get_hits] => 1012562 [get_misses] => 125161 [evictions] => 0 [bytes_read] => 91270698 [bytes_written] => 350071516 [version] => 1.4.2 ) ) Edit: Here is the result of a set and retrieve of 10,000 values. Normal: Stored 10000 values in 5.6118 seconds. Average: 0.0006 High: 0.1958 Low: 0.0003 Fetched 10000 values in 5.1215 seconds. Average: 0.0005 High: 0.0141 Low: 0.0003 When Spiking: Stored 10000 values in 16.5074 seconds. Average: 0.0017 High: 0.9288 Low: 0.0003 Fetched 10000 values in 19.8771 seconds. Average: 0.0020 High: 0.9478 Low: 0.0003

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• What is the best server or Ip address to use for prolonged testing?

  - by eldorel

  I usually run uptime/latency tests against (and from) two servers that we own at different sites and until recently I've used the google dns servers as a control group. However, I've realized there is a potential problem with monitoring latency over extended periods of time. Almost all of the major service providers are using ANYCAST. For short tests this doesn't matter, but I need to run a set of tests for at least a week to try and catch an intermittent problem, and a change in the anycast priority while trying to test latency will cause the latency values for that server to change accordingly. Since I'm submitting graphs of this data to the ISP, I need to avoid/account for as many variables as possible. Spikes in the data for only one of the tested servers will only cause headaches. So can anyone recommend servers that: are not using anycast are owned by an entity that has a good uptime reputation (so they can't claim that the problem is server-side) will respond to ICMP requests Have an available service that runs on TCP/UDP (http or dns preferably) Wont consider an automated request every 10 minutes to be abuse Are accessible from anywhere in the world Are not local to the isp ( consider this an investigation of a hostile party ) Thanks in advance. Edit: added #6 and #7 above. More info: I am attempting to demonstrate a network problem for an entire node of our local ISP's network. They are actively blaming the issue on the equipment installed at the customer sites (our backup site is one of these), and refuse to escalate the problem. (even though 2 of these businesses have ISP provided modems, and all of us have completely different routers/services running) I am already quite familiar with the need to test an isp controlled IP, but they are actively dropping all packets targeted at gateway ip addresses and are only passing traffic addressed beyond the gateways. So to demonstrate the issue, I am sending packets to other systems in the same node, systems one hop away from the affected node, and systems completely outside the network. Unfortunately, all of the systems I have currently are either administered directly by myself, or by people who are biased enough to assist me. I need to have several systems included in the trace/log/graphs that are 100% not in the control of either myself or the isp so that the graphs have a stable/unbiased control group. These requirements are straight from legal, I'm just trying to make sure that everything that could be argued to invalidate the data is already covered. In Summary: I need to be able to show tcp/udp/icmp as 3 separate data points, and I need to be able to show the connections inside the local node, from local node to another nearby node, from those 2 nodes to the internet, and through the internet to both verifiable servers and a control group that I have no control over whatsoever. Again, Google/opendns/yahoo/msn/facebook/etc all use anycast, which throws the numbers off every time the anycast caches expire, so I need suggestions of an IP or server that is available for this type of testing. I was hoping someone knew of a system run by someone such as ISC or ICANN, or perhaps even a .gov server (fcc or nsa maybe?) setup for this type of testing. Thanks again.

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• How is htop "Swp" calculated?

  - by Thomas

  When I run htop (on OS X 10.6.8), I see something like this : 1 [||||||| 20.0%] Tasks: 70 total, 0 running 2 [||| 7.2%] Load average: 1.11 0.79 0.64 3 [|||||||||||||||||||||||||||81.3%] Uptime: 00:30:42 4 [|| 5.8%] Mem[|||||||||||||||||||||3872/4096MB] Swp[ 0/0MB] PID USER PRI NI VIRT RES SHR S CPU% MEM% TIME+ Command 284 501 57 0 15.3G 1064M 0 S 0.0 6.5 0:01.26 /Applications/Firefox.app/Contents/MacOS/firefox -psn_0_90134 437 501 57 0 14.8G 785M 0 S 0.0 4.8 0:00.18 /Applications/Thunderbird.app/Contents/MacOS/thunderbird -psn_0_114716 428 501 63 0 12.8G 351M 0 S 1.0 2.1 0:00.51 /Applications/Firefox.app/Contents/MacOS/plugin-container.app/Contents/MacOS/ 696 501 63 0 11.7G 175M 0 S 0.0 1.1 0:00.02 /System/Library/Frameworks/QuickLook.framework/Resources/quicklookd.app/Conte 38 0 33 0 11.1G 422M 0 S 0.0 2.6 0:00.59 /System/Library/Frameworks/CoreServices.framework/Frameworks/Metadata.framewo 183 501 48 0 10.9G 137M 0 S 0.0 0.8 0:00.03 /System/Library/CoreServices/Finder.app/Contents/MacOS/Finder How can I have Processes using Gigabytes of VIRT memory and still 0MB of Swap used ?

