plesk(default)(2.0)(pool) random stopp

[TomaM]

Hi,
please help, I have a very ugly problem.
We have a production server with Plesk 11 and Windows Server 2012 Standard, all updates current, hosting 400+ sites, 200 of them in plesk(default)(2.0)(pool).
At random times I find this app pool stopped.
In Event Viewer (Application Log) I have at that time several errors:
1.
Log Name: Application
Source: Application Error
Date: 1/26/2014 1:33:28 PM
Event ID: 1000
Task Category: (100)
Level: Error
Keywords: Classic
User: N/A
Computer: PLESKHOST.fidushost.local
Description:
Faulting application name: w3wp.exe, version: 8.0.9200.16384, time stamp: 0x5010885f
Faulting module name: KERNELBASE.dll, version: 6.2.9200.16451, time stamp: 0x50988950
Exception code: 0xe053534f
Fault offset: 0x00014b32
Faulting process id: 0x%9
Faulting application start time: 0x%10
Faulting application path: %11
Faulting module path: %12
Report Id: %13
Faulting package full name: %14
Faulting package-relative application ID: %15
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Application Error" />
<EventID Qualifiers="0">1000</EventID>
<Level>2</Level>
<Task>100</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2014-01-26T11:33:28.000000000Z" />
<EventRecordID>2305009</EventRecordID>
<Channel>Application</Channel>
<Computer>PLESKHOST.fidushost.local</Computer>
<Security />
</System>
<EventData>
<Data>w3wp.exe</Data>
<Data>8.0.9200.16384</Data>
<Data>5010885f</Data>
<Data>KERNELBASE.dll</Data>
<Data>6.2.9200.16451</Data>
<Data>50988950</Data>
<Data>e053534f</Data>
<Data>00014b32</Data>
</EventData>
</Event>
I have this error 4-5 times, a few seconds apart.
2. At the same time, in System Log I have a series of warnings:
Log Name: System
Source: Microsoft-Windows-WAS
Date: 1/26/2014 1:33:29 PM
Event ID: 5011
Task Category: None
Level: Warning
Keywords: Classic
User: N/A
Computer: PLESKHOST.fidushost.local
Description:
A process serving application pool 'plesk(default)(2.0)(pool)' suffered a fatal communication error with the Windows Process Activation Service. The process id was '31840'. The data field contains the error number.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-WAS" Guid="{524B5D04-133C-4A62-8362-64E8EDB9CE40}" EventSourceName="WAS" />
<EventID Qualifiers="32768">5011</EventID>
<Version>0</Version>
<Level>3</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2014-01-26T11:33:29.000000000Z" />
<EventRecordID>2534413</EventRecordID>
<Correlation />
<Execution ProcessID="0" ThreadID="0" />
<Channel>System</Channel>
<Computer>PLESKHOST.fidushost.local</Computer>
<Security />
</System>
<EventData>
<Data Name="AppPoolID">plesk(default)(2.0)(pool)</Data>
<Data Name="ProcessID">31840</Data>
<Binary>6D000780</Binary>
</EventData>
</Event>
and then the error:
3.
Log Name: System
Source: Microsoft-Windows-WAS
Date: 1/26/2014 1:33:29 PM
Event ID: 5002
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: PLESKHOST.fidushost.local
Description:
Application pool 'plesk(default)(2.0)(pool)' is being automatically disabled due to a series of failures in the process(es) serving that application pool.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-WAS" Guid="{524B5D04-133C-4A62-8362-64E8EDB9CE40}" EventSourceName="WAS" />
<EventID Qualifiers="49152">5002</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2014-01-26T11:33:29.000000000Z" />
<EventRecordID>2534414</EventRecordID>
<Correlation />
<Execution ProcessID="0" ThreadID="0" />
<Channel>System</Channel>
<Computer>PLESKHOST.fidushost.local</Computer>
<Security />
</System>
<EventData>
<Data Name="AppPoolID">plesk(default)(2.0)(pool)</Data>
<Binary>
</Binary>
</EventData>
</Event>
Please help, things are very urgent...
Thank you,
Marius

 

[IgorG]

This may occur, If WAS is not running or errors occur during the startup or shutdown of an application pool. Please find the below link for more information and that may be help you to resolve the issue:

http://technet.microsoft.com/en-us/library/cc735271(WS.10).aspx

I think that it is related to corrupted MS updates. So I recommend you to contact the Microsoft support. They will help you more on this to fix the issue.

 

[InderS]

Hello,

How many sites are assigned to this particular application pool?

 

[TomaM]

This may occur, If WAS is not running or errors occur during the startup or shutdown of an application pool. Please find the below link for more information and that may be help you to resolve the issue:

http://technet.microsoft.com/en-us/library/cc735271(WS.10).aspx

I think that it is related to corrupted MS updates. So I recommend you to contact the Microsoft support. They will help you more on this to fix the issue.

Which MS Updates are corrupted?
Did Parallels notify Microsoft of this?
Thank you,
Marius

 

[TomaM]

Exactly 205.
The plesk(default)(4.0)(pool) which is .NET 4.0 is not affected.

 

[TomaM]

Exactly 205.
The plesk(default)(4.0)(pool) which is .NET 4.0 is not affected.

 

[Andrei C]

Maybe not properly configured Plesk Control Panel or IIS 8.0.

P.S. I have 1500+ sites, working without these problems.

 

[InderS]

have you tried assigning dedicated application pool to separate domains?