Lot Of Blockings in production server
-
Hi,
one of our production server we are getting lot of Blockings
i found the blocked process
i fired below queries
i tried to kill each ID but -- again and again too many blockings are happening
sp_who2
DBCC inputbuffer (ID)
iam getting below result -----------/for all Blocked Ids
set transaction isolation level read committed set implicit_transactions off
Please suggest to fix this issue
-
Who is the head blocker and what are they doing?
Run this:
SELECT dm_ws.wait_duration_ms,dm_ws.wait_type,
dm_es.status,
dm_t.TEXT,
dm_qp.query_plan,
dm_ws.session_ID,
dm_es.cpu_time,
dm_es.memory_usage,
dm_es.logical_reads,
dm_es.total_elapsed_time,
dm_es.program_name,
DB_NAME(dm_r.database_id) DatabaseName,
-- Optional columns
dm_ws.blocking_session_id,
dm_r.wait_resource,
dm_es.login_name,
dm_r.command,
dm_r.last_wait_type
FROM sys.dm_os_waiting_tasks dm_ws
INNER JOIN sys.dm_exec_requests dm_r ON dm_ws.session_id = dm_r.session_id
INNER JOIN sys.dm_exec_sessions dm_es ON dm_es.session_id = dm_r.session_id
CROSS APPLY sys.dm_exec_sql_text (dm_r.sql_handle) dm_t
CROSS APPLY sys.dm_exec_query_plan (dm_r.plan_handle) dm_qp
WHERE dm_es.is_user_process = 1
-
Do you know what those killed sessions were doing and the consequences of killing them?
Blocking: chapter 6 of http://www.simple-talk.com/books/sql-books/troubleshooting-sql-server-a-guide-for-the-accidental-dba/
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverabilityWe walk in the dark places no others will enter
We stand on the bridge and no one may pass -
Another very useful resource to track down blocking.
--------------------
Colt 45 - the original point and click interface
Viewing 4 posts - 1 through 3 (of 3 total)
You must be logged in to reply to this topic. Login to reply