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Shared Memory Provider, error: 0 - No process is on the other end of the pipe

Error - provider: Shared Memory Provider, error: 0 - No process is on the other end of the pipe

"A mountain in labour and a mouse be result" .Sometimes it happens in finding Root Couse. I faced the same when I was new in organization. Web application was throwing error something like below …


And at the same time when I was trying to connect instance was facing trouble with error like below…












Then I decided to check configuration manager, it was fine at all the required sub-services was running. TCP/IP was configured and running. But the error was still coming since 2 days.. 

It was also surprising because after re-start it was vanished for the day. I faced with the same error till a week.  


Finally I decided to check error log on that server and configuration setup. I was new that’s why there was no admin access to me. So I asked to my senior to give me details of server of below query…

select * from sys.configurations

Result was look like below:-
configuration_id
name
value
minimum
maximum
101
recovery interval (min)
0
0
32767
102
allow updates
0
0
1
103
user connections
5
0
32767

xp_readerrorlog 0,1

Result was look like below

Could not connect because the maximum number of '5' user connections has already been reached. The system administrator can use sp_configure to increase the maximum value. The connection has been closed. [CLIENT: <local machine>]


After getting this error I decide to remove the user connection limit with zero “0” . This time result was ok for the day. Finally Issue resolve. Then I monitored a week no any issue more……

The query which i was used to resolve was :-

       
sp_configure 'showadvanced options', 1
go
reconfigure
go
sp_configure 'user connections', 0
go
reconfigure
go

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