Lock: Timeout - @@LOCK_TIMEOUT

Hi,
Trace file which I have here, contains many Lock: Timeout
events. I don't understand how is it possible when
@.@.LOCK_TIMEOUT is set to -1 for all connections.
Thanks,
OJThis event is generated by a low level system component. Please post the
entire event data column for us to understand the situation.
--
Wei Xiao [MSFT]
SQL Server Storage Engine Development
http://weblogs.asp.net/weix
This posting is provided "AS IS" with no warranties, and confers no rights.
"OJ" <anonymous@.discussions.microsoft.com> wrote in message
news:200b01c4dca6$c0f48a30$a301280a@.phx.gbl...
> Hi,
> Trace file which I have here, contains many Lock: Timeout
> events. I don't understand how is it possible when
> @.@.LOCK_TIMEOUT is set to -1 for all connections.
> Thanks,
> OJ|||I'm not sure how this can help, but here it is (one of
many examples):
row_number=188337
event_class=27
text_Data=NULL
Binary_data=0x000707000DD07C4F23006F01DE541AB4
DatabaseID=14
HostName=PROD1
SPID=73
ObjectID=1333579789
IndexID=30
Mode=3
Also, some of them are caused by SPID lower than 50, and
mode in that case is: 5.
Thanks,
OJ
>--Original Message--
>This event is generated by a low level system component.
Please post the
>entire event data column for us to understand the
situation.
>--
>Wei Xiao [MSFT]
>SQL Server Storage Engine Development
>http://weblogs.asp.net/weix
>This posting is provided "AS IS" with no warranties, and
confers no rights.
>"OJ" <anonymous@.discussions.microsoft.com> wrote in
message
>news:200b01c4dca6$c0f48a30$a301280a@.phx.gbl...
>> Hi,
>> Trace file which I have here, contains many Lock:
Timeout
>> events. I don't understand how is it possible when
>> @.@.LOCK_TIMEOUT is set to -1 for all connections.
>> Thanks,
>> OJ
>
>.
>|||As an optimization, SQL Server internally needs to check if a transaction
can acquire some locks without waiting. When this fails, the lock timeout
event is generated (with a duration of 0) but SQL Server will wait for the
lock instead.
The value of the "Duration" column indicates for how long SQL Server waits
before the timeout. If the value is 0, then this is the internal no-wait
timeout.
--
Wei Xiao [MSFT]
SQL Server Storage Engine Development
http://weblogs.asp.net/weix
This posting is provided "AS IS" with no warranties, and confers no rights.
"OJ" <anonymous@.discussions.microsoft.com> wrote in message
news:193d01c4dd59$34acbc60$a501280a@.phx.gbl...
> I'm not sure how this can help, but here it is (one of
> many examples):
> row_number=188337
> event_class=27
> text_Data=NULL
> Binary_data=0x000707000DD07C4F23006F01DE541AB4
> DatabaseID=14
> HostName=PROD1
> SPID=73
> ObjectID=1333579789
> IndexID=30
> Mode=3
>
> Also, some of them are caused by SPID lower than 50, and
> mode in that case is: 5.
> Thanks,
> OJ
>>--Original Message--
>>This event is generated by a low level system component.
> Please post the
>>entire event data column for us to understand the
> situation.
>>--
>>Wei Xiao [MSFT]
>>SQL Server Storage Engine Development
>>http://weblogs.asp.net/weix
>>This posting is provided "AS IS" with no warranties, and
> confers no rights.
>>"OJ" <anonymous@.discussions.microsoft.com> wrote in
> message
>>news:200b01c4dca6$c0f48a30$a301280a@.phx.gbl...
>> Hi,
>> Trace file which I have here, contains many Lock:
> Timeout
>> events. I don't understand how is it possible when
>> @.@.LOCK_TIMEOUT is set to -1 for all connections.
>> Thanks,
>> OJ
>>
>>.|||Thanks
>--Original Message--
>As an optimization, SQL Server internally needs to check
if a transaction
>can acquire some locks without waiting. When this fails,
the lock timeout
>event is generated (with a duration of 0) but SQL Server
will wait for the
>lock instead.
>The value of the "Duration" column indicates for how long
SQL Server waits
>before the timeout. If the value is 0, then this is the
internal no-wait
>timeout.
>--
>Wei Xiao [MSFT]
>SQL Server Storage Engine Development
>http://weblogs.asp.net/weix
>This posting is provided "AS IS" with no warranties, and
confers no rights.
>"OJ" <anonymous@.discussions.microsoft.com> wrote in
message
>news:193d01c4dd59$34acbc60$a501280a@.phx.gbl...
>> I'm not sure how this can help, but here it is (one of
>> many examples):
>> row_number=188337
>> event_class=27
>> text_Data=NULL
>> Binary_data=0x000707000DD07C4F23006F01DE541AB4
>> DatabaseID=14
>> HostName=PROD1
>> SPID=73
>> ObjectID=1333579789
>> IndexID=30
>> Mode=3
>>
>> Also, some of them are caused by SPID lower than 50, and
>> mode in that case is: 5.
>> Thanks,
>> OJ
>>--Original Message--
>>This event is generated by a low level system component.
>> Please post the
>>entire event data column for us to understand the
>> situation.
>>--
>>Wei Xiao [MSFT]
>>SQL Server Storage Engine Development
>>http://weblogs.asp.net/weix
>>This posting is provided "AS IS" with no warranties, and
>> confers no rights.
>>"OJ" <anonymous@.discussions.microsoft.com> wrote in
>> message
>>news:200b01c4dca6$c0f48a30$a301280a@.phx.gbl...
>> Hi,
>> Trace file which I have here, contains many Lock:
>> Timeout
>> events. I don't understand how is it possible when
>> @.@.LOCK_TIMEOUT is set to -1 for all connections.
>> Thanks,
>> OJ
>>
>>.
>
>.
>sql

