Comments on: SQL Server Connection Reset for Connection Pooling http://thinknook.com/sql-server-connection-reset-for-connection-pooling-2012-02-26/?utm_source=rss&utm_medium=rss&utm_campaign=sql-server-connection-reset-for-connection-pooling Because the world needs another Business Intelligence blog! Fri, 14 Sep 2018 19:30:18 +0000 hourly 1 https://wordpress.org/?v=4.1.41 By: Prakash Bhojegowda http://thinknook.com/sql-server-connection-reset-for-connection-pooling-2012-02-26/#comment-3483 Mon, 18 Sep 2017 17:46:48 +0000 http://thinknook.com/?p=447#comment-3483 Good article!

]]> By: admin http://thinknook.com/sql-server-connection-reset-for-connection-pooling-2012-02-26/#comment-1006 Mon, 26 Nov 2012 10:52:59 +0000 http://thinknook.com/?p=447#comment-1006 Hey Chandan,

I think this is to do with the way the OS Ring Buffer records notifications (or traces).
You can try this procedure instead (using NotificationTime rather than RecordTime):

;WITH connectivity_ring_buffer as
(SELECT
cast(record as xml).value(‘(Record/@id)[1]’, ‘int’) as id,
cast(record as xml).value(‘(Record/@type)[1]’, ‘varchar(50)’) as type,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/RecordType)[1]’, ‘varchar(50)’) as RecordType,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/RecordSource)[1]’, ‘varchar(50)’) as RecordSource,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/Spid)[1]’, ‘int’) as Spid,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/SniConnectionId)[1]’, ‘uniqueidentifier’) as SniConnectionId,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/SniProvider)[1]’, ‘int’) as SniProvider,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/OSError)[1]’, ‘int’) as OSError,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/SniConsumerError)[1]’, ‘int’) as SniConsumerError,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/State)[1]’, ‘int’) as State,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/RemoteHost)[1]’, ‘varchar(50)’) as RemoteHost,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/RemotePort)[1]’, ‘varchar(50)’) as RemotePort,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/LocalHost)[1]’, ‘varchar(50)’) as LocalHost,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/LocalPort)[1]’, ‘varchar(50)’) as LocalPort,
dateadd (ms, rbf.[timestamp] – tme.ms_ticks, GETDATE()) as NotificationTime,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/LoginTimers/TotalLoginTimeInMilliseconds)[1]’, ‘bigint’) as TotalLoginTimeInMilliseconds,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/LoginTimers/LoginTaskEnqueuedInMilliseconds)[1]’, ‘bigint’) as LoginTaskEnqueuedInMilliseconds,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/LoginTimers/NetworkWritesInMilliseconds)[1]’, ‘bigint’) as NetworkWritesInMilliseconds,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/LoginTimers/NetworkReadsInMilliseconds)[1]’, ‘bigint’) as NetworkReadsInMilliseconds,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/LoginTimers/SslProcessingInMilliseconds)[1]’, ‘bigint’) as SslProcessingInMilliseconds,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/LoginTimers/SspiProcessingInMilliseconds)[1]’, ‘bigint’) as SspiProcessingInMilliseconds,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/LoginTimers/LoginTriggerAndResourceGovernorProcessingInMilliseconds)[1]’, ‘bigint’) as LoginTriggerAndResourceGovernorProcessingInMilliseconds,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/TdsBuffersInformation/TdsInputBufferError)[1]’, ‘int’) as TdsInputBufferError,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/TdsBuffersInformation/TdsOutputBufferError)[1]’, ‘int’) as TdsOutputBufferError,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/TdsBuffersInformation/TdsInputBufferBytes)[1]’, ‘int’) as TdsInputBufferBytes,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/TdsDisconnectFlags/PhysicalConnectionIsKilled)[1]’, ‘int’) as PhysicalConnectionIsKilled,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/TdsDisconnectFlags/DisconnectDueToReadError)[1]’, ‘int’) as DisconnectDueToReadError,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/TdsDisconnectFlags/NetworkErrorFoundInInputStream)[1]’, ‘int’) as NetworkErrorFoundInInputStream,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/TdsDisconnectFlags/ErrorFoundBeforeLogin)[1]’, ‘int’) as ErrorFoundBeforeLogin,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/TdsDisconnectFlags/SessionIsKilled)[1]’, ‘int’) as SessionIsKilled,
cast(record as xml).value(‘(Record/ConnectivityTraceRecord/TdsDisconnectFlags/NormalDisconnect)[1]’, ‘int’) as NormalDisconnect
–record.value(‘(Record/ConnectivityTraceRecord/TdsDisconnectFlags/NormalLogout)[1]’, ‘int’) as NormalLogout
FROM
sys.dm_os_ring_buffers rbf
cross join sys.dm_os_sys_info tme
WHERE ring_buffer_type = ‘RING_BUFFER_CONNECTIVITY’

)
SELECT c.NotificationTime,m.,*
FROM connectivity_ring_buffer c
LEFT JOIN sys.messages m ON c.SniConsumerError = m.message_id AND m.language_id = 1033
ORDER BY c.NotificationTime DESC

]]> By: Chandan Jha http://thinknook.com/sql-server-connection-reset-for-connection-pooling-2012-02-26/#comment-1005 Mon, 26 Nov 2012 09:48:54 +0000 http://thinknook.com/?p=447#comment-1005 I tried that script but the time stamp that it gives are wrong in my case. for example it is yet to clock 8 am EST on 26th NOV but I already see that timing in my results. any ideas?

Thanks
Chandan

]]> By: admin http://thinknook.com/sql-server-connection-reset-for-connection-pooling-2012-02-26/#comment-708 Fri, 26 Oct 2012 21:34:25 +0000 http://thinknook.com/?p=447#comment-708 Thats true, in some cases it can be really difficult to diagnose the issue after a SQL restart since many stats reset, unless ofcourse you were profiling the session. As you suggested I would keep an eye and next time it happens you can start digging around in the right places.

]]> By: Saurabh Sinha http://thinknook.com/sql-server-connection-reset-for-connection-pooling-2012-02-26/#comment-703 Thu, 25 Oct 2012 15:13:59 +0000 http://thinknook.com/?p=447#comment-703 Thanks for sharing query , but it doesnt give records before sql restart so have to wait for re-occurence of issue

]]> By: admin http://thinknook.com/sql-server-connection-reset-for-connection-pooling-2012-02-26/#comment-450 Thu, 14 Jun 2012 12:48:54 +0000 http://thinknook.com/?p=447#comment-450 Cheers! And thanks for pointing out the “record.value” issue,

Its a little quirk in the syntax highlighter plugin am using, which is applying some capitalization on its own, I’ve turned that off, doesn’t look as pretty, but atleast it isnt wrong :)

]]> By: Carsten Johannesen http://thinknook.com/sql-server-connection-reset-for-connection-pooling-2012-02-26/#comment-449 Thu, 14 Jun 2012 11:57:28 +0000 http://thinknook.com/?p=447#comment-449 The code in the XML conversion script must be “record.value” and not “record.VALUE”, as the function name is case sensitive. Otherwise excellent article.

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