Boostada maanta, waxaan ku baari doonaa sababta ka dibna waxaan ku siin doonaa xalalka arrinta codsiyada Webka ee soo celinta ^(Web)HTTP Error 503 iyo WAS dhacdo 5189^{(WAS event 5189)} , ka dib markaad cusboonaysiiso Windows 10.

^(Web)Khaladaadka HTTP HTTP ee abka 503^{(HTTP Error 503)} & WAS dhacdo 5189

Haddii aad haysato kombuyuutar ku shaqeeya Windows 10 ama Windows Server 2016 kaas oo leh Adeegga Macluumaadka Internetka (IIS) karti u leh, oo aad u cusboonaysiiso nooca cusub ee Windows 10 ama Windows Server 2016 , markaa codsiyada webka qaarkood ma bilaabi karaan, laakiin taa beddelkeeda, Waxa laga yaabaa inay tuuraan fariinta khaladka ah ee soo socota:

Service Unavailable

HTTP Error 503. The service is unavailable.

Waxaa intaa dheer, haddii aad aragto Diiwaanka Dhacdada^{(Event Log)} , waxaad arki doontaa fariinta soo socota:

Dhacdadii WAS^(WAS) 5189: Adeegga Dhaqdhaqaaqa Habraaca Windows wuxuu^{(Windows Process Activation Service)} ku guuldareystay inuu soo saaro faylka qaabeynta barkada codsiga barkada codsiga '< DefaultAppPool >'. Nooca qaladku waa '0'. Si arrintan loo xalliyo, fadlan hubi in faylka Applicationhost.config uu sax yahay oo dib u gudbi isbeddeladii qaabaynta ee u dambeeyay ee la sameeyay. Goobta xogta waxaa ku jira lambarka qaladka.

Sababta abka Webka ^(Web)HTTP Error 503 iyo dhacdo WAS 5189

Ciladani waxay dhici kartaa sababtoo ah Adeegga ^(Service)Dhaqdhaqaaqa Daaqadaha ( WAS ) waxay abuurtaa faylka qaabaynta ku meel gaadhka ah barkada codsiga IIS kasta ee galka hoose inta lagu jiro hawlgalka caadiga ah.

C:\inetpub\temp\appPools

Inta lagu jiro marxaladda cusboonaysiinta ee bilowga ah, Cusboonaysiinta Windows^{(Windows Update)} waxay baadhaysaa faylalka iyo faylalka jira (ka baxsan galka Windows ) oo waxay diiwaangeliyaan jidadkooda dib loogu soo celinayo cusboonaysiinta ka dib. Si kastaba ha ahaatee, sababtoo ah faylasha qaabeynta waa ku meel gaar, waa la tirtiraa marka WAS la joojiyo.

Wajiga xiga ee Cusboonaysiinta Windows^{(Windows Update)} , faylalkan iyo faylalkan hore ee la sawiray waxaa lagu koobiyayaa meel casriyeyn ku meel gaar ah. Ka dib markii Windows la cusboonaysiiyo, Cusboonaysiinta Windows^{(Windows Update)} waxay abuurtaa isku xirka calaamad kasta oo gal ah oo la koobiyeeyay meel cusboonaysiin ku meel gaar ah ka hor inta aysan isku dayin inay ku soo celiso faylalkan iyo faylalkan goobtoodii asalka ahayd.

Si kastaba ha ahaatee, sababtoo ah faylalka qaabeynta ku meel gaadhka ah hadda ma jiraan, Cusboonaysiinta Windows^{(Windows Update)} kama saarto isku xirka calaamadaha.

Marka WAS ay isku daydo inay ku bilowdo habka shaqalaha IIS , ma abuurto gal ku meel gaadh ah si loo qoro qaabaynta sababta oo ah isku xidhka astaanta ah. Sidaa darteed, Http.Sys waxay soo celisaa khalad HTTP 503 .

Sida loo xalliyo apps Web HTTP Error 503 iyo WAS dhacdo 5189

Si loo xalliyo dhibaatadan, Microsoft waxay ku talinaysaa in gacanta lagu tirtiro isku xirka calaamadaha (Xiriirka calaamadaha waa la tirtiri karaa si la mid ah faylasha caadiga ah) ee ay abuurtay Windows Update . Si tan loo sameeyo, raac talaabooyinkan.

Ku fur Command Prompt qaab sare leh^{(Open Command Prompt in elevated mode)} , koobi oo ku dheji amarka hoose oo ku dhufo Gelida^(Enter) :

net stop WAS /y
rmdir /s /q C:\inetpub\temp\appPools
net start W3SVC

Waxaan rajeynayaa in qoraalkani uu ku caawinayo!

Web apps HTTP Error 503 and WAS event 5189 on Windows 10

In today’s post, we will explore the cause and then provide the sоlutions to the issue of Web applications returning HTTP Error 503 and WAS event 5189, after you upgrade Windows 10.

Web apps HTTP Error 503 & WAS event 5189

If you have a computer that is running Windows 10 or Windows Server 2016 that has Internet Information Services (IIS) enabled, and you upgrade to a newer version of Windows 10 or Windows Server 2016, then some web applications may not start, but instead, they may throw up the following error message:

Service Unavailable

HTTP Error 503. The service is unavailable.

Moreover, if you see the Event Log, you will see the following message:

WAS event 5189: The Windows Process Activation Service failed to generate an application pool config file for application pool ‘<DefaultAppPool>’. The error type is ‘0’. To resolve this issue, please ensure that the applicationhost.config file is correct and recommit the last configuration changes made. The data field contains the error number.

Cause of Web apps HTTP Error 503 and WAS event 5189

This error can occur because the Windows Activation Service (WAS) creates a temporary configuration file for each IIS application pool in the folder below during typical operation.

C:\inetpub\temp\appPools

During an initial upgrade phase, Windows Update scans the existing folders and files (outside the Windows folder) and records their paths to be restored after the upgrade. However, because the configuration files are temporary, they are deleted when WAS is stopped.

In the next phase of Windows Update, these previously scanned files and folders are copied to a temporary upgrade location. After Windows is upgraded, Windows Update creates a symbolic link to each folder that was copied to a temporary upgrade location before it tries to restore these files and folders to their original location.

However, because these temporary configuration files no longer exist, Windows Update does not remove the symbolic links.

When WAS tries to start as an IIS worker process, it does not create a temporary folder to write the configuration because of the symbolic links. Therefore, Http.Sys returns an HTTP 503 error.

How to resolve Web apps HTTP Error 503 and WAS event 5189

To resolve this problem, Microsoft recommends to manually delete the symbolic links (Symbolic links can be deleted the same as regular files) that are created by Windows Update. To do this, follow these steps.

Open Command Prompt in elevated mode, copy and paste the command below and hit Enter:

net stop WAS /y
rmdir /s /q C:\inetpub\temp\appPools
net start W3SVC

Hope this post helps!

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