Lock: Timeout

I enabled SQL Server Profiler Trace to findout performance issue for one of the application. And I am seeing Lock: Timeout eventclass with duration of 0 on tempdb database with objectID 0. Does this mean anything or need to be worried about?

Because I am seeing this many times in 20 mins trace.

Please check whether you or application is generating static cursor. Static cursors create table in tempdb

Lock Timeout Resource

Using sql 2000 profiler I traced the event lock timout. In the binary field I get a value
0x000705003B468D2402000D00F5A8D578
BOL says this is the resource type. How or where do I go to get an english translation to the binary recordThis is a multi-part message in MIME format.
--=_NextPart_000_0113_01C443EA.7DB46880
Content-Type: text/plain;
charset="Utf-8"
Content-Transfer-Encoding: quoted-printable
Is this a KEY resource? If so, this value is a hash value based on the =index key, and cannot be translated. You could potentially get more =information by looking at the ObjectID or IndexID columns. What is the =duration of the lock timeout? You may see durations of 0 for this =event, which are internal timeouts that are not anything to worry about. =
If you are concerned about blocking, see if =http://support.microsoft.com/?id=3D271509 and =http://support.microsoft.com/?id=3D224453 help you out any.
Thanks,
Ryan Stonecipher
Microsoft SQL Server Storage Engine
"Eugene" <anonymous@.discussions.microsoft.com> wrote in message =news:46470501-4BF8-47B1-A71E-631F135197AE@.microsoft.com...
Using sql 2000 profiler I traced the event lock timout. In the binary =field I get a value,
0x000705003B468D2402000D00F5A8D578,
BOL says this is the resource type. How or where do I go to get an =english translation to the binary record?
--=_NextPart_000_0113_01C443EA.7DB46880
Content-Type: text/html;
charset="Utf-8"
Content-Transfer-Encoding: quoted-printable
=EF=BB=BF<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
&

---

Is this a KEY resource? =If so, this value is a hash value based on the index key, and cannot be translated. You could potentially get more information by looking =at the ObjectID or IndexID columns. What is the duration of the lock timeout? You may see durations of 0 for this event, which are =internal timeouts that are not anything to worry about.
If you are concerned about blocking, see if http://support.microsoft.com/?id=3D271509">http://support.microso=ft.com/?id=3D271509 and http://support.microsoft.com/?id=3D224453">http://support.microso=ft.com/?id=3D224453 help you out any.
Thanks,
Ryan Stonecipher
Microsoft SQL Server Storage Engine
"Eugene" wrote in message news:464=70501-4BF8-47B1-A71E-631F135197AE@.microsoft.com...Using sql 2000 profiler I traced the event lock timout. In the binary =field I get a value,0x000705003B468D2402000D00F5A8D578,BOL says this =is the resource type. How or where do I go to get an english translation to =the binary record?

