How to clean sys.conversation_endpoints - sql-server-2005

Question

I have a table, a trigger on the table implemented using service broker. More than Half million records are inserted daily into the table.
The asynchronous SP is used to check sveral condition by using inserted data and update other tables. It was running fine for last 1 month and the SP was get executed withing 2-3 seconds of insertion of record. But now it take more than 90 minute.
At present sys.conversation_endpoints have too much records.
(Note that all the table are truncated daily as I do not need those records day after)
Other database activities are normal (average 60% CPU Utilization).
Now where i need to look??
I can re-create database without any problem but i don't think it is a good way to resolve the problem

Answer 1

you can 'end conversation #handle' or 'end conversation #handle with cleanup'

Answer 2

Script to end all conversations for a particular service:
DECLARE #sql NVARCHAR(MAX)
,#far_service NVARCHAR(256) = N'far_service_name';
WHILE EXISTS (
SELECT COUNT(*)
FROM sys.conversation_endpoints
WHERE far_service = #far_service
)
BEGIN
SET #sql = N'';
SELECT TOP 1000 #sql = #sql + N'END CONVERSATION ''' + CAST(conversation_handle AS NVARCHAR(50)) + N''' WITH CLEANUP;
'
FROM sys.conversation_endpoints
WHERE far_service = #far_service;
--PRINT #sql;
EXEC sys.sp_executesql #stmt = #sql;
--RETURN;
END;
GO

Answer 3

Here is my solution, after modifying code from #thesqldev
USE [MY_DATABASE_NAME_HERE]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROCEDURE [dbo].[mqConversationsClearAll]
AS
-- Note: you can check the queue by running this query
-- SELECT * FROM sys.conversation_endpoints GO
DECLARE #getid CURSOR
,#sql NVARCHAR(MAX)
,#conv_id NVARCHAR(100)
,#conv_handle NVARCHAR(100)
,#conv_service NVARCHAR(100)
-- ,#far_service NVARCHAR(256) = N'One_Specific_Service_Target';
-- want to create and execute a chain of statements like this, one per conversation
-- END CONVERSATION 'FE851F37-218C-EA11-B698-4CCC6AD00AE9' WITH CLEANUP;
-- END CONVERSATION 'A4B4F603-208C-EA11-B698-4CCC6AD00AE9' WITH CLEANUP;
SET #getid = CURSOR FOR
SELECT [conversation_id], [conversation_handle], [far_service]
FROM sys.conversation_endpoints
WHERE NOT([State] = 'CO')
-- CO = CONVERSING [State]
-- alternatively, might like one service name only
-- WHERE far_service = #far_service
OPEN #getid
FETCH NEXT
FROM #getid INTO #conv_id, #conv_handle, #conv_service
WHILE ##FETCH_STATUS = 0
BEGIN
SET #sql = 'END CONVERSATION ' + char(39) + #conv_handle + char(39) + ' WITH CLEANUP;'
EXEC sys.sp_executesql #stmt = #sql;
FETCH NEXT
FROM #getid INTO #conv_id, #conv_handle, #conv_service
END
CLOSE #getid
DEALLOCATE #getid
Then you can execute the newly created stored procedure "mqConversationsClearAll" whenever you want to clear sys.conversation_endpoints