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• Easy Server Monitoring/Logging point in time solution?

  - by Andre Jay Marcelo-Tanner

  I managed my company's servers and I need to know if load spiked at 3am on the web or mysql server, what processes were active in apache or what queries were going on in mysql at that point in time and maybe any other information that will help me. I know all of that is in log files all over and its literally a PITA to look it all up and correlate data. isnt there 1 solution thats been invented. i know we have pingdom to monitor uptime and responsiveness. like if it has taken 30 seconds to load a page or an error was given by apache or php or mysql to the browser, i want to know that and what mysql processes were running at the time, the apache full status and maybe top output also. stuff like that also would be looking for a SAAS like cloudkick, something i dont have to spend an entire month of work hours setting up when we can pay for something cheaper.

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• New host, high load?

  - by dotancohen

  A few minutes ago I signed up at a new webhost. I have yet to move my sites over. Upon initial SSH connection, I checked the load and memory usage, they do seem rather higher than I would like: # uptime 12:06:51 up 71 days, 23:23, 1 user, load average: 9.02, 9.49, 9.45 # free total used free shared buffers cached Mem: 33014800 31927192 1087608 0 2384812 17729816 -/+ buffers/cache: 11812564 21202236 Swap: 16787916 8584 16779332 Is that a bit to packed? I'm only paying about $5 USD per month, so I don't expect <0.1 loads, but ~10 is worrisome. Is it not? Also, there is no /etc/issue file so I tried other methods to guess the OS: # uname -a Linux box358.bluehost.com 2.6.32-20120131.55.1.bh6.x86_64 #1 SMP Tue Jan 31 15:43:27 EST 2012 x86_64 x86_64 x86_64 GNU/Linux # which yum /usr/bin/yum # which apt-get # That looks like CentOS / RHEL 6.2 possibly?

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• Zabbix - Some of the monitored items don't refreh

  - by Niro

  I'm experiencing a strange issue with Zabbix monitoring a MySQL server. Most of the data from the server such as MySQL queries per second and MySQL uptime , Buffers memory etc. update nicely while some data like CPU iowait time (avg1) , Host local time ,MySQL number of threads and other items which were monitored in the past has last check time of about a week ago. I can't find any logic in this, for example Mysql number of threads and Mysql queries per second are obtained in a similar way so it does not make sense one of them is monitored and one is not. Please help- how can I fix this? Update - I used zabbix_get from the zabbix server to check one of the items on the zabbix client and it works so the problem must be on the zabbix server side

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• Good experiences with bulk rate SMS providers?

  - by jen_h

  We're a pretty popular service, our users are currently sending 100000+ SMS messages (projected 180k this month, and continuing to grow) per month. We're currently using a primary domestic provider that doesn't provide bulk rates and doesn't provide short code access. We're using a few backup providers as well for max redundancy, but aren't thrilled by 'em. We're ideally looking for a service that provides good bulk rates/incentives, good uptime/redundancy/reputation, easy API-integration (including respectable error codes!) ;). Right now, we're looking primarily for a domestic US SMS solution, but aren't averse to using the same provider for both International & US. For those of you using bulk SMS right now - what are your recommendations, experiences, etc. in the bulk SMS domain? It sounds like I'm looking for a golden unicorn here, I know, but any data/recommendations/warnings you've got are helpful!

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• Failover tmpfs mirroring. Am I doing it right?