---

--=_NextPart_000_0113_01C443EA.7DB46880--

Lock Timeout Resource

Using sql 2000 profiler I traced the event lock timout. In the binary field
I get a value,
0x000705003B468D2402000D00F5A8D578,
BOL says this is the resource type. How or where do I go to get an english t
ranslation to the binary record?Is this a KEY resource? If so, this value is a hash value based on the inde
x key, and cannot be translated. You could potentially get more information
by looking at the ObjectID or IndexID columns. What is the duration of the
lock timeout? You may see durations of 0 for this event, which are interna
l timeouts that are not anything to worry about.
If you are concerned about blocking, see if http://support.microsoft.com/?id=271509 and
http://support.microsoft.com/?id=224453 help you out any.
Thanks,
Ryan Stonecipher
Microsoft SQL Server Storage Engine
"Eugene" <anonymous@.discussions.microsoft.com> wrote in message news:4647050
1-4BF8-47B1-A71E-631F135197AE@.microsoft.com...
Using sql 2000 profiler I traced the event lock timout. In the binary field
I get a value,
0x000705003B468D2402000D00F5A8D578,
BOL says this is the resource type. How or where do I go to get an english t
ranslation to the binary record?

Lock Timeout Resource

Using sql 2000 profiler I traced the event lock timout. In the binary field I get a value,
0x000705003B468D2402000D00F5A8D578,
BOL says this is the resource type. How or where do I go to get an english translation to the binary record?
Is this a KEY resource? If so, this value is a hash value based on the index key, and cannot be translated. You could potentially get more information by looking at the ObjectID or IndexID columns. What is the duration of the lock timeout? You may see durations of 0 for this event, which are internal timeouts that are not anything to worry about.
If you are concerned about blocking, see if http://support.microsoft.com/?id=271509 and http://support.microsoft.com/?id=224453 help you out any.
Thanks,
Ryan Stonecipher
Microsoft SQL Server Storage Engine
"Eugene" <anonymous@.discussions.microsoft.com> wrote in message news:46470501-4BF8-47B1-A71E-631F135197AE@.microsoft.com...
Using sql 2000 profiler I traced the event lock timout. In the binary field I get a value,
0x000705003B468D2402000D00F5A8D578,
BOL says this is the resource type. How or where do I go to get an english translation to the binary record?
sql

lock timeout

my SQL studio view is running into timeout error block. how do i insert the

SET LOCK_TIMEOUT -1
GO

in the SQL statement of the view to allow this to run to completion? an example of the SQL view is;

SELECT TOP (100) PERCENT dbo.Entry_Race.E_TDR, dbo.Entry_Race.E_Surface, dbo.Entry_Race.E_Race_Class_Codes,
FROM dbo.Entry_Race INNER JOIN
dbo.Entry_Horse ON dbo.Entry_Race.E_TDR = dbo.Entry_Horse.E_TDR
WHERE (CONVERT(varchar(07), dbo.Entry_Horse.E_Date) BETWEEN CONVERT(varchar(07), GETDATE(), 0) AND CONVERT(varchar(07), GETDATE() + 1, 0))
ORDER BY dbo.Entry_Race.E_TDR, dbo.Entry_Horse.E_Horse, dbo.Entry_Horse.E_Traininer

Do you really need to wait indefinitelly? It is not a very normal situation to have the client waiting tens of seconds for a response - why not using a more optimistic locking mechanism?

You shouldn't user the convert funcion to compare the dates, but using dateadd () over the getdate() functions and compare directly - as it is, any indexes over dbo.Entry_Horse.E_Date will not be used by SQL...