  - by user45286

  My goal is to have a certain directory to be available as tmpfs. There will be some modifications during server uptime in this dir and those modifications must be synced to non-tmpfs persistent dir on HDD over rsync. After server boot the latest version from non-tmpfs persistent dir must be moved to tmpfs and rsync syncing to be started. I'm afraid that rsync will erase non-tmpfs backup if tmpfs dir will be empty.. I'm doing it in this way right now: create tmpfs partition in /etc/fstab cat /etc/rc.local (pseudocode) delete "tmpfs rsync" cronjob from /var/spool/cron/crontabs if there is any cp -r /path/to/non-tmpfs-backup /path/to/tmpfs/dir append /var/spool/cron/crontabs with "tmpfs rsync" cronjob What do you think?

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• Memory usage on debian webserver keeps going up

  - by Steven De Groote

  my webserver is running apache 1.3.x for a PHP application, along with mysql on the same machine. Most of the time it runs fine, CPU usage still with nice margin, but somehow memory usage keeps growing throughout uptime. While it looks like it is chunked from time to time, I've had moments my server going down because it's out of memory. Restarting apache or mysql only reduced memusage by 100M. Attached is an overview of monthly memory usage. The 2 massive drops are server restarts after out-of-memory situations. http://imageshack.us/photo/my-images/51/memorymonth.png/ Any explanations for his behaviour or how I could solve this? Thanks! Steven

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• HP ProLiant Smart Array "lock up" code 0x11

  - by ewwhite

  I've a ProLiant DL580 G7 server that experienced a storage subsystem failure during production. The system appeared available and responded to pings, but all I/O access stalled (the system load must have been 100+). The ASR did not trigger at the specified watchdog timeout. I had to force a reboot from the ILO. During POST, I received the following error: A controller failure event occurred prior to this power-up. (Previous lock up code = 0x11) I haven't pulled the ADU report yet, but I'm curious as to what this error actually means. I was not responsible for the the installation, but can see that the firmware is very old. But if there's anything else I should know about the error, I'd like to know for the post-mortem report. edit - I should add that the server had 95 days of uptime prior to the lock up.

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• Proper management of PGPool II

  - by Cathy

  Currently I have a site, with one Postgres database server. It is just for a select number of users (less than ten) but it needs the maximum uptime possible. I would like some kind of automatic failover for the database. So I was thinking something like: one server running PGPool II, one running Postgres as master, one running Postgres as slave. But then, if wherever PGPool is running suddenly loses power (or dies, or whatever), there's a single point of failure and the whole thing goes down. Is there a solution, assuming that outsourcing this to someone else isn't possible?

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• Single-port 2600 router with 2900XL switch

  - by Slava Maslennikov

  I have a setup, where the single port 2600 router is in port 0/2 in the switch, outside network is on port 0/1, and the rest (0/3-0/24) should be clients for the second network that would be managed by the 2600 router. I configured everything with two VLANs: 100 for outside (0/2-0/24), 200 for inside (0/1-0/2). 0/2 is a trunk port for the two VLANs. The issue that came about is that I can't have two VLANs on at once: software doesn't allow it. Now, I can ping the outside network devices (172.16.7.1, 172.16.7.103), and even google (8.8.8.8) from the router, but not the switch. Devices on connected get a DHCP lease properly but can't ping outside the network, just the router - 172.17.7.1 and the switch itself, 172.17.7.7. The configuration for both the router and the switch are here, as well as below. Router: rt.throom#sho run Building configuration... Current configuration : 1015 bytes ! version 12.1 no service single-slot-reload-enable service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname rt.throom ! enable password To053cret ! ! ! ! ! no ip subnet-zero ip dhcp excluded-address 172.17.7.1 172.17.7.2 ip dhcp excluded-address 172.17.7.3 172.17.7.4 ip dhcp excluded-address 172.17.7.5 ! ip dhcp pool VLAN200 network 172.17.7.0 255.255.255.0 default-router 172.17.7.1 dns-server 8.8.8.8 ! ip audit notify log ip audit po max-events 100 ! ! ! ! ! ! ! interface Ethernet0/0 no ip address ! interface Ethernet0/0.100 encapsulation dot1Q 100 ip address 172.16.7.15 255.255.255.0 ip nat outside ! interface Ethernet0/0.200 encapsulation dot1Q 200 ip address 172.17.7.1 255.255.255.0 ip nat inside ! router eigrp 20 network 172.16.0.0 network 172.17.0.0 no auto-summary no eigrp log-neighbor-changes ! no ip classless no ip http server ! access-list 1 permit 172.17.7.0 0.0.0.255 ! ! line con 0 line aux 0 line vty 0 4 login ! end Switch: sw.throom#sho run Building configuration... Current configuration: ! version 11.2 no service pad no service udp-small-servers no service tcp-small-servers ! hostname sw.throom ! enable password Oh5053cret ! ! no spanning-tree vlan 100 no spanning-tree vlan 200 ip subnet-zero ! ! interface VLAN1 no ip address no ip route-cache ! interface FastEthernet0/1 switchport access vlan 100 spanning-tree portfast ! interface FastEthernet0/2 switchport trunk encapsulation dot1q switchport mode trunk ! interface FastEthernet0/3 switchport access vlan 200 spanning-tree portfast ! interface FastEthernet0/4 switchport access vlan 200 spanning-tree portfast ! interface FastEthernet0/5 switchport access vlan 200 spanning-tree portfast ! interface FastEthernet0/6 switchport access vlan 200 spanning-tree portfast ! interface FastEthernet0/7 switchport access vlan 200 spanning-tree portfast ! interface FastEthernet0/8 switchport access vlan 200 spanning-tree portfast ! interface FastEthernet0/9 switchport access vlan 200 spanning-tree portfast ! interface FastEthernet0/10 switchport access vlan 200 spanning-tree portfast ! interface FastEthernet0/11 switchport access vlan 200 spanning-tree portfast ! interface FastEthernet0/12 switchport access vlan 200 spanning-tree portfast ! interface FastEthernet0/13 switchport access vlan 200 spanning-tree portfast ! interface FastEthernet0/14 switchport access vlan 200 spanning-tree portfast ! interface FastEthernet0/15 switchport access vlan 200 spanning-tree portfast ! interface FastEthernet0/16 switchport access vlan 200 spanning-tree portfast ! interface FastEthernet0/17 switchport access vlan 200 spanning-tree portfast ! interface FastEthernet0/18 switchport access vlan 200 spanning-tree portfast ! interface FastEthernet0/19 switchport access vlan 200 spanning-tree portfast ! interface FastEthernet0/20 switchport access vlan 200 spanning-tree portfast ! interface FastEthernet0/21 switchport access vlan 200 spanning-tree portfast ! interface FastEthernet0/22 switchport access vlan 200 spanning-tree portfast ! interface FastEthernet0/23 switchport access vlan 200 spanning-tree portfast ! interface FastEthernet0/24 switchport access vlan 200 spanning-tree portfast ! ! line con 0 stopbits 1 line vty 0 4 login line vty 5 9 login ! end sho ip route gives: Gateway of last resort is 172.16.7.1 to network 0.0.0.0 172.17.0.0/24 is subnetted, 1 subnets C 172.17.7.0 is directly connected, Ethernet0/0.200 172.16.0.0/24 is subnetted, 1 subnets C 172.16.7.0 is directly connected, Ethernet0/0.100 S* 0.0.0.0/0 [1/0] via 172.16.7.1

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• Remote monitoring with screen capture

  - by Anonymous

  Is there anyway i can perodically take screenshots of a remote computer using nagios? I am experimenting with Nagios, and i am trying to explore different monitoring. So my question is apart from using nagios to monitor cpu usage, bandwidth utilization, uptime etc.. can i monitor my worker's productivity by checking what is he doing on his computer in a form of image output. Being able to monitor processes would not be of much help to me, as i only know if he or she is running firefox.exe for example he maybe using excessive use of firefox for facebook or other stuff but he claims he is troubleshooting and looking for solutions on forums. I saw a check_vnc script but i am unable to install the requsite vnc server anyone succesfully tried the vnc script care to share how to go about it? If not anyother way to try this?

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• Providing high availability and failover using MySQL on EC2

  - by crb

  I would like to have a highly-available MySQL system, with automatic failover, running on Amazon EC2 instances. The standard approach to solving this is problem Heartbeat + DRBD, but I've found a lot of posts suggesting DRBD doesn't work on EC2, though none saying exactly why. Obviously, a serial heartbeat or distinct network is out of the question in the virtualised environment. It would also be good to have the different servers be in different availability zones, but we're getting into a much harder problem there. What are peoples' opinion on having a high uptime solution in "the cloud"?

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