Lock Timeout

I am getting this error on a 2000 server:
"Server: Msg 1222, Level 16, State 54, Line 15
Lock request time out period exceeded."
when I run the following query
"SET ROWCOUNT 10000
declare @.counter bigint
-- Also try 5000, 10000 etc
set @.counter = 0
WHILE 1 = 1
BEGIN
set @.counter = @.counter + 1
print '@.counter = ' + cast(@.counter as varchar(10))
delete from dbname..tabname
where process_dt = CONVERT(SMALLDATETIME,'10/13/2005')
IF @.@.ROWCOUNT = 0
BREAK
END
SET ROWCOUNT 0"
I checked in my Query Analyzer options and I've got lock timeout set to 120
seconds. But the above query fails instantly, so it's not even waiting the
120 seconds. What gives? Any tips would be much appreciated.
Nevermind. I figured it out.
"CLM" wrote:

> I am getting this error on a 2000 server:
> "Server: Msg 1222, Level 16, State 54, Line 15
> Lock request time out period exceeded."
> when I run the following query
> "SET ROWCOUNT 10000
> declare @.counter bigint
> -- Also try 5000, 10000 etc
> set @.counter = 0
> WHILE 1 = 1
> BEGIN
> set @.counter = @.counter + 1
> print '@.counter = ' + cast(@.counter as varchar(10))
> delete from dbname..tabname
> where process_dt = CONVERT(SMALLDATETIME,'10/13/2005')
> IF @.@.ROWCOUNT = 0
> BREAK
> END
> SET ROWCOUNT 0"
> I checked in my Query Analyzer options and I've got lock timeout set to 120
> seconds. But the above query fails instantly, so it's not even waiting the
> 120 seconds. What gives? Any tips would be much appreciated.
>

Lock Timeout

I am getting this error on a 2000 server:
"Server: Msg 1222, Level 16, State 54, Line 15
Lock request time out period exceeded."
when I run the following query
"SET ROWCOUNT 10000
declare @.counter bigint
-- Also try 5000, 10000 etc
set @.counter = 0
WHILE 1 = 1
BEGIN
set @.counter = @.counter + 1
print '@.counter = ' + cast(@.counter as varchar(10))
delete from dbname..tabname
where process_dt = CONVERT(SMALLDATETIME,'10/13/2005')
IF @.@.ROWCOUNT = 0
BREAK
END
SET ROWCOUNT 0"
I checked in my Query Analyzer options and I've got lock timeout set to 120
seconds. But the above query fails instantly, so it's not even waiting the
120 seconds. What gives? Any tips would be much appreciated.Nevermind. I figured it out.
"CLM" wrote:

> I am getting this error on a 2000 server:
> "Server: Msg 1222, Level 16, State 54, Line 15
> Lock request time out period exceeded."
> when I run the following query
> "SET ROWCOUNT 10000
> declare @.counter bigint
> -- Also try 5000, 10000 etc
> set @.counter = 0
> WHILE 1 = 1
> BEGIN
> set @.counter = @.counter + 1
> print '@.counter = ' + cast(@.counter as varchar(10))
> delete from dbname..tabname
> where process_dt = CONVERT(SMALLDATETIME,'10/13/2005')
> IF @.@.ROWCOUNT = 0
> BREAK
> END
> SET ROWCOUNT 0"
> I checked in my Query Analyzer options and I've got lock timeout set to 12
0
> seconds. But the above query fails instantly, so it's not even waiting th
e
> 120 seconds. What gives? Any tips would be much appreciated.
>

Lock Timeout

I am getting this error on a 2000 server:
"Server: Msg 1222, Level 16, State 54, Line 15
Lock request time out period exceeded."
when I run the following query
"SET ROWCOUNT 10000
declare @.counter bigint
-- Also try 5000, 10000 etc
set @.counter = 0
WHILE 1 = 1
BEGIN
set @.counter = @.counter + 1
print '@.counter = ' + cast(@.counter as varchar(10))
delete from dbname..tabname
where process_dt = CONVERT(SMALLDATETIME,'10/13/2005')
IF @.@.ROWCOUNT = 0
BREAK
END
SET ROWCOUNT 0"
I checked in my Query Analyzer options and I've got lock timeout set to 120
seconds. But the above query fails instantly, so it's not even waiting the
120 seconds. What gives? Any tips would be much appreciated.Nevermind. I figured it out.
"CLM" wrote:
> I am getting this error on a 2000 server:
> "Server: Msg 1222, Level 16, State 54, Line 15
> Lock request time out period exceeded."
> when I run the following query
> "SET ROWCOUNT 10000
> declare @.counter bigint
> -- Also try 5000, 10000 etc
> set @.counter = 0
> WHILE 1 = 1
> BEGIN
> set @.counter = @.counter + 1
> print '@.counter = ' + cast(@.counter as varchar(10))
> delete from dbname..tabname
> where process_dt = CONVERT(SMALLDATETIME,'10/13/2005')
> IF @.@.ROWCOUNT = 0
> BREAK
> END
> SET ROWCOUNT 0"
> I checked in my Query Analyzer options and I've got lock timeout set to 120
> seconds. But the above query fails instantly, so it's not even waiting the
> 120 seconds. What gives? Any tips would be much appreciated.
>

Lock timeout

Hi all,
I need to set a default value for lock timeout on all
connections. Is there any way to do this without running:
set @.@.lock_timeout = ?
at the beginning of every connection? I'd like a global
setting on this.
Best regardsHi,
I feel there is no setting to control Lock time out at server level.
Thanks
Hari
MCDBA
"Johnny" <anonymous@.discussions.microsoft.com> wrote in message
news:0a5c01c3c8f9$8a88d120$a001280a@.phx.gbl...
> Hi all,
> I need to set a default value for lock timeout on all
> connections. Is there any way to do this without running:
> set @.@.lock_timeout = ?
> at the beginning of every connection? I'd like a global
> setting on this.
> Best regardssql

lock timeout

Hello All-
I've been troubleshooting deadlocks in a third-party app. I ran a trace with the Lock:Deadlock, Lock:Timeout, RPC:Starting, SQL Batch:Starting, and all Error and Warning events. I then imported the output files into a table for analysis. My results show 90,000+ Lock:Timeout events and 20 Lock:Deadlock events for a 5 hour period! The vast majority of the Lock:Timeout events are for index or table resources. The server is running SQL2K, sp3a.
Here's my questions:
-Shouldn't I be seeing corresponding Attention or Exception events for the Lock:Timeouts? I thought SQL Server returned an error 1229 to the client and terminated the statement on a lock timeout. Would I not see this in the trace? Do I really have 90,000+ statements being terminated?
-a small number of the database ids in the Lock:Timeout events are large ids not included in sysdatabases. Where are these coming from? A bug?
-My developers swear that they are not setting a lock_timeout on their connections. Nor can I find a SET LOCK_TIMEOUT statement in the trace output. So why am I getting all these timeouts? I thought SQL Server by default waited indefinitely on a lock.
I confused! Any insight would be greatly appreciated.
thanks-
MargaretUnfortunately that counter is pretty much useless since it includes internal
lightweight timeouts that are normal and always present. You pretty much
have to forget about the majority of them as normal.
--
Andrew J. Kelly SQL MVP
"Margaret" <anonymous@.discussions.microsoft.com> wrote in message
news:57AEA811-A059-4426-B023-5FD611C7D330@.microsoft.com...
> Hello All-
> I've been troubleshooting deadlocks in a third-party app. I ran a trace
with the Lock:Deadlock, Lock:Timeout, RPC:Starting, SQL Batch:Starting, and
all Error and Warning events. I then imported the output files into a table
for analysis. My results show 90,000+ Lock:Timeout events and 20
Lock:Deadlock events for a 5 hour period! The vast majority of the
Lock:Timeout events are for index or table resources. The server is running
SQL2K, sp3a.
> Here's my questions:
> -Shouldn't I be seeing corresponding Attention or Exception events for the
Lock:Timeouts? I thought SQL Server returned an error 1229 to the client
and terminated the statement on a lock timeout. Would I not see this in the
trace? Do I really have 90,000+ statements being terminated?
> -a small number of the database ids in the Lock:Timeout events are large
ids not included in sysdatabases. Where are these coming from? A bug?
> -My developers swear that they are not setting a lock_timeout on their
connections. Nor can I find a SET LOCK_TIMEOUT statement in the trace
output. So why am I getting all these timeouts? I thought SQL Server by
default waited indefinitely on a lock.
> I confused! Any insight would be greatly appreciated.
> thanks-
> Margaret
>